common

package
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 Go to latest Published: Oct 31, 2022 License: Apache-2.0 Imports: 28 Imported by: 64

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Index

Constants

View Source 
const (
	// Container names used in the workflow pod
	MainContainerName = "main"
	InitContainerName = "init"
	WaitContainerName = "wait"

	// AnnotationKeyDefaultContainer is the annotation that specify container that will be used by default in case of kubectl commands for example
	AnnotationKeyDefaultContainer = "kubectl.kubernetes.io/default-container"

	// AnnotationKeyServiceAccountTokenName is used to name the secret that containers the service account token name.
	// It is intentially named similar to ` `kubernetes.io/service-account.name`.
	AnnotationKeyServiceAccountTokenName = workflow.WorkflowFullName + "/service-account-token.name"

	// AnnotationKeyNodeID is the ID of the node.
	// Historically, the pod name was the same as the node ID.
	// Therefore, if it does not exist, then the node ID is the pod name.
	AnnotationKeyNodeID = workflow.WorkflowFullName + "/node-id"
	// AnnotationKeyNodeName is the pod metadata annotation key containing the workflow node name
	AnnotationKeyNodeName = workflow.WorkflowFullName + "/node-name"
	// AnnotationKeyNodeType is the node's type
	AnnotationKeyNodeType = workflow.WorkflowFullName + "/node-type"
	// AnnotationKeyNodeStartTime is the node's start timestamp.
	AnnotationKeyNodeStartTime = workflow.WorkflowFullName + "/node-start-time"

	// AnnotationKeyRBACRule is a rule to match the claims
	AnnotationKeyRBACRule           = workflow.WorkflowFullName + "/rbac-rule"
	AnnotationKeyRBACRulePrecedence = workflow.WorkflowFullName + "/rbac-rule-precedence"

	// AnnotationKeyOutputs is the pod metadata annotation key containing the container outputs
	AnnotationKeyOutputs = workflow.WorkflowFullName + "/outputs"
	// AnnotationKeyCronWfScheduledTime is the workflow metadata annotation key containing the time when the workflow
	// was scheduled to run by CronWorkflow.
	AnnotationKeyCronWfScheduledTime = workflow.WorkflowFullName + "/scheduled-time"

	// AnnotationKeyWorkflowName is the name of the workflow
	AnnotationKeyWorkflowName = workflow.WorkflowFullName + "/workflow-name"
	// AnnotationKeyWorkflowUID is the uid of the workflow
	AnnotationKeyWorkflowUID = workflow.WorkflowFullName + "/workflow-uid"

	// AnnotationKeyPodNameVersion stores the pod naming convention version
	AnnotationKeyPodNameVersion = workflow.WorkflowFullName + "/pod-name-format"

	// AnnotationKeyProgress is N/M progress for the node
	AnnotationKeyProgress = workflow.WorkflowFullName + "/progress"

	// AnnotationKeyArtifactGCStrategy is listed as an annotation on the Artifact GC Pod to identify
	// the strategy whose artifacts are being deleted
	AnnotationKeyArtifactGCStrategy = workflow.WorkflowFullName + "/artifact-gc-strategy"

