mirror of https://github.com/helm/helm
Merge pull request #6011 from thomastaylor312/feat/atomic
feat(*) Adds atomic flag to v3pull/6059/head
Taylor Thomas
6 years ago
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GitHub
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2c397b6879
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/*
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Copyright The Helm 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 action
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import (
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"fmt"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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kubefake "helm.sh/helm/pkg/kube/fake"
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"helm.sh/helm/pkg/release"
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)
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func upgradeAction(t *testing.T) *Upgrade {
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config := actionConfigFixture(t)
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upAction := NewUpgrade(config)
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upAction.Namespace = "spaced"
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return upAction
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}
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func TestUpgradeRelease_Wait(t *testing.T) {
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is := assert.New(t)
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req := require.New(t)
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upAction := upgradeAction(t)
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rel := releaseStub()
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rel.Name = "come-fail-away"
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rel.Info.Status = release.StatusDeployed
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upAction.cfg.Releases.Create(rel)
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failer := upAction.cfg.KubeClient.(*kubefake.FailingKubeClient)
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failer.WaitError = fmt.Errorf("I timed out")
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upAction.cfg.KubeClient = failer
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upAction.Wait = true
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upAction.rawValues = map[string]interface{}{}
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res, err := upAction.Run(rel.Name, buildChart())
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req.Error(err)
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is.Contains(res.Info.Description, "I timed out")
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is.Equal(res.Info.Status, release.StatusFailed)
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}
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func TestUpgradeRelease_Atomic(t *testing.T) {
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is := assert.New(t)
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req := require.New(t)
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t.Run("atomic rollback succeeds", func(t *testing.T) {
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upAction := upgradeAction(t)
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rel := releaseStub()
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rel.Name = "nuketown"
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rel.Info.Status = release.StatusDeployed
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upAction.cfg.Releases.Create(rel)
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failer := upAction.cfg.KubeClient.(*kubefake.FailingKubeClient)
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// We can't make Update error because then the rollback won't work
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failer.WatchUntilReadyError = fmt.Errorf("arming key removed")
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upAction.cfg.KubeClient = failer
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upAction.Atomic = true
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upAction.rawValues = map[string]interface{}{}
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res, err := upAction.Run(rel.Name, buildChart())
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req.Error(err)
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is.Contains(err.Error(), "arming key removed")
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is.Contains(err.Error(), "atomic")
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// Now make sure it is actually upgraded
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updatedRes, err := upAction.cfg.Releases.Get(res.Name, 3)
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is.NoError(err)
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// Should have rolled back to the previous
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is.Equal(updatedRes.Info.Status, release.StatusDeployed)
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})
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t.Run("atomic uninstall fails", func(t *testing.T) {
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upAction := upgradeAction(t)
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rel := releaseStub()
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rel.Name = "fallout"
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rel.Info.Status = release.StatusDeployed
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upAction.cfg.Releases.Create(rel)
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failer := upAction.cfg.KubeClient.(*kubefake.FailingKubeClient)
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failer.UpdateError = fmt.Errorf("update fail")
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upAction.cfg.KubeClient = failer
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upAction.Atomic = true
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upAction.rawValues = map[string]interface{}{}
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_, err := upAction.Run(rel.Name, buildChart())
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req.Error(err)
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is.Contains(err.Error(), "update fail")
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is.Contains(err.Error(), "an error occurred while rolling back the release")
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})
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}
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@ -0,0 +1,116 @@
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/*
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Copyright The Helm 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 fake implements various fake KubeClients for use in testing
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package fake
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import (
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"io"
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"time"
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v1 "k8s.io/api/core/v1"
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"k8s.io/cli-runtime/pkg/resource"
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"helm.sh/helm/pkg/kube"
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)
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// FailingKubeClient implements KubeClient for testing purposes. It also has
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// additional errors you can set to fail different functions, otherwise it
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// delegates all its calls to `PrintingKubeClient`
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type FailingKubeClient struct {
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PrintingKubeClient
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CreateError error
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WaitError error
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GetError error
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DeleteError error
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WatchUntilReadyError error
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UpdateError error
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BuildError error
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BuildUnstructuredError error
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WaitAndGetCompletedPodPhaseError error
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}
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// Create returns the configured error if set or prints
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func (f *FailingKubeClient) Create(r io.Reader) error {
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if f.CreateError != nil {
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return f.CreateError
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}
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return f.PrintingKubeClient.Create(r)
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}
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// Wait returns the configured error if set or prints
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func (f *FailingKubeClient) Wait(r io.Reader, d time.Duration) error {
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if f.WaitError != nil {
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return f.WaitError
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}
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return f.PrintingKubeClient.Wait(r, d)
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}
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// Create returns the configured error if set or prints
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func (f *FailingKubeClient) Get(r io.Reader) (string, error) {
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if f.GetError != nil {
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return "", f.GetError
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}
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return f.PrintingKubeClient.Get(r)
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}
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// Delete returns the configured error if set or prints
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func (f *FailingKubeClient) Delete(r io.Reader) error {
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if f.DeleteError != nil {
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return f.DeleteError
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}
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return f.PrintingKubeClient.Delete(r)
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}
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// WatchUntilReady returns the configured error if set or prints
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func (f *FailingKubeClient) WatchUntilReady(r io.Reader, d time.Duration) error {
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if f.WatchUntilReadyError != nil {
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return f.WatchUntilReadyError
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}
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return f.PrintingKubeClient.WatchUntilReady(r, d)
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}
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// Update returns the configured error if set or prints
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func (f *FailingKubeClient) Update(r, modifiedReader io.Reader, not, needed bool) error {
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if f.UpdateError != nil {
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return f.UpdateError
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}
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return f.PrintingKubeClient.Update(r, modifiedReader, not, needed)
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}
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// Build returns the configured error if set or prints
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func (f *FailingKubeClient) Build(r io.Reader) (kube.Result, error) {
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if f.BuildError != nil {
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return []*resource.Info{}, f.BuildError
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}
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return f.PrintingKubeClient.Build(r)
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}
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// BuildUnstructured returns the configured error if set or prints
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func (f *FailingKubeClient) BuildUnstructured(r io.Reader) (kube.Result, error) {
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if f.BuildUnstructuredError != nil {
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return []*resource.Info{}, f.BuildUnstructuredError
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}
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return f.PrintingKubeClient.Build(r)
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}
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// WaitAndGetCompletedPodPhase returns the configured error if set or prints
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func (f *FailingKubeClient) WaitAndGetCompletedPodPhase(s string, d time.Duration) (v1.PodPhase, error) {
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if f.WaitAndGetCompletedPodPhaseError != nil {
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return v1.PodSucceeded, f.WaitAndGetCompletedPodPhaseError
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}
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return f.PrintingKubeClient.WaitAndGetCompletedPodPhase(s, d)
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}
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