// Commit will create a new image from a container's changes
func Commit(name string, d *daemon.Daemon, c *CommitConfig) (string, error) {
container, err := d.Get(name)
if err != nil {
return "", err
}
if c.Config == nil {
c.Config = &runconfig.Config{}
}
newConfig, err := BuildFromConfig(d, c.Config, c.Changes)
if err != nil {
return "", err
}
if err := runconfig.Merge(newConfig, container.Config); err != nil {
return "", err
}
commitCfg := &daemon.ContainerCommitConfig{
Pause: c.Pause,
Repo: c.Repo,
Tag: c.Tag,
Author: c.Author,
Comment: c.Comment,
Config: newConfig,
}
img, err := d.Commit(container, commitCfg)
if err != nil {
return "", err
}
return img.ID, nil
}
// Commit will create a new image from a container's changes
// TODO: remove daemon, make Commit a method on *Builder ?
func Commit(container *daemon.Container, d *daemon.Daemon, c *CommitConfig) (string, error) {
// It is not possible to commit a running container on Windows
if runtime.GOOS == "windows" && container.IsRunning() {
return "", fmt.Errorf("Windows does not support commit of a running container")
}
if c.Config == nil {
c.Config = &runconfig.Config{}
}
newConfig, err := BuildFromConfig(c.Config, c.Changes)
if err != nil {
return "", err
}
if err := runconfig.Merge(newConfig, container.Config); err != nil {
return "", err
}
commitCfg := &daemon.ContainerCommitConfig{
Pause: c.Pause,
Repo: c.Repo,
Tag: c.Tag,
Author: c.Author,
Comment: c.Comment,
Config: newConfig,
}
img, err := d.Commit(container, commitCfg)
if err != nil {
return "", err
}
return img.ID, nil
}
// Create a test container from the given daemon `r` and run arguments `args`.
// If the image name is "_", (eg. []string{"-i", "-t", "_", "bash"}, it is
// dynamically replaced by the current test image.
// The caller is responsible for destroying the container.
// Call t.Fatal() at the first error.
func mkContainer(r *daemon.Daemon, args []string, t *testing.T) (*daemon.Container, *runconfig.HostConfig, error) {
config, hc, _, err := parseRun(args, nil)
defer func() {
if err != nil && t != nil {
t.Fatal(err)
}
}()
if err != nil {
return nil, nil, err
}
if config.Image == "_" {
config.Image = GetTestImage(r).ID
}
c, _, err := r.Create(config, "")
if err != nil {
return nil, nil, err
}
// NOTE: hostConfig is ignored.
// If `args` specify privileged mode, custom lxc conf, external mount binds,
// port redirects etc. they will be ignored.
// This is because the correct way to set these things is to pass environment
// to the `start` job.
// FIXME: this helper function should be deprecated in favor of calling
// `create` and `start` jobs directly.
return c, hc, nil
}
// Create a test container, start it, wait for it to complete, destroy it,
// and return its standard output as a string.
// The image name (eg. the XXX in []string{"-i", "-t", "XXX", "bash"}, is dynamically replaced by the current test image.
// If t is not nil, call t.Fatal() at the first error. Otherwise return errors normally.
func runContainer(eng *engine.Engine, r *daemon.Daemon, args []string, t *testing.T) (output string, err error) {
defer func() {
if err != nil && t != nil {
t.Fatal(err)
}
}()
container, hc, err := mkContainer(r, args, t)
if err != nil {
return "", err
}
defer r.Destroy(container)
stdout, err := container.StdoutPipe()
if err != nil {
return "", err
}
defer stdout.Close()
job := eng.Job("start", container.ID)
if err := job.ImportEnv(hc); err != nil {
return "", err
}
if err := job.Run(); err != nil {
return "", err
}
container.WaitStop(-1 * time.Second)
data, err := ioutil.ReadAll(stdout)
if err != nil {
return "", err
}
output = string(data)
return
}
// Commit will create a new image from a container's changes
// TODO: remove daemon, make Commit a method on *Builder ?
