workceptor

package
v1.4.10 Latest Latest
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 Go to latest Published: Nov 15, 2024 License: Apache-2.0 Imports: 50 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	SuccessWorkSleep = 1 * time.Second // Normal time to wait between checks
	MaxWorkSleep     = 1 * time.Minute // Max time to ever wait between checks
)

Work sleep constants.

View Source 
const (
	WorkStatePending   = 0
	WorkStateRunning   = 1
	WorkStateSucceeded = 2
	WorkStateFailed    = 3
	WorkStateCanceled  = 4
)

Work state constants.

Variables

View Source 
var ErrImagePullBackOff = fmt.Errorf("container failed to start")

ErrImagePullBackOff is returned when the image for the container in the Pod cannot be pulled.

View Source 
var ErrPending = fmt.Errorf("operation pending")

ErrPending is returned when an operation hasn't succeeded or failed yet.

View Source 
var ErrPodCompleted = fmt.Errorf("pod ran to completion")

ErrPodCompleted is returned when pod has already completed before we could attach.

View Source 
var ErrPodFailed = fmt.Errorf("pod failed to start")

ErrPodFailed is returned when pod has failed before we could attach.

View Source 
var KubeAPIWrapperLock *sync.RWMutex

Functions

func IsCompatibleK8S added in v1.4.5 

func IsCompatibleK8S(kw *KubeUnit, versionStr string) bool

func IsComplete 

func IsComplete(workState int) bool

IsComplete returns true if a given WorkState indicates the job is finished.

func IsPending 

func IsPending(err error) bool

IsPending returns true if the error is an ErrPending.

func ParseTime added in v1.4.5 

func ParseTime(s string) *time.Time

func ShouldUseReconnect added in v1.4.5 

func ShouldUseReconnect(kw *KubeUnit) bool

func WorkStateToString 

func WorkStateToString(workState int) string

WorkStateToString returns a string representation of a WorkState.

Types

type BaseWorkUnit 

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

BaseWorkUnit includes data common to all work units, and partially implements the WorkUnit interface.

func (*BaseWorkUnit) CancelContext added in v1.4.2 

func (bwu *BaseWorkUnit) CancelContext()

func (*BaseWorkUnit) Debug added in v1.3.0 

func (bwu *BaseWorkUnit) Debug(format string, v ...interface{})

Debug logs message with unitID prepended.

func (*BaseWorkUnit) Error added in v1.3.0 

func (bwu *BaseWorkUnit) Error(format string, v ...interface{})

Error logs message with unitID prepended.

func (*BaseWorkUnit) GetCancel added in v1.4.4 

func (bwu *BaseWorkUnit) GetCancel() context.CancelFunc

func (*BaseWorkUnit) GetContext added in v1.4.4 

func (bwu *BaseWorkUnit) GetContext() context.Context

func (*BaseWorkUnit) GetStatusCopy added in v1.4.4 

func (bwu *BaseWorkUnit) GetStatusCopy() StatusFileData

func (*BaseWorkUnit) GetStatusLock added in v1.4.4 

func (bwu *BaseWorkUnit) GetStatusLock() *sync.RWMutex

func (*BaseWorkUnit) GetStatusWithoutExtraData added in v1.4.4 

func (bwu *BaseWorkUnit) GetStatusWithoutExtraData() *StatusFileData

func (*BaseWorkUnit) GetWorkceptor added in v1.4.4 

func (bwu *BaseWorkUnit) GetWorkceptor() *Workceptor

func (*BaseWorkUnit) ID 

func (bwu *BaseWorkUnit) ID() string

ID returns the unique identifier of this work unit.

func (*BaseWorkUnit) Info added in v1.3.0 

func (bwu *BaseWorkUnit) Info(format string, v ...interface{})

Info logs message with unitID prepended.

func (*BaseWorkUnit) Init 

func (bwu *BaseWorkUnit) Init(w *Workceptor, unitID string, workType string, fs FileSystemer, watcher WatcherWrapper)

Init initializes the basic work unit data, in memory only.

func (*BaseWorkUnit) LastUpdateError 

func (bwu *BaseWorkUnit) LastUpdateError() error

LastUpdateError returns the last error (including nil) resulting from an UpdateBasicStatus or UpdateFullStatus.

