diff --git a/metropolis/cli/metroctl/cmd_cluster_takeownership.go b/metropolis/cli/metroctl/cmd_cluster_takeownership.go
new file mode 100644
index 0000000..068dd3b
--- /dev/null
+++ b/metropolis/cli/metroctl/cmd_cluster_takeownership.go
@@ -0,0 +1,105 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+	"os/signal"
+
+	"github.com/spf13/cobra"
+	"google.golang.org/grpc"
+
+	"source.monogon.dev/metropolis/cli/metroctl/core"
+	"source.monogon.dev/metropolis/node/core/rpc"
+	"source.monogon.dev/metropolis/node/core/rpc/resolver"
+	apb "source.monogon.dev/metropolis/proto/api"
+)
+
+var takeownershipCommand = &cobra.Command{
+	Use:   "takeownership",
+	Short: "Takes ownership of a new Metropolis cluster",
+	Long: `This takes ownership of a new Metropolis cluster by asking the new
+cluster to issue an owner certificate to for the owner key generated by a
+previous invocation of metroctl install on this machine. A single cluster
+endpoint must be provided with the --endpoints parameter.`,
+	Args: PrintUsageOnWrongArgs(cobra.ExactArgs(0)),
+	RunE: func(cmd *cobra.Command, _ []string) error {
+		ctx, _ := signal.NotifyContext(context.Background(), os.Interrupt)
+		if len(flags.clusterEndpoints) != 1 {
+			return fmt.Errorf("takeownership requires a single cluster endpoint to be provided with the --endpoints parameter")
+		}
+
+		contextName, err := cmd.Flags().GetString("context")
+		if err != nil || contextName == "" {
+			return fmt.Errorf("takeownership requires a valid context name to be provided with the --context parameter")
+		}
+
+		ca, err := core.GetClusterCAWithTOFU(ctx, connectOptions())
+		if err != nil {
+			return fmt.Errorf("could not retrieve cluster CA: %w", err)
+		}
+
+		// Retrieve the cluster owner's private key, and use it to construct
+		// ephemeral credentials. Then, dial the cluster.
+		opk, err := core.GetOwnerKey(flags.configPath)
+		if errors.Is(err, core.ErrNoCredentials) {
+			return fmt.Errorf("owner key does not exist. takeownership needs to be executed on the same system that has previously installed the cluster using metroctl install")
+		}
+		if err != nil {
+			return fmt.Errorf("couldn't get owner's key: %w", err)
+		}
+		opts, err := core.DialOpts(ctx, connectOptions())
+		if err != nil {
+			return fmt.Errorf("while configuring cluster dial opts: %w", err)
+		}
+		creds, err := rpc.NewEphemeralCredentials(opk, rpc.WantRemoteCluster(ca))
+		if err != nil {
+			return fmt.Errorf("while generating ephemeral credentials: %w", err)
+		}
+		opts = append(opts, grpc.WithTransportCredentials(creds))
+
+		cc, err := grpc.Dial(resolver.MetropolisControlAddress, opts...)
+		if err != nil {
+			return fmt.Errorf("while dialing the cluster: %w", err)
+		}
+		aaa := apb.NewAAAClient(cc)
+
+		ownerCert, err := rpc.RetrieveOwnerCertificate(ctx, aaa, opk)
+		if err != nil {
+			return fmt.Errorf("failed to retrive owner certificate from cluster: %w", err)
+		}
+
+		if err := core.WriteOwnerCertificate(flags.configPath, ownerCert.Certificate[0]); err != nil {
+			log.Printf("Failed to store retrieved owner certificate: %v", err)
+			return fmt.Errorf("sorry, the cluster has been lost as taking ownership cannot be repeated. Fix the reason the file couldn't be written and reinstall the node")
+		}
+		log.Print("Successfully retrieved owner credentials! You now own this cluster. Setting up kubeconfig now...")
+
+		// If the user has metroctl in their path, use the metroctl from path as
+		// a credential plugin. Otherwise use the path to the currently-running
+		// metroctl.
+		metroctlPath := "metroctl"
+		if _, err := exec.LookPath("metroctl"); err != nil {
+			metroctlPath, err = os.Executable()
+			if err != nil {
+				return fmt.Errorf("failed to create kubectl entry as metroctl is neither in PATH nor can its absolute path be determined: %w", err)
+			}
+		}
+		// TODO(q3k, issues/144): this only works as long as all nodes are kubernetes controller
+		// nodes. This won't be the case for too long. Figure this out.
+		configName := "metroctl"
+		if err := core.InstallKubeletConfig(ctx, metroctlPath, connectOptions(), configName, flags.clusterEndpoints[0]); err != nil {
+			return fmt.Errorf("failed to install metroctl/k8s integration: %w", err)
+		}
+		log.Printf("Success! kubeconfig is set up. You can now run kubectl --context=%s ... to access the Kubernetes cluster.", configName)
+		return nil
+	},
+}
+
+func init() {
+	takeownershipCommand.Flags().String("context", "metroctl", "The name for the kubernetes context to configure")
+	clusterCmd.AddCommand(takeownershipCommand)
+}