	// LabelKeyControllerInstanceID is the label the controller will carry forward to workflows/pod labels
	// for the purposes of workflow segregation
	LabelKeyControllerInstanceID = workflow.WorkflowFullName + "/controller-instanceid"
	// Who created this workflow.
	LabelKeyCreator                  = workflow.WorkflowFullName + "/creator"
	LabelKeyCreatorEmail             = workflow.WorkflowFullName + "/creator-email"
	LabelKeyCreatorPreferredUsername = workflow.WorkflowFullName + "/creator-preferred-username"
	// LabelKeyCompleted is the metadata label applied on workflows and workflow pods to indicates if resource is completed
	// Workflows and pods with a completed=true label will be ignored by the controller.
	// See also `LabelKeyWorkflowArchivingStatus`.
	LabelKeyCompleted = workflow.WorkflowFullName + "/completed"
	// LabelKeyWorkflowArchivingStatus indicates if a workflow needs archiving or not:
	// * “ - does not need archiving ... yet
	// * `Pending` - pending archiving
	// * `Archived` - has been archived
	// See also `LabelKeyCompleted`.
	LabelKeyWorkflowArchivingStatus = workflow.WorkflowFullName + "/workflow-archiving-status"
	// LabelKeyWorkflow is the pod metadata label to indicate the associated workflow name
	LabelKeyWorkflow = workflow.WorkflowFullName + "/workflow"
	// LabelKeyComponent determines what component within a workflow, intentionally similar to app.kubernetes.io/component.
	// See https://kubernetes.io/docs/concepts/overview/working-with-objects/common-labels/
	LabelKeyComponent = workflow.WorkflowFullName + "/component"
	// LabelKeyPhase is a label applied to workflows to indicate the current phase of the workflow (for filtering purposes)
	LabelKeyPhase = workflow.WorkflowFullName + "/phase"
	// LabelKeyPreviousWorkflowName is a label applied to resubmitted workflows
	LabelKeyPreviousWorkflowName = workflow.WorkflowFullName + "/resubmitted-from-workflow"
	// LabelKeyCronWorkflow is a label applied to Workflows that are started by a CronWorkflow
	LabelKeyCronWorkflow = workflow.WorkflowFullName + "/cron-workflow"
	// LabelKeyWorkflowTemplate is a label applied to Workflows that are submitted from Workflowtemplate
	LabelKeyWorkflowTemplate = workflow.WorkflowFullName + "/workflow-template"
	// LabelKeyWorkflowEventBinding is a label applied to Workflows that are submitted from a WorkflowEventBinding
	LabelKeyWorkflowEventBinding = workflow.WorkflowFullName + "/workflow-event-binding"
	// LabelKeyWorkflowTemplate is a label applied to Workflows that are submitted from ClusterWorkflowtemplate
	LabelKeyClusterWorkflowTemplate = workflow.WorkflowFullName + "/cluster-workflow-template"
	// LabelKeyOnExit is a label applied to Pods that are run from onExit nodes, so that they are not shut down when stopping a Workflow
	LabelKeyOnExit = workflow.WorkflowFullName + "/on-exit"
	// LabelKeyArtifactGCPodHash is a label applied to WorkflowTaskSets used by the Artifact Garbage Collection Pod
	LabelKeyArtifactGCPodHash = workflow.WorkflowFullName + "/artifact-gc-pod"

	// ExecutorArtifactBaseDir is the base directory in the init container in which artifacts will be copied to.
	// Each artifact will be named according to its input name (e.g: /argo/inputs/artifacts/CODE)
	ExecutorArtifactBaseDir = "/argo/inputs/artifacts"

	// ExecutorMainFilesystemDir is a path made available to the init/wait containers such that they
	// can access the same volume mounts used in the main container. This is used for the purposes
	// of artifact loading (when there is overlapping paths between artifacts and volume mounts),
	// as well as artifact collection by the wait container.
	ExecutorMainFilesystemDir = "/mainctrfs"

	// ExecutorStagingEmptyDir is the path of the emptydir which is used as a staging area to transfer a file between init/main container for script/resource templates
	ExecutorStagingEmptyDir = "/argo/staging"
	// ExecutorScriptSourcePath is the path which init will write the script source file to for script templates
	ExecutorScriptSourcePath = "/argo/staging/script"
	// ExecutorResourceManifestPath is the path which init will write the manifest file to for resource templates
	ExecutorResourceManifestPath = "/tmp/manifest.yaml"

