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Merge pull request #75972 from smarterclayton/use_patch

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Garbage collector should use a merge patch instead of Update
This commit is contained in:
Kubernetes Prow Robot 2019-04-01 22:44:57 -07:00 committed by GitHub
commit 42ff0d8517
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1 changed files with 12 additions and 12 deletions
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24
pkg/controller/garbagecollector/operations.go
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@ -17,6 +17,7 @@ limitations under the License.
package garbagecollector package garbagecollector
import ( import (
"encoding/json"
"fmt" "fmt"
"k8s.io/apimachinery/pkg/api/errors" "k8s.io/apimachinery/pkg/api/errors"
@ -67,14 +68,6 @@ func (gc *GarbageCollector) getObject(item objectReference) (*unstructured.Unstr
return gc.dynamicClient.Resource(resource).Namespace(resourceDefaultNamespace(namespaced, item.Namespace)).Get(item.Name, metav1.GetOptions{}) return gc.dynamicClient.Resource(resource).Namespace(resourceDefaultNamespace(namespaced, item.Namespace)).Get(item.Name, metav1.GetOptions{})
} }
func (gc *GarbageCollector) updateObject(item objectReference, obj *unstructured.Unstructured) (*unstructured.Unstructured, error) {
resource, namespaced, err := gc.apiResource(item.APIVersion, item.Kind)
if err != nil {
return nil, err
}
return gc.dynamicClient.Resource(resource).Namespace(resourceDefaultNamespace(namespaced, item.Namespace)).Update(obj, metav1.UpdateOptions{})
}
func (gc *GarbageCollector) patchObject(item objectReference, patch []byte, pt types.PatchType) (*unstructured.Unstructured, error) { func (gc *GarbageCollector) patchObject(item objectReference, patch []byte, pt types.PatchType) (*unstructured.Unstructured, error) {
resource, namespaced, err := gc.apiResource(item.APIVersion, item.Kind) resource, namespaced, err := gc.apiResource(item.APIVersion, item.Kind)
if err != nil { if err != nil {
@ -83,8 +76,6 @@ func (gc *GarbageCollector) patchObject(item objectReference, patch []byte, pt t
return gc.dynamicClient.Resource(resource).Namespace(resourceDefaultNamespace(namespaced, item.Namespace)).Patch(item.Name, pt, patch, metav1.PatchOptions{}) return gc.dynamicClient.Resource(resource).Namespace(resourceDefaultNamespace(namespaced, item.Namespace)).Patch(item.Name, pt, patch, metav1.PatchOptions{})
} }
// TODO: Using Patch when strategicmerge supports deleting an entry from a
// slice of a base type.
func (gc *GarbageCollector) removeFinalizer(owner *node, targetFinalizer string) error { func (gc *GarbageCollector) removeFinalizer(owner *node, targetFinalizer string) error {
err := retry.RetryOnConflict(retry.DefaultBackoff, func() error { err := retry.RetryOnConflict(retry.DefaultBackoff, func() error {
ownerObject, err := gc.getObject(owner.identity) ownerObject, err := gc.getObject(owner.identity)
@ -112,9 +103,18 @@ func (gc *GarbageCollector) removeFinalizer(owner *node, targetFinalizer string)
klog.V(5).Infof("the %s finalizer is already removed from object %s", targetFinalizer, owner.identity) klog.V(5).Infof("the %s finalizer is already removed from object %s", targetFinalizer, owner.identity)
return nil return nil
} }
// remove the owner from dependent's OwnerReferences // remove the owner from dependent's OwnerReferences
ownerObject.SetFinalizers(newFinalizers) patch, err := json.Marshal(map[string]interface{}{
_, err = gc.updateObject(owner.identity, ownerObject) "metadata": map[string]interface{}{
"resourceVersion": accessor.GetResourceVersion(),
"finalizers": newFinalizers,
},
})
if err != nil {
return fmt.Errorf("unable to finalize %s due to an error serializing patch: %v", owner.identity, err)
}
_, err = gc.patchObject(owner.identity, patch, types.MergePatchType)
return err return err
}) })
if errors.IsConflict(err) { if errors.IsConflict(err) {