daemon

package
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Published: Apr 1, 2015 License: Apache-2.0 Imports: 85 Imported by: 0

README

This directory contains code pertaining to running containers and storing images

Code pertaining to running containers:

  • execdriver
  • networkdriver

Code pertaining to storing images:

  • graphdriver

Documentation

Index

Constants

View Source
const DefaultPathEnv = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

Variables

View Source
var (
	ErrNotATTY               = errors.New("The PTY is not a file")
	ErrNoTTY                 = errors.New("No PTY found")
	ErrContainerStart        = errors.New("The container failed to start. Unknown error")
	ErrContainerStartTimeout = errors.New("The container failed to start due to timed out.")
)

Functions

func GetFullContainerName

func GetFullContainerName(name string) (string, error)

Types

type Config

type Config struct {
	Pidfile                     string
	Root                        string
	AutoRestart                 bool
	Dns                         []string
	DnsSearch                   []string
	EnableIPv6                  bool
	EnableIptables              bool
	EnableIpForward             bool
	EnableIpMasq                bool
	DefaultIp                   net.IP
	BridgeIface                 string
	BridgeIP                    string
	FixedCIDR                   string
	FixedCIDRv6                 string
	InterContainerCommunication bool
	GraphDriver                 string
	GraphOptions                []string
	ExecDriver                  string
	Mtu                         int
	SocketGroup                 string
	EnableCors                  bool
	CorsHeaders                 string
	DisableNetwork              bool
	EnableSelinuxSupport        bool
	Context                     map[string][]string
	TrustKeyPath                string
	Labels                      []string
	Ulimits                     map[string]*ulimit.Ulimit
	LogConfig                   runconfig.LogConfig
}

Config define the configuration of a docker daemon These are the configuration settings that you pass to the docker daemon when you launch it with say: `docker -d -e lxc` FIXME: separate runtime configuration from http api configuration

func (*Config) InstallFlags

func (config *Config) InstallFlags()

InstallFlags adds command-line options to the top-level flag parser for the current process. Subsequent calls to `flag.Parse` will populate config with values parsed from the command-line.

type Container

type Container struct {
	*State `json:"State"` // Needed for remote api version <= 1.11

	ID string

	Created time.Time

	Path string
	Args []string

	Config  *runconfig.Config
	ImageID string `json:"Image"`

	NetworkSettings *NetworkSettings

	ResolvConfPath string
	HostnamePath   string
	HostsPath      string
	LogPath        string
	Name           string
	Driver         string
	ExecDriver     string

	StreamConfig

	MountLabel, ProcessLabel string
	AppArmorProfile          string
	RestartCount             int
	UpdateDns                bool

	// Maps container paths to volume paths.  The key in this is the path to which
	// the volume is being mounted inside the container.  Value is the path of the
	// volume on disk
	Volumes map[string]string
	// Store rw/ro in a separate structure to preserve reverse-compatibility on-disk.
	// Easier than migrating older container configs :)
	VolumesRW map[string]bool

	AppliedVolumesFrom map[string]struct{}
	// contains filtered or unexported fields
}

func (*Container) AllocateNetwork

func (container *Container) AllocateNetwork() error

func (*Container) Changes

func (container *Container) Changes() ([]archive.Change, error)

func (*Container) Copy

func (container *Container) Copy(resource string) (io.ReadCloser, error)
func (container *Container) DisableLink(name string)

func (*Container) Exec

func (container *Container) Exec(execConfig *execConfig) error

func (*Container) Export

func (container *Container) Export() (archive.Archive, error)

func (*Container) ExportRw

func (container *Container) ExportRw() (archive.Archive, error)

func (*Container) Exposes

func (container *Container) Exposes(p nat.Port) bool

Returns true if the container exposes a certain port

func (*Container) FromDisk

func (container *Container) FromDisk() error

func (*Container) GetExecIDs

func (container *Container) GetExecIDs() []string

func (*Container) GetImage

func (container *Container) GetImage() (*image.Image, error)

func (*Container) GetMountLabel

func (container *Container) GetMountLabel() string

func (*Container) GetProcessLabel

func (container *Container) GetProcessLabel() string

func (*Container) GetPtyMaster

func (container *Container) GetPtyMaster() (libcontainer.Console, error)

func (*Container) GetSize

func (container *Container) GetSize() (int64, int64)

