libpod

package
v1.9.3 Latest Latest
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 Go to latest Published: May 22, 2020 License: Apache-2.0 Imports: 103 Imported by: 27

Documentation

Index

Constants

View Source 
const (
	// RestartPolicyNone indicates that no restart policy has been requested
	// by a container.
	RestartPolicyNone = ""
	// RestartPolicyNo is identical in function to RestartPolicyNone.
	RestartPolicyNo = "no"
	// RestartPolicyAlways unconditionally restarts the container.
	RestartPolicyAlways = "always"
	// RestartPolicyOnFailure restarts the container on non-0 exit code,
	// with an optional maximum number of retries.
	RestartPolicyOnFailure = "on-failure"
)

Valid restart policy types.

View Source 
const (
	// InspectAnnotationCIDFile is used by Inspect to determine if a
	// container ID file was created for the container.
	// If an annotation with this key is found in the OCI spec, it will be
	// used in the output of Inspect().
	InspectAnnotationCIDFile = "io.podman.annotations.cid-file"
	// InspectAnnotationAutoremove is used by Inspect to determine if a
	// container will be automatically removed on exit.
	// If an annotation with this key is found in the OCI spec and is one of
	// the two supported boolean values (InspectResponseTrue and
	// InspectResponseFalse) it will be used in the output of Inspect().
	InspectAnnotationAutoremove = "io.podman.annotations.autoremove"
	// InspectAnnotationVolumesFrom is used by Inspect to identify
	// containers whose volumes are are being used by this container.
	// It is expected to be a comma-separated list of container names and/or
	// IDs.
	// If an annotation with this key is found in the OCI spec, it will be
	// used in the output of Inspect().
	InspectAnnotationVolumesFrom = "io.podman.annotations.volumes-from"
	// InspectAnnotationPrivileged is used by Inspect to identify containers
	// which are privileged (IE, running with elevated privileges).
	// It is expected to be a boolean, populated by one of
	// InspectResponseTrue or InspectResponseFalse.
	// If an annotation with this key is found in the OCI spec, it will be
	// used in the output of Inspect().
	InspectAnnotationPrivileged = "io.podman.annotations.privileged"
	// InspectAnnotationPublishAll is used by Inspect to identify containers
	// which have all the ports from their image published.
	// It is expected to be a boolean, populated by one of
	// InspectResponseTrue or InspectResponseFalse.
	// If an annotation with this key is found in the OCI spec, it will be
	// used in the output of Inspect().
	InspectAnnotationPublishAll = "io.podman.annotations.publish-all"
	// InspectAnnotationInit is used by Inspect to identify containers that
	// mount an init binary in.
	// It is expected to be a boolean, populated by one of
	// InspectResponseTrue or InspectResponseFalse.
	// If an annotation with this key is found in the OCI spec, it will be
	// used in the output of Inspect().
	InspectAnnotationInit = "io.podman.annotations.init"
	// InspectAnnotationLabel is used by Inspect to identify containers with
	// special SELinux-related settings. It is used to populate the output
	// of the SecurityOpt setting.
	// If an annotation with this key is found in the OCI spec, it will be
	// used in the output of Inspect().
	InspectAnnotationLabel = "io.podman.annotations.label"
	// InspectAnnotationSeccomp is used by Inspect to identify containers
	// with special Seccomp-related settings. It is used to populate the
	// output of the SecurityOpt setting in Inspect.
	// If an annotation with this key is found in the OCI spec, it will be
	// used in the output of Inspect().
	InspectAnnotationSeccomp = "io.podman.annotations.seccomp"
	// InspectAnnotationApparmor is used by Inspect to identify containers
	// with special Apparmor-related settings. It is used to populate the
	// output of the SecurityOpt setting.
	// If an annotation with this key is found in the OCI spec, it will be
	// used in the output of Inspect().
	InspectAnnotationApparmor = "io.podman.annotations.apparmor"

	// InspectResponseTrue is a boolean True response for an inspect
	// annotation.
	InspectResponseTrue = "TRUE"
	// InspectResponseFalse is a boolean False response for an inspect
	// annotation.
	InspectResponseFalse = "FALSE"
)
View Source 
const (
	// HealthCheckSuccess means the health worked
	HealthCheckSuccess HealthCheckStatus = iota
	// HealthCheckFailure means the health ran and failed
	HealthCheckFailure HealthCheckStatus = iota
	// HealthCheckContainerStopped means the health check cannot
	// be run because the container is stopped
	HealthCheckContainerStopped HealthCheckStatus = iota
	// HealthCheckContainerNotFound means the container could
	// not be found in local store
	HealthCheckContainerNotFound HealthCheckStatus = iota
	// HealthCheckNotDefined means the container has no health
	// check defined in it
	HealthCheckNotDefined HealthCheckStatus = iota
	// HealthCheckInternalError means some something failed obtaining or running
	// a given health check
	HealthCheckInternalError HealthCheckStatus = iota
	// HealthCheckDefined means the healthcheck was found on the container
	HealthCheckDefined HealthCheckStatus = iota

	// MaxHealthCheckNumberLogs is the maximum number of attempts we keep
	// in the healthcheck history file
	MaxHealthCheckNumberLogs int = 5
	// MaxHealthCheckLogLength in characters
	MaxHealthCheckLogLength = 500

	// HealthCheckHealthy describes a healthy container
	HealthCheckHealthy string = "healthy"
	// HealthCheckUnhealthy describes an unhealthy container
	HealthCheckUnhealthy string = "unhealthy"
	// HealthCheckStarting describes the time between when the container starts
	// and the start-period (time allowed for the container to start and application
	// to be running) expires.
	HealthCheckStarting string = "starting"
)
View Source 
const (
	// MountPrivate represents the private mount option.
	MountPrivate = "private"
	// MountRPrivate represents the rprivate mount option.
	MountRPrivate = "rprivate"
	// MountShared represents the shared mount option.
	MountShared = "shared"
	// MountRShared represents the rshared mount option.
	MountRShared = "rshared"
	// MountSlave represents the slave mount option.
	MountSlave = "slave"
	// MountRSlave represents the rslave mount option.
	MountRSlave = "rslave"
)
View Source 
const (
	AttachPipeStdin  = 1
	AttachPipeStdout = 2
	AttachPipeStderr = 3
)

Sync with stdpipe_t in conmon.c

View Source 
const CgroupfsDefaultCgroupParent = "/libpod_parent"

CgroupfsDefaultCgroupParent is the cgroup parent for CGroupFS in libpod

View Source 
const DefaultWaitInterval = 250 * time.Millisecond

DefaultWaitInterval is the default interval between container status checks while waiting.

View Source 
const (
	// IDTruncLength is the length of the pod's id that will be used to make the
	// infra container name
	IDTruncLength = 12
)
View Source 
const JSONLogging = "json-file"

JSONLogging is the string conmon expects when specifying to use the json logging format

View Source 
const JournaldLogging = "journald"

JournaldLogging is the string conmon expects to specify journald logging

View Source 
const KubernetesLogging = "k8s-file"

KubernetesLogging is the string conmon expects when specifying to use the kubernetes logging format

View Source 
const SystemdDefaultCgroupParent = "machine.slice"

SystemdDefaultCgroupParent is the cgroup parent for the systemd cgroup manager in libpod

View Source 
const SystemdDefaultRootlessCgroupParent = "user.slice"

SystemdDefaultRootlessCgroupParent is the cgroup parent for the systemd cgroup manager in libpod when running as rootless

Variables

View Source 
var (
	// NameRegex is a regular expression to validate container/pod names.
	// This must NOT be changed from outside of Libpod. It should be a
	// constant, but Go won't let us do that.
	NameRegex = regexp.MustCompile("^[a-zA-Z0-9][a-zA-Z0-9_.-]*$")
	// RegexError is thrown in presence of an invalid container/pod name.
	RegexError = errors.Wrapf(define.ErrInvalidArg, "names must match [a-zA-Z0-9][a-zA-Z0-9_.-]*")
)

Functions

func CreatePodStatusResults added in v1.8.0 

func CreatePodStatusResults(ctrStatuses map[string]define.ContainerStatus) (string, error)

func DefaultSeccompPath added in v1.6.3 

func DefaultSeccompPath() (string, error)

DefaultSeccompPath returns the path to the default seccomp.json file if it exists, first it checks OverrideSeccomp and then default. If neither exist function returns ""

func DownloadFromFile added in v1.8.0 

func DownloadFromFile(reader *os.File) (string, error)

DownloadFromFile reads all of the content from the reader and temporarily saves in it $TMPDIR/importxyz, which is deleted after the image is imported

func FuncTimer 

func FuncTimer(funcName string)

FuncTimer helps measure the execution time of a function For debug purposes, do not leave in code used like defer FuncTimer("foo")

func GenerateKubeServiceFromV1Pod added in v1.0.0 

func GenerateKubeServiceFromV1Pod(pod *v1.Pod, servicePorts []v1.ServicePort) v1.Service

GenerateKubeServiceFromV1Pod creates a v1 service object from a v1 pod object

func JSONDeepCopy added in v1.2.0 

func JSONDeepCopy(from, to interface{}) error

JSONDeepCopy performs a deep copy by performing a JSON encode/decode of the given structures. From and To should be identically typed structs.

func LabelVolumePath added in v1.2.0 

func LabelVolumePath(path string) error

LabelVolumePath takes a mount path for a volume and gives it an selinux label of either shared or not

func MountExists added in v0.2.2 

func MountExists(specMounts []spec.Mount, dest string) bool

MountExists returns true if dest exists in the list of mounts

func RemoveScientificNotationFromFloat 

func RemoveScientificNotationFromFloat(x float64) (float64, error)

RemoveScientificNotationFromFloat returns a float without any scientific notation if the number has any. golang does not handle conversion of float64s that have scientific notation in them and otherwise stinks. please replace this if you have a better implementation.

func SetXdgDirs added in v1.5.0 

func SetXdgDirs() error

SetXdgDirs ensures the XDG_RUNTIME_DIR env and XDG_CONFIG_HOME variables are set. containers/image uses XDG_RUNTIME_DIR to locate the auth file, XDG_CONFIG_HOME is use for the libpod.conf configuration file.

func Unmount added in v1.6.2 

func Unmount(mount string)

Unmount umounts a target directory

func WaitForFile added in v0.3.1 

func WaitForFile(path string, chWait chan error, timeout time.Duration) (bool, error)

WaitForFile waits until a file has been created or the given timeout has occurred

Types

type BoltState 

type BoltState struct {
	// contains filtered or unexported fields
}

BoltState is a state implementation backed by a Bolt DB

func (*BoltState) AddContainer 

func (s *BoltState) AddContainer(ctr *Container) error

AddContainer adds a container to the state The container being added cannot belong to a pod

func (*BoltState) AddContainerToPod 

func (s *BoltState) AddContainerToPod(pod *Pod, ctr *Container) error

AddContainerToPod adds the given container to an existing pod The container will be added to the state and the pod

func (*BoltState) AddExecSession added in v1.9.0 

func (s *BoltState) AddExecSession(ctr *Container, session *ExecSession) error

AddExecSession adds an exec session to the state.

func (*BoltState) AddPod 

func (s *BoltState) AddPod(pod *Pod) error

AddPod adds the given pod to the state.

func (*BoltState) AddVolume added in v0.12.1 

func (s *BoltState) AddVolume(volume *Volume) error

AddVolume adds the given volume to the state. It also adds ctrDepID to the sub bucket holding the container dependencies that this volume has

func (*BoltState) AllContainers 

func (s *BoltState) AllContainers() ([]*Container, error)

AllContainers retrieves all the containers in the database

func (*BoltState) AllPods 

func (s *BoltState) AllPods() ([]*Pod, error)

AllPods returns all pods present in the state

func (*BoltState) AllVolumes added in v0.12.1 

func (s *BoltState) AllVolumes() ([]*Volume, error)

AllVolumes returns all volumes present in the state

func (*BoltState) Close 

func (s *BoltState) Close() error

Close closes the state and prevents further use

func (*BoltState) Container 

func (s *BoltState) Container(id string) (*Container, error)

Container retrieves a single container from the state by its full ID

func (*BoltState) ContainerInUse 

func (s *BoltState) ContainerInUse(ctr *Container) ([]string, error)

ContainerInUse checks if other containers depend on the given container It returns a slice of the IDs of the containers depending on the given container. If the slice is empty, no containers depend on the given container

func (*BoltState) GetContainerConfig added in v1.6.2 

func (s *BoltState) GetContainerConfig(id string) (*ContainerConfig, error)

GetContainerConfig returns a container config from the database by full ID

func (*BoltState) GetContainerExecSessions added in v1.9.0 

func (s *BoltState) GetContainerExecSessions(ctr *Container) ([]string, error)

GetContainerExecSessions retrieves the IDs of all exec sessions running in a container that the database is aware of (IE, were added via AddExecSession).

func (*BoltState) GetDBConfig added in v0.12.1 

func (s *BoltState) GetDBConfig() (*DBConfig, error)

GetDBConfig retrieves runtime configuration fields that were created when the database was first initialized

func (*BoltState) GetExecSession added in v1.9.0 

func (s *BoltState) GetExecSession(id string) (string, error)

GetExecSession returns the ID of the container an exec session is associated with.

func (*BoltState) HasContainer 

func (s *BoltState) HasContainer(id string) (bool, error)

HasContainer checks if a container is present in the state

func (*BoltState) HasPod 

func (s *BoltState) HasPod(id string) (bool, error)

HasPod checks if a pod with the given ID exists in the state

func (*BoltState) HasVolume added in v0.12.1 

func (s *BoltState) HasVolume(name string) (bool, error)

HasVolume returns true if the given volume exists in the state, otherwise it returns false

func (*BoltState) LookupContainer 

func (s *BoltState) LookupContainer(idOrName string) (*Container, error)

LookupContainer retrieves a container from the state by full or unique partial ID or name

func (*BoltState) LookupContainerID added in v1.6.2 

func (s *BoltState) LookupContainerID(idOrName string) (string, error)

LookupContainerID retrieves a container ID from the state by full or unique partial ID or name

func (*BoltState) LookupPod 

func (s *BoltState) LookupPod(idOrName string) (*Pod, error)

LookupPod retrieves a pod from full or unique partial ID or name

func (*BoltState) LookupVolume added in v1.6.0 

func (s *BoltState) LookupVolume(name string) (*Volume, error)

LookupVolume locates a volume from a partial name.

func (*BoltState) Pod 

func (s *BoltState) Pod(id string) (*Pod, error)

Pod retrieves a pod given its full ID

func (*BoltState) PodContainers 

func (s *BoltState) PodContainers(pod *Pod) ([]*Container, error)

PodContainers returns all the containers present in the given pod

func (*BoltState) PodContainersByID 

func (s *BoltState) PodContainersByID(pod *Pod) ([]string, error)

PodContainersByID returns the IDs of all containers present in the given pod

func (*BoltState) PodHasContainer 

func (s *BoltState) PodHasContainer(pod *Pod, id string) (bool, error)

PodHasContainer checks if the given pod has a container with the given ID

func (*BoltState) Refresh 

func (s *BoltState) Refresh() error

Refresh clears container and pod states after a reboot

func (*BoltState) RemoveContainer 

func (s *BoltState) RemoveContainer(ctr *Container) error

RemoveContainer removes a container from the state Only removes containers not in pods - for containers that are a member of a pod, use RemoveContainerFromPod

func (*BoltState) RemoveContainerExecSessions added in v1.9.0 

func (s *BoltState) RemoveContainerExecSessions(ctr *Container) error

RemoveContainerExecSessions removes all exec sessions attached to a given container.

func (*BoltState) RemoveContainerFromPod 

func (s *BoltState) RemoveContainerFromPod(pod *Pod, ctr *Container) error

RemoveContainerFromPod removes a container from an existing pod The container will also be removed from the state

func (*BoltState) RemoveExecSession added in v1.9.0 

func (s *BoltState) RemoveExecSession(session *ExecSession) error

RemoveExecSession removes references to the given exec session in the database.

func (*BoltState) RemovePod 

func (s *BoltState) RemovePod(pod *Pod) error

RemovePod removes the given pod from the state Only empty pods can be removed

func (*BoltState) RemovePodContainers 

func (s *BoltState) RemovePodContainers(pod *Pod) error

RemovePodContainers removes all containers in a pod

func (*BoltState) RemoveVolume added in v0.12.1 

func (s *BoltState) RemoveVolume(volume *Volume) error

RemoveVolume removes the given volume from the state

func (*BoltState) RewriteContainerConfig added in v1.1.0 

func (s *BoltState) RewriteContainerConfig(ctr *Container, newCfg *ContainerConfig) error

RewriteContainerConfig rewrites a container's configuration. WARNING: This function is DANGEROUS. Do not use without reading the full comment on this function in state.go.

func (*BoltState) RewritePodConfig added in v1.1.0 

func (s *BoltState) RewritePodConfig(pod *Pod, newCfg *PodConfig) error

RewritePodConfig rewrites a pod's configuration. WARNING: This function is DANGEROUS. Do not use without reading the full comment on this function in state.go.

func (*BoltState) RewriteVolumeConfig added in v1.6.0 

func (s *BoltState) RewriteVolumeConfig(volume *Volume, newCfg *VolumeConfig) error

RewriteVolumeConfig rewrites a volume's configuration. WARNING: This function is DANGEROUS. Do not use without reading the full comment on this function in state.go.

func (*BoltState) SaveContainer 

func (s *BoltState) SaveContainer(ctr *Container) error

SaveContainer saves a container's current state in the database

func (*BoltState) SavePod added in v0.5.3 

func (s *BoltState) SavePod(pod *Pod) error

SavePod saves a pod's state to the database

func (*BoltState) SaveVolume added in v1.6.0 

func (s *BoltState) SaveVolume(volume *Volume) error

SaveVolume saves the volume's state to the database.

func (*BoltState) SetNamespace added in v0.7.4 

func (s *BoltState) SetNamespace(ns string) error

SetNamespace sets the namespace that will be used for container and pod retrieval

func (*BoltState) UpdateContainer 

func (s *BoltState) UpdateContainer(ctr *Container) error

UpdateContainer updates a container's state from the database

func (*BoltState) UpdatePod added in v0.5.3 

func (s *BoltState) UpdatePod(pod *Pod) error

UpdatePod updates a pod's state from the database

func (*BoltState) UpdateVolume added in v1.6.0 

func (s *BoltState) UpdateVolume(volume *Volume) error

UpdateVolume updates the volume's state from the database.

func (*BoltState) ValidateDBConfig added in v0.12.1 

func (s *BoltState) ValidateDBConfig(runtime *Runtime) error

ValidateDBConfig validates paths in the given runtime against the database

func (*BoltState) Volume added in v0.12.1 

func (s *BoltState) Volume(name string) (*Volume, error)

Volume retrieves a volume from full name

func (*BoltState) VolumeInUse added in v0.12.1 

func (s *BoltState) VolumeInUse(volume *Volume) ([]string, error)

VolumeInUse checks if any container is using the volume It returns a slice of the IDs of the containers using the given volume. If the slice is empty, no containers use the given volume

type ConmonOCIRuntime added in v1.6.2 

type ConmonOCIRuntime struct {
	// contains filtered or unexported fields
}

ConmonOCIRuntime is an OCI runtime managed by Conmon. TODO: Make all calls to OCI runtime have a timeout.

func (*ConmonOCIRuntime) AttachResize added in v1.8.0 

func (r *ConmonOCIRuntime) AttachResize(ctr *Container, newSize remotecommand.TerminalSize) error

AttachResize resizes the terminal used by the given container.