func (*BaseWorkUnit) Load 

func (bwu *BaseWorkUnit) Load() error

Load loads status from a file.

func (*BaseWorkUnit) MonitorLocalStatus added in v1.4.2 

func (bwu *BaseWorkUnit) MonitorLocalStatus()

MonitorLocalStatus watches a unit dir and keeps the in-memory workUnit up to date with status changes.

func (*BaseWorkUnit) Release 

func (bwu *BaseWorkUnit) Release(force bool) error

Release releases this unit of work, deleting its files.

func (*BaseWorkUnit) Save 

func (bwu *BaseWorkUnit) Save() error

Save saves status to a file.

func (*BaseWorkUnit) SetFromParams 

func (bwu *BaseWorkUnit) SetFromParams(_ map[string]string) error

SetFromParams sets the in-memory state from parameters.

func (*BaseWorkUnit) SetStatusExtraData added in v1.4.4 

func (bwu *BaseWorkUnit) SetStatusExtraData(ed interface{})

func (*BaseWorkUnit) SetWorkceptor added in v1.4.4 

func (bwu *BaseWorkUnit) SetWorkceptor(w *Workceptor)

func (*BaseWorkUnit) Status 

func (bwu *BaseWorkUnit) Status() *StatusFileData

Status returns a copy of the status currently loaded in memory (use Load to get it from disk).

func (*BaseWorkUnit) StatusFileName 

func (bwu *BaseWorkUnit) StatusFileName() string

StatusFileName returns the full path to the status file in the unit dir.

func (*BaseWorkUnit) StdoutFileName 

func (bwu *BaseWorkUnit) StdoutFileName() string

StdoutFileName returns the full path to the stdout file in the unit dir.

func (*BaseWorkUnit) UnitDir 

func (bwu *BaseWorkUnit) UnitDir() string

UnitDir returns the unit directory of this work unit.

func (*BaseWorkUnit) UnredactedStatus 

func (bwu *BaseWorkUnit) UnredactedStatus() *StatusFileData

UnredactedStatus returns a copy of the status currently loaded in memory, including secrets.

func (*BaseWorkUnit) UpdateBasicStatus 

func (bwu *BaseWorkUnit) UpdateBasicStatus(state int, detail string, stdoutSize int64)

UpdateBasicStatus atomically updates key fields in the status metadata file. Errors are logged rather than returned. Passing -1 as stdoutSize leaves it unchanged.

func (*BaseWorkUnit) UpdateFullStatus 

func (bwu *BaseWorkUnit) UpdateFullStatus(statusFunc func(*StatusFileData))

UpdateFullStatus atomically updates the whole status record. Changes should be made in the callback function. Errors are logged rather than returned.

func (*BaseWorkUnit) Warning added in v1.3.0 

func (bwu *BaseWorkUnit) Warning(format string, v ...interface{})

Warning logs message with unitID prepended.

type BaseWorkUnitForWorkUnit added in v1.4.4 

type BaseWorkUnitForWorkUnit interface {
	CancelContext()
	ID() string
	Init(w *Workceptor, unitID string, workType string, fs FileSystemer, watcher WatcherWrapper)
	LastUpdateError() error
	Load() error
	MonitorLocalStatus()
	Release(force bool) error
	Save() error
	SetFromParams(_ map[string]string) error
	Status() *StatusFileData
	StatusFileName() string
	StdoutFileName() string
	UnitDir() string
	UnredactedStatus() *StatusFileData
	UpdateBasicStatus(state int, detail string, stdoutSize int64)
	UpdateFullStatus(statusFunc func(*StatusFileData))
	GetStatusCopy() StatusFileData
	GetStatusWithoutExtraData() *StatusFileData
	SetStatusExtraData(interface{})
	GetStatusLock() *sync.RWMutex
	GetWorkceptor() *Workceptor
	SetWorkceptor(*Workceptor)
	GetContext() context.Context
	GetCancel() context.CancelFunc
}

type CommandExtraData added in v1.4.4 

type CommandExtraData struct {
	Pid    int
	Params string
}

CommandExtraData is the content of the ExtraData JSON field for a command worker.

