agent

package
Version: v1.0.7 Latest Latest
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Published: Apr 13, 2018 License: MPL-2.0 Imports: 75 Imported by: 0

Documentation

Index

Constants

View Source
const (
	SerfLANKeyring = "serf/local.keyring"
	SerfWANKeyring = "serf/remote.keyring"
)
View Source
const (
	MaxDNSLabelLength = 63
)
View Source
const (
	// Limit the size of a watch handlers's output to the
	// last WatchBufSize. Prevents an enormous buffer
	// from being captured
	WatchBufSize = 4 * 1024 // 4KB
)

Variables

View Source
var InvalidDnsRe = regexp.MustCompile(`[^A-Za-z0-9\\-]+`)
View Source
var TempDir = os.TempDir()

TempDir defines the base dir for temporary directories.

Functions

func Asset

func Asset(name string) ([]byte, error)

Asset loads and returns the asset for the given name. It returns an error if the asset could not be found or could not be loaded.

func AssetDir

func AssetDir(name string) ([]string, error)

AssetDir returns the file names below a certain directory embedded in the file by go-bindata. For example if you run go-bindata on data/... and data contains the following hierarchy:

data/
  foo.txt
  img/
    a.png
    b.png

then AssetDir("data") would return []string{"foo.txt", "img"} AssetDir("data/img") would return []string{"a.png", "b.png"} AssetDir("foo.txt") and AssetDir("notexist") would return an error AssetDir("") will return []string{"data"}.

func AssetInfo

func AssetInfo(name string) (os.FileInfo, error)

AssetInfo loads and returns the asset info for the given name. It returns an error if the asset could not be found or could not be loaded.

func AssetNames

func AssetNames() []string

AssetNames returns the names of the assets.

func FixupCheckType

func FixupCheckType(raw interface{}) error

func FixupChecks added in v1.0.2

func FixupChecks(raw interface{}, s *structs.Session) error

FixupChecks is used to handle parsing the JSON body to default-add the Serf health check if they didn't specify any checks, but to allow an empty list to take out the Serf health check. This behavior broke when mapstructure was updated after 0.9.3, likely because we have a type wrapper around the string.

func FixupLockDelay

func FixupLockDelay(raw interface{}) error

FixupLockDelay is used to handle parsing the JSON body to session/create and properly parsing out the lock delay duration value.

func ForwardSignals added in v1.0.0

func ForwardSignals(cmd *exec.Cmd, logFn func(error), shutdownCh <-chan struct{})

ForwardSignals will fire up a goroutine to forward signals to the given subprocess until the shutdown channel is closed.

func GetDNSConfig added in v1.0.0

func GetDNSConfig(conf *config.RuntimeConfig) *dnsConfig

func LocalConfig added in v1.0.1

func LocalConfig(cfg *config.RuntimeConfig) local.Config

func MustAsset

func MustAsset(name string) []byte

MustAsset is like Asset but panics when Asset would return an error. It simplifies safe initialization of global variables.

func NewDurationFixer added in v1.0.1

func NewDurationFixer(fields ...string) durationFixer

func NodeID added in v1.0.0

func NodeID() string

func ParseMetaPair

func ParseMetaPair(raw string) (string, string)

func ParseRelayFactor

func ParseRelayFactor(n int) (uint8, error)

ParseRelayFactor validates and converts the given relay factor to uint8

func RestoreAsset

func RestoreAsset(dir, name string) error

RestoreAsset restores an asset under the given directory

func RestoreAssets

func RestoreAssets(dir, name string) error

RestoreAssets restores an asset under the given directory recursively

func TestACLConfig

func TestACLConfig() string

TestACLConfig returns a default configuration for testing an agent with ACLs.

func TestConfig

func TestConfig(sources ...config.Source) *config.RuntimeConfig

TestConfig returns a unique default configuration for testing an agent.

