Rebase master (autorun)
This commit is contained in:
parent
4386edff0b
commit
6c168a8986
53
builder.go
53
builder.go
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@ -24,12 +24,57 @@ func NewBuilder(runtime *Runtime) *Builder {
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}
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}
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}
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}
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func (builder *Builder) mergeConfig(userConf, imageConf *Config) {
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if userConf.Hostname != "" {
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userConf.Hostname = imageConf.Hostname
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}
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if userConf.User != "" {
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userConf.User = imageConf.User
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}
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if userConf.Memory == 0 {
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userConf.Memory = imageConf.Memory
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}
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if userConf.MemorySwap == 0 {
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userConf.MemorySwap = imageConf.MemorySwap
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}
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if userConf.PortSpecs == nil || len(userConf.PortSpecs) == 0 {
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userConf.PortSpecs = imageConf.PortSpecs
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}
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if !userConf.Tty {
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userConf.Tty = userConf.Tty
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}
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if !userConf.OpenStdin {
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userConf.OpenStdin = imageConf.OpenStdin
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}
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if !userConf.StdinOnce {
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userConf.StdinOnce = imageConf.StdinOnce
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}
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if userConf.Env == nil || len(userConf.Env) == 0 {
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userConf.Env = imageConf.Env
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}
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if userConf.Cmd == nil || len(userConf.Cmd) == 0 {
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userConf.Cmd = imageConf.Cmd
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}
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if userConf.Dns == nil || len(userConf.Dns) == 0 {
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userConf.Dns = imageConf.Dns
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}
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}
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func (builder *Builder) Create(config *Config) (*Container, error) {
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func (builder *Builder) Create(config *Config) (*Container, error) {
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// Lookup image
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// Lookup image
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img, err := builder.repositories.LookupImage(config.Image)
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img, err := builder.repositories.LookupImage(config.Image)
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if err != nil {
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if err != nil {
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return nil, err
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return nil, err
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}
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}
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if img.Config != nil {
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builder.mergeConfig(config, img.Config)
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}
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if config.Cmd == nil {
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return nil, fmt.Errorf("No command specified")
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}
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// Generate id
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// Generate id
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id := GenerateId()
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id := GenerateId()
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// Generate default hostname
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// Generate default hostname
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@ -87,7 +132,7 @@ func (builder *Builder) Create(config *Config) (*Container, error) {
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// Commit creates a new filesystem image from the current state of a container.
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// Commit creates a new filesystem image from the current state of a container.
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// The image can optionally be tagged into a repository
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// The image can optionally be tagged into a repository
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func (builder *Builder) Commit(container *Container, repository, tag, comment, author string) (*Image, error) {
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func (builder *Builder) Commit(container *Container, repository, tag, comment, author string, config *Config) (*Image, error) {
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// FIXME: freeze the container before copying it to avoid data corruption?
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// FIXME: freeze the container before copying it to avoid data corruption?
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// FIXME: this shouldn't be in commands.
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// FIXME: this shouldn't be in commands.
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rwTar, err := container.ExportRw()
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rwTar, err := container.ExportRw()
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@ -95,7 +140,7 @@ func (builder *Builder) Commit(container *Container, repository, tag, comment, a
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return nil, err
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return nil, err
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}
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}
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// Create a new image from the container's base layers + a new layer from container changes
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// Create a new image from the container's base layers + a new layer from container changes
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img, err := builder.graph.Create(rwTar, container, comment, author)
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img, err := builder.graph.Create(rwTar, container, comment, author, config)
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if err != nil {
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if err != nil {
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return nil, err
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return nil, err
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}
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}
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@ -182,7 +227,7 @@ func (builder *Builder) Build(dockerfile io.Reader, stdout io.Writer) (*Image, e
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}
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}
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// Commit the container
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// Commit the container
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base, err = builder.Commit(c, "", "", "", "")
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base, err = builder.Commit(c, "", "", "", "", nil)
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if err != nil {
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if err != nil {
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return nil, err
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return nil, err
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}
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}
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@ -234,7 +279,7 @@ func (builder *Builder) Build(dockerfile io.Reader, stdout io.Writer) (*Image, e
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return nil, err
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return nil, err
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}
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}
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base, err = builder.Commit(c, "", "", "", "")
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base, err = builder.Commit(c, "", "", "", "", nil)
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if err != nil {
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if err != nil {
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return nil, err
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return nil, err
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}
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}
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@ -106,7 +106,7 @@ func (srv *Server) CmdInsert(stdin io.ReadCloser, stdout rcli.DockerConn, args .
