feat(push): 'image push' to single or multiple machines via unregistry proxy

cmd/uncloud/image/push.go

@@ -1,14 +1,18 @@
 package image
 
 import (
+	"context"
 	"fmt"
 
+	"github.com/docker/compose/v2/pkg/progress"
 	"github.com/psviderski/uncloud/internal/cli"
 	"github.com/spf13/cobra"
 )
 
 type pushOptions struct {
+	image    string
 	machines []string
+	context  string
 }
 
 func NewPushCommand() *cobra.Command {
@@ -29,19 +33,37 @@ The image is uploaded to the machine which CLI is connected to (default) or the
   uc image push myapp:latest -m machine1,machine2,machine3`,
 		Args: cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
-			image := args[0]
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
 
-			machines := cli.ExpandCommaSeparatedValues(opts.machines)
-
-			// TODO: Implement image push logic
-			fmt.Printf("Would push image %q to machines: %v\n", image, machines)
-			return fmt.Errorf("image push not yet implemented")
+			opts.image = args[0]
+			return push(cmd.Context(), uncli, opts)
 		},
 	}
 
 	cmd.Flags().StringSliceVarP(&opts.machines, "machine", "m", nil,
 		"Machine names to push the image to. Can be specified multiple times or as a comma-separated "+
 			"list of machine names. (default is connected machine)")
+	cmd.Flags().StringVarP(
+		&opts.context, "context", "c", "",
+		"Name of the cluster context. (default is the current context)",
+	)
 
 	return cmd
 }
+
+func push(ctx context.Context, uncli *cli.CLI, opts pushOptions) error {
+	client, err := uncli.ConnectCluster(ctx, opts.context)
+	if err != nil {
+		return fmt.Errorf("connect to cluster: %w", err)
+	}
+	defer client.Close()
+
+	machines := cli.ExpandCommaSeparatedValues(opts.machines)
+
+	return progress.RunWithTitle(ctx, func(ctx context.Context) error {
+		if err = client.PushImage(ctx, opts.image, machines); err != nil {
+			return fmt.Errorf("push image to cluster: %w", err)
+		}
+		return nil
+	}, uncli.ProgressOut(), fmt.Sprintf("Pushing image %s to cluster", opts.image))
+}