type CommandWorkerCfg added in v1.4.0 

type CommandWorkerCfg struct {
	WorkType           string `required:"true" description:"Name for this worker type"`
	Command            string `required:"true" description:"Command to run to process units of work"`
	Params             string `description:"Command-line parameters"`
	AllowRuntimeParams bool   `description:"Allow users to add more parameters" default:"false"`
	VerifySignature    bool   `description:"Verify a signed work submission" default:"false"`
}

CommandWorkerCfg is the cmdline configuration object for a worker that runs a command.

func (CommandWorkerCfg) GetVerifySignature added in v1.4.0 

func (cfg CommandWorkerCfg) GetVerifySignature() bool

func (CommandWorkerCfg) GetWorkType added in v1.4.0 

func (cfg CommandWorkerCfg) GetWorkType() string

func (CommandWorkerCfg) NewWorker added in v1.4.0 

func (cfg CommandWorkerCfg) NewWorker(bwu BaseWorkUnitForWorkUnit, w *Workceptor, unitID string, workType string) WorkUnit

func (CommandWorkerCfg) Run added in v1.4.0 

func (cfg CommandWorkerCfg) Run() error

Run runs the action.

type FileReadCloser added in v1.4.2 

type FileReadCloser interface {
	io.ReadCloser
}

FileReadCloser wraps io.ReadCloser.

type FileSystem added in v1.4.2 

type FileSystem struct{}

FileSystem represents the real filesystem.

func (FileSystem) Open added in v1.4.2 

func (FileSystem) Open(name string) (*os.File, error)

Open opens a file.

func (FileSystem) OpenFile added in v1.4.2 

func (FileSystem) OpenFile(name string, flag int, perm os.FileMode) (*os.File, error)

OpenFile opens a file on the filesystem.

func (FileSystem) RemoveAll added in v1.4.2 

func (FileSystem) RemoveAll(path string) error

RemoveAll removes path and any children it contains.

func (FileSystem) Stat added in v1.4.2 

func (FileSystem) Stat(name string) (os.FileInfo, error)

Stat retrieves the FileInfo for a given file name.

type FileSystemer added in v1.4.2 

type FileSystemer interface {
	OpenFile(name string, flag int, perm os.FileMode) (*os.File, error)
	Stat(name string) (os.FileInfo, error)
	Open(name string) (*os.File, error)
	RemoveAll(path string) error
}

FileSystemer represents a filesystem.

type FileWriteCloser added in v1.4.2 

type FileWriteCloser interface {
	io.WriteCloser
}

FileWriteCloser wraps io.WriteCloser.

type KubeAPIWrapper added in v1.4.5 

type KubeAPIWrapper struct{}

func (KubeAPIWrapper) BuildConfigFromFlags added in v1.4.5 

func (ku KubeAPIWrapper) BuildConfigFromFlags(masterURL string, kubeconfigPath string) (*rest.Config, error)

func (KubeAPIWrapper) Create added in v1.4.5 

func (ku KubeAPIWrapper) Create(ctx context.Context, clientset *kubernetes.Clientset, namespace string, pod *corev1.Pod, opts metav1.CreateOptions) (*corev1.Pod, error)

func (KubeAPIWrapper) Delete added in v1.4.5 

func (ku KubeAPIWrapper) Delete(ctx context.Context, clientset *kubernetes.Clientset, namespace string, name string, opts metav1.DeleteOptions) error

func (KubeAPIWrapper) Get added in v1.4.5 

func (ku KubeAPIWrapper) Get(ctx context.Context, clientset *kubernetes.Clientset, namespace string, name string, opts metav1.GetOptions) (*corev1.Pod, error)

func (KubeAPIWrapper) GetLogs added in v1.4.5 

func (ku KubeAPIWrapper) GetLogs(clientset *kubernetes.Clientset, namespace string, name string, opts *corev1.PodLogOptions) *rest.Request

func (KubeAPIWrapper) InClusterConfig added in v1.4.5 

func (ku KubeAPIWrapper) InClusterConfig() (*rest.Config, error)

func (KubeAPIWrapper) List added in v1.4.5 

func (ku KubeAPIWrapper) List(ctx context.Context, clientset *kubernetes.Clientset, namespace string, opts metav1.ListOptions) (*corev1.PodList, error)