GetSize, return real size, virtual size

func (*Container) HostConfig

func (container *Container) HostConfig() *runconfig.HostConfig

func (*Container) Kill

func (container *Container) Kill() error

func (*Container) KillSig

func (container *Container) KillSig(sig int) error

func (*Container) LogDriverType

func (c *Container) LogDriverType() string

func (*Container) LogEvent

func (container *Container) LogEvent(action string)

func (*Container) Mount

func (container *Container) Mount() error

func (*Container) Output

func (container *Container) Output() (output []byte, err error)

func (*Container) Pause

func (container *Container) Pause() error

func (*Container) ReadLog

func (container *Container) ReadLog(name string) (io.Reader, error)

func (*Container) ReleaseNetwork

func (container *Container) ReleaseNetwork()

func (*Container) Resize

func (container *Container) Resize(h, w int) error

func (*Container) Restart

func (container *Container) Restart(seconds int) error

func (*Container) RestoreNetwork

func (container *Container) RestoreNetwork() error

func (*Container) RootfsPath

func (container *Container) RootfsPath() string

This method must be exported to be used from the lxc template This directory is only usable when the container is running

func (*Container) Run

func (container *Container) Run() error

func (*Container) SetHostConfig

func (container *Container) SetHostConfig(hostConfig *runconfig.HostConfig)

func (*Container) Start

func (container *Container) Start() (err error)

func (*Container) Stats

func (container *Container) Stats() (*execdriver.ResourceStats, error)

func (*Container) Stop

func (container *Container) Stop(seconds int) error

func (*Container) ToDisk

func (container *Container) ToDisk() error

func (*Container) Unmount

func (container *Container) Unmount() error

func (*Container) Unpause

func (container *Container) Unpause() error

func (*Container) VolumeMounts

func (container *Container) VolumeMounts() map[string]*Mount

func (*Container) VolumePaths

func (container *Container) VolumePaths() map[string]struct{}

func (*Container) WriteHostConfig

func (container *Container) WriteHostConfig() error

type Daemon

type Daemon struct {
	ID string

	RegistryService *registry.Service
	// contains filtered or unexported fields
}

func NewDaemon

func NewDaemon(config *Config, eng *engine.Engine, registryService *registry.Service) (*Daemon, error)

FIXME: harmonize with NewGraph()

func NewDaemonFromDirectory

func NewDaemonFromDirectory(config *Config, eng *engine.Engine, registryService *registry.Service) (*Daemon, error)

func (*Daemon) Attach

func (daemon *Daemon) Attach(streamConfig *StreamConfig, openStdin, stdinOnce, tty bool, stdin io.ReadCloser, stdout io.Writer, stderr io.Writer) chan error

func (*Daemon) Changes

func (daemon *Daemon) Changes(container *Container) ([]archive.Change, error)

func (*Daemon) Children

func (daemon *Daemon) Children(name string) (map[string]*Container, error)

func (*Daemon) CmdInfo

func (daemon *Daemon) CmdInfo(job *engine.Job) error

func (*Daemon) Commit

func (daemon *Daemon) Commit(container *Container, repository, tag, comment, author string, pause bool, config *runconfig.Config) (*image.Image, error)

