mirror of https://github.com/grafana/grafana.git
90 lines
2.7 KiB
Go
90 lines
2.7 KiB
Go
package controller
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import (
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"context"
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"time"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apiserver/pkg/endpoints/request"
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"k8s.io/client-go/tools/cache"
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"github.com/grafana/grafana-app-sdk/logging"
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provisioning "github.com/grafana/grafana/apps/provisioning/pkg/apis/provisioning/v0alpha1"
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client "github.com/grafana/grafana/apps/provisioning/pkg/generated/clientset/versioned/typed/provisioning/v0alpha1"
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informer "github.com/grafana/grafana/apps/provisioning/pkg/generated/informers/externalversions/provisioning/v0alpha1"
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"github.com/grafana/grafana/pkg/apimachinery/identity"
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)
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const (
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historyJobControllerLoggerName = "provisioning-historyjob-controller"
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)
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// HistoryJobController manages the cleanup of old HistoryJob entries.
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type HistoryJobController struct {
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client client.ProvisioningV0alpha1Interface
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logger logging.Logger
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expirationTime time.Duration
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}
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// NewHistoryJobController creates a new HistoryJobController.
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func NewHistoryJobController(
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provisioningClient client.ProvisioningV0alpha1Interface,
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historyJobInformer informer.HistoricJobInformer,
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expirationTime time.Duration,
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) (*HistoryJobController, error) {
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c := &HistoryJobController{
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client: provisioningClient,
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logger: logging.DefaultLogger.With("logger", historyJobControllerLoggerName),
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expirationTime: expirationTime,
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}
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// Use the resync events from the shared informer to trigger cleanup for each job
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_, err := historyJobInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
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AddFunc: func(obj interface{}) {
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c.cleanupJob(obj)
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},
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UpdateFunc: func(oldObj, newObj interface{}) {
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c.cleanupJob(newObj)
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},
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})
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if err != nil {
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return nil, err
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}
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return c, nil
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}
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func (c *HistoryJobController) cleanupJob(obj interface{}) {
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job, ok := obj.(*provisioning.HistoricJob)
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if !ok {
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c.logger.Error("Expected HistoricJob but got", "type", obj)
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return
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}
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age := time.Since(job.CreationTimestamp.Time)
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if age > c.expirationTime {
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namespace := job.Namespace
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ctx, _, err := identity.WithProvisioningIdentity(context.Background(), namespace)
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if err != nil {
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c.logger.Error("Failed to set provisioning identity for cleanup", "error", err)
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return
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}
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ctx = request.WithNamespace(ctx, namespace)
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err = c.client.HistoricJobs(job.Namespace).Delete(ctx, job.Name, metav1.DeleteOptions{})
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if err != nil && !apierrors.IsNotFound(err) {
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c.logger.Error("Failed to delete expired HistoryJob",
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"namespace", job.Namespace,
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"name", job.Name,
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"age", age,
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"error", err)
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} else {
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c.logger.Info("Deleted expired HistoryJob",
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"namespace", job.Namespace,
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"name", job.Name,
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"age", age)
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}
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}
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}
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