func (KubeAPIWrapper) NewClientConfigFromBytes added in v1.4.5 

func (ku KubeAPIWrapper) NewClientConfigFromBytes(configBytes []byte) (clientcmd.ClientConfig, error)

func (KubeAPIWrapper) NewDefaultClientConfigLoadingRules added in v1.4.5 

func (ku KubeAPIWrapper) NewDefaultClientConfigLoadingRules() *clientcmd.ClientConfigLoadingRules

func (KubeAPIWrapper) NewFakeAlwaysRateLimiter added in v1.4.5 

func (ku KubeAPIWrapper) NewFakeAlwaysRateLimiter() flowcontrol.RateLimiter

func (KubeAPIWrapper) NewFakeNeverRateLimiter added in v1.4.5 

func (ku KubeAPIWrapper) NewFakeNeverRateLimiter() flowcontrol.RateLimiter

func (KubeAPIWrapper) NewForConfig added in v1.4.5 

func (ku KubeAPIWrapper) NewForConfig(c *rest.Config) (*kubernetes.Clientset, error)

func (KubeAPIWrapper) NewNotFound added in v1.4.5 

func (ku KubeAPIWrapper) NewNotFound(qualifiedResource schema.GroupResource, name string) *apierrors.StatusError

func (KubeAPIWrapper) NewSPDYExecutor added in v1.4.5 

func (ku KubeAPIWrapper) NewSPDYExecutor(config *rest.Config, method string, url *url.URL) (remotecommand.Executor, error)

func (KubeAPIWrapper) OneTermEqualSelector added in v1.4.5 

func (ku KubeAPIWrapper) OneTermEqualSelector(k string, v string) fields.Selector

func (KubeAPIWrapper) StreamWithContext added in v1.4.5 

func (ku KubeAPIWrapper) StreamWithContext(ctx context.Context, exec remotecommand.Executor, options remotecommand.StreamOptions) error

func (KubeAPIWrapper) SubResource added in v1.4.5 

func (ku KubeAPIWrapper) SubResource(clientset *kubernetes.Clientset, podName string, podNamespace string) *rest.Request

func (KubeAPIWrapper) UntilWithSync added in v1.4.5 

func (ku KubeAPIWrapper) UntilWithSync(ctx context.Context, lw cache.ListerWatcher, objType runtime.Object, precondition watch2.PreconditionFunc, conditions ...watch2.ConditionFunc) (*watch.Event, error)

func (KubeAPIWrapper) Watch added in v1.4.5 

func (ku KubeAPIWrapper) Watch(ctx context.Context, clientset *kubernetes.Clientset, namespace string, opts metav1.ListOptions) (watch.Interface, error)

type KubeAPIer added in v1.4.5 

type KubeAPIer interface {
	NewNotFound(schema.GroupResource, string) *apierrors.StatusError
	OneTermEqualSelector(string, string) fields.Selector
	NewForConfig(*rest.Config) (*kubernetes.Clientset, error)
	GetLogs(*kubernetes.Clientset, string, string, *corev1.PodLogOptions) *rest.Request
	Get(context.Context, *kubernetes.Clientset, string, string, metav1.GetOptions) (*corev1.Pod, error)
	Create(context.Context, *kubernetes.Clientset, string, *corev1.Pod, metav1.CreateOptions) (*corev1.Pod, error)
	List(context.Context, *kubernetes.Clientset, string, metav1.ListOptions) (*corev1.PodList, error)
	Watch(context.Context, *kubernetes.Clientset, string, metav1.ListOptions) (watch.Interface, error)
	Delete(context.Context, *kubernetes.Clientset, string, string, metav1.DeleteOptions) error
	SubResource(*kubernetes.Clientset, string, string) *rest.Request
	InClusterConfig() (*rest.Config, error)
	NewDefaultClientConfigLoadingRules() *clientcmd.ClientConfigLoadingRules
	BuildConfigFromFlags(string, string) (*rest.Config, error)
	NewClientConfigFromBytes([]byte) (clientcmd.ClientConfig, error)
	NewSPDYExecutor(*rest.Config, string, *url.URL) (remotecommand.Executor, error)
	StreamWithContext(context.Context, remotecommand.Executor, remotecommand.StreamOptions) error
	UntilWithSync(context.Context, cache.ListerWatcher, runtime.Object, watch2.PreconditionFunc, ...watch2.ConditionFunc) (*watch.Event, error)
	NewFakeNeverRateLimiter() flowcontrol.RateLimiter
	NewFakeAlwaysRateLimiter() flowcontrol.RateLimiter
}
var KubeAPIWrapperInstance KubeAPIer