func (*ConmonOCIRuntime) AttachSocketPath added in v1.6.2 

func (r *ConmonOCIRuntime) AttachSocketPath(ctr *Container) (string, error)

AttachSocketPath is the path to a single container's attach socket.

func (*ConmonOCIRuntime) CheckpointContainer added in v1.6.2 

func (r *ConmonOCIRuntime) CheckpointContainer(ctr *Container, options ContainerCheckpointOptions) error

CheckpointContainer checkpoints the given container.

func (*ConmonOCIRuntime) CreateContainer added in v1.6.2 

func (r *ConmonOCIRuntime) CreateContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) (err error)

CreateContainer creates a container.

func (*ConmonOCIRuntime) DeleteContainer added in v1.6.2 

func (r *ConmonOCIRuntime) DeleteContainer(ctr *Container) error

DeleteContainer deletes a container from the OCI runtime.

func (*ConmonOCIRuntime) ExecAttachResize added in v1.9.0 

func (r *ConmonOCIRuntime) ExecAttachResize(ctr *Container, sessionID string, newSize remotecommand.TerminalSize) error

ExecAttachResize resizes the TTY of the given exec session.

func (*ConmonOCIRuntime) ExecAttachSocketPath added in v1.6.2 

func (r *ConmonOCIRuntime) ExecAttachSocketPath(ctr *Container, sessionID string) (string, error)

ExecAttachSocketPath is the path to a container's exec session attach socket.

func (*ConmonOCIRuntime) ExecContainer added in v1.6.2 

func (r *ConmonOCIRuntime) ExecContainer(c *Container, sessionID string, options *ExecOptions) (int, chan error, error)

ExecContainer executes a command in a running container TODO: Split into Create/Start/Attach/Wait

func (*ConmonOCIRuntime) ExecContainerCleanup added in v1.6.2 

func (r *ConmonOCIRuntime) ExecContainerCleanup(ctr *Container, sessionID string) error

ExecContainerCleanup cleans up files created when a command is run via ExecContainer. This includes the attach socket for the exec session.

func (*ConmonOCIRuntime) ExecStopContainer added in v1.6.2 

func (r *ConmonOCIRuntime) ExecStopContainer(ctr *Container, sessionID string, timeout uint) error

ExecStopContainer stops a given exec session in a running container.

func (*ConmonOCIRuntime) ExecUpdateStatus added in v1.7.0 

func (r *ConmonOCIRuntime) ExecUpdateStatus(ctr *Container, sessionID string) (bool, error)

ExecUpdateStatus checks if the given exec session is still running.

func (*ConmonOCIRuntime) ExitFilePath added in v1.6.2 

func (r *ConmonOCIRuntime) ExitFilePath(ctr *Container) (string, error)

ExitFilePath is the path to a container's exit file.

func (*ConmonOCIRuntime) HTTPAttach added in v1.8.0 

func (r *ConmonOCIRuntime) HTTPAttach(ctr *Container, httpConn net.Conn, httpBuf *bufio.ReadWriter, streams *HTTPAttachStreams, detachKeys *string, cancel <-chan bool) (deferredErr error)

HTTPAttach performs an attach for the HTTP API. The caller must handle closing the HTTP connection after this returns. The cancel channel is not closed; it is up to the caller to do so after this function returns. If this is a container with a terminal, we will stream raw. If it is not, we will stream with an 8-byte header to multiplex STDOUT and STDERR.

func (*ConmonOCIRuntime) KillContainer added in v1.6.2 

func (r *ConmonOCIRuntime) KillContainer(ctr *Container, signal uint, all bool) error

KillContainer sends the given signal to the given container. If all is set, send to all PIDs in the container. All is only supported if the container created cgroups.

func (*ConmonOCIRuntime) Name added in v1.6.2 

func (r *ConmonOCIRuntime) Name() string

Name returns the name of the runtime being wrapped by Conmon.

func (*ConmonOCIRuntime) Path added in v1.6.2 

func (r *ConmonOCIRuntime) Path() string

Path returns the path of the OCI runtime being wrapped by Conmon.

func (*ConmonOCIRuntime) PauseContainer added in v1.6.2 

func (r *ConmonOCIRuntime) PauseContainer(ctr *Container) error

PauseContainer pauses the given container.

func (*ConmonOCIRuntime) RuntimeInfo added in v1.6.2 

func (r *ConmonOCIRuntime) RuntimeInfo() (*define.ConmonInfo, *define.OCIRuntimeInfo, error)

RuntimeInfo provides information on the runtime.

func (*ConmonOCIRuntime) StartContainer added in v1.6.2 

func (r *ConmonOCIRuntime) StartContainer(ctr *Container) error

StartContainer starts the given container. Sets time the container was started, but does not save it.

func (*ConmonOCIRuntime) StopContainer added in v1.6.2 

func (r *ConmonOCIRuntime) StopContainer(ctr *Container, timeout uint, all bool) error

StopContainer stops a container, first using its given stop signal (or SIGTERM if no signal was specified), then using SIGKILL. Timeout is given in seconds. If timeout is 0, the container will be immediately kill with SIGKILL. Does not set finished time for container, assumes you will run updateStatus after to pull the exit code.

func (*ConmonOCIRuntime) SupportsCheckpoint added in v1.6.2 

func (r *ConmonOCIRuntime) SupportsCheckpoint() bool

SupportsCheckpoint checks if the OCI runtime supports checkpointing containers.

func (*ConmonOCIRuntime) SupportsJSONErrors added in v1.6.2 

func (r *ConmonOCIRuntime) SupportsJSONErrors() bool

SupportsJSONErrors checks if the OCI runtime supports JSON-formatted error messages.

func (*ConmonOCIRuntime) SupportsNoCgroups added in v1.6.2 

func (r *ConmonOCIRuntime) SupportsNoCgroups() bool

SupportsNoCgroups checks if the OCI runtime supports running containers without cgroups (the --cgroup-manager=disabled flag).

func (*ConmonOCIRuntime) UnpauseContainer added in v1.6.2 

func (r *ConmonOCIRuntime) UnpauseContainer(ctr *Container) error

UnpauseContainer unpauses the given container.

func (*ConmonOCIRuntime) UpdateContainerStatus added in v1.6.2 

func (r *ConmonOCIRuntime) UpdateContainerStatus(ctr *Container) error

UpdateContainerStatus retrieves the current status of the container from the runtime. It updates the container's state but does not save it. If useRuntime is false, we will not directly hit runc to see the container's status, but will instead only check for the existence of the conmon exit file and update state to stopped if it exists.

type Container 

type Container struct {
	// contains filtered or unexported fields
}

Container is a single OCI container. All operations on a Container that access state must begin with a call to syncContainer(). There is no guarantee that state exists in a readable state before syncContainer() is run, and even if it does, its contents will be out of date and must be refreshed from the database. Generally, this requirement applies only to top-level functions; helpers can assume that their callers handled this requirement. Generally speaking, if a function takes the container lock and accesses any part of state, it should syncContainer() immediately after locking.

func (*Container) AddArtifact 

func (c *Container) AddArtifact(name string, data []byte) error

AddArtifact creates and writes to an artifact file for the container

func (*Container) Attach 

func (c *Container) Attach(streams *define.AttachStreams, keys string, resize <-chan remotecommand.TerminalSize) error

Attach attaches to a container. This function returns when the attach finishes. It does not hold the lock for the duration of its runtime, only using it at the beginning to verify state.

func (*Container) AttachResize added in v1.8.0 

func (c *Container) AttachResize(newSize remotecommand.TerminalSize) error

AttachResize resizes the container's terminal, which is displayed by Attach and HTTPAttach.

func (*Container) AttachSocketPath added in v0.5.4 

func (c *Container) AttachSocketPath() (string, error)

AttachSocketPath retrieves the path of the container's attach socket

func (*Container) AutoRemove added in v1.6.0 

func (c *Container) AutoRemove() bool

AutoRemove indicates whether the container will be removed after it is executed

func (*Container) Batch 

func (c *Container) Batch(batchFunc func(*Container) error) error

Batch starts a batch operation on the given container All commands in the passed function will execute under the same lock and without syncronyzing state after each operation This will result in substantial performance benefits when running numerous commands on the same container Note that the container passed into the Batch function cannot be removed during batched operations. runtime.RemoveContainer can only be called outside of Batch Any error returned by the given batch function will be returned unmodified by Batch As Batch normally disables updating the current state of the container, the Sync() function is provided to enable container state to be updated and checked within Batch.

func (*Container) BindMounts added in v0.3.2 

func (c *Container) BindMounts() (map[string]string, error)

BindMounts retrieves bind mounts that were created by libpod and will be added to the container All these mounts except /dev/shm are ignored if a mount in the given spec has the same destination These mounts include /etc/resolv.conf, /etc/hosts, and /etc/hostname The return is formatted as a map from destination (mountpoint in the container) to source (path of the file that will be mounted into the container) If the container has not been started yet, an empty map will be returned, as the files in question are only created when the container is started.

func (*Container) CGroupPath 

func (c *Container) CGroupPath() (string, error)

CGroupPath returns a cgroups "path" for a given container.

func (*Container) CgroupParent added in v0.2.2 

func (c *Container) CgroupParent() string

CgroupParent gets the container's CGroup parent

func (*Container) Checkpoint added in v0.10.1 

func (c *Container) Checkpoint(ctx context.Context, options ContainerCheckpointOptions) error

Checkpoint checkpoints a container

func (*Container) CheckpointPath added in v0.10.1 

func (c *Container) CheckpointPath() string

CheckpointPath returns the path to the directory containing the checkpoint

func (*Container) Cleanup 

func (c *Container) Cleanup(ctx context.Context) error

Cleanup unmounts all mount points in container and cleans up container storage It also cleans up the network stack

func (*Container) Command added in v0.5.1 

func (c *Container) Command() []string

Command is the container's command This is not added to the spec, but is instead used during image commit

func (*Container) Commit 

func (c *Container) Commit(ctx context.Context, destImage string, options ContainerCommitOptions) (*image.Image, error)

Commit commits the changes between a container and its image, creating a new image

func (*Container) Config 

func (c *Container) Config() *ContainerConfig

Config returns the configuration used to create the container

func (*Container) ConmonPID added in v1.5.0 

func (c *Container) ConmonPID() (int, error)

ConmonPID Returns the PID of the container's conmon process. If the container is not running, a PID of 0 will be returned. No error will occur.

func (*Container) ContainerState added in v1.1.0 

func (c *Container) ContainerState() (*ContainerState, error)

ContainerState returns containerstate struct

func (*Container) ControlSocketPath added in v0.5.4 

func (c *Container) ControlSocketPath() string

ControlSocketPath returns the path to the containers control socket for things like tty resizing

func (*Container) CreatedTime added in v0.2.2 

func (c *Container) CreatedTime() time.Time

CreatedTime gets the time when the container was created

func (*Container) DNSOption added in v0.2.2 

func (c *Container) DNSOption() []string

DNSOption returns the DNS options that will be used in the container's resolv.conf If empty, options from the host's resolv.conf will be used instead

func (*Container) DNSSearch added in v0.2.2 

func (c *Container) DNSSearch() []string

DNSSearch returns the DNS search domains that will be used in the container's resolv.conf If empty, DNS Search domains from the host's resolv.conf will be used instead

func (*Container) DNSServers added in v0.2.2 

func (c *Container) DNSServers() []net.IP

DNSServers returns DNS servers that will be used in the container's resolv.conf If empty, DNS server from the host's resolv.conf will be used instead

func (*Container) Dependencies 

func (c *Container) Dependencies() []string

Dependencies gets the containers this container depends upon

func (*Container) Entrypoint added in v0.5.1 

func (c *Container) Entrypoint() []string

Entrypoint is the container's entrypoint. This is not added to the spec, but is instead used during image commit.

func (*Container) Exec 

func (c *Container) Exec(config *ExecConfig, streams *define.AttachStreams, resize <-chan remotecommand.TerminalSize) (int, error)

Exec emulates the old Libpod exec API, providing a single call to create, run, and remove an exec session. Returns exit code and error. Exit code is not guaranteed to be set sanely if error is not nil.

func (*Container) ExecCleanup added in v1.9.0 

func (c *Container) ExecCleanup(sessionID string) error

ExecCleanup cleans up an exec session in the container, removing temporary files associated with it.

func (*Container) ExecCreate added in v1.9.0 

func (c *Container) ExecCreate(config *ExecConfig) (string, error)

ExecCreate creates a new exec session for the container. The session is not started. The ID of the new exec session will be returned.

func (*Container) ExecHTTPStartAndAttach added in v1.9.0 

func (c *Container) ExecHTTPStartAndAttach(sessionID string) error

ExecHTTPStartAndAttach starts and performs an HTTP attach to an exec session.

func (*Container) ExecRemove added in v1.9.0 

func (c *Container) ExecRemove(sessionID string, force bool) error

ExecRemove removes an exec session in the container. If force is given, the session will be stopped first if it is running.

func (*Container) ExecResize added in v1.9.0 

func (c *Container) ExecResize(sessionID string, newSize remotecommand.TerminalSize) error

ExecResize resizes the TTY of the given exec session. Only available if the exec session created a TTY.

func (*Container) ExecSession added in v0.3.1 

func (c *Container) ExecSession(id string) (*ExecSession, error)

ExecSession retrieves detailed information on a single active exec session in a container

func (*Container) ExecSessions added in v0.3.1 

func (c *Container) ExecSessions() ([]string, error)

ExecSessions retrieves active exec sessions running in the container

func (*Container) ExecStart added in v1.9.0 

func (c *Container) ExecStart(sessionID string) error

ExecStart starts an exec session in the container, but does not attach to it. Returns immediately upon starting the exec session.

func (*Container) ExecStartAndAttach added in v1.9.0 

func (c *Container) ExecStartAndAttach(sessionID string, streams *define.AttachStreams) error

ExecStartAndAttach starts and attaches to an exec session in a container. TODO: Should we include detach keys in the signature to allow override? TODO: How do we handle AttachStdin/AttachStdout/AttachStderr?

func (*Container) ExecStop added in v1.9.0 

func (c *Container) ExecStop(sessionID string, timeout *uint) error

ExecStop stops an exec session in the container. If a timeout is provided, it will be used; otherwise, the timeout will default to the stop timeout of the container. Cleanup will be invoked automatically once the session is stopped.

func (*Container) ExitCode 

func (c *Container) ExitCode() (int32, bool, error)

ExitCode returns the exit code of the container as an int32, and whether the container has exited. If the container has not exited, exit code will always be 0. If the container restarts, the exit code is reset to 0.

func (*Container) Export 

func (c *Container) Export(path string) error

Export exports a container's root filesystem as a tar archive The archive will be saved as a file at the given path

func (*Container) FinishedTime 

func (c *Container) FinishedTime() (time.Time, error)

FinishedTime is the time the container was stopped

func (*Container) GenerateForKube added in v1.0.0 

func (c *Container) GenerateForKube() (*v1.Pod, error)

GenerateForKube takes a slice of libpod containers and generates one v1.Pod description that includes just a single container.

func (*Container) GetArtifact 

func (c *Container) GetArtifact(name string) ([]byte, error)

GetArtifact reads the specified artifact file from the container

func (*Container) GetContainerPidInformation 

func (c *Container) GetContainerPidInformation(descriptors []string) ([]string, error)

GetContainerPidInformation returns process-related data of all processes in the container. The output data can be controlled via the `descriptors` argument which expects format descriptors and supports all AIXformat descriptors of ps (1) plus some additional ones to for instance inspect the set of effective capabilities. Each element in the returned string slice is a tab-separated string.

For more details, please refer to github.com/containers/psgo.

func (*Container) GetContainerStats 

func (c *Container) GetContainerStats(previousStats *ContainerStats) (*ContainerStats, error)

GetContainerStats gets the running stats for a given container

func (*Container) GetHealthCheckLog added in v1.2.0 

func (c *Container) GetHealthCheckLog() (define.HealthCheckResults, error)

GetHealthCheckLog returns HealthCheck results by reading the container's health check log file. If the health check log file does not exist, then an empty healthcheck struct is returned

func (*Container) HTTPAttach added in v1.8.0 

func (c *Container) HTTPAttach(httpCon net.Conn, httpBuf *bufio.ReadWriter, streams *HTTPAttachStreams, detachKeys *string, cancel <-chan bool, streamAttach, streamLogs bool) (deferredErr error)

HTTPAttach forwards an attach session over a hijacked HTTP session. HTTPAttach will consume and close the included httpCon, which is expected to be sourced from a hijacked HTTP connection. The cancel channel is optional, and can be used to asynchronously cancel the attach session. The streams variable is only supported if the container was not a terminal, and allows specifying which of the container's standard streams will be forwarded to the client. This function returns when the attach finishes. It does not hold the lock for the duration of its runtime, only using it at the beginning to verify state. The streamLogs parameter indicates that all the container's logs until present will be streamed at the beginning of the attach. The streamAttach parameter indicates that the attach itself will be streamed over the socket; if this is not set, but streamLogs is, only the logs will be sent. At least one of streamAttach and streamLogs must be set.

func (*Container) HasHealthCheck added in v1.2.0 

func (c *Container) HasHealthCheck() bool

HasHealthCheck returns bool as to whether there is a health check defined for the container

func (*Container) HealthCheckConfig added in v1.2.0 

func (c *Container) HealthCheckConfig() *manifest.Schema2HealthConfig

HealthCheckConfig returns the command and timing attributes of the health check

func (*Container) HealthCheckStatus added in v1.2.0 

func (c *Container) HealthCheckStatus() (string, error)

HealthCheckStatus returns the current state of a container with a healthcheck

func (*Container) Hostname added in v0.2.2 

func (c *Container) Hostname() string

Hostname gets the container's hostname

func (*Container) HostsAdd added in v0.2.2 

func (c *Container) HostsAdd() []string

HostsAdd returns hosts that will be added to the container's hosts file The host system's hosts file is used as a base, and these are appended to it

func (*Container) ID 

func (c *Container) ID() string

ID returns the container's ID

func (*Container) IDMappings added in v0.5.2 

func (c *Container) IDMappings() (storage.IDMappingOptions, error)

IDMappings returns the UID/GID mapping used for the container

func (*Container) IPs added in v0.3.1 

func (c *Container) IPs() ([]net.IPNet, error)

IPs retrieves a container's IP address(es) This will only be populated if the container is configured to created a new network namespace, and that namespace is presently active

func (*Container) Image added in v0.2.2 

func (c *Container) Image() (string, string)

Image returns the ID and name of the image used as the container's rootfs.

func (*Container) Init 

func (c *Container) Init(ctx context.Context) (err error)

Init creates a container in the OCI runtime

func (*Container) Inspect 

func (c *Container) Inspect(size bool) (*define.InspectContainerData, error)

Inspect a container for low-level information

func (*Container) IsInfra added in v0.8.4 

func (c *Container) IsInfra() bool

IsInfra returns whether the container is an infra container

func (*Container) IsReadOnly added in v0.9.3 

func (c *Container) IsReadOnly() bool

IsReadOnly returns whether the container is running in read only mode

func (*Container) Kill 

func (c *Container) Kill(signal uint) error

Kill sends a signal to a container

func (*Container) Labels 

func (c *Container) Labels() map[string]string

Labels returns the container's labels

func (*Container) LogDriver added in v1.4.0 

func (c *Container) LogDriver() string

LogDriver returns the log driver for this container

func (*Container) LogPath 

func (c *Container) LogPath() string

LogPath returns the path to the container's log file This file will only be present after Init() is called to create the container in the runtime

func (*Container) LogTag added in v1.8.0 

func (c *Container) LogTag() string

LogTag returns the tag to the container's log file

func (*Container) Mount 

func (c *Container) Mount() (string, error)

