mirror of https://github.com/linka-cloud/d2vm.git
122 lines
3.7 KiB
Go
122 lines
3.7 KiB
Go
// Copyright 2022 Linka Cloud All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"fmt"
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"os"
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"path/filepath"
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"runtime"
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"strings"
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"github.com/c2h5oh/datasize"
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"github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"go.linka.cloud/d2vm"
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"go.linka.cloud/d2vm/pkg/docker"
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)
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var (
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raw bool
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pull = false
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cmdLineExtra = ""
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convertCmd = &cobra.Command{
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Use: "convert [docker image]",
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Short: "Convert Docker image to vm image",
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Args: cobra.ExactArgs(1),
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SilenceUsage: true,
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RunE: func(cmd *cobra.Command, args []string) error {
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if runtime.GOOS != "linux" {
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abs, err := filepath.Abs(output)
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if err != nil {
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return err
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}
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out := filepath.Dir(abs)
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dargs := os.Args[2:]
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for i, v := range dargs {
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if v == output {
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dargs[i] = filepath.Join("/out", filepath.Base(output))
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break
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}
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}
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return docker.RunD2VM(cmd.Context(), d2vm.Image, d2vm.Version, out, out, cmd.Name(), dargs...)
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}
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img := args[0]
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tag := "latest"
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if parts := strings.Split(img, ":"); len(parts) > 1 {
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img, tag = parts[0], parts[1]
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}
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size, err := parseSize(size)
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if err != nil {
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return err
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}
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if _, err := os.Stat(output); err == nil || !os.IsNotExist(err) {
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if !force {
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return fmt.Errorf("%s already exists", output)
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}
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}
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found := false
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if !pull {
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imgs, err := docker.ImageList(cmd.Context(), img)
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if err != nil {
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return err
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}
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found = len(imgs) == 1 && imgs[0] == fmt.Sprintf("%s:%s", img, tag)
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if found {
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logrus.Infof("using local image %s:%s", img, tag)
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}
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}
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if pull || !found {
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logrus.Infof("pulling image %s", img)
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if err := docker.Pull(cmd.Context(), img); err != nil {
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return err
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}
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}
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return d2vm.Convert(
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cmd.Context(),
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img,
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d2vm.WithSize(size),
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d2vm.WithPassword(password),
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d2vm.WithOutput(output),
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d2vm.WithCmdLineExtra(cmdLineExtra),
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d2vm.WithNetworkManager(d2vm.NetworkManager(networkManager)),
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d2vm.WithRaw(raw),
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)
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},
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}
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)
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func parseSize(s string) (int64, error) {
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var v datasize.ByteSize
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if err := v.UnmarshalText([]byte(s)); err != nil {
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return 0, err
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}
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return int64(v), nil
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}
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func init() {
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convertCmd.Flags().BoolVar(&pull, "pull", false, "Always pull docker image")
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convertCmd.Flags().StringVarP(&output, "output", "o", output, "The output image, the extension determine the image format, raw will be used if none. Supported formats: "+strings.Join(d2vm.OutputFormats(), " "))
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convertCmd.Flags().StringVarP(&password, "password", "p", "root", "The Root user password")
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convertCmd.Flags().StringVarP(&size, "size", "s", "10G", "The output image size")
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convertCmd.Flags().BoolVarP(&force, "force", "f", false, "Override output qcow2 image")
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convertCmd.Flags().StringVar(&cmdLineExtra, "append-to-cmdline", "", "Extra kernel cmdline arguments to append to the generated one")
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convertCmd.Flags().StringVar(&networkManager, "network-manager", "", "Network manager to use for the image: none, netplan, ifupdown")
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convertCmd.Flags().BoolVar(&raw, "raw", false, "Just convert the container to virtual machine image without installing anything more")
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rootCmd.AddCommand(convertCmd)
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}
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