cli/ctrd: support push command cli

Signed-off-by: Wei Fu <fuweid89@gmail.com>

cli/main.go

@@ -16,6 +16,7 @@ func main() {
 
 	// Add all subcommands.
 	cli.AddCommand(base, &PullCommand{})
+	cli.AddCommand(base, &PushCommand{})
 	cli.AddCommand(base, &CreateCommand{})
 	cli.AddCommand(base, &StartCommand{})
 	cli.AddCommand(base, &StopCommand{})

cli/push.go

@@ -0,0 +1,64 @@
+package main
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/alibaba/pouch/pkg/reference"
+
+	"github.com/spf13/cobra"
+)
+
+// pushDescription is used to describe push command in detail and auto generate command doc.
+var pushDescription = "Push a local image to remote registry."
+
+// PushCommand is used to implement 'push' command, it pushes image to some registries.
+type PushCommand struct {
+	baseCommand
+}
+
+// Init initializes push command.
+func (p *PushCommand) Init(c *Cli) {
+	p.cli = c
+
+	p.cmd = &cobra.Command{
+		Use:   "push IMAGE[:TAG]",
+		Short: "Push an image to registry",
+		Args:  cobra.ExactArgs(1),
+		Long:  pushDescription,
+		RunE: func(_ *cobra.Command, args []string) error {
+			return p.runPush(args[0])
+		},
+		Example: p.pushExample(),
+	}
+}
+
+// runPush pushes a image.
+func (p *PushCommand) runPush(refImage string) error {
+	apiClient := p.cli.Client()
+
+	namedRef, err := reference.Parse(refImage)
+	if err != nil {
+		return err
+	}
+	namedRef = reference.TrimTagForDigest(reference.WithDefaultTagIfMissing(namedRef))
+
+	responseBody, err := apiClient.ImagePush(context.TODO(), namedRef.String(), fetchRegistryAuth(namedRef.Name()))
+	if err != nil {
+		return fmt.Errorf("failed to push image: %v", err)
+	}
+	defer responseBody.Close()
+
+	return showProgress(responseBody)
+}
+
+// pushExample shows examples in push command, and is used in auto-generated cli docs.
+func (p *PushCommand) pushExample() string {
+	return `$ pouch push docker.io/testing/busybox:1.25
+docker.io/testing/busybox:1.25:                                                   resolved |++++++++++++++++++++++++++++++++++++++|
+manifest-sha256:29f5d56d12684887bdfa50dcd29fc31eea4aaf4ad3bec43daf19026a7ce69912: done
+layer-sha256:56bec22e355981d8ba0878c6c2f23b21f422f30ab0aba188b54f1ffeff59c190:    done
+config-sha256:e02e811dd08fd49e7f6032625495118e63f597eb150403d02e3238af1df240ba:   done
+elapsed: 0.0 s                                                                    total:   0.0 B (0.0 B/s)
+`
+}

ctrd/image.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"io"
+	"net/http"
 	"sync"
 	"time"
 
@@ -232,7 +233,16 @@ func (c *Client) PushImage(ctx context.Context, ref string, authConfig *types.Au
 		stream.Close()
 		stream.Wait()
 	}()
+
 	if err != nil {
+		stream.WriteObject(jsonstream.JSONMessage{
+			Error: &jsonstream.JSONError{
+				Code:    http.StatusInternalServerError,
+				Message: err.Error(),
+			},
+			ErrorMessage: err.Error(),
+		})
+
 		return err
 	}