Mount mounts a container's filesystem on the host The path where the container has been mounted is returned

func (*Container) MountLabel added in v0.2.2 

func (c *Container) MountLabel() string

MountLabel returns the SELinux mount label of the container

func (*Container) Mounted 

func (c *Container) Mounted() (bool, string, error)

Mounted returns whether the container is mounted and the path it is mounted at (if it is mounted). If the container is not mounted, no error is returned, and the mountpoint will be set to "".

func (*Container) Name 

func (c *Container) Name() string

Name returns the container's name

func (*Container) NamedVolumes added in v1.3.0 

func (c *Container) NamedVolumes() []*ContainerNamedVolume

NamedVolumes returns the container's named volumes. The name of each is guaranteed to point to a valid libpod Volume present in the state.

func (*Container) Namespace added in v0.7.4 

func (c *Container) Namespace() string

Namespace returns the libpod namespace the container is in. Namespaces are used to logically separate containers and pods in the state.

func (*Container) NamespacePath 

func (c *Container) NamespacePath(linuxNS LinuxNS) (string, error)

NamespacePath returns the path of one of the container's namespaces If the container is not running, an error will be returned

func (*Container) NetworkDisabled added in v0.12.1 

func (c *Container) NetworkDisabled() (bool, error)

NetworkDisabled returns whether the container is running with a disabled network

func (*Container) NewNetNS added in v0.2.2 

func (c *Container) NewNetNS() bool

NewNetNS returns whether the container will create a new network namespace

func (*Container) OOMKilled added in v0.2.2 

func (c *Container) OOMKilled() (bool, error)

OOMKilled returns whether the container was killed by an OOM condition

func (*Container) PID 

func (c *Container) PID() (int, error)

PID returns the PID of the container. If the container is not running, a pid of 0 will be returned. No error will occur.

func (*Container) Pause 

func (c *Container) Pause() error

Pause pauses a container

func (*Container) PodID 

func (c *Container) PodID() string

PodID returns the full ID of the pod the container belongs to, or "" if it does not belong to a pod

func (*Container) PortMappings added in v0.2.2 

func (c *Container) PortMappings() ([]ocicni.PortMapping, error)

PortMappings returns the ports that will be mapped into a container if a new network namespace is created If NewNetNS() is false, this value is unused

func (*Container) Privileged added in v0.2.2 

func (c *Container) Privileged() bool

Privileged returns whether the container is privileged

func (*Container) ProcessLabel 

func (c *Container) ProcessLabel() string

ProcessLabel returns the selinux ProcessLabel of the container

func (*Container) RWSize 

func (c *Container) RWSize() (int64, error)

RWSize returns the rw size of the container

func (*Container) RawImageName added in v1.8.2 

func (c *Container) RawImageName() string

RawImageName returns the unprocessed and not-normalized user-specified image name.

func (*Container) ReadLog added in v1.2.0 

func (c *Container) ReadLog(options *logs.LogOptions, logChannel chan *logs.LogLine) error

ReadLog reads a containers log based on the input options and returns loglines over a channel

func (*Container) Refresh added in v0.6.4 

func (c *Container) Refresh(ctx context.Context) error

Refresh is DEPRECATED and REMOVED.

func (*Container) RemoveArtifact 

func (c *Container) RemoveArtifact(name string) error

RemoveArtifact deletes the specified artifacts file

func (*Container) RestartPolicy added in v1.3.0 

func (c *Container) RestartPolicy() string

RestartPolicy returns the container's restart policy.

func (*Container) RestartRetries added in v1.3.0 

func (c *Container) RestartRetries() uint

RestartRetries returns the number of retries that will be attempted when using the "on-failure" restart policy

func (*Container) RestartWithTimeout added in v0.5.1 

func (c *Container) RestartWithTimeout(ctx context.Context, timeout uint) (err error)

RestartWithTimeout restarts a running container and takes a given timeout in uint

func (*Container) Restore added in v0.10.1 

func (c *Container) Restore(ctx context.Context, options ContainerCheckpointOptions) (err error)

Restore restores a container

func (*Container) RootFsSize 

func (c *Container) RootFsSize() (int64, error)

RootFsSize returns the root FS size of the container

func (*Container) RootGID added in v0.5.2 

func (c *Container) RootGID() int

RootGID returns the root user mapping from container

func (*Container) RootUID added in v0.5.2 

func (c *Container) RootUID() int

RootUID returns the root user mapping from container

func (*Container) Routes added in v0.3.1 

func (c *Container) Routes() ([]types.Route, error)

Routes retrieves a container's routes This will only be populated if the container is configured to created a new network namespace, and that namespace is presently active

func (*Container) RuntimeName 

func (c *Container) RuntimeName() string

RuntimeName returns the name of the runtime

func (*Container) ShmDir 

func (c *Container) ShmDir() string

ShmDir returns the sources path to be mounted on /dev/shm in container

func (*Container) ShmSize added in v0.2.2 

func (c *Container) ShmSize() int64

ShmSize returns the size of SHM device to be mounted into the container

func (*Container) Spec 

func (c *Container) Spec() *spec.Spec

Spec returns the container's OCI runtime spec The spec returned is the one used to create the container. The running spec may differ slightly as mounts are added based on the image

func (*Container) Start 

func (c *Container) Start(ctx context.Context, recursive bool) (err error)

Start starts a container. Start can start configured, created or stopped containers. For configured containers, the container will be initialized first, then started. Stopped containers will be deleted and re-created in runc, undergoing a fresh Init(). If recursive is set, Start will also start all containers this container depends on.

func (*Container) StartAndAttach added in v0.3.3 

func (c *Container) StartAndAttach(ctx context.Context, streams *define.AttachStreams, keys string, resize <-chan remotecommand.TerminalSize, recursive bool) (attachResChan <-chan error, err error)

StartAndAttach starts a container and attaches to it. StartAndAttach can start configured, created or stopped containers. For configured containers, the container will be initialized first, then started. Stopped containers will be deleted and re-created in runc, undergoing a fresh Init(). If successful, an error channel will be returned containing the result of the attach call. The channel will be closed automatically after the result of attach has been sent. If recursive is set, StartAndAttach will also start all containers this container depends on.

func (*Container) StartedTime 

func (c *Container) StartedTime() (time.Time, error)

StartedTime is the time the container was started

func (*Container) State 

func (c *Container) State() (define.ContainerStatus, error)

State returns the current state of the container

func (*Container) StaticDir added in v0.2.2 

func (c *Container) StaticDir() string

StaticDir returns the directory used to store persistent container files

func (*Container) Stdin added in v0.2.2 

func (c *Container) Stdin() bool

Stdin returns whether STDIN on the container will be kept open

func (*Container) Stop 

func (c *Container) Stop() error

Stop uses the container's stop signal (or SIGTERM if no signal was specified) to stop the container, and if it has not stopped after container's stop timeout, SIGKILL is used to attempt to forcibly stop the container Default stop timeout is 10 seconds, but can be overridden when the container is created

func (*Container) StopSignal added in v0.2.2 

func (c *Container) StopSignal() uint

StopSignal is the signal that will be used to stop the container If it fails to stop the container, SIGKILL will be used after a timeout If StopSignal is 0, the default signal of SIGTERM will be used

func (*Container) StopTimeout 

func (c *Container) StopTimeout() uint

StopTimeout returns the container's stop timeout If the container's default stop signal fails to kill the container, SIGKILL will be used after this timeout

func (*Container) StopWithTimeout 

func (c *Container) StopWithTimeout(timeout uint) error

StopWithTimeout is a version of Stop that allows a timeout to be specified manually. If timeout is 0, SIGKILL will be used immediately to kill the container.

func (*Container) StoppedByUser added in v1.3.0 

func (c *Container) StoppedByUser() (bool, error)

StoppedByUser returns whether the container was last stopped by an explicit call to the Stop() API, or whether it exited naturally.

func (*Container) Sync 

func (c *Container) Sync() error

Sync updates the status of a container by querying the OCI runtime. If the container has not been created inside the OCI runtime, nothing will be done. Most of the time, Podman does not explicitly query the OCI runtime for container status, and instead relies upon exit files created by conmon. This can cause a disconnect between running state and what Podman sees in cases where Conmon was killed unexpected, or runc was upgraded. Running a manual Sync() ensures that container state will be correct in such situations.

func (*Container) Top added in v1.3.0 

func (c *Container) Top(descriptors []string) ([]string, error)

Top gathers statistics about the running processes in a container. It returns a []string for output

func (*Container) Unmount 

func (c *Container) Unmount(force bool) error

Unmount unmounts a container's filesystem on the host

func (*Container) Unpause 

func (c *Container) Unpause() error

Unpause unpauses a container

func (*Container) User added in v0.2.2 

func (c *Container) User() string

User returns the user who the container is run as

func (*Container) UserVolumes added in v0.5.1 

func (c *Container) UserVolumes() []string

UserVolumes returns user-added volume mounts in the container. These are not added to the spec, but are used during image commit and to trigger some OCI hooks.

func (*Container) Wait 

func (c *Container) Wait() (int32, error)

Wait blocks until the container exits and returns its exit code.

func (*Container) WaitForConditionWithInterval added in v1.8.1 

func (c *Container) WaitForConditionWithInterval(waitTimeout time.Duration, condition define.ContainerStatus) (int32, error)

func (*Container) WaitWithInterval added in v0.9.3 

func (c *Container) WaitWithInterval(waitTimeout time.Duration) (int32, error)

WaitWithInterval blocks until the container to exit and returns its exit code. The argument is the interval at which checks the container's status.

func (*Container) WorkingDir added in v0.11.1 

func (c *Container) WorkingDir() string

WorkingDir returns the containers working dir

type ContainerCheckpointOptions added in v0.12.1 

type ContainerCheckpointOptions struct {
	// Keep tells the API to not delete checkpoint artifacts
	Keep bool
	// KeepRunning tells the API to keep the container running
	// after writing the checkpoint to disk
	KeepRunning bool
	// TCPEstablished tells the API to checkpoint a container
	// even if it contains established TCP connections
	TCPEstablished bool
	// TargetFile tells the API to read (or write) the checkpoint image
	// from (or to) the filename set in TargetFile
	TargetFile string
	// Name tells the API that during restore from an exported
	// checkpoint archive a new name should be used for the
	// restored container
	Name string
	// IgnoreRootfs tells the API to not export changes to
	// the container's root file-system (or to not import)
	IgnoreRootfs bool
	// IgnoreStaticIP tells the API to ignore the IP set
	// during 'podman run' with '--ip'. This is especially
	// important to be able to restore a container multiple
	// times with '--import --name'.
	IgnoreStaticIP bool
	// IgnoreStaticMAC tells the API to ignore the MAC set
	// during 'podman run' with '--mac-address'. This is especially
	// important to be able to restore a container multiple
	// times with '--import --name'.
	IgnoreStaticMAC bool
}

ContainerCheckpointOptions is a struct used to pass the parameters for checkpointing (and restoring) to the corresponding functions

type ContainerCommitOptions added in v0.4.2 

type ContainerCommitOptions struct {
	buildah.CommitOptions
	Pause          bool
	IncludeVolumes bool
	Author         string
	Message        string
	Changes        []string
}

ContainerCommitOptions is a struct used to commit a container to an image It uses buildah's CommitOptions as a base. Long-term we might wish to add these to the buildah struct once buildah is more integrated with libpod

type ContainerConfig 

type ContainerConfig struct {
	Spec *spec.Spec `json:"spec"`
	ID   string     `json:"id"`
	Name string     `json:"name"`
	// Full ID of the pood the container belongs to
	Pod string `json:"pod,omitempty"`
	// Namespace the container is in
	Namespace string `json:"namespace,omitempty"`
	// ID of this container's lock
	LockID uint32 `json:"lockID"`

	// CreateCommand is the full command plus arguments of the process the
	// container has been created with.
	CreateCommand []string `json:"CreateCommand,omitempty"`

	// RawImageName is the raw and unprocessed name of the image when creating
	// the container (as specified by the user).  May or may not be set.  One
	// use case to store this data are auto-updates where we need the _exact_
	// name and not some normalized instance of it.
	RawImageName string `json:"RawImageName,omitempty"`

	// UID/GID mappings used by the storage
	IDMappings storage.IDMappingOptions `json:"idMappingsOptions,omitempty"`

	// Information on the image used for the root filesystem
	RootfsImageID   string `json:"rootfsImageID,omitempty"`
	RootfsImageName string `json:"rootfsImageName,omitempty"`
	// Rootfs to use for the container, this conflicts with RootfsImageID
	Rootfs string `json:"rootfs,omitempty"`
	// Src path to be mounted on /dev/shm in container.
	ShmDir string `json:"ShmDir,omitempty"`
	// Size of the container's SHM.
	ShmSize int64 `json:"shmSize"`
	// Static directory for container content that will persist across
	// reboot.
	StaticDir string `json:"staticDir"`
	// Mounts list contains all additional mounts into the container rootfs.
	// These include the SHM mount.
	// These must be unmounted before the container's rootfs is unmounted.
	Mounts []string `json:"mounts,omitempty"`
	// NamedVolumes lists the named volumes to mount into the container.
	NamedVolumes []*ContainerNamedVolume `json:"namedVolumes,omitempty"`

	// Whether the container is privileged
	Privileged bool `json:"privileged"`
	// SELinux process label for container
	ProcessLabel string `json:"ProcessLabel,omitempty"`
	// SELinux mount label for root filesystem
	MountLabel string `json:"MountLabel,omitempty"`
	// LabelOpts are options passed in by the user to setup SELinux labels
	LabelOpts []string `json:"labelopts,omitempty"`
	// User and group to use in the container
	// Can be specified by name or UID/GID
	User string `json:"user,omitempty"`
	// Additional groups to add
	Groups []string `json:"groups,omitempty"`

	// Namespace Config
	// IDs of container to share namespaces with
	// NetNsCtr conflicts with the CreateNetNS bool
	// These containers are considered dependencies of the given container
	// They must be started before the given container is started
	IPCNsCtr    string `json:"ipcNsCtr,omitempty"`
	MountNsCtr  string `json:"mountNsCtr,omitempty"`
	NetNsCtr    string `json:"netNsCtr,omitempty"`
	PIDNsCtr    string `json:"pidNsCtr,omitempty"`
	UserNsCtr   string `json:"userNsCtr,omitempty"`
	UTSNsCtr    string `json:"utsNsCtr,omitempty"`
	CgroupNsCtr string `json:"cgroupNsCtr,omitempty"`

	// IDs of dependency containers.
	// These containers must be started before this container is started.
	Dependencies []string

	// CreateNetNS indicates that libpod should create and configure a new
	// network namespace for the container.
	// This cannot be set if NetNsCtr is also set.
	CreateNetNS bool `json:"createNetNS"`
	// StaticIP is a static IP to request for the container.
	// This cannot be set unless CreateNetNS is set.
	// If not set, the container will be dynamically assigned an IP by CNI.
	StaticIP net.IP `json:"staticIP"`
	// StaticMAC is a static MAC to request for the container.
	// This cannot be set unless CreateNetNS is set.
	// If not set, the container will be dynamically assigned a MAC by CNI.
	StaticMAC net.HardwareAddr `json:"staticMAC"`
	// PortMappings are the ports forwarded to the container's network
	// namespace
	// These are not used unless CreateNetNS is true
	PortMappings []ocicni.PortMapping `json:"portMappings,omitempty"`
	// UseImageResolvConf indicates that resolv.conf should not be
	// bind-mounted inside the container.
	// Conflicts with DNSServer, DNSSearch, DNSOption.
	UseImageResolvConf bool
	// DNS servers to use in container resolv.conf
	// Will override servers in host resolv if set
	DNSServer []net.IP `json:"dnsServer,omitempty"`
	// DNS Search domains to use in container resolv.conf
	// Will override search domains in host resolv if set
	DNSSearch []string `json:"dnsSearch,omitempty"`
	// DNS options to be set in container resolv.conf
	// With override options in host resolv if set
	DNSOption []string `json:"dnsOption,omitempty"`
	// UseImageHosts indicates that /etc/hosts should not be
	// bind-mounted inside the container.
	// Conflicts with HostAdd.
	UseImageHosts bool
	// Hosts to add in container
	// Will be appended to host's host file
	HostAdd []string `json:"hostsAdd,omitempty"`
	// Network names (CNI) to add container to. Empty to use default network.
	Networks []string `json:"networks,omitempty"`
	// Network mode specified for the default network.
	NetMode namespaces.NetworkMode `json:"networkMode,omitempty"`

	// UserVolumes contains user-added volume mounts in the container.
	// These will not be added to the container's spec, as it is assumed
	// they are already present in the spec given to Libpod. Instead, it is
	// used when committing containers to generate the VOLUMES field of the
	// image that is created, and for triggering some OCI hooks which do not
	// fire unless user-added volume mounts are present.
	UserVolumes []string `json:"userVolumes,omitempty"`
	// Entrypoint is the container's entrypoint.
	// It is not used in spec generation, but will be used when the
	// container is committed to populate the entrypoint of the new image.
	Entrypoint []string `json:"entrypoint,omitempty"`
	// Command is the container's command.
	// It is not used in spec generation, but will be used when the
	// container is committed to populate the command of the new image.
	Command []string `json:"command,omitempty"`

	// Whether to keep container STDIN open
	Stdin bool `json:"stdin,omitempty"`
	// Labels is a set of key-value pairs providing additional information
	// about a container
	Labels map[string]string `json:"labels,omitempty"`
	// StopSignal is the signal that will be used to stop the container
	StopSignal uint `json:"stopSignal,omitempty"`
	// StopTimeout is the signal that will be used to stop the container
	StopTimeout uint `json:"stopTimeout,omitempty"`
	// Time container was created
	CreatedTime time.Time `json:"createdTime"`
	// NoCgroups indicates that the container will not create CGroups. It is
	// incompatible with CgroupParent.  Deprecated in favor of CgroupsMode.
	NoCgroups bool `json:"noCgroups,omitempty"`
	// CgroupsMode indicates how the container will create cgroups
	// (disabled, no-conmon, enabled).  It supersedes NoCgroups.
	CgroupsMode string `json:"cgroupsMode,omitempty"`
	// Cgroup parent of the container
	CgroupParent string `json:"cgroupParent"`
	// LogPath log location
	LogPath string `json:"logPath"`
	// LogTag is the tag used for logging
	LogTag string `json:"logTag"`
	// LogDriver driver for logs
	LogDriver string `json:"logDriver"`
	// File containing the conmon PID
	ConmonPidFile string `json:"conmonPidFile,omitempty"`
	// RestartPolicy indicates what action the container will take upon
	// exiting naturally.
	// Allowed options are "no" (take no action), "on-failure" (restart on
	// non-zero exit code, up an a maximum of RestartRetries times),
	// and "always" (always restart the container on any exit code).
	// The empty string is treated as the default ("no")
	RestartPolicy string `json:"restart_policy,omitempty"`
	// RestartRetries indicates the number of attempts that will be made to
	// restart the container. Used only if RestartPolicy is set to
	// "on-failure".
	RestartRetries uint `json:"restart_retries,omitempty"`

	// PostConfigureNetNS needed when a user namespace is created by an OCI runtime
	// if the network namespace is created before the user namespace it will be
	// owned by the wrong user namespace.
	PostConfigureNetNS bool `json:"postConfigureNetNS"`

	// OCIRuntime used to create the container
	OCIRuntime string `json:"runtime,omitempty"`