KubeAPIWrapperInstance is a package level var that wraps all required kubernetes API calls. It is instantiated in the NewkubeWorker function and available throughout the package.

type KubeExtraData added in v1.4.5 

type KubeExtraData struct {
	Image         string
	Command       string
	Params        string
	KubeNamespace string
	KubeConfig    string
	KubePod       string
	PodName       string
}

kubeExtraData is the content of the ExtraData JSON field for a Kubernetes worker.

type KubeUnit added in v1.4.5 

type KubeUnit struct {
	BaseWorkUnitForWorkUnit
	// contains filtered or unexported fields
}

KubeUnit implements the WorkUnit interface.

func (*KubeUnit) Cancel added in v1.4.5 

func (kw *KubeUnit) Cancel() error

Cancel releases resources associated with a job, including cancelling it if running.

func (*KubeUnit) Release added in v1.4.5 

func (kw *KubeUnit) Release(force bool) error

Release releases resources associated with a job. Implies Cancel.

func (*KubeUnit) Restart added in v1.4.5 

func (kw *KubeUnit) Restart() error

Restart resumes monitoring a job after a Receptor restart.

func (*KubeUnit) SetFromParams added in v1.4.5 

func (kw *KubeUnit) SetFromParams(params map[string]string) error

SetFromParams sets the in-memory state from parameters.

func (*KubeUnit) Start added in v1.4.5 

func (kw *KubeUnit) Start() error

Start launches a job with given parameters.

func (*KubeUnit) Status added in v1.4.5 

func (kw *KubeUnit) Status() *StatusFileData

Status returns a copy of the status currently loaded in memory.

func (*KubeUnit) UnredactedStatus added in v1.4.5 

func (kw *KubeUnit) UnredactedStatus() *StatusFileData

Status returns a copy of the status currently loaded in memory.

type KubeWorkerCfg added in v1.4.0 

type KubeWorkerCfg struct {
	WorkType            string `required:"true" description:"Name for this worker type"`
	Namespace           string `description:"Kubernetes namespace to create pods in"`
	Image               string `description:"Container image to use for the worker pod"`
	Command             string `description:"Command to run in the container (overrides entrypoint)"`
	Params              string `description:"Command-line parameters to pass to the entrypoint"`
	AuthMethod          string `description:"One of: kubeconfig, incluster" default:"incluster"`
	KubeConfig          string `description:"Kubeconfig filename (for authmethod=kubeconfig)"`
	Pod                 string `description:"Pod definition filename, in json or yaml format"`
	AllowRuntimeAuth    bool   `description:"Allow passing API parameters at runtime" default:"false"`
	AllowRuntimeCommand bool   `description:"Allow specifying image & command at runtime" default:"false"`
	AllowRuntimeParams  bool   `description:"Allow adding command parameters at runtime" default:"false"`
	AllowRuntimePod     bool   `description:"Allow passing Pod at runtime" default:"false"`
	DeletePodOnRestart  bool   `description:"On restart, delete the pod if in pending state" default:"true"`
	StreamMethod        string `description:"Method for connecting to worker pods: logger or tcp" default:"logger"`
	VerifySignature     bool   `description:"Verify a signed work submission" default:"false"`
}

KubeWorkerCfg is the cmdline configuration object for a Kubernetes worker plugin.

func (KubeWorkerCfg) GetVerifySignature added in v1.4.0 

func (cfg KubeWorkerCfg) GetVerifySignature() bool

func (KubeWorkerCfg) GetWorkType added in v1.4.0 

func (cfg KubeWorkerCfg) GetWorkType() string

func (KubeWorkerCfg) NewWorker added in v1.4.0 

func (cfg KubeWorkerCfg) NewWorker(bwu BaseWorkUnitForWorkUnit, w *Workceptor, unitID string, workType string) WorkUnit

