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109 lines
3.4 KiB
Go
109 lines
3.4 KiB
Go
/*
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Copyright 2020 The Flux 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 main
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import (
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"context"
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"fmt"
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"github.com/manifoldco/promptui"
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"github.com/spf13/cobra"
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"k8s.io/apimachinery/pkg/api/errors"
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"github.com/fluxcd/flux2/v2/internal/utils"
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"github.com/fluxcd/flux2/v2/pkg/uninstall"
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)
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var uninstallCmd = &cobra.Command{
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Use: "uninstall",
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Args: cobra.NoArgs,
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Short: "Uninstall Flux and its custom resource definitions",
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Long: `The uninstall command removes the Flux components and the toolkit.fluxcd.io resources from the cluster.`,
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Example: ` # Uninstall Flux components, its custom resources and namespace
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flux uninstall --namespace=flux-system
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# Uninstall Flux but keep the namespace
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flux uninstall --namespace=infra --keep-namespace=true`,
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RunE: uninstallCmdRun,
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}
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type uninstallFlags struct {
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keepNamespace bool
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dryRun bool
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silent bool
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}
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var uninstallArgs uninstallFlags
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func init() {
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uninstallCmd.Flags().BoolVar(&uninstallArgs.keepNamespace, "keep-namespace", false,
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"skip namespace deletion")
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uninstallCmd.Flags().BoolVar(&uninstallArgs.dryRun, "dry-run", false,
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"only print the objects that would be deleted")
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uninstallCmd.Flags().BoolVarP(&uninstallArgs.silent, "silent", "s", false,
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"delete components without asking for confirmation")
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rootCmd.AddCommand(uninstallCmd)
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}
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func uninstallCmdRun(cmd *cobra.Command, args []string) error {
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ctx, cancel := context.WithTimeout(context.Background(), rootArgs.timeout)
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defer cancel()
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kubeClient, err := utils.KubeClient(kubeconfigArgs, kubeclientOptions)
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if err != nil {
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return err
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}
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if !uninstallArgs.dryRun && !uninstallArgs.silent {
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info, err := getFluxClusterInfo(ctx, kubeClient)
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if err != nil {
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if !errors.IsNotFound(err) {
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return fmt.Errorf("cluster info unavailable: %w", err)
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}
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}
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promptLabel := "Are you sure you want to delete Flux and its custom resource definitions"
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if !installManagedByFlux(info.managedBy) {
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promptLabel = fmt.Sprintf("Flux is managed by %s! Are you sure you want to delete Flux and its CRDs using Flux CLI", info.managedBy)
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}
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prompt := promptui.Prompt{
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Label: promptLabel,
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IsConfirm: true,
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}
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if _, err := prompt.Run(); err != nil {
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return fmt.Errorf("aborting")
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}
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}
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logger.Actionf("deleting components in %s namespace", *kubeconfigArgs.Namespace)
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uninstall.Components(ctx, logger, kubeClient, *kubeconfigArgs.Namespace, uninstallArgs.dryRun)
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logger.Actionf("deleting toolkit.fluxcd.io finalizers in all namespaces")
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uninstall.Finalizers(ctx, logger, kubeClient, uninstallArgs.dryRun)
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logger.Actionf("deleting toolkit.fluxcd.io custom resource definitions")
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uninstall.CustomResourceDefinitions(ctx, logger, kubeClient, uninstallArgs.dryRun)
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if !uninstallArgs.keepNamespace {
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uninstall.Namespace(ctx, logger, kubeClient, *kubeconfigArgs.Namespace, uninstallArgs.dryRun)
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}
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logger.Successf("uninstall finished")
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return nil
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}
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