api

package
v0.4.3 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Sep 22, 2016 License: MPL-2.0 Imports: 14 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// OriginStart and OriginEnd are the available parameters for the origin
	// argument when streaming a file. They respectively offset from the start
	// and end of a file.
	OriginStart = "start"
	OriginEnd   = "end"
)
View Source 
const (
	// JobTypeService indicates a long-running processes
	JobTypeService = "service"

	// JobTypeBatch indicates a short-lived process
	JobTypeBatch = "batch"
)
View Source 
const (
	TaskDriverFailure          = "Driver Failure"
	TaskReceived               = "Received"
	TaskFailedValidation       = "Failed Validation"
	TaskStarted                = "Started"
	TaskTerminated             = "Terminated"
	TaskKilling                = "Killing"
	TaskKilled                 = "Killed"
	TaskRestarting             = "Restarting"
	TaskNotRestarting          = "Not Restarting"
	TaskDownloadingArtifacts   = "Downloading Artifacts"
	TaskArtifactDownloadFailed = "Failed Artifact Download"
)
View Source 
const (
	// RegisterEnforceIndexErrPrefix is the prefix to use in errors caused by
	// enforcing the job modify index during registers.
	RegisterEnforceIndexErrPrefix = "Enforcing job modify index"
)

Variables

This section is empty.

Functions

This section is empty.

Types

type Agent 

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

Agent encapsulates an API client which talks to Nomad's agent endpoints for a specific node.

func (*Agent) Datacenter 

func (a *Agent) Datacenter() (string, error)

Datacenter is used to return the name of the datacenter which the agent is a member of.

func (*Agent) ForceLeave 

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

ForceLeave is used to eject an existing node from the cluster.

func (*Agent) Join 

func (a *Agent) Join(addrs ...string) (int, error)

Join is used to instruct a server node to join another server via the gossip protocol. Multiple addresses may be specified. We attempt to join all of the hosts in the list. Returns the number of nodes successfully joined and any error. If one or more nodes have a successful result, no error is returned.

func (*Agent) Members 

func (a *Agent) Members() ([]*AgentMember, error)

Members is used to query all of the known server members

func (*Agent) NodeName 

func (a *Agent) NodeName() (string, error)

NodeName is used to query the Nomad agent for its node name.

func (*Agent) Region 

func (a *Agent) Region() (string, error)

Region is used to look up the region the agent is in.

func (*Agent) Self 

func (a *Agent) Self() (map[string]map[string]interface{}, error)

Self is used to query the /v1/agent/self endpoint and returns information specific to the running agent.

func (*Agent) Servers 

func (a *Agent) Servers() ([]string, error)

Servers is used to query the list of servers on a client node.

func (*Agent) SetServers 

func (a *Agent) SetServers(addrs []string) error

SetServers is used to update the list of servers on a client node.

type AgentMember 

type AgentMember struct {
	Name        string
	Addr        string
	Port        uint16
	Tags        map[string]string
	Status      string
	ProtocolMin uint8
	ProtocolMax uint8
	ProtocolCur uint8
	DelegateMin uint8
	DelegateMax uint8
	DelegateCur uint8
}

AgentMember represents a cluster member known to the agent

type AgentMembersNameSort added in v0.2.0 

type AgentMembersNameSort []*AgentMember

AgentMembersNameSort implements sort.Interface for []*AgentMembersNameSort based on the Name, DC and Region

func (AgentMembersNameSort) Len added in v0.2.0 

func (a AgentMembersNameSort) Len() int

func (AgentMembersNameSort) Less added in v0.2.0 

func (a AgentMembersNameSort) Less(i, j int) bool

func (AgentMembersNameSort) Swap added in v0.2.0 

func (a AgentMembersNameSort) Swap(i, j int)

type AllocFS added in v0.3.0 

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

AllocFS is used to introspect an allocation directory on a Nomad client

func (*AllocFS) Cat added in v0.3.2 

func (a *AllocFS) Cat(alloc *Allocation, path string, q *QueryOptions) (io.ReadCloser, error)

Cat is used to read contents of a file at the given path in an allocation directory

func (*AllocFS) List added in v0.3.0 

func (a *AllocFS) List(alloc *Allocation, path string, q *QueryOptions) ([]*AllocFileInfo, *QueryMeta, error)

List is used to list the files at a given path of an allocation directory

func (*AllocFS) Logs added in v0.4.1 

func (a *AllocFS) Logs(alloc *Allocation, follow bool, task, logType, origin string,
	offset int64, cancel <-chan struct{}, q *QueryOptions) (<-chan *StreamFrame, error)

Logs streams the content of a tasks logs blocking on EOF. The parameters are: * allocation: the allocation to stream from. * follow: Whether the logs should be followed. * task: the tasks name to stream logs for. * logType: Either "stdout" or "stderr" * origin: Either "start" or "end" and defines from where the offset is applied. * offset: The offset to start streaming data at. * cancel: A channel that when closed, streaming will end.

