update init command to send RPC calls over SSH tunnel

cmd/uncloud/machine/add.go

@@ -2,8 +2,6 @@ package machine
 
 import (
 	"context"
-	"errors"
-	"fmt"
 	"github.com/spf13/cobra"
 	"uncloud/internal/cli"
 )
@@ -19,6 +17,7 @@ type addOptions struct {
 func NewAddCommand() *cobra.Command {
 	opts := addOptions{}
 	cmd := &cobra.Command{
+		// TODO: add support for [USER@]HOST[:PORT] syntax
 		Use:   "add HOST",
 		Short: "Add a new machine to a cluster.",
 		Args:  cobra.ExactArgs(1),
@@ -38,45 +37,5 @@ func NewAddCommand() *cobra.Command {
 }
 
 func add(ctx context.Context, uncli *cli.CLI, host string, opts addOptions) error {
-	var (
-		cluster *cli.Cluster
-		err     error
-	)
-	if opts.cluster == "" {
-		// If the cluster is not specified, use the current cluster. If there are no clusters, create a default one.
-		cluster, err = uncli.GetCurrentCluster()
-		if err != nil {
-			if errors.Is(err, cli.ErrNotFound) {
-				// Do not create a default cluster if there are already clusters but the current cluster is not set.
-				clusters, cErr := uncli.ListClusters()
-				if cErr != nil {
-					return fmt.Errorf("list clusters: %w", cErr)
-				}
-				if len(clusters) > 0 {
-					return errors.New("the current cluster is not set in the Uncloud config. " +
-						"Please specify a cluster with the --cluster flag or set current_cluster in the config")
-				}
-
-				cluster, err = uncli.CreateDefaultCluster()
-				if err != nil {
-					return fmt.Errorf("create default cluster: %w", err)
-				}
-				fmt.Printf("Created %q cluster\n", cluster.Name)
-			} else {
-				return fmt.Errorf("get current cluster: %w", err)
-			}
-		}
-	} else {
-		cluster, err = uncli.GetCluster(opts.cluster)
-		if err != nil {
-			return fmt.Errorf("get cluster %q: %w", opts.cluster, err)
-		}
-	}
-
-	name, err := cluster.AddMachine(ctx, opts.name, opts.user, host, opts.port, opts.sshKey)
-	if err != nil {
-		return fmt.Errorf("add machine to cluster %q: %w", cluster.Name, err)
-	}
-	fmt.Printf("Machine %q added to cluster %q\n", name, cluster.Name)
-	return nil
+	return uncli.AddMachine(ctx, opts.cluster, opts.name, opts.user, host, opts.port, opts.sshKey)
 }