refactor(cli): move cmd/uncloud to cmd/uc, change the artifact name uncloud_* -> uc_*

cmd/uc/dns/release.go

@@ -0,0 +1,44 @@
+package dns
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/spf13/cobra"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+func NewReleaseCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "release",
+		Short: "Release the reserved cluster domain.",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+			return release(cmd.Context(), uncli)
+		},
+	}
+
+	return cmd
+}
+
+func release(ctx context.Context, uncli *cli.CLI) error {
+	client, err := uncli.ConnectCluster(ctx)
+	if err != nil {
+		return fmt.Errorf("connect to cluster: %w", err)
+	}
+	defer client.Close()
+
+	domain, err := client.ReleaseDomain(ctx, &emptypb.Empty{})
+	if err != nil {
+		if status.Convert(err).Code() == codes.NotFound {
+			return errors.New("no domain reserved")
+		}
+	}
+
+	fmt.Printf("Released cluster domain: %s\n", domain.Name)
+	return nil
+}