	// EnvVarArtifactGCPodHash is applied as a Label on the WorkflowTaskSets read by the Artifact GC Pod, so that the Pod can find them
	EnvVarArtifactGCPodHash = "ARGO_ARTIFACT_POD_NAME"
	// EnvVarPodName contains the name of the pod (currently unused)
	EnvVarPodName = "ARGO_POD_NAME"
	// EnvVarPodUID is the workflow's UID
	EnvVarPodUID = "ARGO_POD_UID"
	// EnvVarInstanceID is the instance ID
	EnvVarInstanceID = "ARGO_INSTANCE_ID"
	// EnvVarWorkflowName is the name of the workflow for which the an agent is responsible for
	EnvVarWorkflowName = "ARGO_WORKFLOW_NAME"
	// EnvVarWorkflowUID is the workflow UUID
	EnvVarWorkflowUID = "ARGO_WORKFLOW_UID"
	// EnvVarNodeID is the node ID of the node.
	EnvVarNodeID = "ARGO_NODE_ID"
	// EnvVarPluginAddresses is a list of plugin addresses
	EnvVarPluginAddresses = "ARGO_PLUGIN_ADDRESSES"
	// EnvVarPluginNames is a list of plugin names
	EnvVarPluginNames = "ARGO_PLUGIN_NAMES"
	// EnvVarContainerName container the container's name for the current pod
	EnvVarContainerName = "ARGO_CONTAINER_NAME"
	// EnvVarDeadline is the deadline for the pod
	EnvVarDeadline = "ARGO_DEADLINE"
	// EnvVarTerminationGracePeriodSeconds is pod.spec.terminationGracePeriodSeconds
	EnvVarTerminationGracePeriodSeconds = "ARGO_TERMINATION_GRACE_PERIOD_SECONDS"
	// EnvVarIncludeScriptOutput capture the stdout and stderr
	EnvVarIncludeScriptOutput = "ARGO_INCLUDE_SCRIPT_OUTPUT"
	// EnvVarTemplate is the template
	EnvVarTemplate = "ARGO_TEMPLATE"
	// EnvVarArgoTrace is used enable tracing statements in Argo components
	EnvVarArgoTrace = "ARGO_TRACE"
	// EnvVarProgressPatchTickDuration sets the tick duration for patching pod annotations upon progress changes.
	// Setting this or EnvVarProgressFileTickDuration to 0 will disable monitoring progress.
	EnvVarProgressPatchTickDuration = "ARGO_PROGRESS_PATCH_TICK_DURATION"
	// EnvVarProgressFileTickDuration sets the tick duration for reading & parsing the progress file.
	// Setting this or EnvVarProgressPatchTickDuration to 0 will disable monitoring progress.
	EnvVarProgressFileTickDuration = "ARGO_PROGRESS_FILE_TICK_DURATION"
	// EnvVarProgressFile is the file watched for reporting progress
	EnvVarProgressFile = "ARGO_PROGRESS_FILE"
	// EnvVarDefaultRequeueTime is the default requeue time for Workflow Informers. For more info, see rate_limiters.go
	EnvVarDefaultRequeueTime = "DEFAULT_REQUEUE_TIME"
	// EnvAgentTaskWorkers is the number of task workers for the agent pod
	EnvAgentTaskWorkers = "ARGO_AGENT_TASK_WORKERS"
	// EnvAgentPatchRate is the rate that the Argo Agent will patch the Workflow TaskSet
	EnvAgentPatchRate = "ARGO_AGENT_PATCH_RATE"

	// Finalizer to block deletion of the workflow if deletion of artifacts fail for some reason.
	FinalizerArtifactGC = workflow.WorkflowFullName + "/artifact-gc"