Types

type Agent

type Agent struct {

	// Output sink for logs
	LogOutput io.Writer

	// Used for streaming logs to
	LogWriter *logger.LogWriter

	// In-memory sink used for collecting metrics
	MemSink *metrics.InmemSink

	// state stores a local representation of the node,
	// services and checks. Used for anti-entropy.
	State *local.State
	// contains filtered or unexported fields
}

The agent is the long running process that is run on every machine. It exposes an RPC interface that is used by the CLI to control the agent. The agent runs the query interfaces like HTTP, DNS, and RPC. However, it can run in either a client, or server mode. In server mode, it runs a full Consul server. In client-only mode, it only forwards requests to other Consul servers.

func New

func New(c *config.RuntimeConfig) (*Agent, error)

func (*Agent) AddCheck

func (a *Agent) AddCheck(check *structs.HealthCheck, chkType *structs.CheckType, persist bool, token string) error

AddCheck is used to add a health check to the agent. This entry is persistent and the agent will make a best effort to ensure it is registered. The Check may include a CheckType which is used to automatically update the check status

func (*Agent) AddService

func (a *Agent) AddService(service *structs.NodeService, chkTypes []*structs.CheckType, persist bool, token string) error

AddService is used to add a service entry. This entry is persistent and the agent will make a best effort to ensure it is registered

func (*Agent) DisableNodeMaintenance

func (a *Agent) DisableNodeMaintenance()

DisableNodeMaintenance removes a node from maintenance mode

func (*Agent) DisableServiceMaintenance

func (a *Agent) DisableServiceMaintenance(serviceID string) error

DisableServiceMaintenance will deregister the fake maintenance mode check if the service has been marked as in maintenance.

func (*Agent) EnableNodeMaintenance

func (a *Agent) EnableNodeMaintenance(reason, token string)

EnableNodeMaintenance places a node into maintenance mode.

func (*Agent) EnableServiceMaintenance

func (a *Agent) EnableServiceMaintenance(serviceID, reason, token string) error

EnableServiceMaintenance will register a false health check against the given service ID with critical status. This will exclude the service from queries.

func (*Agent) ForceLeave

func (a *Agent) ForceLeave(node string) (err error)

ForceLeave is used to remove a failed node from the cluster

func (*Agent) GetLANCoordinate

func (a *Agent) GetLANCoordinate() (lib.CoordinateSet, error)

GetLANCoordinate returns the coordinates of this node in the local pools (assumes coordinates are enabled, so check that before calling).

func (*Agent) GossipEncrypted

func (a *Agent) GossipEncrypted() bool

func (*Agent) InstallKey

func (a *Agent) InstallKey(key, token string, relayFactor uint8) (*structs.KeyringResponses, error)

InstallKey installs a new gossip encryption key

func (*Agent) JoinLAN

func (a *Agent) JoinLAN(addrs []string) (n int, err error)

JoinLAN is used to have the agent join a LAN cluster

func (*Agent) JoinWAN

func (a *Agent) JoinWAN(addrs []string) (n int, err error)

JoinWAN is used to have the agent join a WAN cluster

func (*Agent) LANMembers

func (a *Agent) LANMembers() []serf.Member

LANMembers is used to retrieve the LAN members

func (*Agent) LastUserEvent

func (a *Agent) LastUserEvent() *UserEvent

LastUserEvent is used to return the last user event. This will return nil if there is no recent event.

func (*Agent) Leave

func (a *Agent) Leave() error

Leave is used to prepare the agent for a graceful shutdown

func (*Agent) ListKeys

func (a *Agent) ListKeys(token string, relayFactor uint8) (*structs.KeyringResponses, error)

ListKeys lists out all keys installed on the collective Consul cluster. This includes both servers and clients in all DC's.

func (*Agent) LocalMember

func (a *Agent) LocalMember() serf.Member

LocalMember is used to return the local node

func (*Agent) PauseSync

func (a *Agent) PauseSync()

PauseSync is used to pause anti-entropy while bulk changes are make

func (*Agent) RPC

func (a *Agent) RPC(method string, args interface{}, reply interface{}) error

RPC is used to make an RPC call to the Consul servers This allows the agent to implement the Consul.Interface

func (*Agent) ReloadCh

func (a *Agent) ReloadCh() chan chan error

ReloadCh is used to return a channel that can be used for triggering reloads and returning a response.

func (*Agent) ReloadConfig

func (a *Agent) ReloadConfig(newCfg *config.RuntimeConfig) error

func (*Agent) RemoveCheck

func (a *Agent) RemoveCheck(checkID types.CheckID, persist bool) error

RemoveCheck is used to remove a health check. The agent will make a best effort to ensure it is deregistered

func (*Agent) RemoveKey

func (a *Agent) RemoveKey(key, token string, relayFactor uint8) (*structs.KeyringResponses, error)

