healthscope

Documentation

Index

• Constants
• func CUEBasedHealthCheck(ctx context.Context, c client.Client, wlRef WorkloadReference, ns string, ...) (*WorkloadHealthCondition, []*TraitHealthCondition)
• func Setup(mgr ctrl.Manager, args controller.Args) error
• type AppHealthCondition
• type AppInfo
• type HealthStatus
• type PeerHealthConditions
  • func (p PeerHealthConditions) Len() int
  • func (p PeerHealthConditions) Less(i, j int) bool
  • func (p PeerHealthConditions) MergePeerWorkloadsConditions(basic *WorkloadHealthCondition)
  • func (p PeerHealthConditions) Swap(i, j int)
• type Reconciler
  • func NewReconciler(m ctrl.Manager, o ...ReconcilerOption) *Reconciler
  • func (r *Reconciler) CollectAppfilesAndAppNames(ctx context.Context, refs []WorkloadReference, ns string) (map[WorkloadReference]*af.Appfile, map[WorkloadReference]AppInfo)
  • func (r *Reconciler) GetScopeHealthStatus(ctx context.Context, healthScope *v1alpha2.HealthScope) (ScopeHealthCondition, []*AppHealthCondition)
  • func (r *Reconciler) Reconcile(ctx context.Context, req reconcile.Request) (reconcile.Result, error)
  • func (r *Reconciler) UpdateStatus(ctx context.Context, hs *v1alpha2.HealthScope, ...) error
• type ReconcilerOption
  • func WithChecker(c WorloadHealthChecker) ReconcilerOption
  • func WithRecorder(er event.Recorder) ReconcilerOption
  • func WithTraitChecker(c WorloadHealthChecker) ReconcilerOption
• type ScopeHealthCondition
• type TraitHealthCondition
• type WorkloadHealthCheckFn
  • func (fn WorkloadHealthCheckFn) Check(ctx context.Context, c client.Client, tr core.ObjectReference, ns string) *WorkloadHealthCondition
• type WorkloadHealthCondition
  • func CheckByHealthCheckTrait(ctx context.Context, c client.Client, wlRef core.ObjectReference, ns string) *WorkloadHealthCondition
  • func CheckDaemonsetHealth(ctx context.Context, client client.Client, ref core.ObjectReference, ...) *WorkloadHealthCondition
  • func CheckDeploymentHealth(ctx context.Context, client client.Client, ref core.ObjectReference, ...) *WorkloadHealthCondition
  • func CheckStatefulsetHealth(ctx context.Context, client client.Client, ref core.ObjectReference, ...) *WorkloadHealthCondition
  • func CheckUnknownWorkload(ctx context.Context, c client.Client, wlRef core.ObjectReference, ns string) *WorkloadHealthCondition
• type WorkloadReference
• type WorloadHealthChecker

Constants

const (
	// StatusHealthy represents healthy status.
	StatusHealthy = v1alpha2.StatusHealthy
	// StatusUnhealthy represents unhealthy status.
	StatusUnhealthy = v1alpha2.StatusUnhealthy
	// StatusUnknown represents unknown status.
	StatusUnknown = v1alpha2.StatusUnknown
)

Functions

func CUEBasedHealthCheck

func CUEBasedHealthCheck(ctx context.Context, c client.Client, wlRef WorkloadReference, ns string, appfile *af.Appfile) (*WorkloadHealthCondition, []*TraitHealthCondition)

CUEBasedHealthCheck check workload and traits health through CUE-based health checking approach.

func Setup

func Setup(mgr ctrl.Manager, args controller.Args) error

Setup adds a controller that reconciles HealthScope.

Types

type AppHealthCondition

type AppHealthCondition = v1alpha2.AppHealthCondition

AppHealthCondition holds health status of an application

type AppInfo

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

AppInfo contains app's name and app's env

type HealthStatus

type HealthStatus = v1alpha2.HealthStatus

HealthStatus represents health status strings.

type PeerHealthConditions

type PeerHealthConditions []WorkloadHealthCondition

PeerHealthConditions refers to a slice of health condition of worloads belonging to one version-enabled component

func (PeerHealthConditions) Len

func (p PeerHealthConditions) Len() int

func (PeerHealthConditions) Less

func (p PeerHealthConditions) Less(i, j int) bool

func (PeerHealthConditions) MergePeerWorkloadsConditions

func (p PeerHealthConditions) MergePeerWorkloadsConditions(basic *WorkloadHealthCondition)

MergePeerWorkloadsConditions merge health conditions of all peer workloads into basic

func (PeerHealthConditions) Swap

func (p PeerHealthConditions) Swap(i, j int)

type Reconciler

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

A Reconciler reconciles OAM Scopes by keeping track of the health status of components.

