94 lines
1.8 KiB
Go
94 lines
1.8 KiB
Go
// Package docker builds docker images
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package docker
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import (
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"archive/tar"
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"bytes"
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"io/ioutil"
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"os"
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"path/filepath"
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docker "github.com/fsouza/go-dockerclient"
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"github.com/micro/go-micro/runtime/build"
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"github.com/micro/go-micro/util/log"
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)
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type Builder struct {
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Options build.Options
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Client *docker.Client
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}
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func (d *Builder) Build(s *build.Source) (*build.Package, error) {
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image := filepath.Join(s.Repository.Path, s.Repository.Name)
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buf := new(bytes.Buffer)
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tw := tar.NewWriter(buf)
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defer tw.Close()
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dockerFile := "Dockerfile"
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// open docker file
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f, err := os.Open(filepath.Join(s.Repository.Path, s.Repository.Name, dockerFile))
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if err != nil {
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return nil, err
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}
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// read docker file
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by, err := ioutil.ReadAll(f)
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if err != nil {
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return nil, err
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}
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tarHeader := &tar.Header{
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Name: dockerFile,
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Size: int64(len(by)),
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}
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err = tw.WriteHeader(tarHeader)
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if err != nil {
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return nil, err
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}
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_, err = tw.Write(by)
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if err != nil {
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return nil, err
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}
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tr := bytes.NewReader(buf.Bytes())
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err = d.Client.BuildImage(docker.BuildImageOptions{
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Name: image,
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Dockerfile: dockerFile,
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InputStream: tr,
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OutputStream: ioutil.Discard,
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RmTmpContainer: true,
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SuppressOutput: true,
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})
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if err != nil {
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return nil, err
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}
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return &build.Package{
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Name: image,
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Path: image,
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Type: "docker",
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Source: s,
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}, nil
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}
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func (d *Builder) Clean(b *build.Package) error {
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image := filepath.Join(b.Path, b.Name)
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return d.Client.RemoveImage(image)
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}
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func NewBuilder(opts ...build.Option) build.Builder {
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options := build.Options{}
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for _, o := range opts {
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o(&options)
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}
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endpoint := "unix:///var/run/docker.sock"
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client, err := docker.NewClient(endpoint)
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if err != nil {
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log.Fatal(err)
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}
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return &Builder{
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Options: options,
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Client: client,
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}
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}
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