func Commit(containerName string, d *daemon.Daemon, c *CommitConfig) (string, error) {
if c.Config == nil {
c.Config = &runconfig.Config{}
}
newConfig, err := BuildFromConfig(c.Config, c.Changes)
if err != nil {
return "", err
}
commitCfg := &daemon.ContainerCommitConfig{
Pause: c.Pause,
Repo: c.Repo,
Tag: c.Tag,
Author: c.Author,
Comment: c.Comment,
Config: newConfig,
MergeConfigs: true,
}
imgID, err := d.Commit(containerName, commitCfg)
if err != nil {
return "", err
}
return imgID, nil
}
func initRouter(s *apiserver.Server, d *daemon.Daemon, c *cluster.Cluster) {
decoder := runconfig.ContainerDecoder{}
routers := []router.Router{
// we need to add the checkpoint router before the container router or the DELETE gets masked
checkpointrouter.NewRouter(d, decoder),
container.NewRouter(d, decoder),
image.NewRouter(d, decoder),
systemrouter.NewRouter(d, c),
volume.NewRouter(d),
build.NewRouter(dockerfile.NewBuildManager(d)),
swarmrouter.NewRouter(c),
pluginrouter.NewRouter(plugin.GetManager()),
}
if d.NetworkControllerEnabled() {
routers = append(routers, network.NewRouter(d, c))
}
if d.HasExperimental() {
for _, r := range routers {
for _, route := range r.Routes() {
if experimental, ok := route.(router.ExperimentalRoute); ok {
experimental.Enable()
}
}
}
}
s.InitRouter(debug.IsEnabled(), routers...)
}
func Commit(d *daemon.Daemon, name string, c *daemon.ContainerCommitConfig) (string, error) {
container, err := d.Get(name)
if err != nil {
return "", err
}
if c.Config == nil {
c.Config = &runconfig.Config{}
}
newConfig, err := BuildFromConfig(d, c.Config, c.Changes)
if err != nil {
return "", err
}
if err := runconfig.Merge(newConfig, container.Config); err != nil {
return "", err
}
img, err := d.Commit(container, c.Repo, c.Tag, c.Comment, c.Author, c.Pause, newConfig)
if err != nil {
return "", err
}
return img.ID, nil
}
// NewRouter initializes a new build router
func NewRouter(d *daemon.Daemon, b Backend) router.Router {
r := &swarmRouter{
backend: b,
}
r.initRoutes()
if d.HasExperimental() {
r.addExperimentalRoutes()
}
return r
}
// shutdownDaemon just wraps daemon.Shutdown() to handle a timeout in case
// d.Shutdown() is waiting too long to kill container or worst it's
// blocked there
func shutdownDaemon(d *daemon.Daemon, timeout time.Duration) {
ch := make(chan struct{})
go func() {
d.Shutdown()
close(ch)
}()
select {
case <-ch:
logrus.Debug("Clean shutdown succeded")
case <-time.After(timeout * time.Second):
logrus.Error("Force shutdown daemon")
}
}
func GetTestImage(daemon *daemon.Daemon) *image.Image {
imgs, err := daemon.Graph().Map()
if err != nil {
log.Fatalf("Unable to get the test image: %s", err)
}
for _, image := range imgs {
if image.ID == unitTestImageID {
return image
}
}
log.Fatalf("Test image %v not found in %s: %s", unitTestImageID, daemon.Graph().Root, imgs)
return nil
}
func initRouter(s *apiserver.Server, d *daemon.Daemon) {
routers := []router.Router{
container.NewRouter(d),
image.NewRouter(d),
systemrouter.NewRouter(d),
volume.NewRouter(d),
build.NewRouter(dockerfile.NewBuildManager(d)),
}
if d.NetworkControllerEnabled() {
routers = append(routers, network.NewRouter(d))
}
s.InitRouter(utils.IsDebugEnabled(), routers...)
}
func initRouter(s *apiserver.Server, d *daemon.Daemon) {
decoder := runconfig.ContainerDecoder{}
routers := []router.Router{
container.NewRouter(d, decoder),
image.NewRouter(d, decoder),
systemrouter.NewRouter(d),
volume.NewRouter(d),
build.NewRouter(d),
}
if d.NetworkControllerEnabled() {
routers = append(routers, network.NewRouter(d))
}
s.InitRouter(utils.IsDebugEnabled(), routers...)
}
func initRouter(s *apiserver.Server, d *daemon.Daemon, c *cluster.Cluster) {
decoder := runconfig.ContainerDecoder{}
routers := []router.Router{
container.NewRouter(d, decoder),
image.NewRouter(d, decoder),
systemrouter.NewRouter(d, c),
volume.NewRouter(d),
build.NewRouter(dockerfile.NewBuildManager(d)),
swarmrouter.NewRouter(c),
}
if d.NetworkControllerEnabled() {
routers = append(routers, network.NewRouter(d, c))
}
routers = addExperimentalRouters(routers)
s.InitRouter(utils.IsDebugEnabled(), routers...)