The return value is a channel that will emit StreamFrames as they are read.

func (*AllocFS) ReadAt added in v0.3.0 

func (a *AllocFS) ReadAt(alloc *Allocation, path string, offset int64, limit int64, q *QueryOptions) (io.ReadCloser, error)

ReadAt is used to read bytes at a given offset until limit at the given path in an allocation directory. If limit is <= 0, there is no limit.

func (*AllocFS) Stat added in v0.3.0 

func (a *AllocFS) Stat(alloc *Allocation, path string, q *QueryOptions) (*AllocFileInfo, *QueryMeta, error)

Stat is used to stat a file at a given path of an allocation directory

func (*AllocFS) Stream added in v0.4.1 

func (a *AllocFS) Stream(alloc *Allocation, path, origin string, offset int64,
	cancel <-chan struct{}, q *QueryOptions) (<-chan *StreamFrame, error)

Stream streams the content of a file blocking on EOF. The parameters are: * path: path to file to stream. * offset: The offset to start streaming data at. * origin: Either "start" or "end" and defines from where the offset is applied. * cancel: A channel that when closed, streaming will end.

The return value is a channel that will emit StreamFrames as they are read.

type AllocFileInfo added in v0.3.0 

type AllocFileInfo struct {
	Name     string
	IsDir    bool
	Size     int64
	FileMode string
	ModTime  time.Time
}

AllocFileInfo holds information about a file inside the AllocDir

type AllocIndexSort 

type AllocIndexSort []*AllocationListStub

AllocIndexSort reverse sorts allocs by CreateIndex.

func (AllocIndexSort) Len 

func (a AllocIndexSort) Len() int

func (AllocIndexSort) Less 

func (a AllocIndexSort) Less(i, j int) bool

func (AllocIndexSort) Swap 

func (a AllocIndexSort) Swap(i, j int)

type AllocResourceUsage added in v0.4.0 

type AllocResourceUsage struct {
	ResourceUsage *ResourceUsage
	Tasks         map[string]*TaskResourceUsage
	Timestamp     int64
}

AllocResourceUsage holds the aggregated task resource usage of the allocation.

type Allocation 

type Allocation struct {
	ID                 string
	EvalID             string
	Name               string
	NodeID             string
	JobID              string
	Job                *Job
	TaskGroup          string
	Resources          *Resources
	TaskResources      map[string]*Resources
	Services           map[string]string
	Metrics            *AllocationMetric
	DesiredStatus      string
	DesiredDescription string
	ClientStatus       string
	ClientDescription  string
	TaskStates         map[string]*TaskState
	CreateIndex        uint64
	ModifyIndex        uint64
	CreateTime         int64
}

Allocation is used for serialization of allocations.

type AllocationListStub 

type AllocationListStub struct {
	ID                 string
	EvalID             string
	Name               string
	NodeID             string
	JobID              string
	TaskGroup          string
	DesiredStatus      string
	DesiredDescription string
	ClientStatus       string
	ClientDescription  string
	TaskStates         map[string]*TaskState
	CreateIndex        uint64
	ModifyIndex        uint64
	CreateTime         int64
}

AllocationListStub is used to return a subset of an allocation during list operations.

type AllocationMetric 

type AllocationMetric struct {
	NodesEvaluated     int
	NodesFiltered      int
	NodesAvailable     map[string]int
	ClassFiltered      map[string]int
	ConstraintFiltered map[string]int
	NodesExhausted     int
	ClassExhausted     map[string]int
	DimensionExhausted map[string]int
	Scores             map[string]float64
	AllocationTime     time.Duration
	CoalescedFailures  int
}

AllocationMetric is used to deserialize allocation metrics.

type AllocationSort added in v0.2.0 

type AllocationSort []*Allocation

AllocationSort reverse sorts allocs by CreateIndex.

func (AllocationSort) Len added in v0.2.0 

func (a AllocationSort) Len() int

func (AllocationSort) Less added in v0.2.0 

func (a AllocationSort) Less(i, j int) bool

func (AllocationSort) Swap added in v0.2.0 

func (a AllocationSort) Swap(i, j int)

type Allocations 

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

Allocations is used to query the alloc-related endpoints.

