mirror of https://github.com/helm/helm
Merge 597eb278e8 into 8602af9e92
Jared Rivera
7 months ago
committed by
GitHub
commit
9164e84f76
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Rollback was a success! Happy Helming!
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@ -0,0 +1,153 @@
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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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"bytes"
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"context"
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"strings"
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"testing"
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"text/template"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"helm.sh/helm/v3/pkg/chart"
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"helm.sh/helm/v3/pkg/release"
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)
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func rollbackTestActions(t *testing.T) (*Install, *Upgrade, *Rollback) {
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config := actionConfigFixture(t)
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instAction := NewInstall(config)
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instAction.Namespace = "spaced"
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instAction.ReleaseName = "rollback-test"
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upAction := NewUpgrade(config)
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upAction.Namespace = "spaced"
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rollbackAction := NewRollback(config)
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rollbackAction.Wait = true
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return instAction, upAction, rollbackAction
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}
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func buildChartWithRollbackHooks(hookNamePrefix string) *chart.Chart {
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hookTmpl, _ := template.New("hook-template").Parse(`kind: ConfigMap
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metadata:
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name: {{.Prefix}}-{{.Type}}
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annotations:
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"helm.sh/hook": {{.Type}}
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data:
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name: value`)
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type HookTmplArgs struct {
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Prefix string
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Type release.HookEvent
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}
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var preRollbackManifest, postRollbackManifest bytes.Buffer
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hookTmpl.Execute(&preRollbackManifest, HookTmplArgs{Prefix: hookNamePrefix, Type: release.HookPreRollback})
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hookTmpl.Execute(&postRollbackManifest, HookTmplArgs{Prefix: hookNamePrefix, Type: release.HookPostRollback})
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return buildChart(func(opts *chartOptions) {
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opts.Metadata.Name = "rollback-test"
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opts.Templates = []*chart.File{
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{Name: "templates/pre-rollback", Data: preRollbackManifest.Bytes()},
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{Name: "templates/post-rollback", Data: postRollbackManifest.Bytes()},
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}
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})
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}
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func TestRollbackRelease_useTargetHooks(t *testing.T) {
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is := assert.New(t)
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req := require.New(t)
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instAction, upAction, rollbackAction := rollbackTestActions(t)
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vals := map[string]interface{}{}
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// create release with chart A (hooks prefixed with "chart-a")
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ctx, done := context.WithCancel(context.Background())
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relV1, err := instAction.RunWithContext(ctx, buildChartWithRollbackHooks("chart-a"), vals)
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done()
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req.NoError(err)
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// upgrade release with chart B (hooks prefixed with "chart-b")
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ctx, done = context.WithCancel(context.Background())
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relV2, err := upAction.RunWithContext(ctx, relV1.Name, buildChartWithRollbackHooks("chart-b"), vals)
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done()
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req.NoError(err)
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// rollback release to chart A (B -> A)
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err = rollbackAction.Run(relV2.Name)
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req.NoError(err)
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relV3, err := rollbackAction.cfg.Releases.Last(relV2.Name)
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req.NoError(err)
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// check hooks WERE NOT RUN from source release (chart-b)
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for _, hook := range relV2.Hooks {
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is.True(strings.HasPrefix(hook.Name, "chart-b"))
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is.True(hook.LastRun.StartedAt.IsZero())
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}
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// check hooks WERE RUN from target release (chart-a)
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for _, hook := range relV3.Hooks {
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is.True(strings.HasPrefix(hook.Name, "chart-a"))
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is.False(hook.LastRun.StartedAt.IsZero())
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}
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}
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func TestRollbackRelease_useSourceHooks(t *testing.T) {
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is := assert.New(t)
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req := require.New(t)
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instAction, upAction, rollbackAction := rollbackTestActions(t)
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vals := map[string]interface{}{}
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// create release with chart A (hooks prefixed with "chart-a")
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ctx, done := context.WithCancel(context.Background())
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relV1, err := instAction.RunWithContext(ctx, buildChartWithRollbackHooks("chart-a"), vals)
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done()
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req.NoError(err)
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// upgrade release with chart B (hooks prefixed with "chart-b")
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ctx, done = context.WithCancel(context.Background())
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relV2, err := upAction.RunWithContext(ctx, relV1.Name, buildChartWithRollbackHooks("chart-b"), vals)
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done()
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req.NoError(err)
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// rollback release to chart A (B -> A) BUT run hooks of current release
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rollbackAction.UseSourceHooks = true
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err = rollbackAction.Run(relV2.Name)
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req.NoError(err)
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relV3, err := rollbackAction.cfg.Releases.Last(relV2.Name)
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req.NoError(err)
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// check hooks WERE RUN from source release (chart-b)
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for _, hook := range relV2.Hooks {
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is.True(strings.HasPrefix(hook.Name, "chart-b"))
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is.False(hook.LastRun.StartedAt.IsZero())
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}
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// check hooks WERE NOT RUN from target release (chart-a)
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for _, hook := range relV3.Hooks {
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is.True(strings.HasPrefix(hook.Name, "chart-a"))
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is.True(hook.LastRun.StartedAt.IsZero())
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}
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}
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