controller

README

Workflow Controller

Documentation

Index

• Constants
• Variables
• func ImagePullPolicy() corev1.PullPolicy
• func InitLogger(logging *LoggingConfig)
• func LoadConfig(cm *corev1.ConfigMap) error
• type ExecutionContext
• type GCConfig
• type LimitsConfig
• type LoggingConfig
• type WorkflowControllerConfig

Constants

const (
	// DevModeEnvName determines whether workflow controller is in development mode.
	// In development mode, resource resolver containers, coordinator containers will
	// have image pull policy being 'Always', otherwise it's 'IfNotPresent'.
	DevModeEnvName = "DEVELOP_MODE"

	// ConfigFileKey is key of config file in ConfigMap
	ConfigFileKey = "workflow-controller.json"

	// GitResolverImage is key of git source resolver image in config file
	GitResolverImage = "git-resolver"
	// ImageResolverImage is key of image source resolver image in config file
	ImageResolverImage = "image-resolver"
	// KvResolverImage is key of kv source resolver image in config file
	KvResolverImage = "kv-resolver"
	// CoordinatorImage is key of coordinator image in config file
	CoordinatorImage = "coordinator"
	// GCImage is key of the GC image in config file
	GCImage = "gc"
)

Variables

var ResolverImageKeys = map[v1alpha1.ResourceType]string{
	v1alpha1.GitResourceType:   GitResolverImage,
	v1alpha1.ImageResourceType: ImageResolverImage,
	v1alpha1.KVResourceType:    KvResolverImage,
}

ResolverImageKeys maps resource type to resolver images

Functions

func ImagePullPolicy

func ImagePullPolicy() corev1.PullPolicy

ImagePullPolicy determines image pull policy based on environment variable DEVELOP_MODE This pull policy will be used in image resolver containers and coordinator containers.

func InitLogger

func InitLogger(logging *LoggingConfig)

InitLogger inits logging

func LoadConfig

func LoadConfig(cm *corev1.ConfigMap) error

LoadConfig loads configuration from ConfigMap

Types

type ExecutionContext

type ExecutionContext struct {
	// Namespace is namespace where to run workflow.
	Namespace string `json:"namespace"`
	// PVC is pvc used to run workflow. It's used to transfer artifacts in WorkflowRun, and
	// also to help share resources among stages within WorkflowRun. If no PVC is given here,
	// input resources won't be shared among stages, but need to be pulled every time it's needed.
	// And also if no PVC given, artifacts are not supported.
	PVC string `json:"pvc"`
	// ServiceAccount is the service account applied to the pod runed
	ServiceAccount string `json:"service_account"`
}

ExecutionContext defines default namespace and pvc used to run workflow.

type GCConfig

type GCConfig struct {
	// Enabled controllers whether GC is enabled, if set to false, no GC would happen.
	Enabled bool `json:"enabled"`
	// DelaySeconds defines the time after a WorkflowRun terminated to perform GC. When configured to 0.
	// it equals to gc immediately.
	DelaySeconds time.Duration `json:"delay_seconds"`
	// RetryCount defines how many times to retry when GC failed, 0 means no retry.
	RetryCount int `json:"retry"`
}

GCConfig configures GC

type LimitsConfig

type LimitsConfig struct {
	// Maximum WorkflowRuns to be kept for each Workflow
	MaxWorkflowRuns int `json:"max_workflowruns"`
}

LimitsConfig configures maximum WorkflowRun to keep for each Workflow

type LoggingConfig

type LoggingConfig struct {
	Level string `json:"level"`
}

LoggingConfig configures logging

type WorkflowControllerConfig

type WorkflowControllerConfig struct {
	// Images that used in controller, such as resource resolvers.
	Images map[string]string `json:"images"`
	// Logging configuration, such as log level.
	Logging LoggingConfig `json:"logging"`
	// GC configuration
	GC GCConfig `json:"gc"`
	// Limits of each resources should be retained
	Limits LimitsConfig `json:"limits"`
	// ResourceRequirements is default resource requirements for containers in stage Pod
	ResourceRequirements corev1.ResourceRequirements `json:"default_resource_quota"`
	// ExecutionContext defines default namespace and pvc used to run workflow.
	ExecutionContext ExecutionContext `json:"execution_context"`
	// Secret is default secret used for Cyclone, auth of registry can be placed here. It's optional.
	// TODO(ChenDe): Remove it when Cyclone can manage secrets for namespaces.
	Secret string `json:"secret"`
	// CycloneServerAddr is address of the Cyclone Server
	CycloneServerAddr string `json:"cyclone_server_addr"`
}

WorkflowControllerConfig configures Workflow Controller

var Config WorkflowControllerConfig

Config is Workflow Controller config instance