func (*Allocations) Info 

func (a *Allocations) Info(allocID string, q *QueryOptions) (*Allocation, *QueryMeta, error)

Info is used to retrieve a single allocation.

func (*Allocations) List 

func (a *Allocations) List(q *QueryOptions) ([]*AllocationListStub, *QueryMeta, error)

List returns a list of all of the allocations.

func (*Allocations) PrefixList added in v0.3.0 

func (a *Allocations) PrefixList(prefix string) ([]*AllocationListStub, *QueryMeta, error)

func (*Allocations) Stats added in v0.4.0 

func (a *Allocations) Stats(alloc *Allocation, q *QueryOptions) (*AllocResourceUsage, error)

type Client 

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

Client provides a client to the Nomad API

func NewClient 

func NewClient(config *Config) (*Client, error)

NewClient returns a new client

func (*Client) Agent 

func (c *Client) Agent() *Agent

Agent returns a new agent which can be used to query the agent-specific endpoints.

func (*Client) AllocFS added in v0.3.0 

func (c *Client) AllocFS() *AllocFS

AllocFS returns an handle to the AllocFS endpoints

func (*Client) Allocations 

func (c *Client) Allocations() *Allocations

Allocations returns a handle on the allocs endpoints.

func (*Client) Evaluations 

func (c *Client) Evaluations() *Evaluations

Evaluations returns a new handle on the evaluations.

func (*Client) Jobs 

func (c *Client) Jobs() *Jobs

Jobs returns a handle on the jobs endpoints.

func (*Client) Nodes 

func (c *Client) Nodes() *Nodes

Nodes returns a handle on the node endpoints.

func (*Client) Raw 

func (c *Client) Raw() *Raw

Raw returns a handle to query endpoints

func (*Client) Regions added in v0.2.1 

func (c *Client) Regions() *Regions

Regions returns a handle on the allocs endpoints.

func (*Client) SetRegion added in v0.4.0 

func (c *Client) SetRegion(region string)

SetRegion sets the region to forward API requests to.

func (*Client) Status 

func (c *Client) Status() *Status

Status returns a handle on the status endpoints.

func (*Client) System added in v0.3.0 

func (c *Client) System() *System

System returns a handle on the system endpoints.

type Config 

type Config struct {
	// Address is the address of the Nomad agent
	Address string

	// Region to use. If not provided, the default agent region is used.
	Region string

	// HttpClient is the client to use. Default will be
	// used if not provided.
	HttpClient *http.Client

	// HttpAuth is the auth info to use for http access.
	HttpAuth *HttpBasicAuth

	// WaitTime limits how long a Watch will block. If not provided,
	// the agent default values will be used.
	WaitTime time.Duration
}

Config is used to configure the creation of a client

func DefaultConfig 

func DefaultConfig() *Config

DefaultConfig returns a default configuration for the client

type Constraint 

type Constraint struct {
	LTarget string
	RTarget string
	Operand string
}

Constraint is used to serialize a job placement constraint.

func NewConstraint added in v0.2.0 

func NewConstraint(left, operand, right string) *Constraint

NewConstraint generates a new job placement constraint.

type CpuStats added in v0.4.0 

type CpuStats struct {
	SystemMode       float64
	UserMode         float64
	TotalTicks       float64
	ThrottledPeriods uint64
	ThrottledTime    uint64
	Percent          float64
	Measured         []string
}

CpuStats holds cpu usage related stats

type DesiredUpdates added in v0.4.0 

type DesiredUpdates struct {
	Ignore            uint64
	Place             uint64
	Migrate           uint64
	Stop              uint64
	InPlaceUpdate     uint64
	DestructiveUpdate uint64
}

type EvalIndexSort 

type EvalIndexSort []*Evaluation

EvalIndexSort is a wrapper to sort evaluations by CreateIndex. We reverse the test so that we get the highest index first.

func (EvalIndexSort) Len 

func (e EvalIndexSort) Len() int

func (EvalIndexSort) Less 

func (e EvalIndexSort) Less(i, j int) bool

func (EvalIndexSort) Swap 

func (e EvalIndexSort) Swap(i, j int)

type Evaluation 

type Evaluation struct {
	ID                string
	Priority          int
	Type              string
	TriggeredBy       string
	JobID             string
	JobModifyIndex    uint64
	NodeID            string
	NodeModifyIndex   uint64
	Status            string
	StatusDescription string
	Wait              time.Duration
	NextEval          string
	PreviousEval      string
	BlockedEval       string
	FailedTGAllocs    map[string]*AllocationMetric
	CreateIndex       uint64
	ModifyIndex       uint64
}