}
// shutdownDaemon just wraps daemon.Shutdown() to handle a timeout in case
// d.Shutdown() is waiting too long to kill container or worst it's
// blocked there
func shutdownDaemon(d *daemon.Daemon) {
shutdownTimeout := d.ShutdownTimeout()
ch := make(chan struct{})
go func() {
d.Shutdown()
close(ch)
}()
if shutdownTimeout < 0 {
<-ch
logrus.Debug("Clean shutdown succeeded")
return
}
select {
case <-ch:
logrus.Debug("Clean shutdown succeeded")
case <-time.After(time.Duration(shutdownTimeout) * time.Second):
logrus.Error("Force shutdown daemon")
}
}
// NewRouter initializes a new network router
func NewRouter(d *daemon.Daemon) router.Router {
c := d.NetworkController()
if c == nil {
return networkRouter{}
}
var routes []router.Route
netHandler := api.NewHTTPHandler(c)
// TODO: libnetwork should stop hijacking request/response.
// It should define API functions to add normally to the router.
handler := func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
netHandler(w, r)
return nil
}
for _, path := range []string{"/networks", "/services", "/sandboxes"} {
routes = append(routes, networkRoute{path, handler})
}
return networkRouter{routes}
}
func initRouter(s *apiserver.Server, d *daemon.Daemon, c *cluster.Cluster) {
decoder := runconfig.ContainerDecoder{}
routers := []router.Router{}
// we need to add the checkpoint router before the container router or the DELETE gets masked
routers = addExperimentalRouters(routers, d, decoder)
routers = append(routers, []router.Router{
container.NewRouter(d, decoder),
image.NewRouter(d, decoder),
systemrouter.NewRouter(d, c),
volume.NewRouter(d),
build.NewRouter(dockerfile.NewBuildManager(d)),
swarmrouter.NewRouter(c),
}...)
if d.NetworkControllerEnabled() {
routers = append(routers, network.NewRouter(d, c))
}
s.InitRouter(utils.IsDebugEnabled(), routers...)
}
func addExperimentalRouters(routers []router.Router, d *daemon.Daemon, decoder httputils.ContainerDecoder) []router.Router {
if !d.HasExperimental() {
return []router.Router{}
}
return append(routers, checkpointrouter.NewRouter(d, decoder))
}
func Build(d *daemon.Daemon, buildConfig *Config) error {
var (
repoName string
tag string
context io.ReadCloser
)
repoName, tag = parsers.ParseRepositoryTag(buildConfig.RepoName)
if repoName != "" {
if err := registry.ValidateRepositoryName(repoName); err != nil {
return err
}
if len(tag) > 0 {
if err := tags.ValidateTagName(tag); err != nil {
return err
}
}
}
if buildConfig.RemoteURL == "" {
context = ioutil.NopCloser(buildConfig.Context)
} else if urlutil.IsGitURL(buildConfig.RemoteURL) {
root, err := utils.GitClone(buildConfig.RemoteURL)
if err != nil {
return err
}
defer os.RemoveAll(root)
c, err := archive.Tar(root, archive.Uncompressed)
if err != nil {
return err
}
context = c
} else if urlutil.IsURL(buildConfig.RemoteURL) {
f, err := httputils.Download(buildConfig.RemoteURL)
if err != nil {
return err
}
defer f.Body.Close()
dockerFile, err := ioutil.ReadAll(f.Body)
if err != nil {
return err
}
// When we're downloading just a Dockerfile put it in
// the default name - don't allow the client to move/specify it
buildConfig.DockerfileName = api.DefaultDockerfileName
c, err := archive.Generate(buildConfig.DockerfileName, string(dockerFile))
if err != nil {
return err
}
context = c
}
defer context.Close()
sf := streamformatter.NewJSONStreamFormatter()
builder := &Builder{
Daemon: d,
OutStream: &streamformatter.StdoutFormater{
Writer: buildConfig.Stdout,
StreamFormatter: sf,
},
ErrStream: &streamformatter.StderrFormater{
Writer: buildConfig.Stdout,
StreamFormatter: sf,
},
Verbose: !buildConfig.SuppressOutput,
UtilizeCache: !buildConfig.NoCache,
Remove: buildConfig.Remove,
ForceRemove: buildConfig.ForceRemove,
Pull: buildConfig.Pull,
OutOld: buildConfig.Stdout,
StreamFormatter: sf,
AuthConfig: buildConfig.AuthConfig,
ConfigFile: buildConfig.ConfigFile,
dockerfileName: buildConfig.DockerfileName,
cpuShares: buildConfig.CpuShares,
cpuPeriod: buildConfig.CpuPeriod,
cpuQuota: buildConfig.CpuQuota,
cpuSetCpus: buildConfig.CpuSetCpus,
cpuSetMems: buildConfig.CpuSetMems,
cgroupParent: buildConfig.CgroupParent,
memory: buildConfig.Memory,
memorySwap: buildConfig.MemorySwap,
cancelled: buildConfig.WaitCancelled(),
}
id, err := builder.Run(context)
if err != nil {
return err
}
if repoName != "" {
return d.Repositories().Tag(repoName, tag, id, true)
}
return nil
}
// FIXME: nuke() is deprecated by Daemon.Nuke()
func nuke(daemon *daemon.Daemon) error {
return daemon.Nuke()
}
// Build is the main interface of the package, it gathers the Builder
// struct and calls builder.Run() to do all the real build job.
