/
obsaddon.go
143 lines (128 loc) · 4.4 KB
/
obsaddon.go
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// Copyright (c) Red Hat, Inc.
// Copyright Contributors to the Open Cluster Management project
// Licensed under the Apache License 2.0
package placementrule
import (
"context"
"time"
"github.com/stolostron/multicluster-observability-operator/operators/multiclusterobservability/pkg/config"
"golang.org/x/exp/slices"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
obsv1beta1 "github.com/stolostron/multicluster-observability-operator/operators/multiclusterobservability/api/v1beta1"
"github.com/stolostron/multicluster-observability-operator/operators/pkg/util"
)
const (
obsAddonName = "observability-addon"
obsAddonFinalizer = "observability.open-cluster-management.io/addon-cleanup"
)
func deleteObsAddon(c client.Client, namespace string) error {
found := &obsv1beta1.ObservabilityAddon{}
err := c.Get(context.TODO(), types.NamespacedName{Name: obsAddonName, Namespace: namespace}, found)
if err != nil {
if errors.IsNotFound(err) {
return nil
}
log.Error(err, "Failed to check observabilityaddon cr before delete", "namespace", namespace)
return err
}
err = c.Delete(context.TODO(), found)
if err != nil {
log.Error(err, "Failed to delete observabilityaddon", "namespace", namespace)
}
err = removeObservabilityAddon(c, namespace)
if err != nil {
return err
}
// forcely remove observabilityaddon if it's already stuck in Terminating more than 5 minutes
time.AfterFunc(time.Duration(5)*time.Minute, func() {
err := deleteStaleObsAddon(c, namespace, false)
if err != nil {
log.Error(err, "Failed to forcely remove observabilityaddon", "namespace", namespace)
}
})
log.Info("observabilityaddon is deleted", "namespace", namespace)
return nil
}
func createObsAddon(c client.Client, namespace string) error {
if namespace == config.GetDefaultNamespace() {
return nil
}
ec := &obsv1beta1.ObservabilityAddon{
ObjectMeta: metav1.ObjectMeta{
Name: obsAddonName,
Namespace: namespace,
Labels: map[string]string{
ownerLabelKey: ownerLabelValue,
},
},
}
found := &obsv1beta1.ObservabilityAddon{}
err := c.Get(context.TODO(), types.NamespacedName{Name: obsAddonName, Namespace: namespace}, found)
if err != nil && errors.IsNotFound(err) || err == nil && found.GetDeletionTimestamp() != nil {
if err == nil {
err = deleteFinalizer(c, found)
if err != nil {
return err
}
}
log.Info("Creating observabilityaddon cr", "namespace", namespace)
err = c.Create(context.TODO(), ec)
if err != nil {
log.Error(err, "Failed to create observabilityaddon cr")
return err
}
return nil
} else if err != nil {
log.Error(err, "Failed to check observabilityaddon cr before create")
return err
}
log.Info("observabilityaddon already existed/unchanged", "namespace", namespace)
return nil
}
func deleteStaleObsAddon(c client.Client, namespace string, isForce bool) error {
found := &obsv1beta1.ObservabilityAddon{}
err := c.Get(context.TODO(), types.NamespacedName{Name: obsAddonName, Namespace: namespace}, found)
if err != nil {
if errors.IsNotFound(err) {
return nil
}
log.Error(err, "Failed to check observabilityaddon cr before delete stale ones", "namespace", namespace)
return err
}
if found.GetDeletionTimestamp() == nil && !isForce {
log.Info("observabilityaddon is not in Terminating status, skip", "namespace", namespace)
return nil
}
err = deleteFinalizer(c, found)
if err != nil {
return err
}
obsaddon := &obsv1beta1.ObservabilityAddon{
ObjectMeta: metav1.ObjectMeta{
Name: obsAddonName,
Namespace: namespace,
},
}
err = c.Delete(context.TODO(), obsaddon)
if err != nil && !errors.IsNotFound(err) {
log.Error(err, "Failed to delete observabilityaddon", "namespace", namespace)
return err
}
log.Info("observabilityaddon is deleted thoroughly", "namespace", namespace)
return nil
}
func deleteFinalizer(c client.Client, obsaddon *obsv1beta1.ObservabilityAddon) error {
if slices.Contains(obsaddon.GetFinalizers(), obsAddonFinalizer) {
obsaddon.SetFinalizers(util.Remove(obsaddon.GetFinalizers(), obsAddonFinalizer))
err := c.Update(context.TODO(), obsaddon)
if err != nil {
log.Error(err, "Failed to delete finalizer in observabilityaddon", "namespace", obsaddon.Namespace)
return err
}
log.Info("observabilityaddon's finalizer is deleted", "namespace", obsaddon.Namespace)
}
return nil
}