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return err
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return err
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}
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}
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// FIXME: Handle custom repo, tag comment, author
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// FIXME: Handle custom repo, tag comment, author
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img, err = b.Commit(c, "", "", img.Comment, img.Author)
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img, err = b.Commit(c, "", "", img.Comment, img.Author, nil)
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if err != nil {
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if err != nil {
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return err
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return err
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}
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}
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@ -225,7 +225,9 @@ func TestCommitAutoRun(t *testing.T) {
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t.Fatal(err)
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t.Fatal(err)
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}
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}
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defer nuke(runtime)
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defer nuke(runtime)
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container1, err := runtime.Create(
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builder := NewBuilder(runtime)
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container1, err := builder.Create(
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&Config{
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&Config{
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Image: GetTestImage(runtime).Id,
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Image: GetTestImage(runtime).Id,
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Cmd: []string{"/bin/sh", "-c", "echo hello > /world"},
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Cmd: []string{"/bin/sh", "-c", "echo hello > /world"},
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@ -256,8 +258,7 @@ func TestCommitAutoRun(t *testing.T) {
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}
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}
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// FIXME: Make a TestCommit that stops here and check docker.root/layers/img.id/world
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// FIXME: Make a TestCommit that stops here and check docker.root/layers/img.id/world
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container2, err := builder.Create(
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container2, err := runtime.Create(
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&Config{
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&Config{
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Image: img.Id,
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Image: img.Id,
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},
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},
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107
runtime.go
107
runtime.go
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@ -78,113 +78,6 @@ func (runtime *Runtime) containerRoot(id string) string {
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return path.Join(runtime.repository, id)
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return path.Join(runtime.repository, id)
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}
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}
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func (runtime *Runtime) mergeConfig(userConf, imageConf *Config) {
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if userConf.Hostname == "" {
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userConf.Hostname = imageConf.Hostname
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}
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if userConf.User == "" {
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userConf.User = imageConf.User
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}
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if userConf.Memory == 0 {
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userConf.Memory = imageConf.Memory
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}
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if userConf.MemorySwap == 0 {
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userConf.MemorySwap = imageConf.MemorySwap
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}
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if userConf.PortSpecs == nil || len(userConf.PortSpecs) == 0 {
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userConf.PortSpecs = imageConf.PortSpecs
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}
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if !userConf.Tty {
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userConf.Tty = userConf.Tty
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}
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if !userConf.OpenStdin {
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userConf.OpenStdin = imageConf.OpenStdin
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}
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if !userConf.StdinOnce {
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userConf.StdinOnce = imageConf.StdinOnce
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}
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if userConf.Env == nil || len(userConf.Env) == 0 {
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userConf.Env = imageConf.Env
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}
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if userConf.Cmd == nil || len(userConf.Cmd) == 0 {
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userConf.Cmd = imageConf.Cmd
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}
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if userConf.Dns == nil || len(userConf.Dns) == 0 {
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userConf.Dns = imageConf.Dns
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}
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}
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func (runtime *Runtime) Create(config *Config) (*Container, error) {
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// Lookup image
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img, err := runtime.repositories.LookupImage(config.Image)
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if err != nil {
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return nil, err
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}
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if img.Config != nil {
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runtime.mergeConfig(config, img.Config)
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}
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if config.Cmd == nil || len(config.Cmd) == 0 {
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return nil, fmt.Errorf("No command specified")
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}
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// Generate id
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id := GenerateId()
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// Generate default hostname
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// FIXME: the lxc template no longer needs to set a default hostname
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if config.Hostname == "" {
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config.Hostname = id[:12]
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}
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container := &Container{
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// FIXME: we should generate the ID here instead of receiving it as an argument
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Id: id,
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Created: time.Now(),
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Path: config.Cmd[0],
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Args: config.Cmd[1:], //FIXME: de-duplicate from config
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Config: config,
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Image: img.Id, // Always use the resolved image id
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NetworkSettings: &NetworkSettings{},
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// FIXME: do we need to store this in the container?
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SysInitPath: sysInitPath,
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}
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container.root = runtime.containerRoot(container.Id)
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// Step 1: create the container directory.
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// This doubles as a barrier to avoid race conditions.
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if err := os.Mkdir(container.root, 0700); err != nil {
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return nil, err
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}
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// If custom dns exists, then create a resolv.conf for the container
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if len(config.Dns) > 0 {
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container.ResolvConfPath = path.Join(container.root, "resolv.conf")
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f, err := os.Create(container.ResolvConfPath)
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if err != nil {
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return nil, err
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}
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defer f.Close()
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for _, dns := range config.Dns {
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if _, err := f.Write([]byte("nameserver " + dns + "\n")); err != nil {
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return nil, err
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}
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}
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} else {
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container.ResolvConfPath = "/etc/resolv.conf"
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}
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// Step 2: save the container json
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if err := container.ToDisk(); err != nil {
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return nil, err
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}
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// Step 3: register the container
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if err := runtime.Register(container); err != nil {
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return nil, err
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}
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return container, nil
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}
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======= end
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func (runtime *Runtime) Load(id string) (*Container, error) {
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func (runtime *Runtime) Load(id string) (*Container, error) {
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container := &Container{root: runtime.containerRoot(id)}
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container := &Container{root: runtime.containerRoot(id)}
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if err := container.FromDisk(); err != nil {
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if err := container.FromDisk(); err != nil {
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