mirror of https://github.com/linkerd/linkerd2.git
106 lines
2.7 KiB
Go
106 lines
2.7 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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"github.com/linkerd/linkerd2/multicluster/static"
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"github.com/linkerd/linkerd2/pkg/charts"
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"github.com/linkerd/linkerd2/pkg/k8s"
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mc "github.com/linkerd/linkerd2/pkg/multicluster"
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"github.com/spf13/cobra"
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chartloader "helm.sh/helm/v3/pkg/chart/loader"
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"helm.sh/helm/v3/pkg/chartutil"
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"k8s.io/client-go/tools/clientcmd"
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"sigs.k8s.io/yaml"
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)
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func newMulticlusterUninstallCommand() *cobra.Command {
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options, err := newMulticlusterInstallOptionsWithDefault()
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if err != nil {
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fmt.Fprintf(os.Stderr, "%s", err)
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os.Exit(1)
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}
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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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k, 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 := mc.GetLinks(cmd.Context(), k.DynamicClient)
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if err != nil {
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return err
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}
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if len(links) > 0 {
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err := []string{"Please unlink the following clusters before uninstalling multicluster:"}
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for _, link := range links {
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err = append(err, fmt.Sprintf(" * %s", link.TargetClusterName))
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}
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return errors.New(strings.Join(err, "\n"))
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}
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values, err := buildMulticlusterInstallValues(cmd.Context(), options)
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if err != nil {
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return err
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}
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// Render raw values and create chart config
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rawValues, err := yaml.Marshal(values)
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if err != nil {
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return err
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}
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files := []*chartloader.BufferedFile{
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{Name: chartutil.ChartfileName},
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{Name: "templates/namespace.yaml"},
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{Name: "templates/gateway.yaml"},
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{Name: "templates/remote-access-service-mirror-rbac.yaml"},
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{Name: "templates/link-crd.yaml"},
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}
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chart := &charts.Chart{
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Name: helmMulticlusterDefaultChartName,
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Dir: helmMulticlusterDefaultChartName,
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Namespace: controlPlaneNamespace,
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RawValues: rawValues,
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Files: files,
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Fs: static.Templates,
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}
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buf, err := chart.RenderNoPartials()
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if err != nil {
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return err
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}
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stdout.Write(buf.Bytes())
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stdout.Write([]byte("---\n"))
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return nil
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},
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}
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cmd.Flags().StringVar(&options.namespace, "namespace", options.namespace, "The namespace in which the multicluster add-on is to be installed. Must not be the control plane namespace. ")
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return cmd
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}
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