Commit creates a new filesystem image from the current state of a container. The image can optionally be tagged into a repository

func (*Daemon) Config

func (daemon *Daemon) Config() *Config

func (*Daemon) ContainerAttach

func (daemon *Daemon) ContainerAttach(job *engine.Job) error

func (*Daemon) ContainerChanges

func (daemon *Daemon) ContainerChanges(job *engine.Job) error

func (*Daemon) ContainerCommit

func (daemon *Daemon) ContainerCommit(job *engine.Job) error

func (*Daemon) ContainerCopy

func (daemon *Daemon) ContainerCopy(job *engine.Job) error

func (*Daemon) ContainerCreate

func (daemon *Daemon) ContainerCreate(job *engine.Job) error

func (*Daemon) ContainerExecCreate

func (d *Daemon) ContainerExecCreate(job *engine.Job) error

func (*Daemon) ContainerExecInspect

func (daemon *Daemon) ContainerExecInspect(job *engine.Job) error

func (*Daemon) ContainerExecResize

func (daemon *Daemon) ContainerExecResize(job *engine.Job) error

func (*Daemon) ContainerExecStart

func (d *Daemon) ContainerExecStart(job *engine.Job) error

func (*Daemon) ContainerExport

func (daemon *Daemon) ContainerExport(job *engine.Job) error

func (*Daemon) ContainerGraph

func (daemon *Daemon) ContainerGraph() *graphdb.Database

func (*Daemon) ContainerInspect

func (daemon *Daemon) ContainerInspect(job *engine.Job) error

func (*Daemon) ContainerKill

func (daemon *Daemon) ContainerKill(job *engine.Job) error

ContainerKill send signal to the container If no signal is given (sig 0), then Kill with SIGKILL and wait for the container to exit. If a signal is given, then just send it to the container and return.

func (*Daemon) ContainerLogs

func (daemon *Daemon) ContainerLogs(job *engine.Job) error

func (*Daemon) ContainerPause

func (daemon *Daemon) ContainerPause(job *engine.Job) error

func (*Daemon) ContainerRename

func (daemon *Daemon) ContainerRename(job *engine.Job) error

func (*Daemon) ContainerResize

func (daemon *Daemon) ContainerResize(job *engine.Job) error

func (*Daemon) ContainerRestart

func (daemon *Daemon) ContainerRestart(job *engine.Job) error

func (*Daemon) ContainerRm

func (daemon *Daemon) ContainerRm(job *engine.Job) error

func (*Daemon) ContainerStart

func (daemon *Daemon) ContainerStart(job *engine.Job) error

func (*Daemon) ContainerStats

func (daemon *Daemon) ContainerStats(job *engine.Job) error

func (*Daemon) ContainerStop

func (daemon *Daemon) ContainerStop(job *engine.Job) error

func (*Daemon) ContainerTop

func (daemon *Daemon) ContainerTop(job *engine.Job) error

func (*Daemon) ContainerUnpause

func (daemon *Daemon) ContainerUnpause(job *engine.Job) error

func (*Daemon) ContainerWait

func (daemon *Daemon) ContainerWait(job *engine.Job) error

func (*Daemon) Containers

func (daemon *Daemon) Containers(job *engine.Job) error

func (*Daemon) Create

func (daemon *Daemon) Create(config *runconfig.Config, hostConfig *runconfig.HostConfig, name string) (*Container, []string, error)

Create creates a new container from the given configuration with a given name.

func (*Daemon) DeleteImage

func (daemon *Daemon) DeleteImage(eng *engine.Engine, name string, imgs *engine.Table, first, force, noprune bool) error

FIXME: make this private and use the job instead

func (*Daemon) DeleteVolumes

func (daemon *Daemon) DeleteVolumes(volumeIDs map[string]struct{})

func (*Daemon) Diff

func (daemon *Daemon) Diff(container *Container) (archive.Archive, error)

func (*Daemon) Exec

func (d *Daemon) Exec(c *Container, execConfig *execConfig, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (int, error)

func (*Daemon) ExecutionDriver

func (daemon *Daemon) ExecutionDriver() execdriver.Driver

func (*Daemon) Exists

func (daemon *Daemon) Exists(id string) bool

Exists returns a true if a container of the specified ID or name exists, false otherwise.