	// GlobalVarWorkflowName is a global workflow variable referencing the workflow's metadata.name field
	GlobalVarWorkflowName = "workflow.name"
	// GlobalVarWorkflowNamespace is a global workflow variable referencing the workflow's metadata.namespace field
	GlobalVarWorkflowNamespace = "workflow.namespace"
	// GlobalVarWorkflowServiceAccountName is a global workflow variable referencing the workflow's spec.serviceAccountName field
	GlobalVarWorkflowServiceAccountName = "workflow.serviceAccountName"
	// GlobalVarWorkflowUID is a global workflow variable referencing the workflow's metadata.uid field
	GlobalVarWorkflowUID = "workflow.uid"
	// GlobalVarWorkflowStatus is a global workflow variable referencing the workflow's status.phase field
	GlobalVarWorkflowStatus = "workflow.status"
	// GlobalVarWorkflowCreationTimestamp is the workflow variable referencing the workflow's metadata.creationTimestamp field
	GlobalVarWorkflowCreationTimestamp = "workflow.creationTimestamp"
	// GlobalVarWorkflowPriority is the workflow variable referencing the workflow's priority field
	GlobalVarWorkflowPriority = "workflow.priority"
	// GlobalVarWorkflowFailures is a global variable of a JSON map referencing the workflow's failed nodes
	GlobalVarWorkflowFailures = "workflow.failures"
	// GlobalVarWorkflowDuration is the current duration of this workflow
	GlobalVarWorkflowDuration = "workflow.duration"
	// GlobalVarWorkflowAnnotations is a JSON string containing all workflow annotations - which will be deprecated in favor of GlobalVarWorkflowAnnotationsJSON
	GlobalVarWorkflowAnnotations = "workflow.annotations"
	// GlobalVarWorkflowAnnotationsJSON is a JSON string containing all workflow annotations
	GlobalVarWorkflowAnnotationsJSON = "workflow.annotations.json"
	// GlobalVarWorkflowLabels is a JSON string containing all workflow labels - which will be deprecated in favor of GlobalVarWorkflowLabelsJSON
	GlobalVarWorkflowLabels = "workflow.labels"
	// GlobalVarWorkflowLabelsJSON is a JSON string containing all workflow labels
	GlobalVarWorkflowLabelsJSON = "workflow.labels.json"
	// GlobalVarWorkflowParameters is a JSON string containing all workflow parameters - which will be deprecated in favor of GlobalVarWorkflowParametersJSON
	GlobalVarWorkflowParameters = "workflow.parameters"
	// GlobalVarWorkflowParametersJSON is a JSON string containing all workflow parameters
	GlobalVarWorkflowParametersJSON = "workflow.parameters.json"
	// GlobalVarWorkflowCronScheduleTime is the scheduled timestamp of a Workflow started by a CronWorkflow
	GlobalVarWorkflowCronScheduleTime = "workflow.scheduledTime"

	// LabelKeyConfigMapType is the label key for the type of configmap.
	LabelKeyConfigMapType = "workflows.argoproj.io/configmap-type"
	// LabelValueTypeConfigMapCache is a key for configmaps that are memoization cache.
	LabelValueTypeConfigMapCache = "Cache"
	// LabelValueTypeConfigMapParameter is a key for configmaps that contains parameter values.
	LabelValueTypeConfigMapParameter = "Parameter"
	// LabelValueTypeConfigMapExecutorPlugin is a key for configmaps that contains an executor plugin.
	LabelValueTypeConfigMapExecutorPlugin = "ExecutorPlugin"

	// LocalVarPodName is a step level variable that references the name of the pod
	LocalVarPodName = "pod.name"
	// LocalVarRetries is a step level variable that references the retries number if retryStrategy is specified
	LocalVarRetries = "retries"
	// LocalVarDuration is a step level variable (currently only available in metric emission) that tracks the duration of the step
	LocalVarDuration = "duration"
	// LocalVarStatus is a step level variable (currently only available in metric emission) that tracks the duration of the step
	LocalVarStatus = "status"
	// LocalVarResourcesDuration is a step level variable (currently only available in metric emission) that tracks the resources duration of the step
	LocalVarResourcesDuration = "resourcesDuration"
	// LocalVarExitCode is a step level variable (currently only available in metric emission) that tracks the step's exit code
	LocalVarExitCode = "exitCode"

	// LocalVarRetriesLastExitCode is a variable that references information about the last retry's exit code
	LocalVarRetriesLastExitCode = "lastRetry.exitCode"
	// LocalVarRetriesLastStatus is a variable that references information about the last retry's status
	LocalVarRetriesLastStatus = "lastRetry.status"
	// LocalVarRetriesLastDuration is a variable that references information about the last retry's duration, in seconds
	LocalVarRetriesLastDuration = "lastRetry.duration"

	KubeConfigDefaultMountPath    = "/kube/config"
	KubeConfigDefaultVolumeName   = "kubeconfig"
	ServiceAccountTokenMountPath  = "/var/run/secrets/kubernetes.io/serviceaccount" //nolint:gosec
	ServiceAccountTokenVolumeName = "exec-sa-token"                                 //nolint:gosec
	SecretVolMountPath            = "/argo/secret"