NewWorker is a factory to produce worker instances.

func (KubeWorkerCfg) NewkubeWorker added in v1.4.5 

func (cfg KubeWorkerCfg) NewkubeWorker(bwu BaseWorkUnitForWorkUnit, w *Workceptor, unitID string, workType string, kawi KubeAPIer) WorkUnit

func (KubeWorkerCfg) Prepare added in v1.4.0 

func (cfg KubeWorkerCfg) Prepare() error

Prepare inspects the configuration for validity.

func (KubeWorkerCfg) Run added in v1.4.0 

func (cfg KubeWorkerCfg) Run() error

Run runs the action.

type NetceptorForWorkceptor added in v1.4.2 

type NetceptorForWorkceptor interface {
	NodeID() string
	AddWorkCommand(typeName string, verifySignature bool) error
	GetClientTLSConfig(name string, expectedHostName string, expectedHostNameType netceptor.ExpectedHostnameType) (*tls.Config, error) // have a common pkg for types
	GetLogger() *logger.ReceptorLogger
	DialContext(ctx context.Context, node string, service string, tlscfg *tls.Config) (*netceptor.Conn, error) // create an interface for Conn
}

NetceptorForWorkceptor is a interface to decouple workceptor from netceptor. it includes only the functions that workceptor uses.

type NewWorkerFunc 

type NewWorkerFunc func(bwu BaseWorkUnitForWorkUnit, w *Workceptor, unitID string, workType string) WorkUnit

NewWorkerFunc represents a factory of WorkUnit instances.

type RealWatcher added in v1.4.2 

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

func (*RealWatcher) Add added in v1.4.2 

func (rw *RealWatcher) Add(name string) error

func (*RealWatcher) Close added in v1.4.2 

func (rw *RealWatcher) Close() error

func (*RealWatcher) ErrorChannel added in v1.4.10 

func (rw *RealWatcher) ErrorChannel() chan error

func (*RealWatcher) EventChannel added in v1.4.2 

func (rw *RealWatcher) EventChannel() chan fsnotify.Event

type RemoteExtraData added in v1.4.4 

type RemoteExtraData struct {
	RemoteNode     string
	RemoteWorkType string
	RemoteParams   map[string]string
	RemoteUnitID   string
	RemoteStarted  bool
	LocalCancelled bool
	LocalReleased  bool
	SignWork       bool
	TLSClient      string
	Expiration     time.Time
}

RemoteExtraData is the content of the ExtraData JSON field for a remote work unit.

type STDinReader added in v1.4.2 

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

STDinReader reads from a stdin file and provides a Done function.

func NewStdinReader added in v1.4.2 

func NewStdinReader(fs FileSystemer, unitdir string) (*STDinReader, error)

NewStdinReader allocates a new stdinReader, which reads from a stdin file and provides a Done function.

func (*STDinReader) Done added in v1.4.2 

func (sr *STDinReader) Done() <-chan struct{}

Done returns a channel that will be closed on error (including EOF) in the reader.

func (*STDinReader) Error added in v1.4.2 

func (sr *STDinReader) Error() error

Error returns the most recent error encountered in the reader.

func (*STDinReader) Read added in v1.4.2 

func (sr *STDinReader) Read(p []byte) (n int, err error)

Read reads data from the stdout file, implementing io.Reader.

func (*STDinReader) SetReader added in v1.4.2 

func (sr *STDinReader) SetReader(reader FileReadCloser)

SetReader sets the reader var.

type STDoutWriter added in v1.4.2 

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

STDoutWriter writes to a stdout file while also updating the status file.

func NewStdoutWriter added in v1.4.2 

func NewStdoutWriter(fs FileSystemer, unitdir string) (*STDoutWriter, error)

NewStdoutWriter allocates a new stdoutWriter, which writes to both the stdout and status files.

func (*STDoutWriter) SetWriter added in v1.4.2 

func (sw *STDoutWriter) SetWriter(writer FileWriteCloser)

SetWriter sets the writer var.

func (*STDoutWriter) Size added in v1.4.2 

func (sw *STDoutWriter) Size() int64

Size returns the current size of the stdout file.