func (*Daemon) ForceRm

func (daemon *Daemon) ForceRm(container *Container) (err error)

func (*Daemon) GenerateSecurityOpt

func (daemon *Daemon) GenerateSecurityOpt(ipcMode runconfig.IpcMode, pidMode runconfig.PidMode) ([]string, error)

func (*Daemon) Get

func (daemon *Daemon) Get(prefixOrName string) (*Container, error)

Get looks for a container using the provided information, which could be one of the following inputs from the caller:

  • A full container ID, which will exact match a container in daemon's list
  • A container name, which will only exact match via the GetByName() function
  • A partial container ID prefix (e.g. short ID) of any length that is unique enough to only return a single container object If none of these searches succeed, an error is returned

func (*Daemon) GetByName

func (daemon *Daemon) GetByName(name string) (*Container, error)

func (*Daemon) Graph

func (daemon *Daemon) Graph() *graph.Graph

FIXME: this is a convenience function for integration tests which need direct access to daemon.graph. Once the tests switch to using engine and jobs, this method can go away.

func (*Daemon) GraphDriver

func (daemon *Daemon) GraphDriver() graphdriver.Driver

func (*Daemon) ImageDelete

func (daemon *Daemon) ImageDelete(job *engine.Job) error

func (*Daemon) ImageGetCached

func (daemon *Daemon) ImageGetCached(imgID string, config *runconfig.Config) (*image.Image, error)

func (*Daemon) Install

func (daemon *Daemon) Install(eng *engine.Engine) error

Install installs daemon capabilities to eng.

func (*Daemon) Kill

func (daemon *Daemon) Kill(c *Container, sig int) error

func (*Daemon) List

func (daemon *Daemon) List() []*Container

List returns an array of all containers registered in the daemon.

func (*Daemon) Mount

func (daemon *Daemon) Mount(container *Container) error

func (*Daemon) Nuke

func (daemon *Daemon) Nuke() error

Nuke kills all containers then removes all content from the content root, including images, volumes and container filesystems. Again: this will remove your entire docker daemon! FIXME: this is deprecated, and only used in legacy tests. Please remove.

func (*Daemon) Parents

func (daemon *Daemon) Parents(name string) ([]string, error)

func (*Daemon) Pause

func (daemon *Daemon) Pause(c *Container) error

func (*Daemon) Register

func (daemon *Daemon) Register(container *Container) error

Register makes a container object usable by the daemon as <container.ID> This is a wrapper for register

func (daemon *Daemon) RegisterLink(parent, child *Container, alias string) error
func (daemon *Daemon) RegisterLinks(container *Container, hostConfig *runconfig.HostConfig) error

func (*Daemon) Repositories

func (daemon *Daemon) Repositories() *graph.TagStore

func (*Daemon) Rm

func (daemon *Daemon) Rm(container *Container) (err error)

func (*Daemon) Run

func (daemon *Daemon) Run(c *Container, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (execdriver.ExitStatus, error)

func (*Daemon) Stats

func (daemon *Daemon) Stats(c *Container) (*execdriver.ResourceStats, error)

func (*Daemon) SubscribeToContainerStats

func (daemon *Daemon) SubscribeToContainerStats(name string) (chan interface{}, error)

func (*Daemon) SystemConfig

func (daemon *Daemon) SystemConfig() *sysinfo.SysInfo

func (*Daemon) SystemInitPath

func (daemon *Daemon) SystemInitPath() string

func (*Daemon) Unmount

func (daemon *Daemon) Unmount(container *Container) error

func (*Daemon) Unpause

func (daemon *Daemon) Unpause(c *Container) error

func (*Daemon) UnsubscribeToContainerStats

func (daemon *Daemon) UnsubscribeToContainerStats(name string, ch chan interface{}) error

type History

type History []*Container

History is a convenience type for storing a list of containers, ordered by creation date.