Evaluation is used to serialize an evaluation.

type Evaluations 

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

Evaluations is used to query the evaluation endpoints.

func (*Evaluations) Allocations 

func (e *Evaluations) Allocations(evalID string, q *QueryOptions) ([]*AllocationListStub, *QueryMeta, error)

Allocations is used to retrieve a set of allocations given an evaluation ID.

func (*Evaluations) Info 

func (e *Evaluations) Info(evalID string, q *QueryOptions) (*Evaluation, *QueryMeta, error)

Info is used to query a single evaluation by its ID.

func (*Evaluations) List 

func (e *Evaluations) List(q *QueryOptions) ([]*Evaluation, *QueryMeta, error)

List is used to dump all of the evaluations.

func (*Evaluations) PrefixList added in v0.3.0 

func (e *Evaluations) PrefixList(prefix string) ([]*Evaluation, *QueryMeta, error)

type FieldDiff added in v0.4.0 

type FieldDiff struct {
	Type        string
	Name        string
	Old, New    string
	Annotations []string
}

type FrameReader added in v0.4.1 

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

FrameReader is used to convert a stream of frames into a read closer.

func NewFrameReader added in v0.4.1 

func NewFrameReader(frames <-chan *StreamFrame, cancelCh chan struct{}) *FrameReader

NewFrameReader takes a channel of frames and returns a FrameReader which implements io.ReadCloser

func (*FrameReader) Close added in v0.4.1 

func (f *FrameReader) Close() error

Close cancels the stream of frames

func (*FrameReader) Offset added in v0.4.1 

func (f *FrameReader) Offset() int

Offset returns the offset into the stream.

func (*FrameReader) Read added in v0.4.1 

func (f *FrameReader) Read(p []byte) (n int, err error)

Read reads the data of the incoming frames into the bytes buffer. Returns EOF when there are no more frames.

func (*FrameReader) SetUnblockTime added in v0.4.1 

func (f *FrameReader) SetUnblockTime(d time.Duration)

SetUnblockTime sets the time to unblock and return zero bytes read. If the duration is unset or is zero or less, the read will block til data is read.

type HostCPUStats added in v0.4.0 

type HostCPUStats struct {
	CPU    string
	User   float64
	System float64
	Idle   float64
}

type HostDiskStats added in v0.4.0 

type HostDiskStats struct {
	Device            string
	Mountpoint        string
	Size              uint64
	Used              uint64
	Available         uint64
	UsedPercent       float64
	InodesUsedPercent float64
}

type HostMemoryStats added in v0.4.0 

type HostMemoryStats struct {
	Total     uint64
	Available uint64
	Used      uint64
	Free      uint64
}

type HostStats added in v0.4.0 

type HostStats struct {
	Memory           *HostMemoryStats
	CPU              []*HostCPUStats
	DiskStats        []*HostDiskStats
	Uptime           uint64
	CPUTicksConsumed float64
}

HostStats represents resource usage stats of the host running a Nomad client

type HttpBasicAuth added in v0.4.1 

type HttpBasicAuth struct {
	// Username to use for HTTP Basic Authentication
	Username string

	// Password to use for HTTP Basic Authentication
	Password string
}

HttpBasicAuth is used to authenticate http client with HTTP Basic Authentication

type Job 

type Job struct {
	Region            string
	ID                string
	Name              string
	Type              string
	Priority          int
	AllAtOnce         bool
	Datacenters       []string
	Constraints       []*Constraint
	TaskGroups        []*TaskGroup
	Update            *UpdateStrategy
	Periodic          *PeriodicConfig
	Meta              map[string]string
	Status            string
	StatusDescription string
	CreateIndex       uint64
	ModifyIndex       uint64
	JobModifyIndex    uint64
}

Job is used to serialize a job.

func NewBatchJob 

func NewBatchJob(id, name, region string, pri int) *Job

NewBatchJob creates and returns a new batch-style job for short-lived processes using the provided name and ID along with the relative job priority.

func NewServiceJob 

func NewServiceJob(id, name, region string, pri int) *Job

NewServiceJob creates and returns a new service-style job for long-lived processes using the provided name, ID, and relative job priority.

func (*Job) AddDatacenter 

func (j *Job) AddDatacenter(dc string) *Job

AddDatacenter is used to add a datacenter to a job.

