mirror of
https://github.com/linka-cloud/d2vm.git
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Adphi
c5bf2e1713
refactor: use Option func pattern fix: build respect the --force flag fix: compute correct in-docker input and outpout mount paths Signed-off-by: Adphi <philippe.adrien.nousse@gmail.com>
124 lines
3.9 KiB
Go
124 lines
3.9 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/google/uuid"
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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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file = "Dockerfile"
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tag = uuid.New().String()
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networkManager string
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buildArgs []string
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buildCmd = &cobra.Command{
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Use: "build [context directory]",
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Short: "Build a vm image from Dockerfile",
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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// TODO(adphi): resolve context path
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if runtime.GOOS != "linux" {
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ctxAbsPath, err := filepath.Abs(args[0])
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if err != nil {
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return err
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}
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dockerFileAbsPath, err := filepath.Abs(file)
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if err != nil {
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return err
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}
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if !strings.HasPrefix(dockerFileAbsPath, ctxAbsPath) {
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return fmt.Errorf("Dockerfile must be in the context directory path")
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}
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outputPath, 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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var (
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in = ctxAbsPath
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out = filepath.Dir(outputPath)
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)
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dargs := os.Args[2:]
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for i, v := range dargs {
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switch v {
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case file:
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rel, err := filepath.Rel(in, file)
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if err != nil {
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return fmt.Errorf("failed to construct Dockerfile container paths: %w", err)
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}
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dargs[i] = filepath.Join("/in", rel)
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case output:
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dargs[i] = filepath.Join("/out", output)
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case args[0]:
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dargs[i] = "/in"
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}
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}
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return docker.RunD2VM(cmd.Context(), d2vm.Image, d2vm.Version, in, out, cmd.Name(), os.Args[2:]...)
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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 file == "" {
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file = filepath.Join(args[0], "Dockerfile")
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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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logrus.Infof("building docker image from %s", file)
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if err := docker.Build(cmd.Context(), tag, file, args[0], buildArgs...); err != nil {
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return err
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}
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return d2vm.Convert(
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cmd.Context(),
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tag,
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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 init() {
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rootCmd.AddCommand(buildCmd)
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buildCmd.Flags().StringVarP(&file, "file", "f", "", "Name of the Dockerfile")
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buildCmd.Flags().StringArrayVar(&buildArgs, "build-arg", nil, "Set build-time variables")
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buildCmd.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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buildCmd.Flags().StringVarP(&password, "password", "p", "root", "Root user password")
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buildCmd.Flags().StringVarP(&size, "size", "s", "10G", "The output image size")
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buildCmd.Flags().BoolVar(&force, "force", false, "Override output image")
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buildCmd.Flags().StringVar(&cmdLineExtra, "append-to-cmdline", "", "Extra kernel cmdline arguments to append to the generated one")
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buildCmd.Flags().StringVar(&networkManager, "network-manager", "", "Network manager to use for the image: none, netplan, ifupdown")
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buildCmd.Flags().BoolVar(&raw, "raw", false, "Just convert the container to virtual machine image without installing anything more")
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}
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