mirror of https://github.com/linkerd/linkerd2.git
74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
package cmd
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import (
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"errors"
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"fmt"
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"os"
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"strings"
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pkgCmd "github.com/linkerd/linkerd2/pkg/cmd"
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"github.com/linkerd/linkerd2/pkg/k8s"
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"github.com/spf13/cobra"
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kerrors "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/client-go/tools/clientcmd"
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)
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func newMulticlusterUninstallCommand() *cobra.Command {
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var output string
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cmd := &cobra.Command{
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Use: "uninstall",
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Short: "Output Kubernetes configs to uninstall the Linkerd multicluster add-on",
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Args: cobra.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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rules := clientcmd.NewDefaultClientConfigLoadingRules()
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rules.ExplicitPath = kubeconfigPath
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loader := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(rules, &clientcmd.ConfigOverrides{})
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config, err := loader.RawConfig()
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if err != nil {
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return err
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}
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if kubeContext != "" {
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config.CurrentContext = kubeContext
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}
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k8sAPI, err := k8s.NewAPI(kubeconfigPath, config.CurrentContext, impersonate, impersonateGroup, 0)
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if err != nil {
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return err
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}
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links, err := k8sAPI.L5dCrdClient.LinkV1alpha3().Links("").List(cmd.Context(), metav1.ListOptions{})
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if err != nil && !kerrors.IsNotFound(err) {
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return err
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}
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if len(links.Items) > 0 {
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err := []string{"Please unlink the following clusters before uninstalling multicluster:"}
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for _, link := range links.Items {
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err = append(err, fmt.Sprintf(" * %s", link.Spec.TargetClusterName))
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}
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return errors.New(strings.Join(err, "\n"))
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}
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selector, err := pkgCmd.GetLabelSelector(k8s.LinkerdExtensionLabel, MulticlusterExtensionName, MulticlusterLegacyExtension)
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if err != nil {
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return err
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}
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err = pkgCmd.Uninstall(cmd.Context(), k8sAPI, selector, output)
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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return nil
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},
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}
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cmd.PersistentFlags().StringVarP(&output, "output", "o", "yaml", "Output format. One of: json|yaml")
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return cmd
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}
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