func NewReconciler

func NewReconciler(m ctrl.Manager, o ...ReconcilerOption) *Reconciler

NewReconciler returns a Reconciler that reconciles HealthScope by keeping track of its healthstatus.

func (*Reconciler) CollectAppfilesAndAppNames

func (r *Reconciler) CollectAppfilesAndAppNames(ctx context.Context, refs []WorkloadReference, ns string) (map[WorkloadReference]*af.Appfile, map[WorkloadReference]AppInfo)

CollectAppfilesAndAppNames retrieve appfiles and app names for CUEBasedHealthCheck

func (*Reconciler) GetScopeHealthStatus

func (r *Reconciler) GetScopeHealthStatus(ctx context.Context, healthScope *v1alpha2.HealthScope) (ScopeHealthCondition, []*AppHealthCondition)

GetScopeHealthStatus get the status of the healthscope based on workload resources.

func (*Reconciler) Reconcile

func (r *Reconciler) Reconcile(ctx context.Context, req reconcile.Request) (reconcile.Result, error)

Reconcile an OAM HealthScope by keeping track of its health status.

func (*Reconciler) UpdateStatus

func (r *Reconciler) UpdateStatus(ctx context.Context, hs *v1alpha2.HealthScope, opts ...client.SubResourceUpdateOption) error

UpdateStatus updates v1alpha2.HealthScope's Status with retry.RetryOnConflict

type ReconcilerOption

type ReconcilerOption func(*Reconciler)

A ReconcilerOption configures a Reconciler.

func WithChecker

func WithChecker(c WorloadHealthChecker) ReconcilerOption

WithChecker adds workload health checker

func WithRecorder

func WithRecorder(er event.Recorder) ReconcilerOption

WithRecorder specifies how the Reconciler should record events.

func WithTraitChecker

func WithTraitChecker(c WorloadHealthChecker) ReconcilerOption

WithTraitChecker adds health checker based on HealthCheckTrait

type ScopeHealthCondition

type ScopeHealthCondition = v1alpha2.ScopeHealthCondition

ScopeHealthCondition holds health condition of a scope

type TraitHealthCondition

type TraitHealthCondition = v1alpha2.TraitHealthCondition

TraitHealthCondition holds health status of a trait

type WorkloadHealthCheckFn

type WorkloadHealthCheckFn func(context.Context, client.Client, core.ObjectReference, string) *WorkloadHealthCondition

WorkloadHealthCheckFn checks health status of specified resource and saves status into an HealthCondition object.

func (WorkloadHealthCheckFn) Check

func (fn WorkloadHealthCheckFn) Check(ctx context.Context, c client.Client, tr core.ObjectReference, ns string) *WorkloadHealthCondition

Check the health status of specified resource

type WorkloadHealthCondition

type WorkloadHealthCondition = v1alpha2.WorkloadHealthCondition

WorkloadHealthCondition holds health status of a workload

func CheckByHealthCheckTrait

func CheckByHealthCheckTrait(ctx context.Context, c client.Client, wlRef core.ObjectReference, ns string) *WorkloadHealthCondition

CheckByHealthCheckTrait checks health condition through HealthCheckTrait.

func CheckDaemonsetHealth

func CheckDaemonsetHealth(ctx context.Context, client client.Client, ref core.ObjectReference, namespace string) *WorkloadHealthCondition

CheckDaemonsetHealth checks health condition of DaemonSet

func CheckDeploymentHealth

func CheckDeploymentHealth(ctx context.Context, client client.Client, ref core.ObjectReference, namespace string) *WorkloadHealthCondition

CheckDeploymentHealth checks health condition of Deployment

func CheckStatefulsetHealth

func CheckStatefulsetHealth(ctx context.Context, client client.Client, ref core.ObjectReference, namespace string) *WorkloadHealthCondition

CheckStatefulsetHealth checks health condition of StatefulSet

func CheckUnknownWorkload

func CheckUnknownWorkload(ctx context.Context, c client.Client, wlRef core.ObjectReference, ns string) *WorkloadHealthCondition

CheckUnknownWorkload handles unknown type workloads.

type WorkloadReference

type WorkloadReference struct {
	corev1.ObjectReference
	// contains filtered or unexported fields
}

WorkloadReference refer to a multi-env workload

type WorloadHealthChecker

type WorloadHealthChecker interface {
	Check(context.Context, client.Client, core.ObjectReference, string) *WorkloadHealthCondition
}

A WorloadHealthChecker checks health status of specified resource and saves status into an HealthCondition object.