	// CACertificatesVolumeMountName is the name of the secret that contains the CA certificates.
	CACertificatesVolumeMountName = "argo-workflows-agent-ca-certificates"

	// VarRunArgoPath is the standard path for the shared volume
	VarRunArgoPath = "/var/run/argo"

	// ArgoProgressPath defines the path to a file used for self reporting progress
	ArgoProgressPath = VarRunArgoPath + "/progress"

	// ErrDeadlineExceeded is the pod status reason when exceed deadline
	ErrDeadlineExceeded = "DeadlineExceeded"

	ConfigMapName = "workflow-controller-configmap"
)

Variables

View Source 
var AnnotationKeyKillCmd = func(containerName string) string { return workflow.WorkflowFullName + "/kill-cmd-" + containerName }

AnnotationKeyKillCmd specifies the command to use to kill to container, useful for injected sidecars

View Source 
var GlobalVarValidWorkflowVariablePrefix = []string{"item.", "steps.", "inputs.", "outputs.", "pod.", "workflow.", "tasks."}

GlobalVarWorkflowRootTags is a list of root tags in workflow which could be used for variable reference

Functions

func ConvertCronWorkflowToWorkflow 

func ConvertCronWorkflowToWorkflow(cronWf *wfv1.CronWorkflow) *wfv1.Workflow

func ConvertCronWorkflowToWorkflowWithProperties 

func ConvertCronWorkflowToWorkflowWithProperties(cronWf *wfv1.CronWorkflow, name string, scheduledTime time.Time) *wfv1.Workflow

func DeletePod 

func DeletePod(ctx context.Context, c kubernetes.Interface, podName, namespace string) error

DeletePod deletes a pod. Ignores NotFound error

func ExecPodContainer 

func ExecPodContainer(restConfig *rest.Config, namespace string, pod string, container string, stdout bool, stderr bool, command ...string) (remotecommand.Executor, error)

ExecPodContainer runs a command in a container in a pod and returns the remotecommand.Executor

func FindOverlappingVolume 

func FindOverlappingVolume(tmpl *wfv1.Template, path string) *apiv1.VolumeMount

FindOverlappingVolume looks an artifact path, checks if it overlaps with any user specified volumeMounts in the template, and returns the deepest volumeMount (if any). A return value of nil indicates the path is not under any volumeMount.

func GenerateOnExitNodeName 

func GenerateOnExitNodeName(parentNodeName string) string

func GetConfigMapValue added in v3.2.5 

func GetConfigMapValue(configMapInformer cache.SharedIndexInformer, namespace, name, key string) (string, error)

GetConfigMapValue retrieves a configmap value

func GetExecutorOutput 

func GetExecutorOutput(exec remotecommand.Executor) (*bytes.Buffer, *bytes.Buffer, error)

GetExecutorOutput returns the output of an remotecommand.Executor

func GetTaskAncestry 

func GetTaskAncestry(ctx DagContext, taskName string) []string

GetTaskAncestry returns a list of taskNames which are ancestors of this task. The list is ordered by the tasks finished time.

func GetTaskDependencies 

func GetTaskDependencies(task *wfv1.DAGTask, ctx DagContext) (map[string]DependencyType, string)

func GetTemplateGetterString 

func GetTemplateGetterString(getter wfv1.TemplateHolder) string

GetTemplateGetterString returns string of TemplateHolder.

func GetTemplateHolderString 

func GetTemplateHolderString(tmplHolder wfv1.TemplateReferenceHolder) string

GetTemplateHolderString returns string of TemplateReferenceHolder.

func IsDone added in v3.3.0 

func IsDone(un *unstructured.Unstructured) bool

func NewPlaceholderGenerator 

func NewPlaceholderGenerator() *placeholderGenerator

NewPlaceholderGenerator returns a placeholderGenerator.

func NewWorkflowFromWorkflowTemplate 

func NewWorkflowFromWorkflowTemplate(templateName string, clusterScope bool) *wfv1.Workflow

func ProcessArgs 

func ProcessArgs(tmpl *wfv1.Template, args wfv1.ArgumentsProvider, globalParams, localParams Parameters, validateOnly bool, namespace string, configMapInformer cache.SharedIndexInformer) (*wfv1.Template, error)