RemoveKey will remove a gossip encryption key from the keyring

func (*Agent) RemoveService

func (a *Agent) RemoveService(serviceID string, persist bool) error

RemoveService is used to remove a service entry. The agent will make a best effort to ensure it is deregistered

func (*Agent) ResumeSync

func (a *Agent) ResumeSync()

ResumeSync is used to unpause anti-entropy after bulk changes are make

func (*Agent) RetryJoinCh

func (a *Agent) RetryJoinCh() <-chan error

RetryJoinCh is a channel that transports errors from the retry join process.

func (*Agent) ShutdownAgent

func (a *Agent) ShutdownAgent() error

ShutdownAgent is used to hard stop the agent. Should be preceded by Leave to do it gracefully. Should be followed by ShutdownEndpoints to terminate the HTTP and DNS servers as well.

func (*Agent) ShutdownCh

func (a *Agent) ShutdownCh() <-chan struct{}

ShutdownCh is used to return a channel that can be selected to wait for the agent to perform a shutdown.

func (*Agent) ShutdownEndpoints

func (a *Agent) ShutdownEndpoints()

ShutdownEndpoints terminates the HTTP and DNS servers. Should be preceded by ShutdownAgent.

func (*Agent) SnapshotRPC

func (a *Agent) SnapshotRPC(args *structs.SnapshotRequest, in io.Reader, out io.Writer,
	replyFn structs.SnapshotReplyFn) error

SnapshotRPC performs the requested snapshot RPC against the Consul server in a streaming manner. The contents of in will be read and passed along as the payload, and the response message will determine the error status, and any return payload will be written to out.

func (*Agent) Start

func (a *Agent) Start() error

func (*Agent) StartSync

func (a *Agent) StartSync()

StartSync is called once Services and Checks are registered. This is called to prevent a race between clients and the anti-entropy routines

func (*Agent) Stats

func (a *Agent) Stats() map[string]map[string]string

Stats is used to get various debugging state from the sub-systems

func (*Agent) TranslateAddress added in v0.9.0

func (a *Agent) TranslateAddress(dc string, addr string, taggedAddresses map[string]string) string

TranslateAddress is used to provide the final, translated address for a node, depending on how the agent and the other node are configured. The dc parameter is the dc the datacenter this node is from.

func (*Agent) TranslateAddresses added in v0.9.0

func (a *Agent) TranslateAddresses(dc string, subj interface{})

TranslateAddresses translates addresses in the given structure into the final, translated address, depending on how the agent and the other node are configured. The dc parameter is the datacenter this structure is from.

func (*Agent) UseKey

func (a *Agent) UseKey(key, token string, relayFactor uint8) (*structs.KeyringResponses, error)

UseKey changes the primary encryption key used to encrypt messages

func (*Agent) UserEvent

func (a *Agent) UserEvent(dc, token string, params *UserEvent) error

UserEvent is used to fire an event via the Serf layer on the LAN

func (*Agent) UserEvents

func (a *Agent) UserEvents() []*UserEvent

UserEvents is used to return a slice of the most recent user events.

func (*Agent) WANMembers

func (a *Agent) WANMembers() []serf.Member

WANMembers is used to retrieve the WAN members

type Blacklist added in v0.9.0

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

Blacklist implements an HTTP endpoint blacklist based on a list of endpoint prefixes which should be blocked.

func NewBlacklist added in v0.9.0

func NewBlacklist(prefixes []string) *Blacklist

NewBlacklist returns a blacklist for the given list of prefixes.

func (*Blacklist) Block added in v0.9.0

func (b *Blacklist) Block(path string) bool

Block will return true if the given path is included among any of the blocked prefixes.

type DNSServer

type DNSServer struct {
	*dns.Server
	// contains filtered or unexported fields
}

DNSServer is used to wrap an Agent and expose various service discovery endpoints using a DNS interface.

func NewDNSServer

func NewDNSServer(a *Agent) (*DNSServer, error)

func (*DNSServer) ListenAndServe

func (d *DNSServer) ListenAndServe(network, addr string, notif func()) error

type HTTPServer

type HTTPServer struct {
	*http.Server
	// contains filtered or unexported fields
}

