feat(cli): add envd images remove command (#1007)

Signed-off-by: Triple-Z <me@triplez.cn>

Signed-off-by: Triple-Z <me@triplez.cn>

pkg/app/image.go

@@ -40,6 +40,7 @@ var CommandImage = &cli.Command{
 	Subcommands: []*cli.Command{
 		CommandDescribeImage,
 		CommandListImage,
+		CommandRemoveImage,
 	},
 }
 

pkg/app/image_remove.go

@@ -0,0 +1,68 @@
+// Copyright 2022 The envd Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package app
+
+import (
+	"fmt"
+
+	"github.com/cockroachdb/errors"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli/v2"
+
+	"github.com/tensorchord/envd/pkg/docker"
+)
+
+var CommandRemoveImage = &cli.Command{
+	Name:    "remove",
+	Aliases: []string{"r"},
+	Usage:   "Remove an envd image",
+	Flags: []cli.Flag{
+		&cli.StringFlag{
+			Name:    "image",
+			Usage:   "Specify the image name to be removed",
+			Aliases: []string{"i"},
+		},
+		&cli.StringFlag{
+			Name:        "tag",
+			Usage:       "Remove the image with a specific tag",
+			Aliases:     []string{"t"},
+			DefaultText: "dev",
+		},
+	},
+	Action: removeImage,
+}
+
+func removeImage(clicontext *cli.Context) error {
+	imageName := clicontext.String("image")
+	if imageName == "" {
+		return errors.New("image name is required, find images by `envd images list`")
+	}
+	tag := clicontext.String("tag")
+	if tag == "" {
+		logrus.Debug("tag not specified, using default tag: `dev`")
+		tag = "dev"
+	}
+	imageNameWithTag := fmt.Sprintf("%s:%s", imageName, tag)
+
+	dockerClient, err := docker.NewClient(clicontext.Context)
+	if err != nil {
+		return err
+	}
+	if err := dockerClient.RemoveImage(clicontext.Context, imageNameWithTag); err != nil {
+		return errors.Errorf("remove image %s failed: %w", imageNameWithTag, err)
+	}
+	logrus.Infof("image(%s) has removed", imageNameWithTag)
+	return nil
+}