func (*Job) AddPeriodicConfig added in v0.3.0 

func (j *Job) AddPeriodicConfig(cfg *PeriodicConfig) *Job

AddPeriodicConfig adds a periodic config to an existing job.

func (*Job) AddTaskGroup 

func (j *Job) AddTaskGroup(grp *TaskGroup) *Job

AddTaskGroup adds a task group to an existing job.

func (*Job) Constrain 

func (j *Job) Constrain(c *Constraint) *Job

Constrain is used to add a constraint to a job.

func (*Job) SetMeta 

func (j *Job) SetMeta(key, val string) *Job

SetMeta is used to set arbitrary k/v pairs of metadata on a job.

type JobDiff added in v0.4.0 

type JobDiff struct {
	Type       string
	ID         string
	Fields     []*FieldDiff
	Objects    []*ObjectDiff
	TaskGroups []*TaskGroupDiff
}

type JobIDSort 

type JobIDSort []*JobListStub

JobIDSort is used to sort jobs by their job ID's.

func (JobIDSort) Len 

func (j JobIDSort) Len() int

func (JobIDSort) Less 

func (j JobIDSort) Less(a, b int) bool

func (JobIDSort) Swap 

func (j JobIDSort) Swap(a, b int)

type JobListStub 

type JobListStub struct {
	ID                string
	ParentID          string
	Name              string
	Type              string
	Priority          int
	Status            string
	StatusDescription string
	JobSummary        *JobSummary
	CreateIndex       uint64
	ModifyIndex       uint64
	JobModifyIndex    uint64
}

JobListStub is used to return a subset of information about jobs during list operations.

type JobPlanRequest added in v0.4.0 

type JobPlanRequest struct {
	Job  *Job
	Diff bool
}

type JobPlanResponse added in v0.4.0 

type JobPlanResponse struct {
	JobModifyIndex     uint64
	CreatedEvals       []*Evaluation
	Diff               *JobDiff
	Annotations        *PlanAnnotations
	FailedTGAllocs     map[string]*AllocationMetric
	NextPeriodicLaunch time.Time
}

type JobSummary added in v0.4.1 

type JobSummary struct {
	JobID   string
	Summary map[string]TaskGroupSummary

	// Raft Indexes
	CreateIndex uint64
	ModifyIndex uint64
}

JobSummary summarizes the state of the allocations of a job

type Jobs 

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

Jobs is used to access the job-specific endpoints.

func (*Jobs) Allocations 

func (j *Jobs) Allocations(jobID string, q *QueryOptions) ([]*AllocationListStub, *QueryMeta, error)

Allocations is used to return the allocs for a given job ID.

func (*Jobs) Deregister 

func (j *Jobs) Deregister(jobID string, q *WriteOptions) (string, *WriteMeta, error)

Deregister is used to remove an existing job.

func (*Jobs) EnforceRegister added in v0.4.0 

func (j *Jobs) EnforceRegister(job *Job, modifyIndex uint64, q *WriteOptions) (string, *WriteMeta, error)

EnforceRegister is used to register a job enforcing its job modify index.

func (*Jobs) Evaluations 

func (j *Jobs) Evaluations(jobID string, q *QueryOptions) ([]*Evaluation, *QueryMeta, error)

Evaluations is used to query the evaluations associated with the given job ID.

func (*Jobs) ForceEvaluate 

func (j *Jobs) ForceEvaluate(jobID string, q *WriteOptions) (string, *WriteMeta, error)

ForceEvaluate is used to force-evaluate an existing job.

func (*Jobs) Info 

func (j *Jobs) Info(jobID string, q *QueryOptions) (*Job, *QueryMeta, error)

Info is used to retrieve information about a particular job given its unique ID.

func (*Jobs) List 

func (j *Jobs) List(q *QueryOptions) ([]*JobListStub, *QueryMeta, error)

List is used to list all of the existing jobs.

func (*Jobs) PeriodicForce added in v0.3.0 

func (j *Jobs) PeriodicForce(jobID string, q *WriteOptions) (string, *WriteMeta, error)

PeriodicForce spawns a new instance of the periodic job and returns the eval ID

func (*Jobs) Plan added in v0.4.0 

func (j *Jobs) Plan(job *Job, diff bool, q *WriteOptions) (*JobPlanResponse, *WriteMeta, error)

func (*Jobs) PrefixList added in v0.3.0 

func (j *Jobs) PrefixList(prefix string) ([]*JobListStub, *QueryMeta, error)

PrefixList is used to list all existing jobs that match the prefix.