	// ExitCommand is the container's exit command.
	// This Command will be executed when the container exits
	ExitCommand []string `json:"exitCommand,omitempty"`
	// IsInfra is a bool indicating whether this container is an infra container used for
	// sharing kernel namespaces in a pod
	IsInfra bool `json:"pause"`

	// Systemd tells libpod to setup the container in systemd mode
	Systemd bool `json:"systemd"`

	// HealthCheckConfig has the health check command and related timings
	HealthCheckConfig *manifest.Schema2HealthConfig `json:"healthcheck"`
}

ContainerConfig contains all information that was used to create the container. It may not be changed once created. It is stored, read-only, on disk

type ContainerFilter 

type ContainerFilter func(*Container) bool

ContainerFilter is a function to determine whether a container is included in command output. Containers to be outputted are tested using the function. A true return will include the container, a false return will exclude it.

type ContainerGraph added in v1.6.0 

type ContainerGraph struct {
	// contains filtered or unexported fields
}

ContainerGraph is a dependency graph based on a set of containers.

func BuildContainerGraph added in v1.6.0 

func BuildContainerGraph(ctrs []*Container) (*ContainerGraph, error)

BuildContainerGraph builds a dependency graph based on the container slice.

func (*ContainerGraph) DependencyMap added in v1.6.0 

func (cg *ContainerGraph) DependencyMap() (dependencies map[*Container][]*Container)

DependencyMap returns the dependency graph as map with the key being a container and the value being the containers the key depends on.

type ContainerInfo 

type ContainerInfo struct {
	Dir          string
	RunDir       string
	Config       *v1.Image
	ProcessLabel string
	MountLabel   string
	UIDMap       []idtools.IDMap
	GIDMap       []idtools.IDMap
}

ContainerInfo wraps a subset of information about a container: the locations of its nonvolatile and volatile per-container directories, along with a copy of the configuration blob from the image that was used to create the container, if the image had a configuration. It also returns the ProcessLabel and MountLabel selected for the container

type ContainerNamedVolume added in v1.3.0 

type ContainerNamedVolume struct {
	// Name is the name of the volume to mount in.
	// Must resolve to a valid volume present in this Podman.
	Name string `json:"volumeName"`
	// Dest is the mount's destination
	Dest string `json:"dest"`
	// Options are fstab style mount options
	Options []string `json:"options,omitempty"`
}

ContainerNamedVolume is a named volume that will be mounted into the container. Each named volume is a libpod Volume present in the state.

type ContainerState added in v1.1.0 

type ContainerState struct {
	// The current state of the running container
	State define.ContainerStatus `json:"state"`
	// The path to the JSON OCI runtime spec for this container
	ConfigPath string `json:"configPath,omitempty"`
	// RunDir is a per-boot directory for container content
	RunDir string `json:"runDir,omitempty"`
	// Mounted indicates whether the container's storage has been mounted
	// for use
	Mounted bool `json:"mounted,omitempty"`
	// Mountpoint contains the path to the container's mounted storage as given
	// by containers/storage.
	Mountpoint string `json:"mountPoint,omitempty"`
	// StartedTime is the time the container was started
	StartedTime time.Time `json:"startedTime,omitempty"`
	// FinishedTime is the time the container finished executing
	FinishedTime time.Time `json:"finishedTime,omitempty"`
	// ExitCode is the exit code returned when the container stopped
	ExitCode int32 `json:"exitCode,omitempty"`
	// Exited is whether the container has exited
	Exited bool `json:"exited,omitempty"`
	// OOMKilled indicates that the container was killed as it ran out of
	// memory
	OOMKilled bool `json:"oomKilled,omitempty"`
	// PID is the PID of a running container
	PID int `json:"pid,omitempty"`
	// ConmonPID is the PID of the container's conmon
	ConmonPID int `json:"conmonPid,omitempty"`
	// ExecSessions contains all exec sessions that are associated with this
	// container.
	ExecSessions map[string]*ExecSession `json:"newExecSessions,omitempty"`
	// LegacyExecSessions are legacy exec sessions from older versions of
	// Podman.
	// These are DEPRECATED and will be removed in a future release.
	LegacyExecSessions map[string]*legacyExecSession `json:"execSessions,omitempty"`
	// NetworkStatus contains the configuration results for all networks
	// the pod is attached to. Only populated if we created a network
	// namespace for the container, and the network namespace is currently
	// active
	NetworkStatus []*cnitypes.Result `json:"networkResults,omitempty"`
	// BindMounts contains files that will be bind-mounted into the
	// container when it is mounted.
	// These include /etc/hosts and /etc/resolv.conf
	// This maps the path the file will be mounted to in the container to
	// the path of the file on disk outside the container
	BindMounts map[string]string `json:"bindMounts,omitempty"`
	// StoppedByUser indicates whether the container was stopped by an
	// explicit call to the Stop() API.
	StoppedByUser bool `json:"stoppedByUser,omitempty"`
	// RestartPolicyMatch indicates whether the conditions for restart
	// policy have been met.
	RestartPolicyMatch bool `json:"restartPolicyMatch,omitempty"`
	// RestartCount is how many times the container was restarted by its
	// restart policy. This is NOT incremented by normal container restarts
	// (only by restart policy).
	RestartCount uint `json:"restartCount,omitempty"`

	// ExtensionStageHooks holds hooks which will be executed by libpod
	// and not delegated to the OCI runtime.
	ExtensionStageHooks map[string][]spec.Hook `json:"extensionStageHooks,omitempty"`
	// contains filtered or unexported fields
}

ContainerState contains the current state of the container It is stored on disk in a tmpfs and recreated on reboot

type ContainerStats 

type ContainerStats struct {
	ContainerID   string
	Name          string
	PerCPU        []uint64
	CPU           float64
	CPUNano       uint64
	CPUSystemNano uint64
	SystemNano    uint64
	MemUsage      uint64
	MemLimit      uint64
	MemPerc       float64
	NetInput      uint64
	NetOutput     uint64
	BlockInput    uint64
	BlockOutput   uint64
	PIDs          uint64
}

ContainerStats contains the statistics information for a running container

type CtrCreateOption 

type CtrCreateOption func(*Container) error

A CtrCreateOption is a functional option which alters the Container created by NewContainer

func WithCgroupNSFrom 

func WithCgroupNSFrom(nsCtr *Container) CtrCreateOption

WithCgroupNSFrom indicates the the container should join the CGroup namespace of the given container. If the container has joined a pod, it can only join the namespaces of containers in the same pod.

func WithCgroupParent 

func WithCgroupParent(parent string) CtrCreateOption

WithCgroupParent sets the Cgroup Parent of the new container.

func WithCgroupsMode added in v1.8.0 

func WithCgroupsMode(mode string) CtrCreateOption

WithCgroupsMode disables the creation of CGroups for the conmon process.

func WithCommand added in v0.5.1 

func WithCommand(command []string) CtrCreateOption

WithCommand sets the command of the container. This is not used to change the container's spec, but will instead be used during commit to populate the command of the new image. If not explicitly set it will default to the image's command. A nil command is allowed, and will clear command on the created image.

func WithConmonPidFile added in v0.3.5 

func WithConmonPidFile(path string) CtrCreateOption

WithConmonPidFile specifies the path to the file that receives the pid of conmon.

func WithCreateCommand added in v1.7.0 

func WithCreateCommand() CtrCreateOption

WithCreateCommand adds the full command plus arguments of the current process to the container config.

func WithCtrNamespace added in v0.7.4 

func WithCtrNamespace(ns string) CtrCreateOption

WithCtrNamespace sets the namespace the container will be created in. Namespaces are used to create separate views of Podman's state - runtimes can join a specific namespace and see only containers and pods in that namespace. Empty string namespaces are allowed, and correspond to a lack of namespace.

func WithDNS 

func WithDNS(dnsServers []string) CtrCreateOption

WithDNS sets additional name servers for the container.

func WithDNSOption 

func WithDNSOption(dnsOptions []string) CtrCreateOption

WithDNSOption sets addition dns options for the container.

func WithDNSSearch 

func WithDNSSearch(searchDomains []string) CtrCreateOption

WithDNSSearch sets the additional search domains of a container.

func WithDependencyCtrs added in v0.4.1 

func WithDependencyCtrs(ctrs []*Container) CtrCreateOption

WithDependencyCtrs sets dependency containers of the given container. Dependency containers must be running before this container is started.

func WithEntrypoint added in v0.5.1 

func WithEntrypoint(entrypoint []string) CtrCreateOption

WithEntrypoint sets the entrypoint of the container. This is not used to change the container's spec, but will instead be used during commit to populate the entrypoint of the new image. If not explicitly set it will default to the image's entrypoint. A nil entrypoint is allowed, and will clear entrypoint on the created image.

func WithExitCommand added in v0.6.5 

func WithExitCommand(exitCommand []string) CtrCreateOption

WithExitCommand sets the ExitCommand for the container, appending on the ctr.ID() to the end

func WithGroups added in v0.4.2 

func WithGroups(groups []string) CtrCreateOption

WithGroups sets additional groups for the container, which are defined by the user.

func WithHealthCheck added in v1.2.0 

func WithHealthCheck(healthCheck *manifest.Schema2HealthConfig) CtrCreateOption

WithHealthCheck adds the healthcheck to the container config

func WithHosts 

func WithHosts(hosts []string) CtrCreateOption

WithHosts sets additional host:IP for the hosts file.

func WithIDMappings added in v0.5.2 

func WithIDMappings(idmappings storage.IDMappingOptions) CtrCreateOption

WithIDMappings sets the idmappsings for the container

func WithIPCNSFrom 

func WithIPCNSFrom(nsCtr *Container) CtrCreateOption

WithIPCNSFrom indicates the the container should join the IPC namespace of the given container. If the container has joined a pod, it can only join the namespaces of containers in the same pod.

func WithLabels 

func WithLabels(labels map[string]string) CtrCreateOption

WithLabels adds labels to the container.

func WithLogDriver added in v1.4.0 

func WithLogDriver(driver string) CtrCreateOption

WithLogDriver sets the log driver for the container

func WithLogPath 

func WithLogPath(path string) CtrCreateOption

WithLogPath sets the path to the log file.

func WithLogTag added in v1.8.0 

func WithLogTag(tag string) CtrCreateOption

WithLogTag sets the tag to the log file.

func WithMountNSFrom 

func WithMountNSFrom(nsCtr *Container) CtrCreateOption

WithMountNSFrom indicates the the container should join the mount namespace of the given container. If the container has joined a pod, it can only join the namespaces of containers in the same pod.

func WithName 

func WithName(name string) CtrCreateOption

WithName sets the container's name.

func WithNamedVolumes added in v1.3.0 

func WithNamedVolumes(volumes []*ContainerNamedVolume) CtrCreateOption

WithNamedVolumes adds the given named volumes to the container.

func WithNetNS 

func WithNetNS(portMappings []ocicni.PortMapping, postConfigureNetNS bool, netmode string, networks []string) CtrCreateOption

WithNetNS indicates that the container should be given a new network namespace with a minimal configuration. An optional array of port mappings can be provided. Conflicts with WithNetNSFrom().

func WithNetNSFrom 

func WithNetNSFrom(nsCtr *Container) CtrCreateOption

WithNetNSFrom indicates the the container should join the network namespace of the given container. If the container has joined a pod, it can only join the namespaces of containers in the same pod.

func WithPIDNSFrom 

func WithPIDNSFrom(nsCtr *Container) CtrCreateOption

WithPIDNSFrom indicates the the container should join the PID namespace of the given container. If the container has joined a pod, it can only join the namespaces of containers in the same pod.

func WithPrivileged 

func WithPrivileged(privileged bool) CtrCreateOption

WithPrivileged sets the privileged flag in the container runtime.

func WithRestartPolicy added in v1.3.0 

func WithRestartPolicy(policy string) CtrCreateOption

WithRestartPolicy sets the container's restart policy. Valid values are "no", "on-failure", and "always". The empty string is allowed, and will be equivalent to "no".

func WithRestartRetries added in v1.3.0 

func WithRestartRetries(tries uint) CtrCreateOption

WithRestartRetries sets the number of retries to use when restarting a container with the "on-failure" restart policy. 0 is an allowed value, and indicates infinite retries.

func WithRootFS added in v0.6.3 

func WithRootFS(rootfs string) CtrCreateOption

WithRootFS sets the rootfs for the container. This creates a container from a directory on disk and not an image.

func WithRootFSFromImage 

func WithRootFSFromImage(imageID, imageName, rawImageName string) CtrCreateOption

WithRootFSFromImage sets up a fresh root filesystem using the given image. If useImageConfig is specified, image volumes, environment variables, and other configuration from the image will be added to the config. TODO: Replace image name and ID with a libpod.Image struct when that is finished.

func WithSecLabels added in v0.9.3 

func WithSecLabels(labelOpts []string) CtrCreateOption

WithSecLabels sets the labels for SELinux.

func WithShmDir 

func WithShmDir(dir string) CtrCreateOption

WithShmDir sets the directory that should be mounted on /dev/shm.

func WithShmSize 

func WithShmSize(size int64) CtrCreateOption

WithShmSize sets the size of /dev/shm tmpfs mount.

func WithStaticIP added in v0.10.1 

func WithStaticIP(ip net.IP) CtrCreateOption

WithStaticIP indicates that the container should request a static IP from the CNI plugins. It cannot be set unless WithNetNS has already been passed. Further, it cannot be set if additional CNI networks to join have been specified.

func WithStaticMAC added in v1.7.0 

func WithStaticMAC(mac net.HardwareAddr) CtrCreateOption

WithStaticMAC indicates that the container should request a static MAC from the CNI plugins. It cannot be set unless WithNetNS has already been passed. Further, it cannot be set if additional CNI networks to join have been specified.

func WithStdin 

func WithStdin() CtrCreateOption

WithStdin keeps stdin on the container open to allow interaction.

func WithStopSignal 

func WithStopSignal(signal syscall.Signal) CtrCreateOption

WithStopSignal sets the signal that will be sent to stop the container.

func WithStopTimeout 

func WithStopTimeout(timeout uint) CtrCreateOption

WithStopTimeout sets the time to after initial stop signal is sent to the container, before sending the kill signal.

func WithSystemd added in v0.11.1 

func WithSystemd() CtrCreateOption

WithSystemd turns on systemd mode in the container

func WithUTSNSFrom 

func WithUTSNSFrom(nsCtr *Container) CtrCreateOption

WithUTSNSFrom indicates the the container should join the UTS namespace of the given container. If the container has joined a pod, it can only join the namespaces of containers in the same pod.

func WithUTSNSFromPod added in v0.8.4 

func WithUTSNSFromPod(p *Pod) CtrCreateOption

WithUTSNSFromPod indicates the the container should join the UTS namespace of its pod

func WithUseImageHosts added in v1.2.0 

func WithUseImageHosts() CtrCreateOption

WithUseImageHosts tells the container not to bind-mount /etc/hosts in. This conflicts with WithHosts().

func WithUseImageResolvConf added in v1.2.0 

func WithUseImageResolvConf() CtrCreateOption

WithUseImageResolvConf tells the container not to bind-mount resolv.conf in. This conflicts with other DNS-related options.

func WithUser 

func WithUser(user string) CtrCreateOption

WithUser sets the user identity field in configutation. Valid uses [user | user:group | uid | uid:gid | user:gid | uid:group ].

func WithUserNSFrom 

func WithUserNSFrom(nsCtr *Container) CtrCreateOption

WithUserNSFrom indicates the the container should join the user namespace of the given container. If the container has joined a pod, it can only join the namespaces of containers in the same pod.

func WithUserVolumes added in v0.5.1 

func WithUserVolumes(volumes []string) CtrCreateOption

WithUserVolumes sets the user-added volumes of the container. These are not added to the container's spec, but will instead be used during commit to populate the volumes of the new image, and to trigger some OCI hooks that are only added if volume mounts are present. Furthermore, they are used in the output of inspect, to filter volumes - only volumes included in this list will be included in the output. Unless explicitly set, committed images will have no volumes. The given volumes slice must not be nil.

type DBConfig added in v0.12.1 

type DBConfig struct {
	LibpodRoot  string
	LibpodTmp   string
	StorageRoot string
	StorageTmp  string
	GraphDriver string
	VolumePath  string
}

DBConfig is a set of Libpod runtime configuration settings that are saved in a State when it is first created, and can subsequently be retrieved.

type ExecConfig added in v1.9.0 

type ExecConfig struct {
	// Command the the command that will be invoked in the exec session.
	// Must not be empty.
	Command []string `json:"command"`
	// Terminal is whether the exec session will allocate a pseudoterminal.
	Terminal bool `json:"terminal,omitempty"`
	// AttachStdin is whether the STDIN stream will be forwarded to the exec
	// session's first process when attaching. Only available if Terminal is
	// false.
	AttachStdin bool `json:"attachStdin,omitempty"`
	// AttachStdout is whether the STDOUT stream will be forwarded to the
	// exec session's first process when attaching. Only available if
	// Terminal is false.
	AttachStdout bool `json:"attachStdout,omitempty"`
	// AttachStderr is whether the STDERR stream will be forwarded to the
	// exec session's first process when attaching. Only available if
	// Terminal is false.
	AttachStderr bool `json:"attachStderr,omitempty"`
	// DetachKeys are keys that will be used to detach from the exec
	// session. Here, nil will use the default detach keys, where a pointer
	// to the empty string ("") will disable detaching via detach keys.
	DetachKeys *string `json:"detachKeys,omitempty"`
	// Environment is a set of environment variables that will be set for
	// the first process started by the exec session.
	Environment map[string]string `json:"environment,omitempty"`
	// Privileged is whether the exec session will be privileged - that is,
	// will be granted additional capabilities.
	Privileged bool `json:"privileged,omitempty"`
	// User is the user the exec session will be run as.
	// If set to "" the exec session will be started as the same user the
	// container was started as.
	User string `json:"user,omitempty"`
	// WorkDir is the working directory for the first process that will be
	// launched by the exec session.
	// If set to "" the exec session will be started in / within the
	// container.
	WorkDir string `json:"workDir,omitempty"`
	// PreserveFDs indicates that a number of extra FDs from the process
	// running libpod will be passed into the container. These are assumed
	// to begin at 3 (immediately after the standard streams). The number
	// given is the number that will be passed into the exec session,
	// starting at 3.
	PreserveFDs uint `json:"preserveFds,omitempty"`
}

ExecConfig contains the configuration of an exec session

type ExecOptions added in v1.6.2 

type ExecOptions struct {
	// Cmd is the command to execute.
	Cmd []string
	// CapAdd is a set of capabilities to add to the executed command.
	CapAdd []string
	// Env is a set of environment variables to add to the container.
	Env map[string]string
	// Terminal is whether to create a new TTY for the exec session.
	Terminal bool
	// Cwd is the working directory for the executed command. If unset, the
	// working directory of the container will be used.
	Cwd string
	// User is the user the command will be executed as. If unset, the user
	// the container was run as will be used.
	User string
	// Streams are the streams that will be attached to the container.
	Streams *define.AttachStreams
	// PreserveFDs is a number of additional file descriptors (in addition
	// to 0, 1, 2) that will be passed to the executed process. The total FDs
	// passed will be 3 + PreserveFDs.
	PreserveFDs uint
	// DetachKeys is a set of keys that, when pressed in sequence, will
	// detach from the container.
	// If not provided, the default keys will be used.
	// If provided but set to "", detaching from the container will be
	// disabled.
	DetachKeys *string
}

ExecOptions are options passed into ExecContainer. They control the command that will be executed and how the exec will proceed.