HTTPServer provides an HTTP api for an agent.

func (*HTTPServer) ACLBootstrap added in v0.9.1

func (s *HTTPServer) ACLBootstrap(resp http.ResponseWriter, req *http.Request) (interface{}, error)

ACLBootstrap is used to perform a one-time ACL bootstrap operation on a cluster to get the first management token.

func (*HTTPServer) ACLClone

func (s *HTTPServer) ACLClone(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) ACLCreate

func (s *HTTPServer) ACLCreate(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) ACLDestroy

func (s *HTTPServer) ACLDestroy(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) ACLGet

func (s *HTTPServer) ACLGet(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) ACLList

func (s *HTTPServer) ACLList(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) ACLReplicationStatus

func (s *HTTPServer) ACLReplicationStatus(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) ACLUpdate

func (s *HTTPServer) ACLUpdate(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentCheckFail

func (s *HTTPServer) AgentCheckFail(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentCheckPass

func (s *HTTPServer) AgentCheckPass(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentCheckUpdate

func (s *HTTPServer) AgentCheckUpdate(resp http.ResponseWriter, req *http.Request) (interface{}, error)

AgentCheckUpdate is a PUT-based alternative to the GET-based Pass/Warn/Fail APIs.

func (*HTTPServer) AgentCheckWarn

func (s *HTTPServer) AgentCheckWarn(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentChecks

func (s *HTTPServer) AgentChecks(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentDeregisterCheck

func (s *HTTPServer) AgentDeregisterCheck(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentDeregisterService

func (s *HTTPServer) AgentDeregisterService(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentForceLeave

func (s *HTTPServer) AgentForceLeave(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentJoin

func (s *HTTPServer) AgentJoin(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentLeave

func (s *HTTPServer) AgentLeave(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentMembers

func (s *HTTPServer) AgentMembers(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentMetrics added in v0.9.1

func (s *HTTPServer) AgentMetrics(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentMonitor

func (s *HTTPServer) AgentMonitor(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentNodeMaintenance

func (s *HTTPServer) AgentNodeMaintenance(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentRegisterCheck

func (s *HTTPServer) AgentRegisterCheck(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentRegisterService

func (s *HTTPServer) AgentRegisterService(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentReload

func (s *HTTPServer) AgentReload(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentSelf

func (s *HTTPServer) AgentSelf(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentServiceMaintenance

func (s *HTTPServer) AgentServiceMaintenance(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentServices

func (s *HTTPServer) AgentServices(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) AgentToken added in v0.9.1

func (s *HTTPServer) AgentToken(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) CatalogDatacenters

func (s *HTTPServer) CatalogDatacenters(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) CatalogDeregister

func (s *HTTPServer) CatalogDeregister(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) CatalogNodeServices

func (s *HTTPServer) CatalogNodeServices(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) CatalogNodes

func (s *HTTPServer) CatalogNodes(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) CatalogRegister

func (s *HTTPServer) CatalogRegister(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) CatalogServiceNodes

func (s *HTTPServer) CatalogServiceNodes(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) CatalogServices

func (s *HTTPServer) CatalogServices(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) CoordinateDatacenters

func (s *HTTPServer) CoordinateDatacenters(resp http.ResponseWriter, req *http.Request) (interface{}, error)

CoordinateDatacenters returns the WAN nodes in each datacenter, along with raw network coordinates.

func (*HTTPServer) CoordinateNode added in v1.0.1

func (s *HTTPServer) CoordinateNode(resp http.ResponseWriter, req *http.Request) (interface{}, error)

CoordinateNode returns the LAN node in the given datacenter, along with raw network coordinates.

func (*HTTPServer) CoordinateNodes

func (s *HTTPServer) CoordinateNodes(resp http.ResponseWriter, req *http.Request) (interface{}, error)

CoordinateNodes returns the LAN nodes in the given datacenter, along with raw network coordinates.

func (*HTTPServer) CoordinateUpdate added in v1.0.1

func (s *HTTPServer) CoordinateUpdate(resp http.ResponseWriter, req *http.Request) (interface{}, error)

CoordinateUpdate inserts or updates the LAN coordinate of a node.

func (*HTTPServer) EventFire

func (s *HTTPServer) EventFire(resp http.ResponseWriter, req *http.Request) (interface{}, error)