func (*Jobs) Register 

func (j *Jobs) Register(job *Job, q *WriteOptions) (string, *WriteMeta, error)

Register is used to register a new job. It returns the ID of the evaluation, along with any errors encountered.

func (*Jobs) Summary added in v0.4.1 

func (j *Jobs) Summary(jobID string, q *QueryOptions) (*JobSummary, *QueryMeta, error)

type LogConfig added in v0.3.0 

type LogConfig struct {
	MaxFiles      int
	MaxFileSizeMB int
}

LogConfig provides configuration for log rotation

type MemoryStats added in v0.4.0 

type MemoryStats struct {
	RSS            uint64
	Cache          uint64
	Swap           uint64
	MaxUsage       uint64
	KernelUsage    uint64
	KernelMaxUsage uint64
	Measured       []string
}

MemoryStats holds memory usage related stats

type NetworkResource 

type NetworkResource struct {
	Public        bool
	CIDR          string
	ReservedPorts []Port
	DynamicPorts  []Port
	IP            string
	MBits         int
}

NetworkResource is used to describe required network resources of a given task.

type Node 

type Node struct {
	ID                string
	Datacenter        string
	Name              string
	HTTPAddr          string
	Attributes        map[string]string
	Resources         *Resources
	Reserved          *Resources
	Links             map[string]string
	Meta              map[string]string
	NodeClass         string
	Drain             bool
	Status            string
	StatusDescription string
	StatusUpdatedAt   int64
	CreateIndex       uint64
	ModifyIndex       uint64
}

Node is used to deserialize a node entry.

type NodeIndexSort 

type NodeIndexSort []*NodeListStub

NodeIndexSort reverse sorts nodes by CreateIndex

func (NodeIndexSort) Len 

func (n NodeIndexSort) Len() int

func (NodeIndexSort) Less 

func (n NodeIndexSort) Less(i, j int) bool

func (NodeIndexSort) Swap 

func (n NodeIndexSort) Swap(i, j int)

type NodeListStub 

type NodeListStub struct {
	ID                string
	Datacenter        string
	Name              string
	NodeClass         string
	Drain             bool
	Status            string
	StatusDescription string
	CreateIndex       uint64
	ModifyIndex       uint64
}

NodeListStub is a subset of information returned during node list operations.

type Nodes 

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

Nodes is used to query node-related API endpoints

func (*Nodes) Allocations 

func (n *Nodes) Allocations(nodeID string, q *QueryOptions) ([]*Allocation, *QueryMeta, error)

Allocations is used to return the allocations associated with a node.

func (*Nodes) ForceEvaluate 

func (n *Nodes) ForceEvaluate(nodeID string, q *WriteOptions) (string, *WriteMeta, error)

ForceEvaluate is used to force-evaluate an existing node.

func (*Nodes) Info 

func (n *Nodes) Info(nodeID string, q *QueryOptions) (*Node, *QueryMeta, error)

Info is used to query a specific node by its ID.

func (*Nodes) List 

func (n *Nodes) List(q *QueryOptions) ([]*NodeListStub, *QueryMeta, error)

List is used to list out all of the nodes

func (*Nodes) PrefixList added in v0.3.0 

func (n *Nodes) PrefixList(prefix string) ([]*NodeListStub, *QueryMeta, error)

func (*Nodes) Stats added in v0.4.0 

func (n *Nodes) Stats(nodeID string, q *QueryOptions) (*HostStats, error)

func (*Nodes) ToggleDrain 

func (n *Nodes) ToggleDrain(nodeID string, drain bool, q *WriteOptions) (*WriteMeta, error)

ToggleDrain is used to toggle drain mode on/off for a given node.

type ObjectDiff added in v0.4.0 

type ObjectDiff struct {
	Type    string
	Name    string
	Fields  []*FieldDiff
	Objects []*ObjectDiff
}

type PeriodicConfig added in v0.3.0 

type PeriodicConfig struct {
	Enabled         bool
	Spec            string
	SpecType        string
	ProhibitOverlap bool
}

PeriodicConfig is for serializing periodic config for a job.

type PlanAnnotations added in v0.4.0 

type PlanAnnotations struct {
	DesiredTGUpdates map[string]*DesiredUpdates
}

type Port added in v0.2.0 

type Port struct {
	Label string
	Value int
}

type QueryMeta 

type QueryMeta struct {
	// LastIndex. This can be used as a WaitIndex to perform
	// a blocking query
	LastIndex uint64

	// Time of last contact from the leader for the
	// server servicing the request
	LastContact time.Duration