func (*STDoutWriter) Write added in v1.4.2 

func (sw *STDoutWriter) Write(p []byte) (n int, err error)

Write writes data to the stdout file and status file, implementing io.Writer.

type ServerForWorkceptor added in v1.4.4 

type ServerForWorkceptor interface {
	AddControlFunc(name string, cType controlsvc.ControlCommandType) error
	ConnectionListener(ctx context.Context, listener net.Listener)
	RunControlSession(conn net.Conn)
	RunControlSvc(ctx context.Context, service string, tlscfg *tls.Config, unixSocket string, unixSocketPermissions fs.FileMode, tcpListen string, tcptls *tls.Config) error
	SetServerNet(n controlsvc.Neter)
	SetServerTLS(t controlsvc.Tlser)
	SetServerUtils(u controlsvc.Utiler)
	SetupConnection(conn net.Conn)
}

type SigningKeyPrivateCfg added in v1.4.0 

type SigningKeyPrivateCfg struct {
	PrivateKey      string `description:"Private key to sign work submissions" barevalue:"yes" default:""`
	TokenExpiration string `description:"Expiration of the signed json web token, e.g. 3h or 3h30m" default:""`
}

func (SigningKeyPrivateCfg) Prepare added in v1.4.0 

func (cfg SigningKeyPrivateCfg) Prepare() error

func (SigningKeyPrivateCfg) PrepareSigningKeyPrivateCfg added in v1.4.0 

func (cfg SigningKeyPrivateCfg) PrepareSigningKeyPrivateCfg() (*time.Duration, error)

type StatusFileData 

type StatusFileData struct {
	State      int
	Detail     string
	StdoutSize int64
	WorkType   string
	ExtraData  interface{}
}

StatusFileData is the structure of the JSON data saved to a status file. This struct should only contain value types, except for ExtraData.

func (*StatusFileData) Load 

func (sfd *StatusFileData) Load(filename string) error

Load loads status from a file.

func (*StatusFileData) Save 

func (sfd *StatusFileData) Save(filename string) error

Save saves status to a file.

func (*StatusFileData) UpdateBasicStatus 

func (sfd *StatusFileData) UpdateBasicStatus(filename string, state int, detail string, stdoutSize int64) error

UpdateBasicStatus atomically updates key fields in the status metadata file. Errors are logged rather than returned. Passing -1 as stdoutSize leaves it unchanged.

func (*StatusFileData) UpdateFullStatus 

func (sfd *StatusFileData) UpdateFullStatus(filename string, statusFunc func(*StatusFileData)) error

UpdateFullStatus atomically updates the status metadata file. Changes should be made in the callback function. Errors are logged rather than returned.

type VerifyingKeyPublicCfg added in v1.4.0 

type VerifyingKeyPublicCfg struct {
	PublicKey string `description:"Public key to verify signed work submissions" barevalue:"yes" default:""`
}

func (VerifyingKeyPublicCfg) Prepare added in v1.4.0 

func (cfg VerifyingKeyPublicCfg) Prepare() error

func (VerifyingKeyPublicCfg) PrepareVerifyingKeyPublicCfg added in v1.4.0 

func (cfg VerifyingKeyPublicCfg) PrepareVerifyingKeyPublicCfg() error

type WatcherWrapper added in v1.4.2 

type WatcherWrapper interface {
	Add(name string) error
	Close() error
	ErrorChannel() chan error
	EventChannel() chan fsnotify.Event
}

WatcherWrapper is wrapping the fsnofity Watcher struct and exposing the Event chan within.

type WorkPythonCfg added in v1.4.9 

type WorkPythonCfg struct {
	WorkType string                 `required:"true" description:"Name for this worker type"`
	Plugin   string                 `required:"true" description:"Python module name of the worker plugin"`
	Function string                 `required:"true" description:"Receptor-exported function to call"`
	Config   map[string]interface{} `description:"Plugin-specific configuration"`
}

workPythonCfg is the cmdline configuration object for a Python worker plugin.

func (WorkPythonCfg) NewWorker added in v1.4.9 

func (cfg WorkPythonCfg) NewWorker(_ BaseWorkUnitForWorkUnit, w *Workceptor, unitID string, workType string) WorkUnit

