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93 lines
3.4 KiB
Go
93 lines
3.4 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package utils
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import (
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"context"
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"fmt"
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"testing"
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"time"
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apps "k8s.io/api/apps/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/wait"
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clientset "k8s.io/client-go/kubernetes"
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)
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type UpdateReplicaSetFunc func(d *apps.ReplicaSet)
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func UpdateReplicaSetWithRetries(c clientset.Interface, namespace, name string, applyUpdate UpdateReplicaSetFunc, logf LogfFn, pollInterval, pollTimeout time.Duration) (*apps.ReplicaSet, error) {
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var rs *apps.ReplicaSet
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var updateErr error
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pollErr := wait.PollImmediate(pollInterval, pollTimeout, func() (bool, error) {
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var err error
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if rs, err = c.AppsV1().ReplicaSets(namespace).Get(context.TODO(), name, metav1.GetOptions{}); err != nil {
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return false, err
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}
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// Apply the update, then attempt to push it to the apiserver.
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applyUpdate(rs)
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if rs, err = c.AppsV1().ReplicaSets(namespace).Update(context.TODO(), rs, metav1.UpdateOptions{}); err == nil {
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logf("Updating replica set %q", name)
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return true, nil
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}
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updateErr = err
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return false, nil
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})
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if pollErr == wait.ErrWaitTimeout {
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pollErr = fmt.Errorf("couldn't apply the provided updated to replicaset %q: %v", name, updateErr)
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}
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return rs, pollErr
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}
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// Verify .Status.Replicas is equal to .Spec.Replicas
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func WaitRSStable(t *testing.T, clientSet clientset.Interface, rs *apps.ReplicaSet, pollInterval, pollTimeout time.Duration) error {
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desiredGeneration := rs.Generation
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if err := wait.PollImmediate(pollInterval, pollTimeout, func() (bool, error) {
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newRS, err := clientSet.AppsV1().ReplicaSets(rs.Namespace).Get(context.TODO(), rs.Name, metav1.GetOptions{})
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if err != nil {
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return false, err
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}
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return newRS.Status.ObservedGeneration >= desiredGeneration && newRS.Status.Replicas == *rs.Spec.Replicas, nil
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}); err != nil {
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return fmt.Errorf("failed to verify .Status.Replicas is equal to .Spec.Replicas for replicaset %q: %v", rs.Name, err)
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}
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return nil
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}
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func UpdateReplicaSetStatusWithRetries(c clientset.Interface, namespace, name string, applyUpdate UpdateReplicaSetFunc, logf LogfFn, pollInterval, pollTimeout time.Duration) (*apps.ReplicaSet, error) {
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var rs *apps.ReplicaSet
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var updateErr error
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pollErr := wait.PollImmediate(pollInterval, pollTimeout, func() (bool, error) {
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var err error
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if rs, err = c.AppsV1().ReplicaSets(namespace).Get(context.TODO(), name, metav1.GetOptions{}); err != nil {
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return false, err
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}
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// Apply the update, then attempt to push it to the apiserver.
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applyUpdate(rs)
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if rs, err = c.AppsV1().ReplicaSets(namespace).UpdateStatus(context.TODO(), rs, metav1.UpdateOptions{}); err == nil {
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logf("Updating replica set %q", name)
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return true, nil
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}
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updateErr = err
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return false, nil
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})
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if pollErr == wait.ErrWaitTimeout {
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pollErr = fmt.Errorf("couldn't apply the provided update to replicaset %q: %v", name, updateErr)
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}
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return rs, pollErr
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}
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