	// Is there a known leader
	KnownLeader bool

	// How long did the request take
	RequestTime time.Duration
}

QueryMeta is used to return meta data about a query

type QueryOptions 

type QueryOptions struct {
	// Providing a datacenter overwrites the region provided
	// by the Config
	Region string

	// AllowStale allows any Nomad server (non-leader) to service
	// a read. This allows for lower latency and higher throughput
	AllowStale bool

	// WaitIndex is used to enable a blocking query. Waits
	// until the timeout or the next index is reached
	WaitIndex uint64

	// WaitTime is used to bound the duration of a wait.
	// Defaults to that of the Config, but can be overridden.
	WaitTime time.Duration

	// If set, used as prefix for resource list searches
	Prefix string

	// Set HTTP parameters on the query.
	Params map[string]string
}

QueryOptions are used to parameterize a query

type Raw 

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

Raw can be used to do raw queries against custom endpoints

func (*Raw) Delete 

func (raw *Raw) Delete(endpoint string, out interface{}, q *WriteOptions) (*WriteMeta, error)

Delete is used to do a DELETE request against an endpoint and serialize/deserialized using the standard Nomad conventions.

func (*Raw) Query 

func (raw *Raw) Query(endpoint string, out interface{}, q *QueryOptions) (*QueryMeta, error)

Query is used to do a GET request against an endpoint and deserialize the response into an interface using standard Nomad conventions.

func (*Raw) Write 

func (raw *Raw) Write(endpoint string, in, out interface{}, q *WriteOptions) (*WriteMeta, error)

Write is used to do a PUT request against an endpoint and serialize/deserialized using the standard Nomad conventions.

type Regions added in v0.2.1 

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

Regions is used to query the regions in the cluster.

func (*Regions) List added in v0.2.1 

func (r *Regions) List() ([]string, error)

List returns a list of all of the regions.

type RegisterJobRequest added in v0.3.2 

type RegisterJobRequest struct {
	Job            *Job
	EnforceIndex   bool   `json:",omitempty"`
	JobModifyIndex uint64 `json:",omitempty"`
}

RegisterJobRequest is used to serialize a job registration

type ResourceUsage added in v0.4.0 

type ResourceUsage struct {
	MemoryStats *MemoryStats
	CpuStats    *CpuStats
}

ResourceUsage holds information related to cpu and memory stats

type Resources 

type Resources struct {
	CPU      int
	MemoryMB int
	DiskMB   int
	IOPS     int
	Networks []*NetworkResource
}

Resources encapsulates the required resources of a given task or task group.

type RestartPolicy added in v0.2.0 

type RestartPolicy struct {
	Interval time.Duration
	Attempts int
	Delay    time.Duration
	Mode     string
}

RestartPolicy defines how the Nomad client restarts tasks in a taskgroup when they fail

type Service added in v0.2.0 

type Service struct {
	Id        string
	Name      string
	Tags      []string
	PortLabel string `mapstructure:"port"`
	Checks    []ServiceCheck
}

The Service model represents a Consul service definition

type ServiceCheck added in v0.2.0 

type ServiceCheck struct {
	Id        string
	Name      string
	Type      string
	Command   string
	Args      []string
	Path      string
	Protocol  string `mapstructure:"port"`
	PortLabel string `mapstructure:"port"`
	Interval  time.Duration
	Timeout   time.Duration
}

The ServiceCheck data model represents the consul health check that Nomad registers for a Task

type Status 

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

Status is used to query the status-related endpoints.

func (*Status) Leader 

func (s *Status) Leader() (string, error)

Leader is used to query for the current cluster leader.

func (*Status) Peers 

func (s *Status) Peers() ([]string, error)

Peers is used to query the addresses of the server peers in the cluster.

func (*Status) RegionLeader added in v0.3.2 

func (s *Status) RegionLeader(region string) (string, error)

RegionLeader is used to query for the leader in the passed region.

type StreamFrame added in v0.4.1 

type StreamFrame struct {
	Offset    int64  `json:",omitempty"`
	Data      []byte `json:",omitempty"`
	File      string `json:",omitempty"`
	FileEvent string `json:",omitempty"`
}

StreamFrame is used to frame data of a file when streaming

func (*StreamFrame) IsHeartbeat added in v0.4.1 

func (s *StreamFrame) IsHeartbeat() bool

IsHeartbeat returns if the frame is a heartbeat frame

type System added in v0.3.0 

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

Status is used to query the status-related endpoints.