type ExecSession added in v0.3.1 

type ExecSession struct {
	// Id is the ID of the exec session.
	// Named somewhat strangely to not conflict with ID().
	Id string `json:"id"`
	// ContainerId is the ID of the container this exec session belongs to.
	// Named somewhat strangely to not conflict with ContainerID().
	ContainerId string `json:"containerId"`

	// State is the state of the exec session.
	State define.ContainerExecStatus `json:"state"`
	// PID is the PID of the process created by the exec session.
	PID int `json:"pid,omitempty"`
	// ExitCode is the exit code of the exec session, if it has exited.
	ExitCode int `json:"exitCode,omitempty"`

	// Config is the configuration of this exec session.
	// Cannot be empty.
	Config *ExecConfig `json:"config"`
}

ExecSession contains information on a single exec session attached to a given container.

func (*ExecSession) ContainerID added in v1.9.0 

func (e *ExecSession) ContainerID() string

ContainerID returns the ID of the container this exec session was started in.

func (*ExecSession) ID added in v0.3.1 

func (e *ExecSession) ID() string

ID returns the ID of an exec session.

func (*ExecSession) Inspect added in v1.9.0 

func (e *ExecSession) Inspect() (*define.InspectExecSession, error)

Inspect inspects the given exec session and produces detailed output on its configuration and current state.

type HTTPAttachStreams added in v1.8.0 

type HTTPAttachStreams struct {
	Stdin  bool
	Stdout bool
	Stderr bool
}

HTTPAttachStreams informs the HTTPAttach endpoint which of the container's standard streams should be streamed to the client. If this is passed, at least one of the streams must be set to true.

type HealthCheckStatus added in v1.2.0 

type HealthCheckStatus int

HealthCheckStatus represents the current state of a container

type InMemoryState 

type InMemoryState struct {
	// contains filtered or unexported fields
}

An InMemoryState is a purely in-memory state store

func (*InMemoryState) AddContainer 

func (s *InMemoryState) AddContainer(ctr *Container) error

AddContainer adds a container to the state Containers in a pod cannot be added to the state

func (*InMemoryState) AddContainerToPod 

func (s *InMemoryState) AddContainerToPod(pod *Pod, ctr *Container) error

AddContainerToPod adds a container to the given pod, also adding it to the state

func (*InMemoryState) AddExecSession added in v1.9.0 

func (s *InMemoryState) AddExecSession(ctr *Container, session *ExecSession) error

Add an exec session to the database

func (*InMemoryState) AddPod 

func (s *InMemoryState) AddPod(pod *Pod) error

AddPod adds a given pod to the state

func (*InMemoryState) AddVolume added in v0.12.1 

func (s *InMemoryState) AddVolume(volume *Volume) error

AddVolume adds a volume to the state

func (*InMemoryState) AllContainers 

func (s *InMemoryState) AllContainers() ([]*Container, error)

AllContainers retrieves all containers from the state

func (*InMemoryState) AllPods 

func (s *InMemoryState) AllPods() ([]*Pod, error)

AllPods retrieves all pods currently in the state

func (*InMemoryState) AllVolumes added in v0.12.1 

func (s *InMemoryState) AllVolumes() ([]*Volume, error)

AllVolumes returns all volumes that exist in the state

func (*InMemoryState) Close 

func (s *InMemoryState) Close() error

Close the state before shutdown This is a no-op as we have no backing disk

func (*InMemoryState) Container 

func (s *InMemoryState) Container(id string) (*Container, error)

Container retrieves a container from its full ID

func (*InMemoryState) ContainerInUse 

func (s *InMemoryState) ContainerInUse(ctr *Container) ([]string, error)

ContainerInUse checks if the given container is being used by other containers

func (*InMemoryState) GetContainerConfig added in v1.6.2 

func (s *InMemoryState) GetContainerConfig(id string) (*ContainerConfig, error)

GetContainerConfig returns a container config from the database by full ID

func (*InMemoryState) GetContainerExecSessions added in v1.9.0 

func (s *InMemoryState) GetContainerExecSessions(ctr *Container) ([]string, error)

GetContainerExecSessions retrieves all exec sessions for the given container.

func (*InMemoryState) GetDBConfig added in v0.12.1 

func (s *InMemoryState) GetDBConfig() (*DBConfig, error)

GetDBConfig is not implemented for in-memory state. As we do not store a config, return an empty one.

func (*InMemoryState) GetExecSession added in v1.9.0 

func (s *InMemoryState) GetExecSession(id string) (string, error)

Get an exec session from the database by full or partial ID.

func (*InMemoryState) HasContainer 

func (s *InMemoryState) HasContainer(id string) (bool, error)

HasContainer checks if a container with the given ID is present in the state

func (*InMemoryState) HasPod 

func (s *InMemoryState) HasPod(id string) (bool, error)

HasPod checks if a pod with the given ID is present in the state

func (*InMemoryState) HasVolume added in v0.12.1 

func (s *InMemoryState) HasVolume(name string) (bool, error)

HasVolume checks if a volume with the given name is present in the state

func (*InMemoryState) LookupContainer 

func (s *InMemoryState) LookupContainer(idOrName string) (*Container, error)

LookupContainer retrieves a container by full ID, unique partial ID, or name

func (*InMemoryState) LookupContainerID added in v1.6.2 

func (s *InMemoryState) LookupContainerID(idOrName string) (string, error)

LookupContainerID retrieves a container ID by full ID, unique partial ID, or name

func (*InMemoryState) LookupPod 

func (s *InMemoryState) LookupPod(idOrName string) (*Pod, error)

LookupPod retrieves a pod from the state from a full or unique partial ID or a full name

func (*InMemoryState) LookupVolume added in v1.6.0 

func (s *InMemoryState) LookupVolume(name string) (*Volume, error)

LookupVolume finds a volume from an unambiguous partial ID.

func (*InMemoryState) Pod 

func (s *InMemoryState) Pod(id string) (*Pod, error)

Pod retrieves a pod from the state from its full ID

func (*InMemoryState) PodContainers 

func (s *InMemoryState) PodContainers(pod *Pod) ([]*Container, error)

PodContainers retrieves the containers from a pod

func (*InMemoryState) PodContainersByID 

func (s *InMemoryState) PodContainersByID(pod *Pod) ([]string, error)

PodContainersByID returns the IDs of all containers in the given pod

func (*InMemoryState) PodHasContainer 

func (s *InMemoryState) PodHasContainer(pod *Pod, ctrID string) (bool, error)

PodHasContainer checks if the given pod has a container with the given ID

func (*InMemoryState) Refresh 

func (s *InMemoryState) Refresh() error

Refresh clears container and pod stats after a reboot In-memory state won't survive a reboot so this is a no-op

func (*InMemoryState) RemoveContainer 

func (s *InMemoryState) RemoveContainer(ctr *Container) error

RemoveContainer removes a container from the state The container will only be removed from the state, not from the pod the container belongs to

func (*InMemoryState) RemoveContainerExecSessions added in v1.9.0 

func (s *InMemoryState) RemoveContainerExecSessions(ctr *Container) error

RemoveContainerExecSessions removes all exec sessions for the given container.

func (*InMemoryState) RemoveContainerFromPod 

func (s *InMemoryState) RemoveContainerFromPod(pod *Pod, ctr *Container) error

RemoveContainerFromPod removes the given container from the given pod The container is also removed from the state

func (*InMemoryState) RemoveExecSession added in v1.9.0 

func (s *InMemoryState) RemoveExecSession(session *ExecSession) error

RemoveExecSession removes an exec session from the database.

func (*InMemoryState) RemovePod 

func (s *InMemoryState) RemovePod(pod *Pod) error

RemovePod removes a given pod from the state Only empty pods can be removed

func (*InMemoryState) RemovePodContainers 

func (s *InMemoryState) RemovePodContainers(pod *Pod) error

RemovePodContainers removes all containers from a pod This is used to simultaneously remove a number of containers with many interdependencies Will only remove containers if no dependencies outside of the pod are present

func (*InMemoryState) RemoveVolume added in v0.12.1 

func (s *InMemoryState) RemoveVolume(volume *Volume) error

RemoveVolume removes a volume from the state

func (*InMemoryState) RewriteContainerConfig added in v1.1.0 

func (s *InMemoryState) RewriteContainerConfig(ctr *Container, newCfg *ContainerConfig) error

RewriteContainerConfig rewrites a container's configuration. This function is DANGEROUS, even with an in-memory state. Please read the full comment on it in state.go before using it.

func (*InMemoryState) RewritePodConfig added in v1.1.0 

func (s *InMemoryState) RewritePodConfig(pod *Pod, newCfg *PodConfig) error

RewritePodConfig rewrites a pod's configuration. This function is DANGEROUS, even with in-memory state. Please read the full comment on it in state.go before using it.

func (*InMemoryState) RewriteVolumeConfig added in v1.6.0 

func (s *InMemoryState) RewriteVolumeConfig(volume *Volume, newCfg *VolumeConfig) error

RewriteVolumeConfig rewrites a volume's configuration. This function is DANGEROUS, even with in-memory state. Please read the full comment in state.go before using it.

func (*InMemoryState) SaveContainer 

func (s *InMemoryState) SaveContainer(ctr *Container) error

SaveContainer saves a container's state As all state is in-memory, any changes are always reflected as soon as they are made As such this is a no-op

func (*InMemoryState) SavePod added in v0.5.3 

func (s *InMemoryState) SavePod(pod *Pod) error

SavePod updates a pod in the state This is a no-op at there is no backing store

func (*InMemoryState) SaveVolume added in v1.6.0 

func (s *InMemoryState) SaveVolume(volume *Volume) error

SaveVolume saves a volume's state to the database. For the in-memory state, this is a no-op.

func (*InMemoryState) SetNamespace added in v0.7.4 

func (s *InMemoryState) SetNamespace(ns string) error

SetNamespace sets the namespace for container and pod retrieval.

func (*InMemoryState) UpdateContainer 

func (s *InMemoryState) UpdateContainer(ctr *Container) error

UpdateContainer updates a container's state As all state is in-memory, no update will be required As such this is a no-op

func (*InMemoryState) UpdatePod added in v0.5.3 

func (s *InMemoryState) UpdatePod(pod *Pod) error

UpdatePod updates a pod in the state This is a no-op as there is no backing store

func (*InMemoryState) UpdateVolume added in v1.6.0 

func (s *InMemoryState) UpdateVolume(volume *Volume) error

UpdateVolume updates a volume from the database. For the in-memory state, this is a no-op.

func (*InMemoryState) ValidateDBConfig added in v0.12.1 

func (s *InMemoryState) ValidateDBConfig(runtime *Runtime) error

ValidateDBConfig is not implemented for the in-memory state. Since we do nothing just return no error.

func (*InMemoryState) Volume added in v0.12.1 

func (s *InMemoryState) Volume(name string) (*Volume, error)

Volume retrieves a volume from its full name

func (*InMemoryState) VolumeInUse added in v0.12.1 

func (s *InMemoryState) VolumeInUse(volume *Volume) ([]string, error)

VolumeInUse checks if the given volume is being used by at least one container

type InfraContainerConfig added in v0.8.4 

type InfraContainerConfig struct {
	HasInfraContainer  bool                 `json:"makeInfraContainer"`
	HostNetwork        bool                 `json:"infraHostNetwork,omitempty"`
	PortBindings       []ocicni.PortMapping `json:"infraPortBindings"`
	StaticIP           net.IP               `json:"staticIP,omitempty"`
	StaticMAC          net.HardwareAddr     `json:"staticMAC,omitempty"`
	UseImageResolvConf bool                 `json:"useImageResolvConf,omitempty"`
	DNSServer          []string             `json:"dnsServer,omitempty"`
	DNSSearch          []string             `json:"dnsSearch,omitempty"`
	DNSOption          []string             `json:"dnsOption,omitempty"`
	UseImageHosts      bool                 `json:"useImageHosts,omitempty"`
	HostAdd            []string             `json:"hostsAdd,omitempty"`
	Networks           []string             `json:"networks,omitempty"`
}

InfraContainerConfig is the configuration for the pod's infra container

type InspectVolumeData added in v1.6.0 

type InspectVolumeData struct {
	// Name is the name of the volume.
	Name string `json:"Name"`
	// Driver is the driver used to create the volume.
	// This will be properly implemented in a future version.
	Driver string `json:"Driver"`
	// Mountpoint is the path on the host where the volume is mounted.
	Mountpoint string `json:"Mountpoint"`
	// CreatedAt is the date and time the volume was created at. This is not
	// stored for older Libpod volumes; if so, it will be omitted.
	CreatedAt time.Time `json:"CreatedAt,omitempty"`
	// Status is presently unused and provided only for Docker compatibility.
	// In the future it will be used to return information on the volume's
	// current state.
	Status map[string]string `json:"Status,omitempty"`
	// Labels includes the volume's configured labels, key:value pairs that
	// can be passed during volume creation to provide information for third
	// party tools.
	Labels map[string]string `json:"Labels"`
	// Scope is unused and provided solely for Docker compatibility. It is
	// unconditionally set to "local".
	Scope string `json:"Scope"`
	// Options is a set of options that were used when creating the volume.
	// It is presently not used.
	Options map[string]string `json:"Options"`
	// UID is the UID that the volume was created with.
	UID int `json:"UID,omitempty"`
	// GID is the GID that the volume was created with.
	GID int `json:"GID,omitempty"`
	// Anonymous indicates that the volume was created as an anonymous
	// volume for a specific container, and will be be removed when any
	// container using it is removed.
	Anonymous bool `json:"Anonymous,omitempty"`
}

InspectVolumeData is the output of Inspect() on a volume. It is matched to the format of 'docker volume inspect'.

type LinuxNS 

type LinuxNS int

LinuxNS represents a Linux namespace 

const (
	// InvalidNS is an invalid namespace
	InvalidNS LinuxNS = iota
	// IPCNS is the IPC namespace
	IPCNS LinuxNS = iota
	// MountNS is the mount namespace
	MountNS LinuxNS = iota
	// NetNS is the network namespace
	NetNS LinuxNS = iota
	// PIDNS is the PID namespace
	PIDNS LinuxNS = iota
	// UserNS is the user namespace
	UserNS LinuxNS = iota
	// UTSNS is the UTS namespace
	UTSNS LinuxNS = iota
	// CgroupNS is the CGroup namespace
	CgroupNS LinuxNS = iota
)

func (LinuxNS) String 

func (ns LinuxNS) String() string

String returns a string representation of a Linux namespace It is guaranteed to be the name of the namespace in /proc for valid ns types

type MissingRuntime added in v1.6.2 

type MissingRuntime struct {
	// contains filtered or unexported fields
}

MissingRuntime is used when the OCI runtime requested by the container is missing (not installed or not in the configuration file).

func (*MissingRuntime) AttachResize added in v1.8.0 

func (r *MissingRuntime) AttachResize(ctr *Container, newSize remotecommand.TerminalSize) error

AttachResize is not available as the runtime is missing

func (*MissingRuntime) AttachSocketPath added in v1.6.2 

func (r *MissingRuntime) AttachSocketPath(ctr *Container) (string, error)

AttachSocketPath does not work as there is no runtime to attach to. (Theoretically we could follow ExitFilePath but there is no guarantee the container is running and thus has an attach socket...)

func (*MissingRuntime) CheckpointContainer added in v1.6.2 

func (r *MissingRuntime) CheckpointContainer(ctr *Container, options ContainerCheckpointOptions) error

CheckpointContainer is not available as the runtime is missing

func (*MissingRuntime) CreateContainer added in v1.6.2 

func (r *MissingRuntime) CreateContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) error

CreateContainer is not available as the runtime is missing

func (*MissingRuntime) DeleteContainer added in v1.6.2 

func (r *MissingRuntime) DeleteContainer(ctr *Container) error

DeleteContainer is not available as the runtime is missing

func (*MissingRuntime) ExecAttachResize added in v1.9.0 

func (r *MissingRuntime) ExecAttachResize(ctr *Container, sessionID string, newSize remotecommand.TerminalSize) error

ExecAttachResize is not available as the runtime is missing.

func (*MissingRuntime) ExecAttachSocketPath added in v1.6.2 

func (r *MissingRuntime) ExecAttachSocketPath(ctr *Container, sessionID string) (string, error)

ExecAttachSocketPath does not work as there is no runtime to attach to. (Again, we could follow ExitFilePath, but no guarantee there is an existing and running exec session)

func (*MissingRuntime) ExecContainer added in v1.6.2 

func (r *MissingRuntime) ExecContainer(ctr *Container, sessionID string, options *ExecOptions) (int, chan error, error)

ExecContainer is not available as the runtime is missing

func (*MissingRuntime) ExecContainerCleanup added in v1.6.2 

func (r *MissingRuntime) ExecContainerCleanup(ctr *Container, sessionID string) error

ExecContainerCleanup is not available as the runtime is missing

func (*MissingRuntime) ExecStopContainer added in v1.6.2 

func (r *MissingRuntime) ExecStopContainer(ctr *Container, sessionID string, timeout uint) error

ExecStopContainer is not available as the runtime is missing. TODO: We can also investigate using unix.Kill() on the PID of the exec session here if we want to make stopping containers possible. Won't be perfect, though.

func (*MissingRuntime) ExecUpdateStatus added in v1.7.0 

func (r *MissingRuntime) ExecUpdateStatus(ctr *Container, sessionID string) (bool, error)

ExecUpdateStatus is not available as the runtime is missing.

func (*MissingRuntime) ExitFilePath added in v1.6.2 

func (r *MissingRuntime) ExitFilePath(ctr *Container) (string, error)

ExitFilePath returns the exit file path for containers. Here, we mimic what ConmonOCIRuntime does, because there is a chance that the container in question is still running happily (config file modified to remove a runtime, for example). We can't find the runtime to do anything to the container, but Conmon should still place an exit file for it.

func (*MissingRuntime) HTTPAttach added in v1.8.0 

func (r *MissingRuntime) HTTPAttach(ctr *Container, httpConn net.Conn, httpBuf *bufio.ReadWriter, streams *HTTPAttachStreams, detachKeys *string, cancel <-chan bool) error

HTTPAttach is not available as the runtime is missing

func (*MissingRuntime) KillContainer added in v1.6.2 

func (r *MissingRuntime) KillContainer(ctr *Container, signal uint, all bool) error

KillContainer is not available as the runtime is missing TODO: We could attempt to unix.Kill() the PID as recorded in the state if we really want to smooth things out? Won't be perfect, but if the container has a PID namespace it could be enough?

func (*MissingRuntime) Name added in v1.6.2 

func (r *MissingRuntime) Name() string

Name is the name of the missing runtime

func (*MissingRuntime) Path added in v1.6.2 

func (r *MissingRuntime) Path() string

Path is not available as the runtime is missing

func (*MissingRuntime) PauseContainer added in v1.6.2 

func (r *MissingRuntime) PauseContainer(ctr *Container) error

PauseContainer is not available as the runtime is missing

func (*MissingRuntime) RuntimeInfo added in v1.6.2 

func (r *MissingRuntime) RuntimeInfo() (*define.ConmonInfo, *define.OCIRuntimeInfo, error)

RuntimeInfo returns information on the missing runtime

func (*MissingRuntime) StartContainer added in v1.6.2 

func (r *MissingRuntime) StartContainer(ctr *Container) error

StartContainer is not available as the runtime is missing

func (*MissingRuntime) StopContainer added in v1.6.2 

func (r *MissingRuntime) StopContainer(ctr *Container, timeout uint, all bool) error