EventFire is used to fire a new event

func (*HTTPServer) EventList

func (s *HTTPServer) EventList(resp http.ResponseWriter, req *http.Request) (interface{}, error)

EventList is used to retrieve the recent list of events

func (*HTTPServer) HealthChecksInState

func (s *HTTPServer) HealthChecksInState(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) HealthNodeChecks

func (s *HTTPServer) HealthNodeChecks(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) HealthServiceChecks

func (s *HTTPServer) HealthServiceChecks(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) HealthServiceNodes

func (s *HTTPServer) HealthServiceNodes(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) Index

func (s *HTTPServer) Index(resp http.ResponseWriter, req *http.Request)

Renders a simple index page

func (*HTTPServer) IsUIEnabled

func (s *HTTPServer) IsUIEnabled() bool

Returns true if the UI is enabled.

func (*HTTPServer) KVSDelete

func (s *HTTPServer) KVSDelete(resp http.ResponseWriter, req *http.Request, args *structs.KeyRequest) (interface{}, error)

KVSPut handles a DELETE request

func (*HTTPServer) KVSEndpoint

func (s *HTTPServer) KVSEndpoint(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) KVSGet

func (s *HTTPServer) KVSGet(resp http.ResponseWriter, req *http.Request, args *structs.KeyRequest) (interface{}, error)

KVSGet handles a GET request

func (*HTTPServer) KVSGetKeys

func (s *HTTPServer) KVSGetKeys(resp http.ResponseWriter, req *http.Request, args *structs.KeyRequest) (interface{}, error)

KVSGetKeys handles a GET request for keys

func (*HTTPServer) KVSPut

func (s *HTTPServer) KVSPut(resp http.ResponseWriter, req *http.Request, args *structs.KeyRequest) (interface{}, error)

KVSPut handles a PUT request

func (*HTTPServer) KeyringInstall

func (s *HTTPServer) KeyringInstall(resp http.ResponseWriter, req *http.Request, args *keyringArgs) (interface{}, error)

KeyringInstall is used to install a new gossip encryption key into the cluster

func (*HTTPServer) KeyringList

func (s *HTTPServer) KeyringList(resp http.ResponseWriter, req *http.Request, args *keyringArgs) (interface{}, error)

KeyringList is used to list the keys installed in the cluster

func (*HTTPServer) KeyringRemove

func (s *HTTPServer) KeyringRemove(resp http.ResponseWriter, req *http.Request, args *keyringArgs) (interface{}, error)

KeyringRemove is used to list the keys installed in the cluster

func (*HTTPServer) KeyringUse

func (s *HTTPServer) KeyringUse(resp http.ResponseWriter, req *http.Request, args *keyringArgs) (interface{}, error)

KeyringUse is used to change the primary gossip encryption key

func (*HTTPServer) OperatorAutopilotConfiguration

func (s *HTTPServer) OperatorAutopilotConfiguration(resp http.ResponseWriter, req *http.Request) (interface{}, error)

OperatorAutopilotConfiguration is used to inspect the current Autopilot configuration. This supports the stale query mode in case the cluster doesn't have a leader.

func (*HTTPServer) OperatorKeyringEndpoint

func (s *HTTPServer) OperatorKeyringEndpoint(resp http.ResponseWriter, req *http.Request) (interface{}, error)

OperatorKeyringEndpoint handles keyring operations (install, list, use, remove)

func (*HTTPServer) OperatorRaftConfiguration

func (s *HTTPServer) OperatorRaftConfiguration(resp http.ResponseWriter, req *http.Request) (interface{}, error)

OperatorRaftConfiguration is used to inspect the current Raft configuration. This supports the stale query mode in case the cluster doesn't have a leader.

func (*HTTPServer) OperatorRaftPeer

func (s *HTTPServer) OperatorRaftPeer(resp http.ResponseWriter, req *http.Request) (interface{}, error)

OperatorRaftPeer supports actions on Raft peers. Currently we only support removing peers by address.

func (*HTTPServer) OperatorServerHealth

func (s *HTTPServer) OperatorServerHealth(resp http.ResponseWriter, req *http.Request) (interface{}, error)

OperatorServerHealth is used to get the health of the servers in the local DC

func (*HTTPServer) PreparedQueryGeneral

func (s *HTTPServer) PreparedQueryGeneral(resp http.ResponseWriter, req *http.Request) (interface{}, error)

