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* Add clean up capability It cleans up Helm v2: - Configuration (Helm home) - Release data - Tiller deployment Signed-off-by: Martin Hickey <[email protected]> * Update after review comments #33 (review) #33 (comment) Signed-off-by: Martin Hickey <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| /* | ||
| Copyright The Helm 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 cmd | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "strings" | ||
|
|
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| "github.com/pkg/errors" | ||
| "github.com/spf13/cobra" | ||
|
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| "helm-2to3/pkg/v2" | ||
| ) | ||
|
|
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| /*var ( | ||
| settings *EnvSettings | ||
| )*/ | ||
|
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| func newCleanupCmd(out io.Writer) *cobra.Command { | ||
| cmd := &cobra.Command{ | ||
| Use: "cleanup", | ||
| Short: "cleanup Helm v2 configuration, release data and Tiller deployment", | ||
| Args: func(cmd *cobra.Command, args []string) error { | ||
| return nil | ||
| }, | ||
| RunE: runCleanup, | ||
| } | ||
|
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| flags := cmd.Flags() | ||
| settings.AddFlags(flags) | ||
|
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| return cmd | ||
| } | ||
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| func runCleanup(cmd *cobra.Command, args []string) error { | ||
| return Cleanup() | ||
| } | ||
|
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| // Cleanup will delete all release data for in specified namespace and owner label. It will remove | ||
| // the Tiller server deployed as per namespace and owner label. It is also delete the Helm gv2 home directory | ||
| // which contains the Helm configuration. Helm v2 will be unusable after this operation. | ||
| func Cleanup() error { | ||
| if settings.dryRun { | ||
| fmt.Printf("NOTE: This is in dry-run mode, the following actions will not be executed.\n") | ||
| fmt.Printf("Run without --dry-run to take the actions described below:\n\n") | ||
| } | ||
|
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| fmt.Printf("WARNING: Helm v2 Configuration, Release Data and Tiller Deployment will be removed.\n") | ||
| fmt.Printf("This will clean up all releases managed by Helm v2. It will not be possible to restore them if you haven't made a backup of the releases.\n") | ||
| fmt.Printf("Helm v2 will not be usable afterwards.\n\n") | ||
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| doCleanup, err := askConfirmation() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if !doCleanup { | ||
| return fmt.Errorf("Cleanup will not proceed as the user didn't answer (Y|y) in order to continue") | ||
| } | ||
|
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| fmt.Printf("\nHelm v2 data will be cleaned up.\n") | ||
|
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| fmt.Printf("[Helm 2] Releases will be deleted.\n") | ||
| retrieveOptions := v2.RetrieveOptions{ | ||
| ReleaseName: "", | ||
| TillerNamespace: settings.tillerNamespace, | ||
| TillerLabel: settings.label, | ||
| TillerOutCluster: settings.tillerOutCluster, | ||
| StorageType: settings.releaseStorage, | ||
| } | ||
| err = v2.DeleteAllReleaseVersions(retrieveOptions, settings.dryRun) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if !settings.dryRun { | ||
| fmt.Printf("[Helm 2] Releases deleted.\n") | ||
| } | ||
|
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| if !settings.tillerOutCluster { | ||
| fmt.Printf("[Helm 2] Tiller service in \"%s\" namespace will be removed.\n", settings.tillerNamespace) | ||
| err = v2.RemoveTiller(settings.tillerNamespace, settings.dryRun) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if !settings.dryRun { | ||
| fmt.Printf("[Helm 2] Tiller service in \"%s\" namespace removed.\n", settings.tillerNamespace) | ||
| } | ||
| } | ||
|
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| err = v2.RemoveHomeFolder(settings.dryRun) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| if !settings.dryRun { | ||
| fmt.Printf("Helm v2 data was cleaned up successfully.\n") | ||
| } | ||
| return nil | ||
| } | ||
|
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| func askConfirmation() (bool, error) { | ||
| fmt.Printf("[Cleanup/confirm] Are you sure you want to cleanup Helm v2 data? [y/N]: ") | ||
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| scanner := bufio.NewScanner(os.Stdin) | ||
| scanner.Scan() | ||
| if err := scanner.Err(); err != nil { | ||
| return false, errors.Wrap(err, "couldn't read from standard input") | ||
| } | ||
| answer := scanner.Text() | ||
| if strings.ToLower(answer) == "y" || strings.ToLower(answer) == "yes" { | ||
| return true, nil | ||
| } | ||
| return false, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /* | ||
| Copyright The Helm 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 cmd | ||
|
|
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| import ( | ||
| "github.com/spf13/pflag" | ||
| ) | ||
|
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| type EnvSettings struct { | ||
| tillerNamespace string | ||
| releaseStorage string | ||
| label string | ||
| dryRun bool | ||
| tillerOutCluster bool | ||
| } | ||
|
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| func New() *EnvSettings { | ||
| envSettings := EnvSettings{} | ||
| return &envSettings | ||
| } | ||
|
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| // AddFlags binds flags to the given flagset. | ||
| func (s *EnvSettings) AddFlags(fs *pflag.FlagSet) { | ||
| fs.StringVarP(&s.tillerNamespace, "tiller-ns", "t", "kube-system", "namespace of Tiller") | ||
| fs.BoolVar(&s.dryRun, "dry-run", false, "simulate a command") | ||
| fs.StringVarP(&s.label, "label", "l", "OWNER=TILLER", "label to select tiller resources by") | ||
| fs.BoolVar(&s.tillerOutCluster, "tiller-out-cluster", false, "when Tiller is not running in the cluster e.g. Tillerless") | ||
| fs.StringVarP(&s.releaseStorage, "release-storage", "s", "secrets", "v2 release storage type/object. It can be 'secrets' or 'configmaps'. This is only used with the 'tiller-out-cluster' flag") | ||
| } |
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