ProcessArgs sets in the inputs, the values either passed via arguments, or the hardwired values It substitutes: * parameters in the template from the arguments * global parameters (e.g. {{workflow.parameters.XX}}, {{workflow.name}}, {{workflow.status}}) * local parameters (e.g. {{pod.name}})

func RunCommand 

func RunCommand(name string, arg ...string) ([]byte, error)

RunCommand is a convenience function to run/log a command and log the stderr upon failure

func RunShellCommand 

func RunShellCommand(arg ...string) ([]byte, error)

RunShellCommand is a convenience function to use RunCommand for shell executions. It's os-specific and runs `cmd` in windows.

func SplitClusterWorkflowTemplateYAMLFile 

func SplitClusterWorkflowTemplateYAMLFile(body []byte, strict bool) ([]wfv1.ClusterWorkflowTemplate, error)

SplitClusterWorkflowTemplateYAMLFile is a helper to split a body into multiple cluster workflow template objects

func SplitCronWorkflowYAMLFile 

func SplitCronWorkflowYAMLFile(body []byte, strict bool) ([]wfv1.CronWorkflow, error)

SplitCronWorkflowYAMLFile is a helper to split a body into multiple workflow template objects

func SplitWorkflowTemplateYAMLFile 

func SplitWorkflowTemplateYAMLFile(body []byte, strict bool) ([]wfv1.WorkflowTemplate, error)

SplitWorkflowTemplateYAMLFile is a helper to split a body into multiple workflow template objects

func SplitWorkflowYAMLFile 

func SplitWorkflowYAMLFile(body []byte, strict bool) ([]wfv1.Workflow, error)

SplitWorkflowYAMLFile is a helper to split a body into multiple workflow objects

func SubstituteParams 

func SubstituteParams(tmpl *wfv1.Template, globalParams, localParams Parameters) (*wfv1.Template, error)

SubstituteParams returns a new copy of the template with global, pod, and input parameters substituted

func UnstructuredHasCompletedLabel 

func UnstructuredHasCompletedLabel(obj interface{}) bool

func ValidateTaskResults 

func ValidateTaskResults(dagTask *wfv1.DAGTask) error

Types

type DagContext 

type DagContext interface {
	GetTask(taskName string) *wfv1.DAGTask
	GetTaskDependencies(taskName string) []string
	GetTaskFinishedAtTime(taskName string) time.Time
}

type DependencyType 

type DependencyType int
const (
	DependencyTypeTask DependencyType = iota
	DependencyTypeItems
)

type Parameters 

type Parameters map[string]string

Parameters extends string map with useful methods.

func (Parameters) DeepCopy 

func (ps Parameters) DeepCopy() Parameters

DeepCopy returns a new instance which has the same parameters as the receiver.

func (Parameters) Merge 

func (ps Parameters) Merge(args ...Parameters) Parameters

Merge merges given parameters.

type ParseResult 

type ParseResult struct {
	Object metav1.Object
	Err    error
}

func ParseObjects 

func ParseObjects(body []byte, strict bool) []ParseResult

type RoundTripCallback 

type RoundTripCallback func(conn *websocket.Conn, resp *http.Response, err error) error

type TaskResult 

type TaskResult string
const (
	TaskResultSucceeded    TaskResult = "Succeeded"
	TaskResultFailed       TaskResult = "Failed"
	TaskResultErrored      TaskResult = "Errored"
	TaskResultSkipped      TaskResult = "Skipped"
	TaskResultOmitted      TaskResult = "Omitted"
	TaskResultDaemoned     TaskResult = "Daemoned"
	TaskResultAnySucceeded TaskResult = "AnySucceeded"
	TaskResultAllFailed    TaskResult = "AllFailed"
)

type WebsocketRoundTripper 

type WebsocketRoundTripper struct {
	Dialer *websocket.Dialer
	Do     RoundTripCallback
}

func (*WebsocketRoundTripper) RoundTrip 

func (d *WebsocketRoundTripper) RoundTrip(r *http.Request) (*http.Response, error)

Source Files

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