PreparedQueryGeneral handles all the general prepared query requests.

func (*HTTPServer) PreparedQuerySpecific

func (s *HTTPServer) PreparedQuerySpecific(resp http.ResponseWriter, req *http.Request) (interface{}, error)

PreparedQuerySpecific handles all the prepared query requests specific to a particular query.

func (*HTTPServer) SessionCreate

func (s *HTTPServer) SessionCreate(resp http.ResponseWriter, req *http.Request) (interface{}, error)

SessionCreate is used to create a new session

func (*HTTPServer) SessionDestroy

func (s *HTTPServer) SessionDestroy(resp http.ResponseWriter, req *http.Request) (interface{}, error)

SessionDestroy is used to destroy an existing session

func (*HTTPServer) SessionGet

func (s *HTTPServer) SessionGet(resp http.ResponseWriter, req *http.Request) (interface{}, error)

SessionGet is used to get info for a particular session

func (*HTTPServer) SessionList

func (s *HTTPServer) SessionList(resp http.ResponseWriter, req *http.Request) (interface{}, error)

SessionList is used to list all the sessions

func (*HTTPServer) SessionRenew

func (s *HTTPServer) SessionRenew(resp http.ResponseWriter, req *http.Request) (interface{}, error)

SessionRenew is used to renew the TTL on an existing TTL session

func (*HTTPServer) SessionsForNode

func (s *HTTPServer) SessionsForNode(resp http.ResponseWriter, req *http.Request) (interface{}, error)

SessionsForNode returns all the nodes belonging to a node

func (*HTTPServer) Snapshot

func (s *HTTPServer) Snapshot(resp http.ResponseWriter, req *http.Request) (interface{}, error)

Snapshot handles requests to take and restore snapshots. This uses a special mechanism to make the RPC since we potentially stream large amounts of data as part of these requests.

func (*HTTPServer) StatusLeader

func (s *HTTPServer) StatusLeader(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) StatusPeers

func (s *HTTPServer) StatusPeers(resp http.ResponseWriter, req *http.Request) (interface{}, error)

func (*HTTPServer) Txn

func (s *HTTPServer) Txn(resp http.ResponseWriter, req *http.Request) (interface{}, error)

Txn handles requests to apply multiple operations in a single, atomic transaction. A transaction consisting of only read operations will be fast- pathed to an endpoint that supports consistency modes (but not blocking), and everything else will be routed through Raft like a normal write.

func (*HTTPServer) UINodeInfo

func (s *HTTPServer) UINodeInfo(resp http.ResponseWriter, req *http.Request) (interface{}, error)

UINodeInfo is used to get info on a single node in a given datacenter. We return a NodeInfo which provides overview information for the node

func (*HTTPServer) UINodes

func (s *HTTPServer) UINodes(resp http.ResponseWriter, req *http.Request) (interface{}, error)

UINodes is used to list the nodes in a given datacenter. We return a NodeDump which provides overview information for all the nodes

func (*HTTPServer) UIServices

func (s *HTTPServer) UIServices(resp http.ResponseWriter, req *http.Request) (interface{}, error)

UIServices is used to list the services in a given datacenter. We return a ServiceSummary which provides overview information for the service

type MethodNotAllowedError added in v1.0.0

type MethodNotAllowedError struct {
	Method string
	Allow  []string
}

MethodNotAllowedError should be returned by a handler when the HTTP method is not allowed.

func (MethodNotAllowedError) Error added in v1.0.0

func (e MethodNotAllowedError) Error() string

type NotifyGroup

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

NotifyGroup is used to allow a simple notification mechanism. Channels can be marked as waiting, and when notify is invoked, all the waiting channels get a message and are cleared from the notify list.

func (*NotifyGroup) Clear

func (n *NotifyGroup) Clear(ch chan struct{})

Clear removes a channel from the notify group

func (*NotifyGroup) Notify

func (n *NotifyGroup) Notify()

Notify will do a non-blocking send to all waiting channels, and clear the notify list

func (*NotifyGroup) Wait

func (n *NotifyGroup) Wait(ch chan struct{})