StopContainer is not available as the runtime is missing

func (*MissingRuntime) SupportsCheckpoint added in v1.6.2 

func (r *MissingRuntime) SupportsCheckpoint() bool

SupportsCheckpoint returns false as checkpointing requires a working runtime

func (*MissingRuntime) SupportsJSONErrors added in v1.6.2 

func (r *MissingRuntime) SupportsJSONErrors() bool

SupportsJSONErrors returns false as there is no runtime to give errors

func (*MissingRuntime) SupportsNoCgroups added in v1.6.2 

func (r *MissingRuntime) SupportsNoCgroups() bool

SupportsNoCgroups returns false as there is no runtime to create containers

func (*MissingRuntime) UnpauseContainer added in v1.6.2 

func (r *MissingRuntime) UnpauseContainer(ctr *Container) error

UnpauseContainer is not available as the runtime is missing

func (*MissingRuntime) UpdateContainerStatus added in v1.6.2 

func (r *MissingRuntime) UpdateContainerStatus(ctr *Container) error

UpdateContainerStatus is not available as the runtime is missing

type OCIRuntime 

type OCIRuntime interface {
	// Name returns the name of the runtime.
	Name() string
	// Path returns the path to the runtime executable.
	Path() string

	// CreateContainer creates the container in the OCI runtime.
	CreateContainer(ctr *Container, restoreOptions *ContainerCheckpointOptions) error
	// UpdateContainerStatus updates the status of the given container.
	UpdateContainerStatus(ctr *Container) error
	// StartContainer starts the given container.
	StartContainer(ctr *Container) error
	// KillContainer sends the given signal to the given container.
	// If all is set, all processes in the container will be signalled;
	// otherwise, only init will be signalled.
	KillContainer(ctr *Container, signal uint, all bool) error
	// StopContainer stops the given container.
	// The container's stop signal (or SIGTERM if unspecified) will be sent
	// first.
	// After the given timeout, SIGKILL will be sent.
	// If the given timeout is 0, SIGKILL will be sent immediately, and the
	// stop signal will be omitted.
	// If all is set, we will attempt to use the --all flag will `kill` in
	// the OCI runtime to kill all processes in the container, including
	// exec sessions. This is only supported if the container has cgroups.
	StopContainer(ctr *Container, timeout uint, all bool) error
	// DeleteContainer deletes the given container from the OCI runtime.
	DeleteContainer(ctr *Container) error
	// PauseContainer pauses the given container.
	PauseContainer(ctr *Container) error
	// UnpauseContainer unpauses the given container.
	UnpauseContainer(ctr *Container) error

	// HTTPAttach performs an attach intended to be transported over HTTP.
	// For terminal attach, the container's output will be directly streamed
	// to output; otherwise, STDOUT and STDERR will be multiplexed, with
	// a header prepended as follows: 1-byte STREAM (0, 1, 2 for STDIN,
	// STDOUT, STDERR), 3 null (0x00) bytes, 4-byte big endian length.
	// If a cancel channel is provided, it can be used to asynchronously
	// termninate the attach session. Detach keys, if given, will also cause
	// the attach session to be terminated if provided via the STDIN
	// channel. If they are not provided, the default detach keys will be
	// used instead. Detach keys of "" will disable detaching via keyboard.
	// The streams parameter may be passed for containers that did not
	// create a terminal and will determine which streams to forward to the
	// client.
	HTTPAttach(ctr *Container, httpConn net.Conn, httpBuf *bufio.ReadWriter, streams *HTTPAttachStreams, detachKeys *string, cancel <-chan bool) error
	// AttachResize resizes the terminal in use by the given container.
	AttachResize(ctr *Container, newSize remotecommand.TerminalSize) error

	// ExecContainer executes a command in a running container.
	// Returns an int (exit code), error channel (errors from attach), and
	// error (errors that occurred attempting to start the exec session).
	ExecContainer(ctr *Container, sessionID string, options *ExecOptions) (int, chan error, error)
	// ExecAttachResize resizes the terminal of a running exec session. Only
	// allowed with sessions that were created with a TTY.
	ExecAttachResize(ctr *Container, sessionID string, newSize remotecommand.TerminalSize) error
	// ExecStopContainer stops a given exec session in a running container.
	// SIGTERM with be sent initially, then SIGKILL after the given timeout.
	// If timeout is 0, SIGKILL will be sent immediately, and SIGTERM will
	// be omitted.
	ExecStopContainer(ctr *Container, sessionID string, timeout uint) error
	// ExecUpdateStatus checks the status of a given exec session.
	// Returns true if the session is still running, or false if it exited.
	ExecUpdateStatus(ctr *Container, sessionID string) (bool, error)
	// ExecContainerCleanup cleans up after an exec session exits.
	// It removes any files left by the exec session that are no longer
	// needed, including the attach socket.
	ExecContainerCleanup(ctr *Container, sessionID string) error

	// CheckpointContainer checkpoints the given container.
	// Some OCI runtimes may not support this - if SupportsCheckpoint()
	// returns false, this is not implemented, and will always return an
	// error.
	CheckpointContainer(ctr *Container, options ContainerCheckpointOptions) error

	// SupportsCheckpoint returns whether this OCI runtime
	// implementation supports the CheckpointContainer() operation.
	SupportsCheckpoint() bool
	// SupportsJSONErrors is whether the runtime can return JSON-formatted
	// error messages.
	SupportsJSONErrors() bool
	// SupportsNoCgroups is whether the runtime supports running containers
	// without cgroups.
	SupportsNoCgroups() bool

	// AttachSocketPath is the path to the socket to attach to a given
	// container.
	// TODO: If we move Attach code in here, this should be made internal.
	// We don't want to force all runtimes to share the same attach
	// implementation.
	AttachSocketPath(ctr *Container) (string, error)
	// ExecAttachSocketPath is the path to the socket to attach to a given
	// exec session in the given container.
	// TODO: Probably should be made internal.
	ExecAttachSocketPath(ctr *Container, sessionID string) (string, error)
	// ExitFilePath is the path to a container's exit file.
	// All runtime implementations must create an exit file when containers
	// exit, containing the exit code of the container (as a string).
	// This is the path to that file for a given container.
	ExitFilePath(ctr *Container) (string, error)

	// RuntimeInfo returns verbose information about the runtime.
	RuntimeInfo() (*define.ConmonInfo, *define.OCIRuntimeInfo, error)
}

OCIRuntime is an implementation of an OCI runtime. The OCI runtime implementation is expected to be a fairly thin wrapper around the actual runtime, and is not expected to include things like state management logic - e.g., we do not expect it to determine on its own that calling 'UnpauseContainer()' on a container that is not paused is an error. The code calling the OCIRuntime will manage this. TODO: May want to move the Attach() code under this umbrella. It's highly OCI runtime dependent. TODO: May want to move the conmon cleanup code here too - it depends on Conmon being in use.

type Pod 

type Pod struct {
	// contains filtered or unexported fields
}

Pod represents a group of containers that are managed together. Any operations on a Pod that access state must begin with a call to updatePod(). There is no guarantee that state exists in a readable state before this call, and even if it does its contents will be out of date and must be refreshed from the database. Generally, this requirement applies only to top-level functions; helpers can assume their callers handled this requirement. Generally speaking, if a function takes the pod lock and accesses any part of state, it should updatePod() immediately after locking. Pod represents a group of containers that may share namespaces

func (*Pod) AllContainers 

func (p *Pod) AllContainers() ([]*Container, error)

AllContainers retrieves the containers in the pod

func (*Pod) AllContainersByID 

func (p *Pod) AllContainersByID() ([]string, error)

AllContainersByID returns the container IDs of all the containers in the pod

func (*Pod) CgroupParent added in v0.5.3 

func (p *Pod) CgroupParent() string

CgroupParent returns the pod's CGroup parent

func (*Pod) CgroupPath added in v0.5.3 

func (p *Pod) CgroupPath() (string, error)

CgroupPath returns the path to the pod's CGroup

func (*Pod) CreatedTime added in v0.7.2 

func (p *Pod) CreatedTime() time.Time

CreatedTime gets the time when the pod was created

func (*Pod) GenerateForKube added in v1.0.0 

func (p *Pod) GenerateForKube() (*v1.Pod, []v1.ServicePort, error)

GenerateForKube takes a slice of libpod containers and generates one v1.Pod description

func (*Pod) GetPodPidInformation added in v0.8.4 

func (p *Pod) GetPodPidInformation(descriptors []string) ([]string, error)

GetPodPidInformation returns process-related data of all processes in the pod. The output data can be controlled via the `descriptors` argument which expects format descriptors and supports all AIXformat descriptors of ps (1) plus some additional ones to for instance inspect the set of effective capabilities. Eeach element in the returned string slice is a tab-separated string.

For more details, please refer to github.com/containers/psgo.

func (*Pod) GetPodStats added in v0.8.3 

func (p *Pod) GetPodStats(previousContainerStats map[string]*ContainerStats) (map[string]*ContainerStats, error)

GetPodStats returns the stats for each of its containers

func (*Pod) GetPodStatus added in v1.8.0 

func (p *Pod) GetPodStatus() (string, error)

GetPodStatus determines the status of the pod based on the statuses of the containers in the pod. Returns a string representation of the pod status

func (*Pod) HasContainer 

func (p *Pod) HasContainer(id string) (bool, error)

HasContainer checks if a container is present in the pod

func (*Pod) HasInfraContainer added in v0.8.4 

func (p *Pod) HasInfraContainer() bool

HasInfraContainer returns whether the pod will create an infra container

func (*Pod) ID 

func (p *Pod) ID() string

ID retrieves the pod's ID

func (*Pod) InfraContainerID added in v0.8.4 

func (p *Pod) InfraContainerID() (string, error)

InfraContainerID returns the infra container ID for a pod. If the container returned is "", the pod has no infra container.

func (*Pod) Inspect added in v0.8.2 

func (p *Pod) Inspect() (*PodInspect, error)

Inspect returns a PodInspect struct to describe the pod

func (*Pod) Kill 

func (p *Pod) Kill(signal uint) (map[string]error, error)

Kill sends a signal to all running containers within a pod Signals will only be sent to running containers. Containers that are not running will be ignored. All signals are sent independently, and sending will continue even if some containers encounter errors. An error and a map[string]error are returned If the error is not nil and the map is nil, an error was encountered before any containers were signalled If map is not nil, an error was encountered when signalling one or more containers. The container ID is mapped to the error encountered. The error is set to ErrCtrExists If both error and the map are nil, all containers were signalled successfully

func (*Pod) Labels 

func (p *Pod) Labels() map[string]string

Labels returns the pod's labels

func (*Pod) Name 

func (p *Pod) Name() string

Name retrieves the pod's name

func (*Pod) Namespace added in v0.7.4 

func (p *Pod) Namespace() string

Namespace returns the pod's libpod namespace. Namespaces are used to logically separate containers and pods in the state.

func (*Pod) Pause added in v0.7.4 

func (p *Pod) Pause() (map[string]error, error)

Pause pauses all containers within a pod that are running. Only running containers will be paused. Paused, stopped, or created containers will be ignored. All containers are paused independently. An error pausing one container will not prevent other containers being paused. An error and a map[string]error are returned If the error is not nil and the map is nil, an error was encountered before any containers were paused If map is not nil, an error was encountered when pausing one or more containers. The container ID is mapped to the error encountered. The error is set to ErrCtrExists If both error and the map are nil, all containers were paused without error

func (*Pod) Restart added in v0.7.4 

func (p *Pod) Restart(ctx context.Context) (map[string]error, error)

Restart restarts all containers within a pod that are not paused or in an error state. It combines the effects of Stop() and Start() on a container Each container will use its own stop timeout. All containers are started independently, in order dictated by their dependencies. An error restarting one container will not prevent other containers being restarted. An error and a map[string]error are returned If the error is not nil and the map is nil, an error was encountered before any containers were restarted If map is not nil, an error was encountered when restarting one or more containers. The container ID is mapped to the error encountered. The error is set to ErrCtrExists If both error and the map are nil, all containers were restarted without error

func (*Pod) SharesCgroup added in v0.8.4 

func (p *Pod) SharesCgroup() bool

SharesCgroup returns whether containers in the pod will default to this pod's cgroup instead of the default libpod parent

func (*Pod) SharesIPC added in v0.8.4 

func (p *Pod) SharesIPC() bool

SharesIPC returns whether containers in pod default to use IPC namespace of first container in pod

func (*Pod) SharesMount added in v0.8.4 

func (p *Pod) SharesMount() bool

SharesMount returns whether containers in pod default to use PID namespace of first container in pod

func (*Pod) SharesNamespaces added in v0.8.4 

func (p *Pod) SharesNamespaces() bool

SharesNamespaces checks if the pod has any kernel namespaces set as shared. An infra container will not be created if no kernel namespaces are shared.

func (*Pod) SharesNet added in v0.8.4 

func (p *Pod) SharesNet() bool

SharesNet returns whether containers in pod default to use network namespace of first container in pod

func (*Pod) SharesPID added in v0.8.4 

func (p *Pod) SharesPID() bool

SharesPID returns whether containers in pod default to use PID namespace of first container in pod

func (*Pod) SharesUTS added in v0.8.4 

func (p *Pod) SharesUTS() bool

SharesUTS returns whether containers in pod default to use UTS namespace of first container in pod

func (*Pod) SharesUser added in v0.8.4 

func (p *Pod) SharesUser() bool

SharesUser returns whether containers in pod default to use user namespace of first container in pod

func (*Pod) Start 

func (p *Pod) Start(ctx context.Context) (map[string]error, error)

Start starts all containers within a pod It combines the effects of Init() and Start() on a container If a container has already been initialized it will be started, otherwise it will be initialized then started. Containers that are already running or have been paused are ignored All containers are started independently, in order dictated by their dependencies. An error and a map[string]error are returned If the error is not nil and the map is nil, an error was encountered before any containers were started If map is not nil, an error was encountered when starting one or more containers. The container ID is mapped to the error encountered. The error is set to ErrCtrExists If both error and the map are nil, all containers were started successfully

func (*Pod) Status 

func (p *Pod) Status() (map[string]define.ContainerStatus, error)

Status gets the status of all containers in the pod Returns a map of Container ID to Container Status

func (*Pod) Stop 

func (p *Pod) Stop(ctx context.Context, cleanup bool) (map[string]error, error)

Stop stops all containers within a pod without a timeout. It assumes -1 for a timeout.

func (*Pod) StopWithTimeout added in v1.0.0 

func (p *Pod) StopWithTimeout(ctx context.Context, cleanup bool, timeout int) (map[string]error, error)

StopWithTimeout stops all containers within a pod that are not already stopped Each container will use its own stop timeout Only running containers will be stopped. Paused, stopped, or created containers will be ignored. If cleanup is true, mounts and network namespaces will be cleaned up after the container is stopped. All containers are stopped independently. An error stopping one container will not prevent other containers being stopped. An error and a map[string]error are returned If the error is not nil and the map is nil, an error was encountered before any containers were stopped If map is not nil, an error was encountered when stopping one or more containers. The container ID is mapped to the error encountered. The error is set to ErrCtrExists If both error and the map are nil, all containers were stopped without error

func (*Pod) Unpause added in v0.7.4 

func (p *Pod) Unpause() (map[string]error, error)

Unpause unpauses all containers within a pod that are running. Only paused containers will be unpaused. Running, stopped, or created containers will be ignored. All containers are unpaused independently. An error unpausing one container will not prevent other containers being unpaused. An error and a map[string]error are returned If the error is not nil and the map is nil, an error was encountered before any containers were unpaused If map is not nil, an error was encountered when unpausing one or more containers. The container ID is mapped to the error encountered. The error is set to ErrCtrExists If both error and the map are nil, all containers were unpaused without error

type PodConfig 

type PodConfig struct {
	ID   string `json:"id"`
	Name string `json:"name"`
	// Namespace the pod is in
	Namespace string `json:"namespace,omitempty"`

	Hostname string `json:"hostname,omitempty"`

	// Labels contains labels applied to the pod
	Labels map[string]string `json:"labels"`
	// CgroupParent contains the pod's CGroup parent
	CgroupParent string `json:"cgroupParent"`
	// UsePodCgroup indicates whether the pod will create its own CGroup and
	// join containers to it.
	// If true, all containers joined to the pod will use the pod cgroup as
	// their cgroup parent, and cannot set a different cgroup parent
	UsePodCgroup bool `json:"sharesCgroup,omitempty"`

	// The following UsePod{kernelNamespace} indicate whether the containers
	// in the pod will inherit the namespace from the first container in the pod.
	UsePodPID   bool `json:"sharesPid,omitempty"`
	UsePodIPC   bool `json:"sharesIpc,omitempty"`
	UsePodNet   bool `json:"sharesNet,omitempty"`
	UsePodMount bool `json:"sharesMnt,omitempty"`
	UsePodUser  bool `json:"sharesUser,omitempty"`
	UsePodUTS   bool `json:"sharesUts,omitempty"`

	InfraContainer *InfraContainerConfig `json:"infraConfig"`

	// Time pod was created
	CreatedTime time.Time `json:"created"`

	// ID of the pod's lock
	LockID uint32 `json:"lockID"`
}

PodConfig represents a pod's static configuration

type PodContainerInfo added in v0.8.2 

type PodContainerInfo struct {
	ID    string `json:"id"`
	State string `json:"state"`
}

PodContainerInfo keeps information on a container in a pod

type PodContainerStats added in v0.8.3 

type PodContainerStats struct {
	Pod            *Pod
	ContainerStats map[string]*ContainerStats
}

PodContainerStats is an organization struct for pods and their containers

type PodCreateOption 

type PodCreateOption func(*Pod) error

A PodCreateOption is a functional option which alters the Pod created by NewPod

func WithInfraContainer added in v0.8.4 

func WithInfraContainer() PodCreateOption

WithInfraContainer tells the pod to create a pause container

func WithInfraContainerPorts added in v0.12.1 

func WithInfraContainerPorts(bindings []ocicni.PortMapping) PodCreateOption

WithInfraContainerPorts tells the pod to add port bindings to the pause container

func WithPodCgroupParent added in v0.5.3 

func WithPodCgroupParent(path string) PodCreateOption

WithPodCgroupParent sets the Cgroup Parent of the pod.

func WithPodCgroups added in v0.5.3 

func WithPodCgroups() PodCreateOption

WithPodCgroups tells containers in this pod to use the cgroup created for this pod. This can still be overridden at the container level by explicitly specifying a CGroup parent.

func WithPodDNS added in v1.8.1 

func WithPodDNS(dnsServer []string) PodCreateOption

WithPodDNS sets the DNS Servers for a pod.

func WithPodDNSOption added in v1.8.1 

func WithPodDNSOption(dnsOption []string) PodCreateOption

WithPodDNSOption sets DNS Options for a pod.

func WithPodDNSSearch added in v1.8.1 

func WithPodDNSSearch(dnsSearch []string) PodCreateOption

WithPodDNSSearch sets the DNS Search domains for a pod.

func WithPodHostNetwork added in v1.8.1 

func WithPodHostNetwork() PodCreateOption

WithPodHostNetwork tells the pod to use the host's network namespace.

func WithPodHostname added in v1.6.0 

func WithPodHostname(hostname string) PodCreateOption

WithPodHostname sets the hostname of the pod.

func WithPodHosts added in v1.8.1 

func WithPodHosts(hosts []string) PodCreateOption

WithPodHosts adds additional entries to the pod's /etc/hosts

func WithPodIPC added in v0.8.4 

func WithPodIPC() PodCreateOption

WithPodIPC tells containers in this pod to use the ipc namespace created for this pod. Containers in a pod will inherit the kernel namespaces from the first container added.