NewWorker is a factory to produce worker instances.

func (WorkPythonCfg) Run added in v1.4.9 

func (cfg WorkPythonCfg) Run() error

Run runs the action.

type WorkUnit 

type WorkUnit interface {
	ID() string
	UnitDir() string
	StatusFileName() string
	StdoutFileName() string
	Save() error
	Load() error
	SetFromParams(params map[string]string) error
	UpdateBasicStatus(state int, detail string, stdoutSize int64)
	UpdateFullStatus(statusFunc func(*StatusFileData))
	LastUpdateError() error
	Status() *StatusFileData
	UnredactedStatus() *StatusFileData
	Start() error
	Restart() error
	Cancel() error
	Release(force bool) error
}

WorkUnit represents a local unit of work.

func NewRemoteWorker added in v1.4.4 

func NewRemoteWorker(bwu BaseWorkUnitForWorkUnit, w *Workceptor, unitID, workType string) WorkUnit

type Workceptor 

type Workceptor struct {
	Cancel context.CancelFunc

	SigningKey        string
	SigningExpiration time.Duration
	VerifyingKey      string
	// contains filtered or unexported fields
}

Workceptor is the main object that handles unit-of-work management. 

var MainInstance *Workceptor

MainInstance is the global instance of Workceptor instantiated by the command-line main() function.

func New 

func New(ctx context.Context, nc NetceptorForWorkceptor, dataDir string) (*Workceptor, error)

New constructs a new Workceptor instance.

func (*Workceptor) AllocateRemoteUnit 

func (w *Workceptor) AllocateRemoteUnit(remoteNode, remoteWorkType, workUnitID string, tlsClient, ttl string, signWork bool, params map[string]string) (WorkUnit, error)

AllocateRemoteUnit creates a new remote work unit and generates a local identifier for it.

func (*Workceptor) AllocateUnit 

func (w *Workceptor) AllocateUnit(workTypeName string, workUnitID string, params map[string]string) (WorkUnit, error)

AllocateUnit creates a new local work unit and generates an identifier for it.

func (*Workceptor) CancelUnit 

func (w *Workceptor) CancelUnit(unitID string) error

CancelUnit cancels a unit of work, killing any processes.

func (*Workceptor) GetResults 

func (w *Workceptor) GetResults(ctx context.Context, unitID string, startPos int64) (chan []byte, error)

GetResults returns a live stream of the results of a unit.

func (*Workceptor) ListKnownUnitIDs 

func (w *Workceptor) ListKnownUnitIDs() []string

ListKnownUnitIDs returns a slice containing the known unit IDs.

func (*Workceptor) RegisterWithControlService 

func (w *Workceptor) RegisterWithControlService(cs ServerForWorkceptor) error

RegisterWithControlService registers this workceptor instance with a control service instance.

func (*Workceptor) RegisterWorker 

func (w *Workceptor) RegisterWorker(typeName string, newWorkerFunc NewWorkerFunc, verifySignature bool) error

RegisterWorker notifies the Workceptor of a new kind of work that can be done.

func (*Workceptor) ReleaseUnit 

func (w *Workceptor) ReleaseUnit(unitID string, force bool) error

ReleaseUnit releases (deletes) resources from a unit of work, including stdout. Release implies Cancel.

func (*Workceptor) ShouldVerifySignature 

func (w *Workceptor) ShouldVerifySignature(workType string, signWork bool) bool

func (*Workceptor) StartUnit 

func (w *Workceptor) StartUnit(unitID string) error

StartUnit starts a unit of work.

func (*Workceptor) UnitStatus 

func (w *Workceptor) UnitStatus(unitID string) (*StatusFileData, error)

UnitStatus returns the state of a unit.

func (*Workceptor) VerifySignature 

func (w *Workceptor) VerifySignature(signature string) error

type WorkerConfig added in v1.4.0 

type WorkerConfig interface {
	GetWorkType() string
	GetVerifySignature() bool
	NewWorker(bwu BaseWorkUnitForWorkUnit, w *Workceptor, unitID string, workType string) WorkUnit
}

Source Files

View all Source files

Directories

Path Synopsis
Package mock_workceptor is a generated GoMock package.
 Package mock_workceptor is a generated GoMock package.

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