func (*History) Add

func (history *History) Add(container *Container)

func (*History) Len

func (history *History) Len() int

func (*History) Less

func (history *History) Less(i, j int) bool

func (*History) Sort

func (history *History) Sort()

func (*History) Swap

func (history *History) Swap(i, j int)

type Mount

type Mount struct {
	MountToPath string

	Writable bool
	// contains filtered or unexported fields
}

func (*Mount) Export

func (mnt *Mount) Export(resource string) (io.ReadCloser, error)

type NetworkSettings

type NetworkSettings struct {
	IPAddress              string
	IPPrefixLen            int
	MacAddress             string
	LinkLocalIPv6Address   string
	LinkLocalIPv6PrefixLen int
	GlobalIPv6Address      string
	GlobalIPv6PrefixLen    int
	Gateway                string
	IPv6Gateway            string
	Bridge                 string
	PortMapping            map[string]PortMapping // Deprecated
	Ports                  nat.PortMap
}

func (*NetworkSettings) PortMappingAPI

func (settings *NetworkSettings) PortMappingAPI() *engine.Table

type PortMapping

type PortMapping map[string]string // Deprecated

FIXME: move deprecated port stuff to nat to clean up the core.

type State

type State struct {
	sync.Mutex
	Running    bool
	Paused     bool
	Restarting bool
	OOMKilled  bool

	Dead       bool
	Pid        int
	ExitCode   int
	Error      string // contains last known error when starting the container
	StartedAt  time.Time
	FinishedAt time.Time
	// contains filtered or unexported fields
}

func NewState

func NewState() *State

func (*State) GetExitCode

func (s *State) GetExitCode() int

func (*State) GetPid

func (s *State) GetPid() int

func (*State) IsPaused

func (s *State) IsPaused() bool

func (*State) IsRestarting

func (s *State) IsRestarting() bool

func (*State) IsRunning

func (s *State) IsRunning() bool

func (*State) ResetRemovalInProgress

func (s *State) ResetRemovalInProgress()

func (*State) SetDead

func (s *State) SetDead()

func (*State) SetPaused

func (s *State) SetPaused()

func (*State) SetRemovalInProgress

func (s *State) SetRemovalInProgress() error

func (*State) SetRestarting

func (s *State) SetRestarting(exitStatus *execdriver.ExitStatus)

SetRestarting is when docker hanldes the auto restart of containers when they are in the middle of a stop and being restarted again

func (*State) SetRunning

func (s *State) SetRunning(pid int)

func (*State) SetStopped

func (s *State) SetStopped(exitStatus *execdriver.ExitStatus)

func (*State) SetUnpaused

func (s *State) SetUnpaused()

func (*State) StateString

func (s *State) StateString() string

StateString returns a single string to describe state

func (*State) String

func (s *State) String() string

String returns a human-readable description of the state

func (*State) WaitRunning

func (s *State) WaitRunning(timeout time.Duration) (int, error)

WaitRunning waits until state is running. If state already running it returns immediately. If you want wait forever you must supply negative timeout. Returns pid, that was passed to SetRunning

func (*State) WaitStop

func (s *State) WaitStop(timeout time.Duration) (int, error)

WaitStop waits until state is stopped. If state already stopped it returns immediately. If you want wait forever you must supply negative timeout. Returns exit code, that was passed to SetStopped

type StreamConfig

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

func (*StreamConfig) StderrLogPipe

func (streamConfig *StreamConfig) StderrLogPipe() io.ReadCloser

func (*StreamConfig) StderrPipe

func (streamConfig *StreamConfig) StderrPipe() io.ReadCloser

func (*StreamConfig) StdinPipe

func (streamConfig *StreamConfig) StdinPipe() io.WriteCloser

func (*StreamConfig) StdoutLogPipe

func (streamConfig *StreamConfig) StdoutLogPipe() io.ReadCloser

func (*StreamConfig) StdoutPipe

func (streamConfig *StreamConfig) StdoutPipe() io.ReadCloser

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