func Build(d *daemon.Daemon, buildConfig *Config) error {
var (
repoName string
tag string
context io.ReadCloser
)
sf := streamformatter.NewJSONStreamFormatter()
repoName, tag = parsers.ParseRepositoryTag(buildConfig.RepoName)
if repoName != "" {
if err := registry.ValidateRepositoryName(repoName); err != nil {
return err
}
if len(tag) > 0 {
if err := tags.ValidateTagName(tag); err != nil {
return err
}
}
}
if buildConfig.RemoteURL == "" {
context = ioutil.NopCloser(buildConfig.Context)
} else if urlutil.IsGitURL(buildConfig.RemoteURL) {
root, err := utils.GitClone(buildConfig.RemoteURL)
if err != nil {
return err
}
defer os.RemoveAll(root)
c, err := archive.Tar(root, archive.Uncompressed)
if err != nil {
return err
}
context = c
} else if urlutil.IsURL(buildConfig.RemoteURL) {
f, err := httputils.Download(buildConfig.RemoteURL)
if err != nil {
return fmt.Errorf("Error downloading remote context %s: %v", buildConfig.RemoteURL, err)
}
defer f.Body.Close()
ct := f.Header.Get("Content-Type")
clen := int(f.ContentLength)
contentType, bodyReader, err := inspectResponse(ct, f.Body, clen)
defer bodyReader.Close()
if err != nil {
return fmt.Errorf("Error detecting content type for remote %s: %v", buildConfig.RemoteURL, err)
}
if contentType == httputils.MimeTypes.TextPlain {
dockerFile, err := ioutil.ReadAll(bodyReader)
if err != nil {
return err
}
// When we're downloading just a Dockerfile put it in
// the default name - don't allow the client to move/specify it
buildConfig.DockerfileName = api.DefaultDockerfileName
c, err := archive.Generate(buildConfig.DockerfileName, string(dockerFile))
if err != nil {
return err
}
context = c
} else {
// Pass through - this is a pre-packaged context, presumably
// with a Dockerfile with the right name inside it.
prCfg := progressreader.Config{
In: bodyReader,
Out: buildConfig.Stdout,
Formatter: sf,
Size: clen,
NewLines: true,
ID: "Downloading context",
Action: buildConfig.RemoteURL,
}
context = progressreader.New(prCfg)
}
}
defer context.Close()
builder := &builder{
Daemon: d,
OutStream: &streamformatter.StdoutFormater{
Writer: buildConfig.Stdout,
StreamFormatter: sf,
},
ErrStream: &streamformatter.StderrFormater{
Writer: buildConfig.Stdout,
StreamFormatter: sf,
},
Verbose: !buildConfig.SuppressOutput,
UtilizeCache: !buildConfig.NoCache,
Remove: buildConfig.Remove,
ForceRemove: buildConfig.ForceRemove,
Pull: buildConfig.Pull,
OutOld: buildConfig.Stdout,
StreamFormatter: sf,
AuthConfigs: buildConfig.AuthConfigs,
dockerfileName: buildConfig.DockerfileName,
cpuShares: buildConfig.CPUShares,
cpuPeriod: buildConfig.CPUPeriod,
cpuQuota: buildConfig.CPUQuota,
cpuSetCpus: buildConfig.CPUSetCpus,
cpuSetMems: buildConfig.CPUSetMems,
cgroupParent: buildConfig.CgroupParent,
memory: buildConfig.Memory,
memorySwap: buildConfig.MemorySwap,
cancelled: buildConfig.WaitCancelled(),
id: stringid.GenerateRandomID(),
}
defer func() {
builder.Daemon.Graph().Release(builder.id, builder.activeImages...)
}()
id, err := builder.Run(context)
if err != nil {
return err
}
if repoName != "" {
return d.Repositories().Tag(repoName, tag, id, true)
}
return nil
}