Wait adds a channel to the notify group

func (*NotifyGroup) WaitCh

func (n *NotifyGroup) WaitCh() chan struct{}

WaitCh allocates a channel that is subscribed to notifications

type Self

type Self struct {
	Config      interface{}
	DebugConfig map[string]interface{}
	Coord       *coordinate.Coordinate
	Member      serf.Member
	Stats       map[string]map[string]string
	Meta        map[string]string
}

type ServiceSummary

type ServiceSummary struct {
	Name           string
	Tags           []string
	Nodes          []string
	ChecksPassing  int
	ChecksWarning  int
	ChecksCritical int
}

ServiceSummary is used to summarize a service

type TestAgent

type TestAgent struct {
	// Name is an optional name of the agent.
	Name string

	HCL string

	// Config is the agent configuration. If Config is nil then
	// TestConfig() is used. If Config.DataDir is set then it is
	// the callers responsibility to clean up the data directory.
	// Otherwise, a temporary data directory is created and removed
	// when Shutdown() is called.
	Config *config.RuntimeConfig

	// LogOutput is the sink for the logs. If nil, logs are written
	// to os.Stderr.
	LogOutput io.Writer

	// LogWriter is used for streaming logs.
	LogWriter *logger.LogWriter

	// DataDir is the data directory which is used when Config.DataDir
	// is not set. It is created automatically and removed when
	// Shutdown() is called.
	DataDir string

	// Key is the optional encryption key for the LAN and WAN keyring.
	Key string

	// UseTLS, if true, will disable the HTTP port and enable the HTTPS
	// one.
	UseTLS bool

	// Agent is the embedded consul agent.
	// It is valid after Start().
	*Agent
	// contains filtered or unexported fields
}

TestAgent encapsulates an Agent with a default configuration and startup procedure suitable for testing. It panics if there are errors during creation or startup instead of returning errors. It manages a temporary data directory which is removed after shutdown.

func NewTestAgent

func NewTestAgent(name string, hcl string) *TestAgent

NewTestAgent returns a started agent with the given name and configuration. It panics if the agent could not be started. The caller should call Shutdown() to stop the agent and remove temporary directories.

func (*TestAgent) Client

func (a *TestAgent) Client() *api.Client

func (*TestAgent) DNSAddr added in v1.0.0

func (a *TestAgent) DNSAddr() string

func (*TestAgent) DNSDisableCompression added in v0.9.0

func (a *TestAgent) DNSDisableCompression(b bool)

DNSDisableCompression disables compression for all started DNS servers.

func (*TestAgent) HTTPAddr

func (a *TestAgent) HTTPAddr() string

func (*TestAgent) SegmentAddr added in v0.9.3

func (a *TestAgent) SegmentAddr(name string) string

func (*TestAgent) Shutdown

func (a *TestAgent) Shutdown() error

Shutdown stops the agent and removes the data directory if it is managed by the test agent.

func (*TestAgent) Start

func (a *TestAgent) Start() *TestAgent

Start starts a test agent. It panics if the agent could not be started.

type UserEvent

type UserEvent struct {
	// ID of the user event. Automatically generated.
	ID string

	// Name of the event
	Name string `codec:"n"`

	// Optional payload
	Payload []byte `codec:"p,omitempty"`

	// NodeFilter is a regular expression to filter on nodes
	NodeFilter string `codec:"nf,omitempty"`

	// ServiceFilter is a regular expression to filter on services
	ServiceFilter string `codec:"sf,omitempty"`

	// TagFilter is a regular expression to filter on tags of a service,
	// must be provided with ServiceFilter
	TagFilter string `codec:"tf,omitempty"`

	// Version of the user event. Automatically generated.
	Version int `codec:"v"`

	// LTime is the lamport time. Automatically generated.
	LTime uint64 `codec:"-"`
}

UserEventParam is used to parameterize a user event

Directories

Path Synopsis
Package ae provides tools to synchronize state between local and remote consul servers.
Package ae provides tools to synchronize state between local and remote consul servers.
The snapshot endpoint is a special non-RPC endpoint that supports streaming for taking and restoring snapshots for disaster recovery.
The snapshot endpoint is a special non-RPC endpoint that supports streaming for taking and restoring snapshots for disaster recovery.
fsm
Package servers provides a Manager interface for Manager managed metadata.Server objects.
Package servers provides a Manager interface for Manager managed metadata.Server objects.

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