func WithPodLabels 

func WithPodLabels(labels map[string]string) PodCreateOption

WithPodLabels sets the labels of a pod.

func WithPodMount added in v0.8.4 

func WithPodMount() PodCreateOption

WithPodMount tells containers in this pod to use the mount namespace created for this pod. Containers in a pod will inherit the kernel namespaces from the first container added. TODO implement WithMountNSFrom, so WithMountNsFromPod functions properly Then this option can be added on the pod level

func WithPodName 

func WithPodName(name string) PodCreateOption

WithPodName sets the name of the pod.

func WithPodNamespace added in v0.7.4 

func WithPodNamespace(ns string) PodCreateOption

WithPodNamespace sets the namespace for the created pod. Namespaces are used to create separate views of Podman's state - runtimes can join a specific namespace and see only containers and pods in that namespace. Empty string namespaces are allowed, and correspond to a lack of namespace. Containers must belong to the same namespace as the pod they join.

func WithPodNet added in v0.8.4 

func WithPodNet() PodCreateOption

WithPodNet tells containers in this pod to use the network namespace created for this pod. Containers in a pod will inherit the kernel namespaces from the first container added.

func WithPodNetworks added in v1.8.1 

func WithPodNetworks(networks []string) PodCreateOption

WithPodNetworks sets additional CNI networks for the pod to join.

func WithPodPID added in v0.8.4 

func WithPodPID() PodCreateOption

WithPodPID tells containers in this pod to use the pid namespace created for this pod. Containers in a pod will inherit the kernel namespaces from the first container added.

func WithPodStaticIP added in v1.8.1 

func WithPodStaticIP(ip net.IP) PodCreateOption

WithPodStaticIP sets a static IP for the pod.

func WithPodStaticMAC added in v1.8.1 

func WithPodStaticMAC(mac net.HardwareAddr) PodCreateOption

WithPodStaticMAC sets a static MAC address for the pod.

func WithPodUTS added in v0.8.4 

func WithPodUTS() PodCreateOption

WithPodUTS tells containers in this pod to use the uts namespace created for this pod. Containers in a pod will inherit the kernel namespaces from the first container added.

func WithPodUseImageHosts added in v1.8.1 

func WithPodUseImageHosts() PodCreateOption

WithPodUseImageHosts tells the pod not to create /etc/hosts and instead to use the one provided by the image.

func WithPodUseImageResolvConf added in v1.8.1 

func WithPodUseImageResolvConf() PodCreateOption

WithPodUseImageResolvConf sets a pod to use an image's resolv.conf and not create its own.

func WithPodUser added in v0.8.4 

func WithPodUser() PodCreateOption

WithPodUser tells containers in this pod to use the user namespace created for this pod. Containers in a pod will inherit the kernel namespaces from the first container added. TODO implement WithUserNSFrom, so WithUserNsFromPod functions properly Then this option can be added on the pod level

type PodFilter 

type PodFilter func(*Pod) bool

PodFilter is a function to determine whether a pod is included in command output. Pods to be outputted are tested using the function. A true return will include the pod, a false return will exclude it.

type PodInspect added in v0.8.2 

type PodInspect struct {
	Config     *PodConfig
	State      *PodInspectState
	Containers []PodContainerInfo
}

PodInspect represents the data we want to display for podman pod inspect

type PodInspectState added in v0.8.3 

type PodInspectState struct {
	CgroupPath       string `json:"cgroupPath"`
	InfraContainerID string `json:"infraContainerID"`
	Status           string `json:"status"`
}

PodInspectState contains inspect data on the pod's state

type Runtime 

type Runtime struct {
	// contains filtered or unexported fields
}

Runtime is the core libpod runtime

func NewRuntime 

func NewRuntime(ctx context.Context, options ...RuntimeOption) (runtime *Runtime, err error)

NewRuntime creates a new container runtime Options can be passed to override the default configuration for the runtime

func NewRuntimeFromConfig added in v0.3.2 

func NewRuntimeFromConfig(ctx context.Context, userConfig *config.Config, options ...RuntimeOption) (runtime *Runtime, err error)

NewRuntimeFromConfig creates a new container runtime using the given configuration file for its default configuration. Passed RuntimeOption functions can be used to mutate this configuration further. An error will be returned if the configuration file at the given path does not exist or cannot be loaded

func (*Runtime) ApplyDiffTarStream added in v1.5.0 

func (r *Runtime) ApplyDiffTarStream(to string, diff io.Reader) error

ApplyDiffTarStream applies the changes stored in 'diff' to the layer 'to'

func (*Runtime) Build added in v0.4.4 

func (r *Runtime) Build(ctx context.Context, options imagebuildah.BuildOptions, dockerfiles ...string) (string, reference.Canonical, error)

Build adds the runtime to the imagebuildah call

func (*Runtime) DeferredShutdown added in v1.5.0 

func (r *Runtime) DeferredShutdown(force bool)

DeferredShutdown shuts down the runtime without exposing any errors. This is only meant to be used when the runtime is being shutdown within a defer statement; else use Shutdown

func (*Runtime) Events added in v1.2.0 

func (r *Runtime) Events(options events.ReadOptions) error

Events is a wrapper function for everyone to begin tailing the events log with options

func (*Runtime) EvictContainer added in v1.6.2 

func (r *Runtime) EvictContainer(ctx context.Context, idOrName string, removeVolume bool) (string, error)

EvictContainer removes the given container partial or full ID or name, and returns the full ID of the evicted container and any error encountered. It should be used to remove a container when obtaining a Container struct pointer has failed. Running container will not be stopped. If removeVolume is specified, named volumes used by the container will be removed also if and only if the container is the sole user.

func (*Runtime) GetAllContainers 

func (r *Runtime) GetAllContainers() ([]*Container, error)

GetAllContainers is a helper function for GetContainers

func (*Runtime) GetAllPods added in v0.7.2 

func (r *Runtime) GetAllPods() ([]*Pod, error)

GetAllPods retrieves all pods

func (*Runtime) GetAllVolumes added in v0.12.1 

func (r *Runtime) GetAllVolumes() ([]*Volume, error)

GetAllVolumes retrieves all the volumes

func (*Runtime) GetConfig 

func (r *Runtime) GetConfig() (*config.Config, error)

GetConfig returns a copy of the configuration used by the runtime

func (*Runtime) GetContainer 

func (r *Runtime) GetContainer(id string) (*Container, error)

GetContainer retrieves a container by its ID

func (*Runtime) GetContainers 

func (r *Runtime) GetContainers(filters ...ContainerFilter) ([]*Container, error)

GetContainers retrieves all containers from the state Filters can be provided which will determine what containers are included in the output. Multiple filters are handled by ANDing their output, so only containers matching all filters are returned

func (*Runtime) GetContainersByList 

func (r *Runtime) GetContainersByList(containers []string) ([]*Container, error)

GetContainersByList is a helper function for GetContainers which takes a []string of container IDs or names

func (*Runtime) GetDiff 

func (r *Runtime) GetDiff(from, to string) ([]archive.Change, error)

GetDiff returns the differences between the two images, layers, or containers

func (*Runtime) GetEvents added in v1.5.0 

func (r *Runtime) GetEvents(filters []string) ([]*events.Event, error)

GetEvents reads the event log and returns events based on input filters

func (*Runtime) GetExecSessionContainer added in v1.9.0 

func (r *Runtime) GetExecSessionContainer(id string) (*Container, error)

GetExecSessionContainer gets the container that a given exec session ID is attached to.

func (*Runtime) GetHostDistributionInfo added in v0.10.1 

func (r *Runtime) GetHostDistributionInfo() define.DistributionInfo

GetHostDistributionInfo returns a map containing the host's distribution and version

func (*Runtime) GetLastContainerEvent added in v1.5.0 

func (r *Runtime) GetLastContainerEvent(nameOrID string, containerEvent events.Status) (*events.Event, error)

GetLastContainerEvent takes a container name or ID and an event status and returns the last occurrence of the container event

func (*Runtime) GetLatestContainer 

func (r *Runtime) GetLatestContainer() (*Container, error)

GetLatestContainer returns a container object of the latest created container.

func (*Runtime) GetLatestPod added in v0.7.2 

func (r *Runtime) GetLatestPod() (*Pod, error)

GetLatestPod returns a pod object of the latest created pod.

func (*Runtime) GetOCIRuntimePath added in v1.0.0 

func (r *Runtime) GetOCIRuntimePath() string

GetOCIRuntimePath retrieves the path of the default OCI runtime.

func (*Runtime) GetPod 

func (r *Runtime) GetPod(id string) (*Pod, error)

GetPod retrieves a pod by its ID

func (*Runtime) GetRunningContainers 

func (r *Runtime) GetRunningContainers() ([]*Container, error)

GetRunningContainers is a helper function for GetContainers

func (*Runtime) GetRunningPods added in v0.8.3 

func (r *Runtime) GetRunningPods() ([]*Pod, error)

GetRunningPods returns an array of running pods

func (*Runtime) GetVolume added in v0.12.1 

func (r *Runtime) GetVolume(name string) (*Volume, error)

GetVolume retrieves a volume given its full name.

func (*Runtime) HasContainer 

func (r *Runtime) HasContainer(id string) (bool, error)

HasContainer checks if a container with the given ID is present

func (*Runtime) HasPod 

func (r *Runtime) HasPod(id string) (bool, error)

HasPod checks to see if a pod with the given ID exists

func (*Runtime) HasVolume added in v0.12.1 

func (r *Runtime) HasVolume(name string) (bool, error)

HasVolume checks to see if a volume with the given name exists

func (*Runtime) HealthCheck added in v1.2.0 

func (r *Runtime) HealthCheck(name string) (HealthCheckStatus, error)

HealthCheck verifies the state and validity of the healthcheck configuration on the container and then executes the healthcheck

func (*Runtime) ImageRuntime added in v0.3.4 

func (r *Runtime) ImageRuntime() *image.Runtime

ImageRuntime returns the imageruntime for image operations. If WithNoStore() was used, no image runtime will be available, and this function will return nil.

func (*Runtime) Import added in v1.1.0 

func (r *Runtime) Import(ctx context.Context, source string, reference string, changes []string, history string, quiet bool) (string, error)

Import is called as an intermediary to the image library Import

func (*Runtime) Info 

func (r *Runtime) Info() (*define.Info, error)

Info returns the store and host information

func (*Runtime) ListStorageContainers added in v1.0.4 

func (r *Runtime) ListStorageContainers() ([]*StorageContainer, error)

ListStorageContainers lists all containers visible to c/storage.

func (*Runtime) LoadImage added in v1.1.0 

func (r *Runtime) LoadImage(ctx context.Context, name, inputFile string, writer io.Writer, signaturePolicy string) (string, error)

LoadImage loads a container image into local storage

func (*Runtime) Log added in v1.2.0 

func (r *Runtime) Log(containers []*Container, options *logs.LogOptions, logChannel chan *logs.LogLine) error

Log is a runtime function that can read one or more container logs.

func (*Runtime) LookupContainer 

func (r *Runtime) LookupContainer(idOrName string) (*Container, error)

LookupContainer looks up a container by its name or a partial ID If a partial ID is not unique, an error will be returned

func (*Runtime) LookupPod 

func (r *Runtime) LookupPod(idOrName string) (*Pod, error)

LookupPod retrieves a pod by its name or a partial ID If a partial ID is not unique, an error will be returned

func (*Runtime) LookupVolume added in v1.6.0 

func (r *Runtime) LookupVolume(name string) (*Volume, error)

LookupVolume retrieves a volume by unambiguous partial name.

func (*Runtime) NewContainer 

func (r *Runtime) NewContainer(ctx context.Context, rSpec *spec.Spec, options ...CtrCreateOption) (c *Container, err error)

NewContainer creates a new container from a given OCI config.

func (*Runtime) NewPod 

func (r *Runtime) NewPod(ctx context.Context, options ...PodCreateOption) (_ *Pod, deferredErr error)

NewPod makes a new, empty pod

func (*Runtime) NewVolume added in v0.12.1 

func (r *Runtime) NewVolume(ctx context.Context, options ...VolumeCreateOption) (*Volume, error)

NewVolume creates a new empty volume

func (*Runtime) Pods 

func (r *Runtime) Pods(filters ...PodFilter) ([]*Pod, error)

Pods retrieves all pods Filters can be provided which will determine which pods are included in the output. Multiple filters are handled by ANDing their output, so only pods matching all filters are returned

func (*Runtime) PruneContainers added in v1.8.0 

func (r *Runtime) PruneContainers(filterFuncs []ContainerFilter) (map[string]int64, map[string]error, error)

PruneContainers removes stopped and exited containers from localstorage. A set of optional filters can be provided to be more granular.

func (*Runtime) PrunePods added in v1.8.0 

func (r *Runtime) PrunePods() (map[string]error, error)

PrunePods removes unused pods and their containers from local storage. If force is given, then running pods are also included in the pruning.

func (*Runtime) PruneVolumes added in v1.1.0 

func (r *Runtime) PruneVolumes(ctx context.Context) (map[string]error, error)

PruneVolumes removes unused volumes from the system

func (*Runtime) RemoveContainer 

func (r *Runtime) RemoveContainer(ctx context.Context, c *Container, force bool, removeVolume bool) error

RemoveContainer removes the given container If force is specified, the container will be stopped first If removeVolume is specified, named volumes used by the container will be removed also if and only if the container is the sole user Otherwise, RemoveContainer will return an error if the container is running

func (*Runtime) RemoveImage 

func (r *Runtime) RemoveImage(ctx context.Context, img *image.Image, force bool) (*image.ImageDeleteResponse, error)

RemoveImage deletes an image from local storage Images being used by running containers can only be removed if force=true

func (*Runtime) RemovePod 

func (r *Runtime) RemovePod(ctx context.Context, p *Pod, removeCtrs, force bool) error

RemovePod removes a pod If removeCtrs is specified, containers will be removed Otherwise, a pod that is not empty will return an error and not be removed If force is specified with removeCtrs, all containers will be stopped before being removed Otherwise, the pod will not be removed if any containers are running

func (*Runtime) RemoveStorageContainer added in v1.0.4 

func (r *Runtime) RemoveStorageContainer(idOrName string, force bool) error

RemoveStorageContainer removes a container from c/storage. The container WILL NOT be removed if it exists in libpod. Accepts ID or full name of container. If force is set, the container will be unmounted first to ensure removal.

func (*Runtime) RemoveVolume added in v0.12.1 

func (r *Runtime) RemoveVolume(ctx context.Context, v *Volume, force bool) error

RemoveVolume removes a volumes

func (*Runtime) Reset added in v1.7.0 

func (r *Runtime) Reset(ctx context.Context) error

Reset removes all storage

func (*Runtime) RestoreContainer added in v1.4.0 

func (r *Runtime) RestoreContainer(ctx context.Context, rSpec *spec.Spec, config *ContainerConfig) (c *Container, err error)

RestoreContainer re-creates a container from an imported checkpoint

func (*Runtime) Shutdown 

func (r *Runtime) Shutdown(force bool) error

Shutdown shuts down the runtime and associated containers and storage If force is true, containers and mounted storage will be shut down before cleaning up; if force is false, an error will be returned if there are still containers running or mounted

func (*Runtime) StorageConfig added in v1.9.0 

func (r *Runtime) StorageConfig() storage.StoreOptions

StorageConfig retrieves the storage options for the container runtime

func (*Runtime) SystemContext added in v1.0.0 

func (r *Runtime) SystemContext() *types.SystemContext

SystemContext returns the imagecontext

func (*Runtime) Volumes added in v0.12.1 

func (r *Runtime) Volumes(filters ...VolumeFilter) ([]*Volume, error)

Volumes retrieves all volumes Filters can be provided which will determine which volumes are included in the output. Multiple filters are handled by ANDing their output, so only volumes matching all filters are returned

func (*Runtime) WithPod 

func (r *Runtime) WithPod(pod *Pod) CtrCreateOption

WithPod adds the container to a pod. Containers which join a pod can only join the Linux namespaces of other containers in the same pod. Containers can only join pods in the same libpod namespace.

type RuntimeContainerMetadata 

type RuntimeContainerMetadata struct {
	// The provided name and the ID of the image that was used to
	// instantiate the container.
	ImageName string `json:"image-name"` // Applicable to both PodSandboxes and Containers
	ImageID   string `json:"image-id"`   // Applicable to both PodSandboxes and Containers
	// The container's name, which for an infrastructure container is usually PodName + "-infra".
	ContainerName string `json:"name"`                 // Applicable to both PodSandboxes and Containers, mandatory
	CreatedAt     int64  `json:"created-at"`           // Applicable to both PodSandboxes and Containers
	MountLabel    string `json:"mountlabel,omitempty"` // Applicable to both PodSandboxes and Containers
}

RuntimeContainerMetadata is the structure that we encode as JSON and store in the metadata field of storage.Container objects. It is used for specifying attributes containers when they are being created, and allows a container's MountLabel, and possibly other values, to be modified in one read/write cycle via calls to storageService.ContainerMetadata, RuntimeContainerMetadata.SetMountLabel, and storageService.SetContainerMetadata.

func (*RuntimeContainerMetadata) SetMountLabel 

func (metadata *RuntimeContainerMetadata) SetMountLabel(mountLabel string)

SetMountLabel updates the mount label held by a RuntimeContainerMetadata object.

type RuntimeOption 

type RuntimeOption func(*Runtime) error

A RuntimeOption is a functional option which alters the Runtime created by NewRuntime

func WithCNIConfigDir 

func WithCNIConfigDir(dir string) RuntimeOption

WithCNIConfigDir sets the CNI configuration directory.

func WithCNIPluginDir 

func WithCNIPluginDir(dir string) RuntimeOption

WithCNIPluginDir sets the CNI plugins directory.

func WithCgroupManager 

func WithCgroupManager(manager string) RuntimeOption

WithCgroupManager specifies the manager implementation name which is used to handle cgroups for containers. Current valid values are "cgroupfs" and "systemd".

func WithConmonEnv 

func WithConmonEnv(environment []string) RuntimeOption

WithConmonEnv specifies the environment variable list for the conmon process.

func WithConmonPath 

func WithConmonPath(path string) RuntimeOption

WithConmonPath specifies the path to the conmon binary which manages the runtime.

func WithDefaultInfraCommand added in v0.8.4 

func WithDefaultInfraCommand(cmd string) RuntimeOption

WithDefaultInfraCommand sets the command to run on pause container start up.

func WithDefaultInfraImage added in v0.8.4 

func WithDefaultInfraImage(img string) RuntimeOption

WithDefaultInfraImage sets the infra image for libpod. An infra image is used for inter-container kernel namespace sharing within a pod. Typically, an infra container is lightweight and is there to reap zombie processes within its pid namespace.

func WithDefaultMountsFile added in v0.4.4 

func WithDefaultMountsFile(mountsFile string) RuntimeOption

WithDefaultMountsFile sets the file to look at for default mounts (mainly secrets). Note we are not saving this in the database as it is for testing purposes only.

func WithDefaultTransport added in v0.2.2 

func WithDefaultTransport(defaultTransport string) RuntimeOption

WithDefaultTransport sets the default transport for retrieving images.

func WithEnableSDNotify added in v1.6.0 

func WithEnableSDNotify() RuntimeOption

WithEnableSDNotify sets a runtime option so we know whether to disable socket/FD listening

func WithEventsLogger added in v1.5.0 

func WithEventsLogger(logger string) RuntimeOption

WithEventsLogger sets the events backend to use. Currently supported values are "file" for file backend and "journald" for journald backend.

