forked from kubernetes/kubernetes
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
node controller: set both deprecated Beta and GA labels for Zone/Regi…
…on topology Signed-off-by: Andrew Sy Kim <[email protected]>
- Loading branch information
1 parent
5acabf2
commit 3032c81
Showing
5 changed files
with
302 additions
and
1 deletion.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
102 changes: 102 additions & 0 deletions
102
staging/src/k8s.io/cloud-provider/node/helpers/labels.go
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| /* | ||
| Copyright 2019 The Kubernetes Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package helpers | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| utilruntime "k8s.io/apimachinery/pkg/util/runtime" | ||
| "k8s.io/apimachinery/pkg/util/strategicpatch" | ||
| "k8s.io/apimachinery/pkg/util/wait" | ||
| clientset "k8s.io/client-go/kubernetes" | ||
| clientretry "k8s.io/client-go/util/retry" | ||
| "k8s.io/klog" | ||
| ) | ||
|
|
||
| var updateLabelBackoff = wait.Backoff{ | ||
| Steps: 5, | ||
| Duration: 100 * time.Millisecond, | ||
| Jitter: 1.0, | ||
| } | ||
|
|
||
| // AddOrUpdateLabelsOnNode updates the labels on the node and returns true on | ||
| // success and false on failure. | ||
| func AddOrUpdateLabelsOnNode(kubeClient clientset.Interface, labelsToUpdate map[string]string, node *v1.Node) bool { | ||
| err := addOrUpdateLabelsOnNode(kubeClient, node.Name, labelsToUpdate) | ||
| if err != nil { | ||
| utilruntime.HandleError( | ||
| fmt.Errorf( | ||
| "unable to update labels %+v for Node %q: %v", | ||
| labelsToUpdate, | ||
| node.Name, | ||
| err)) | ||
| return false | ||
| } | ||
|
|
||
| klog.V(4).Infof("Updated labels %+v to Node %v", labelsToUpdate, node.Name) | ||
| return true | ||
| } | ||
|
|
||
| func addOrUpdateLabelsOnNode(kubeClient clientset.Interface, nodeName string, labelsToUpdate map[string]string) error { | ||
| firstTry := true | ||
| return clientretry.RetryOnConflict(updateLabelBackoff, func() error { | ||
| var err error | ||
| var node *v1.Node | ||
| // First we try getting node from the API server cache, as it's cheaper. If it fails | ||
| // we get it from etcd to be sure to have fresh data. | ||
| if firstTry { | ||
| node, err = kubeClient.CoreV1().Nodes().Get(nodeName, metav1.GetOptions{ResourceVersion: "0"}) | ||
| firstTry = false | ||
| } else { | ||
| node, err = kubeClient.CoreV1().Nodes().Get(nodeName, metav1.GetOptions{}) | ||
| } | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // Make a copy of the node and update the labels. | ||
| newNode := node.DeepCopy() | ||
| if newNode.Labels == nil { | ||
| newNode.Labels = make(map[string]string) | ||
| } | ||
| for key, value := range labelsToUpdate { | ||
| newNode.Labels[key] = value | ||
| } | ||
|
|
||
| oldData, err := json.Marshal(node) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to marshal the existing node %#v: %v", node, err) | ||
| } | ||
| newData, err := json.Marshal(newNode) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to marshal the new node %#v: %v", newNode, err) | ||
| } | ||
| patchBytes, err := strategicpatch.CreateTwoWayMergePatch(oldData, newData, &v1.Node{}) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to create a two-way merge patch: %v", err) | ||
| } | ||
| if _, err := kubeClient.CoreV1().Nodes().Patch(node.Name, types.StrategicMergePatchType, patchBytes); err != nil { | ||
| return fmt.Errorf("failed to patch the node: %v", err) | ||
| } | ||
| return nil | ||
| }) | ||
| } |