func (*System) GarbageCollect added in v0.3.0 

func (s *System) GarbageCollect() error

type Task 

type Task struct {
	Name        string
	Driver      string
	User        string
	Config      map[string]interface{}
	Constraints []*Constraint
	Env         map[string]string
	Services    []Service
	Resources   *Resources
	Meta        map[string]string
	KillTimeout time.Duration
	LogConfig   *LogConfig
	Artifacts   []*TaskArtifact
}

Task is a single process in a task group.

func NewTask 

func NewTask(name, driver string) *Task

NewTask creates and initializes a new Task.

func (*Task) Constrain 

func (t *Task) Constrain(c *Constraint) *Task

Constraint adds a new constraints to a single task.

func (*Task) Require 

func (t *Task) Require(r *Resources) *Task

Require is used to add resource requirements to a task.

func (*Task) SetConfig 

func (t *Task) SetConfig(key, val string) *Task

Configure is used to configure a single k/v pair on the task.

func (*Task) SetLogConfig added in v0.3.0 

func (t *Task) SetLogConfig(l *LogConfig) *Task

SetLogConfig sets a log config to a task

func (*Task) SetMeta 

func (t *Task) SetMeta(key, val string) *Task

SetMeta is used to add metadata k/v pairs to the task.

type TaskArtifact added in v0.3.1 

type TaskArtifact struct {
	GetterSource  string
	GetterOptions map[string]string
	RelativeDest  string
}

TaskArtifact is used to download artifacts before running a task.

type TaskDiff added in v0.4.0 

type TaskDiff struct {
	Type        string
	Name        string
	Fields      []*FieldDiff
	Objects     []*ObjectDiff
	Annotations []string
}

type TaskEvent added in v0.2.0 

type TaskEvent struct {
	Type            string
	Time            int64
	RestartReason   string
	DriverError     string
	ExitCode        int
	Signal          int
	Message         string
	KillTimeout     time.Duration
	KillError       string
	StartDelay      int64
	DownloadError   string
	ValidationError string
}

TaskEvent is an event that effects the state of a task and contains meta-data appropriate to the events type.

type TaskGroup 

type TaskGroup struct {
	Name          string
	Count         int
	Constraints   []*Constraint
	Tasks         []*Task
	RestartPolicy *RestartPolicy
	Meta          map[string]string
}

TaskGroup is the unit of scheduling.

func NewTaskGroup 

func NewTaskGroup(name string, count int) *TaskGroup

NewTaskGroup creates a new TaskGroup.

func (*TaskGroup) AddTask 

func (g *TaskGroup) AddTask(t *Task) *TaskGroup

AddTask is used to add a new task to a task group.

func (*TaskGroup) Constrain 

func (g *TaskGroup) Constrain(c *Constraint) *TaskGroup

Constrain is used to add a constraint to a task group.

func (*TaskGroup) SetMeta 

func (g *TaskGroup) SetMeta(key, val string) *TaskGroup

AddMeta is used to add a meta k/v pair to a task group

type TaskGroupDiff added in v0.4.0 

type TaskGroupDiff struct {
	Type    string
	Name    string
	Fields  []*FieldDiff
	Objects []*ObjectDiff
	Tasks   []*TaskDiff
	Updates map[string]uint64
}

type TaskGroupSummary added in v0.4.1 

type TaskGroupSummary struct {
	Queued   int
	Complete int
	Failed   int
	Running  int
	Starting int
	Lost     int
}

TaskGroup summarizes the state of all the allocations of a particular TaskGroup

type TaskResourceUsage added in v0.4.0 

type TaskResourceUsage struct {
	ResourceUsage *ResourceUsage
	Timestamp     int64
	Pids          map[string]*ResourceUsage
}

TaskResourceUsage holds aggregated resource usage of all processes in a Task and the resource usage of the individual pids

type TaskState added in v0.2.0 

type TaskState struct {
	State  string
	Events []*TaskEvent
}

TaskState tracks the current state of a task and events that caused state transitions.

type UpdateStrategy added in v0.2.0 

type UpdateStrategy struct {
	Stagger     time.Duration
	MaxParallel int
}

UpdateStrategy is for serializing update strategy for a job.

type WriteMeta 

type WriteMeta struct {
	// LastIndex. This can be used as a WaitIndex to perform
	// a blocking query
	LastIndex uint64

	// How long did the request take
	RequestTime time.Duration
}

WriteMeta is used to return meta data about a write

type WriteOptions 

type WriteOptions struct {
	// Providing a datacenter overwrites the region provided
	// by the Config
	Region string
}

WriteOptions are used to parameterize a write

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.