func WithHooksDir added in v0.4.1 

func WithHooksDir(hooksDirs ...string) RuntimeOption

WithHooksDir sets the directories to look for OCI runtime hook configuration.

func WithMaxLogSize 

func WithMaxLogSize(limit int64) RuntimeOption

WithMaxLogSize sets the maximum size of container logs. Positive sizes are limits in bytes, -1 is unlimited.

func WithMigrate added in v1.3.0 

func WithMigrate() RuntimeOption

WithMigrate instructs libpod to migrate container configurations to account for changes between Engine versions. All running containers will be stopped during a migration, then restarted after the migration is complete.

func WithMigrateRuntime added in v1.6.2 

func WithMigrateRuntime(requestedRuntime string) RuntimeOption

WithMigrateRuntime instructs Engine to change the default OCI runtime on all containers during a migration. This is not used if `MigrateRuntime()` is not also passed. Engine makes no promises that your containers continue to work with the new runtime - migrations between dissimilar runtimes may well break things. Use with caution.

func WithNamespace added in v0.7.4 

func WithNamespace(ns string) RuntimeOption

WithNamespace sets the namespace for libpod. Namespaces are used to create scopes to separate containers and pods in the state. When namespace is set, libpod will only view containers and pods in the same namespace. All containers and pods created will default to the namespace set here. A namespace of "", the empty string, is equivalent to no namespace, and all containers and pods will be visible.

func WithNetworkCmdPath added in v1.2.0 

func WithNetworkCmdPath(path string) RuntimeOption

WithNetworkCmdPath specifies the path to the slirp4netns binary which manages the runtime.

func WithNoPivotRoot 

func WithNoPivotRoot() RuntimeOption

WithNoPivotRoot sets the runtime to use MS_MOVE instead of PIVOT_ROOT when starting containers.

func WithNoStore added in v1.5.0 

func WithNoStore() RuntimeOption

WithNoStore sets a bool on the runtime that we do not need any containers storage.

func WithOCIRuntime 

func WithOCIRuntime(runtime string) RuntimeOption

WithOCIRuntime specifies an OCI runtime to use for running containers.

func WithRenumber added in v1.1.0 

func WithRenumber() RuntimeOption

WithRenumber instructs libpod to perform a lock renumbering while initializing. This will handle migrations from early versions of libpod with file locks to newer versions with SHM locking, as well as changes in the number of configured locks.

func WithSignaturePolicy 

func WithSignaturePolicy(path string) RuntimeOption

WithSignaturePolicy specifies the path of a file which decides how trust is managed for images we've pulled. If this is not specified, the system default configuration will be used instead.

func WithStateType 

func WithStateType(storeType config.RuntimeStateStore) RuntimeOption

WithStateType sets the backing state implementation for libpod. Please note that information is not portable between backing states. As such, if this differs between two libpods running on the same system, they will not share containers, and unspecified behavior may occur.

func WithStaticDir 

func WithStaticDir(dir string) RuntimeOption

WithStaticDir sets the directory that static runtime files which persist across reboots will be stored.

func WithStorageConfig 

func WithStorageConfig(config storage.StoreOptions) RuntimeOption

WithStorageConfig uses the given configuration to set up container storage. If this is not specified, the system default configuration will be used instead.

func WithTmpDir 

func WithTmpDir(dir string) RuntimeOption

WithTmpDir sets the directory that temporary runtime files which are not expected to survive across reboots will be stored. This should be located on a tmpfs mount (/tmp or /var/run for example).

func WithVolumePath added in v0.12.1 

func WithVolumePath(volPath string) RuntimeOption

WithVolumePath sets the path under which all named volumes should be created. The path changes based on whether the user is running as root or not.

type State 

type State interface {
	// Close performs any pre-exit cleanup (e.g. closing database
	// connections) that may be required
	Close() error

	// Refresh clears container and pod states after a reboot
	Refresh() error

	// GetDBConfig retrieves several paths configured within the database
	// when it was created - namely, Libpod root and tmp dirs, c/storage
	// root and tmp dirs, and c/storage graph driver.
	// This is not implemented by the in-memory state, as it has no need to
	// validate runtime configuration.
	GetDBConfig() (*DBConfig, error)

	// ValidateDBConfig validates the config in the given Runtime struct
	// against paths stored in the configured database.
	// Libpod root and tmp dirs and c/storage root and tmp dirs and graph
	// driver are validated.
	// This is not implemented by the in-memory state, as it has no need to
	// validate runtime configuration that may change over multiple runs of
	// the program.
	ValidateDBConfig(runtime *Runtime) error

	// SetNamespace() sets the namespace for the store, and will determine
	// what containers are retrieved with container and pod retrieval calls.
	// A namespace of "", the empty string, acts as no namespace, and
	// containers and pods in all namespaces will be returned.
	SetNamespace(ns string) error

	// Return a container from the database from its full ID.
	// If the container is not in the set namespace, an error will be
	// returned.
	Container(id string) (*Container, error)
	// Return a container ID from the database by full or partial ID or full
	// name.
	LookupContainerID(idOrName string) (string, error)
	// Return a container from the database by full or partial ID or full
	// name.
	// Containers not in the set namespace will be ignored.
	LookupContainer(idOrName string) (*Container, error)
	// Check if a container with the given full ID exists in the database.
	// If the container exists but is not in the set namespace, false will
	// be returned.
	HasContainer(id string) (bool, error)
	// Adds container to state.
	// The container cannot be part of a pod.
	// The container must have globally unique name and ID - pod names and
	// IDs also conflict with container names and IDs.
	// The container must be in the set namespace if a namespace has been
	// set.
	// All containers this container depends on must be part of the same
	// namespace and must not be joined to a pod.
	AddContainer(ctr *Container) error
	// Removes container from state.
	// Containers that are part of pods must use RemoveContainerFromPod.
	// The container must be part of the set namespace.
	// All dependencies must be removed first.
	// All exec sessions referencing the container must be removed first.
	RemoveContainer(ctr *Container) error
	// UpdateContainer updates a container's state from the backing store.
	// The container must be part of the set namespace.
	UpdateContainer(ctr *Container) error
	// SaveContainer saves a container's current state to the backing store.
	// The container must be part of the set namespace.
	SaveContainer(ctr *Container) error
	// ContainerInUse checks if other containers depend upon a given
	// container.
	// It returns a slice of the IDs of containers which depend on the given
	// container. If the slice is empty, no container depend on the given
	// container.
	// A container cannot be removed if other containers depend on it.
	// The container being checked must be part of the set namespace.
	ContainerInUse(ctr *Container) ([]string, error)
	// Retrieves all containers presently in state.
	// If a namespace is set, only containers within the namespace will be
	// returned.
	AllContainers() ([]*Container, error)

	// Return a container config from the database by full ID
	GetContainerConfig(id string) (*ContainerConfig, error)

	// Add creates a reference to an exec session in the database.
	// The container the exec session is attached to will be recorded.
	// The container state will not be modified.
	// The actual exec session itself is part of the container's state.
	// We assume higher-level callers will add the session by saving the
	// container's state before calling this. This only ensures that the ID
	// of the exec session is associated with the ID of the container.
	// Implementations may, but are not required to, verify that the state
	// of the given container has an exec session with the ID given.
	AddExecSession(ctr *Container, session *ExecSession) error
	// Get retrieves the container a given exec session is attached to.
	GetExecSession(id string) (string, error)
	// Remove a reference to an exec session from the database.
	// This will not modify container state to remove the exec session there
	// and instead only removes the session ID -> container ID reference
	// added by AddExecSession.
	RemoveExecSession(session *ExecSession) error
	// Get the IDs of all exec sessions attached to a given container.
	GetContainerExecSessions(ctr *Container) ([]string, error)
	// Remove all exec sessions for a single container.
	// Usually used as part of removing the container.
	// As with RemoveExecSession, container state will not be modified.
	RemoveContainerExecSessions(ctr *Container) error

	// PLEASE READ FULL DESCRIPTION BEFORE USING.
	// Rewrite a container's configuration.
	// This function breaks libpod's normal prohibition on a read-only
	// configuration, and as such should be used EXTREMELY SPARINGLY and
	// only in very specific circumstances.
	// Specifically, it is ONLY safe to use thing function to make changes
	// that result in a functionally identical configuration (migrating to
	// newer, but identical, configuration fields), or during libpod init
	// WHILE HOLDING THE ALIVE LOCK (to prevent other libpod instances from
	// being initialized).
	// Most things in config can be changed by this, but container ID and
	// name ABSOLUTELY CANNOT BE ALTERED. If you do so, there is a high
	// potential for database corruption.
	// There are a lot of capital letters and conditions here, but the short
	// answer is this: use this only very sparingly, and only if you really
	// know what you're doing.
	RewriteContainerConfig(ctr *Container, newCfg *ContainerConfig) error
	// PLEASE READ THE DESCRIPTION FOR RewriteContainerConfig BEFORE USING.
	// This function is identical to RewriteContainerConfig, save for the
	// fact that it is used with pods instead.
	// It is subject to the same conditions as RewriteContainerConfig.
	// Please do not use this unless you know what you're doing.
	RewritePodConfig(pod *Pod, newCfg *PodConfig) error
	// PLEASE READ THE DESCRIPTION FOR RewriteContainerConfig BEFORE USING.
	// This function is identical to RewriteContainerConfig, save for the
	// fact that it is used with volumes instead.
	// It is subject to the same conditions as RewriteContainerConfig.
	// The exception is that volumes do not have IDs, so only volume name
	// cannot be altered.
	// Please do not use this unless you know what you're doing.
	RewriteVolumeConfig(volume *Volume, newCfg *VolumeConfig) error

	// Accepts full ID of pod.
	// If the pod given is not in the set namespace, an error will be
	// returned.
	Pod(id string) (*Pod, error)
	// Accepts full or partial IDs (as long as they are unique) and names.
	// Pods not in the set namespace are ignored.
	LookupPod(idOrName string) (*Pod, error)
	// Checks if a pod with the given ID is present in the state.
	// If the given pod is not in the set namespace, false is returned.
	HasPod(id string) (bool, error)
	// Check if a pod has a container with the given ID.
	// The pod must be part of the set namespace.
	PodHasContainer(pod *Pod, ctrID string) (bool, error)
	// Get the IDs of all containers in a pod.
	// The pod must be part of the set namespace.
	PodContainersByID(pod *Pod) ([]string, error)
	// Get all the containers in a pod.
	// The pod must be part of the set namespace.
	PodContainers(pod *Pod) ([]*Container, error)
	// Adds pod to state.
	// The pod must be part of the set namespace.
	// The pod's name and ID must be globally unique.
	AddPod(pod *Pod) error
	// Removes pod from state.
	// Only empty pods can be removed from the state.
	// The pod must be part of the set namespace.
	RemovePod(pod *Pod) error
	// Remove all containers from a pod.
	// Used to simultaneously remove containers that might otherwise have
	// dependency issues.
	// Will fail if a dependency outside the pod is encountered.
	// The pod must be part of the set namespace.
	RemovePodContainers(pod *Pod) error
	// AddContainerToPod adds a container to an existing pod.
	// The container given will be added to the state and the pod.
	// The container and its dependencies must be part of the given pod,
	// and the given pod's namespace.
	// The pod must be part of the set namespace.
	// The pod must already exist in the state.
	// The container's name and ID must be globally unique.
	AddContainerToPod(pod *Pod, ctr *Container) error
	// RemoveContainerFromPod removes a container from an existing pod.
	// The container will also be removed from the state.
	// The container must be in the given pod, and the pod must be in the
	// set namespace.
	RemoveContainerFromPod(pod *Pod, ctr *Container) error
	// UpdatePod updates a pod's state from the database.
	// The pod must be in the set namespace.
	UpdatePod(pod *Pod) error
	// SavePod saves a pod's state to the database.
	// The pod must be in the set namespace.
	SavePod(pod *Pod) error
	// Retrieves all pods presently in state.
	// If a namespace has been set, only pods in that namespace will be
	// returned.
	AllPods() ([]*Pod, error)

	// Volume accepts full name of volume
	// If the volume doesn't exist, an error will be returned
	Volume(volName string) (*Volume, error)
	// LookupVolume accepts an unambiguous partial name or full name of a
	// volume. Ambiguous names will result in an error.
	LookupVolume(name string) (*Volume, error)
	// HasVolume returns true if volName exists in the state,
	// otherwise it returns false
	HasVolume(volName string) (bool, error)
	// VolumeInUse goes through the container dependencies of a volume
	// and checks if the volume is being used by any container. If it is
	// a slice of container IDs using the volume is returned
	VolumeInUse(volume *Volume) ([]string, error)
	// AddVolume adds the specified volume to state. The volume's name
	// must be unique within the list of existing volumes
	AddVolume(volume *Volume) error
	// RemoveVolume removes the specified volume.
	// Only volumes that have no container dependencies can be removed
	RemoveVolume(volume *Volume) error
	// UpdateVolume updates the volume's state from the database.
	UpdateVolume(volume *Volume) error
	// SaveVolume saves a volume's state to the database.
	SaveVolume(volume *Volume) error
	// AllVolumes returns all the volumes available in the state
	AllVolumes() ([]*Volume, error)
}

State is a storage backend for libpod's current state. A State is only initialized once per instance of libpod. As such, initialization methods for State implementations may safely assume they will be run as a singleton. For all container and pod retrieval methods, a State must retrieve the Configuration struct of the container or pod and include it in the returned struct. The State of the container or pod may optionally be included as well, but this is not a requirement. As such, all containers and pods must be synced with the database via the UpdateContainer and UpdatePod calls before any state-specific information is retrieved after they are pulled from the database. Generally speaking, the syncContainer() call should be run at the beginning of all API operations, which will silently handle this.

func NewBoltState 

func NewBoltState(path string, runtime *Runtime) (State, error)

NewBoltState creates a new bolt-backed state database

func NewInMemoryState 

func NewInMemoryState() (State, error)

NewInMemoryState initializes a new, empty in-memory state

type StorageContainer added in v1.0.4 

type StorageContainer struct {
	ID              string
	Names           []string
	Image           string
	CreateTime      time.Time
	PresentInLibpod bool
}

StorageContainer represents a container present in c/storage but not in libpod.

type Volume added in v0.12.1 

type Volume struct {
	// contains filtered or unexported fields
}

Volume is a libpod named volume. Named volumes may be shared by multiple containers, and may be created using more complex options than normal bind mounts. They may be backed by a mounted filesystem on the host.

func (*Volume) Anonymous added in v1.8.0 

func (v *Volume) Anonymous() bool

Anonymous returns whether this volume is anonymous. Anonymous volumes were created with a container, and will be removed when that container is removed.

func (*Volume) Config added in v1.8.1 

func (v *Volume) Config() (*VolumeConfig, error)

Config returns the volume's configuration.

func (*Volume) CreatedTime added in v1.6.0 

func (v *Volume) CreatedTime() time.Time

CreatedTime returns the time the volume was created at. It was not tracked for some time, so older volumes may not contain one.

func (*Volume) Driver added in v0.12.1 

func (v *Volume) Driver() string

Driver retrieves the volume's driver.

func (*Volume) GID added in v1.6.0 

func (v *Volume) GID() int

GID returns the GID the volume will be created as.

func (*Volume) Inspect added in v1.6.0 

func (v *Volume) Inspect() (*InspectVolumeData, error)

Inspect provides detailed information about the configuration of the given volume.

func (*Volume) Labels added in v0.12.1 

func (v *Volume) Labels() map[string]string

Labels returns the volume's labels

func (*Volume) MountPoint added in v0.12.1 

func (v *Volume) MountPoint() string

MountPoint returns the volume's mountpoint on the host

func (*Volume) Name added in v0.12.1 

func (v *Volume) Name() string

Name retrieves the volume's name

func (*Volume) Options added in v0.12.1 

func (v *Volume) Options() map[string]string

Options return the volume's options

func (*Volume) Scope added in v0.12.1 

func (v *Volume) Scope() string

Scope retrieves the volume's scope. Libpod does not implement volume scoping, and this is provided solely for Docker compatibility. It returns only "local".

func (*Volume) UID added in v1.6.0 

func (v *Volume) UID() int

UID returns the UID the volume will be created as.

type VolumeConfig added in v0.12.1 

type VolumeConfig struct {
	// Name of the volume.
	Name string `json:"name"`
	// ID of the volume's lock.
	LockID uint32 `json:"lockID"`
	// Labels for the volume.
	Labels map[string]string `json:"labels"`
	// The volume driver. Empty string or local does not activate a volume
	// driver, all other volumes will.
	Driver string `json:"volumeDriver"`
	// The location the volume is mounted at.
	MountPoint string `json:"mountPoint"`
	// Time the volume was created.
	CreatedTime time.Time `json:"createdAt,omitempty"`
	// Options to pass to the volume driver. For the local driver, this is
	// a list of mount options. For other drivers, they are passed to the
	// volume driver handling the volume.
	Options map[string]string `json:"volumeOptions,omitempty"`
	// Whether this volume is anonymous (will be removed on container exit)
	IsAnon bool `json:"isAnon"`
	// UID the volume will be created as.
	UID int `json:"uid"`
	// GID the volume will be created as.
	GID int `json:"gid"`
}

VolumeConfig holds the volume's immutable configuration.

type VolumeCreateOption added in v0.12.1 

type VolumeCreateOption func(*Volume) error

A VolumeCreateOption is a functional option which alters the Volume created by NewVolume

func WithVolumeDriver added in v0.12.1 

func WithVolumeDriver(driver string) VolumeCreateOption

WithVolumeDriver sets the volume's driver. It is presently not implemented, but will be supported in a future Podman release.

func WithVolumeGID added in v1.2.0 

func WithVolumeGID(gid int) VolumeCreateOption

WithVolumeGID sets the GID that the volume will be created as.

func WithVolumeLabels added in v0.12.1 

func WithVolumeLabels(labels map[string]string) VolumeCreateOption

WithVolumeLabels sets the labels of the volume.

func WithVolumeName added in v0.12.1 

func WithVolumeName(name string) VolumeCreateOption

WithVolumeName sets the name of the volume.

func WithVolumeOptions added in v0.12.1 

func WithVolumeOptions(options map[string]string) VolumeCreateOption

WithVolumeOptions sets the options of the volume. If the "local" driver has been selected, options will be validated. There are currently 3 valid options for the "local" driver - o, type, and device.

func WithVolumeUID added in v1.2.0 

func WithVolumeUID(uid int) VolumeCreateOption

WithVolumeUID sets the UID that the volume will be created as.

type VolumeFilter added in v0.12.1 

type VolumeFilter func(*Volume) bool

VolumeFilter is a function to determine whether a volume is included in command output. Volumes to be outputted are tested using the function. a true return will include the volume, a false return will exclude it.

type VolumeState added in v1.6.0 

type VolumeState struct {
	// MountCount is the number of times this volume has been requested to
	// be mounted.
	// It is incremented on mount() and decremented on unmount().
	// On incrementing from 0, the volume will be mounted on the host.
	// On decrementing to 0, the volume will be unmounted on the host.
	MountCount uint `json:"mountCount"`
	// NeedsCopyUp indicates that the next time the volume is mounted into
	// a container, the container will "copy up" the contents of the
	// mountpoint into the volume.
	// This should only be done once. As such, this is set at container
	// create time, then cleared after the copy up is done and never set
	// again.
	NeedsCopyUp bool `json:"notYetMounted,omitempty"`
}

VolumeState holds the volume's mutable state. Volumes are not guaranteed to have a state. Only volumes using the Local driver that have mount options set will create a state.

Source Files

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Directories

Path Synopsis
file
shm
reversereader

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