func (b *Builder) commit(id string, autoCmd *runconfig.Command, comment string) error {
if b.disableCommit {
return nil
}
if b.image == "" && !b.noBaseImage {
return fmt.Errorf("Please provide a source image with `from` prior to commit")
}
b.Config.Image = b.image
if id == "" {
cmd := b.Config.Cmd
if runtime.GOOS != "windows" {
b.Config.Cmd = runconfig.NewCommand("/bin/sh", "-c", "#(nop) "+comment)
} else {
b.Config.Cmd = runconfig.NewCommand("cmd", "/S /C", "REM (nop) "+comment)
}
defer func(cmd *runconfig.Command) { b.Config.Cmd = cmd }(cmd)
hit, err := b.probeCache()
if err != nil {
return err
}
if hit {
return nil
}
container, err := b.create()
if err != nil {
return err
}
id = container.ID
}
container, err := b.Daemon.Get(id)
if err != nil {
return err
}
// Note: Actually copy the struct
autoConfig := *b.Config
autoConfig.Cmd = autoCmd
// Commit the container
image, err := b.Daemon.Commit(container, "", "", "", b.maintainer, true, &autoConfig)
if err != nil {
return err
}
b.image = image.ID
return nil
}
// CMD foo
//
// Set the default command to run in the container (which may be empty).
// Argument handling is the same as RUN.
//
func cmd(b *Builder, args []string, attributes map[string]bool, original string) error {
if err := b.BuilderFlags.Parse(); err != nil {
return err
}
cmdSlice := handleJsonArgs(args, attributes)
if !attributes["json"] {
if runtime.GOOS != "windows" {
cmdSlice = append([]string{"/bin/sh", "-c"}, cmdSlice...)
} else {
cmdSlice = append([]string{"cmd", "/S /C"}, cmdSlice...)
}
}
b.Config.Cmd = runconfig.NewCommand(cmdSlice...)
if err := b.commit("", b.Config.Cmd, fmt.Sprintf("CMD %q", cmdSlice)); err != nil {
return err
}
if len(args) != 0 {
b.cmdSet = true
}
return nil
}
func (b *Builder) create() (*daemon.Container, error) {
if b.image == "" && !b.noBaseImage {
return nil, fmt.Errorf("Please provide a source image with `from` prior to run")
}
b.Config.Image = b.image
config := *b.Config
// Create the Pod
podId := fmt.Sprintf("buildpod-%s", utils.RandStr(10, "alpha"))
podString, err := MakeBasicPod(podId, b.image, b.Config.Cmd.Slice())
if err != nil {
return nil, err
}
err = b.Hyperdaemon.CreatePod(podId, podString, false)
if err != nil {
return nil, err
}
// Get the container
var (
containerId = ""
c *daemon.Container
)
ps, ok := b.Hyperdaemon.PodList.GetStatus(podId)
if !ok {
return nil, fmt.Errorf("Cannot find pod %s", podId)
}
for _, i := range ps.Containers {
containerId = i.Id
}
c, err = b.Daemon.Get(containerId)
if err != nil {
glog.Error(err.Error())
return nil, err
}
b.TmpContainers[c.ID] = struct{}{}
b.TmpPods[podId] = struct{}{}
fmt.Fprintf(b.OutStream, " ---> Running in %s\n", stringid.TruncateID(c.ID))
if config.Cmd.Len() > 0 {
// override the entry point that may have been picked up from the base image
s := config.Cmd.Slice()
c.Path = s[0]
c.Args = s[1:]
} else {
config.Cmd = runconfig.NewCommand()
}
return c, nil
}
func (cli Docker) SendCmdCreate(name, image string, cmds []string, userConfig interface{}) ([]byte, int, error) {
config := runconfig.Config{
Image: image,
Cmd: runconfig.NewCommand(cmds...),
}
if userConfig != nil {
config = userConfig.(runconfig.Config)
}
hostConfig := &runconfig.HostConfig{}
containerId, _, err := cli.daemon.ContainerCreate(name, &config, hostConfig)
if err != nil {
return nil, 500, err
}
return []byte(containerId), 200, nil
}
func (b *Builder) runContextCommand(args []string, allowRemote bool, allowDecompression bool, cmdName string) error {
if b.context == nil {
return fmt.Errorf("No context given. Impossible to use %s", cmdName)
}
if len(args) < 2 {
return fmt.Errorf("Invalid %s format - at least two arguments required", cmdName)
}
dest := args[len(args)-1] // last one is always the dest
copyInfos := []*copyInfo{}
b.Config.Image = b.image
defer func() {
for _, ci := range copyInfos {
if ci.tmpDir != "" {
os.RemoveAll(ci.tmpDir)
}
}
}()
// Loop through each src file and calculate the info we need to
// do the copy (e.g. hash value if cached). Don't actually do
// the copy until we've looked at all src files
for _, orig := range args[0 : len(args)-1] {
if err := calcCopyInfo(
b,
cmdName,
©Infos,
orig,
dest,
allowRemote,
allowDecompression,
true,
); err != nil {
glog.Error(err.Error())
return err
}
}
if len(copyInfos) == 0 {
return fmt.Errorf("No source files were specified")
}
if len(copyInfos) > 1 && !strings.HasSuffix(dest, "/") {
return fmt.Errorf("When using %s with more than one source file, the destination must be a directory and end with a /", cmdName)
}
// For backwards compat, if there's just one CI then use it as the
// cache look-up string, otherwise hash 'em all into one
var srcHash string
var origPaths string
if len(copyInfos) == 1 {
srcHash = copyInfos[0].hash
origPaths = copyInfos[0].origPath
} else {
var hashs []string
var origs []string
for _, ci := range copyInfos {
hashs = append(hashs, ci.hash)
origs = append(origs, ci.origPath)
}
hasher := sha256.New()
hasher.Write([]byte(strings.Join(hashs, ",")))
srcHash = "multi:" + hex.EncodeToString(hasher.Sum(nil))
origPaths = strings.Join(origs, " ")
}
cmd := b.Config.Cmd
if runtime.GOOS != "windows" {
b.Config.Cmd = runconfig.NewCommand("/bin/sh", "-c", fmt.Sprintf("#(nop) %s %s in %s", cmdName, srcHash, dest))
} else {
b.Config.Cmd = runconfig.NewCommand("cmd", "/S /C", fmt.Sprintf("REM (nop) %s %s in %s", cmdName, srcHash, dest))
}
defer func(cmd *runconfig.Command) { b.Config.Cmd = cmd }(cmd)
hit, err := b.probeCache()
if err != nil {
return err
}
if hit {
return nil
}
b.Config.Image = b.image
// config := *b.Config
// Create the Pod
podId := fmt.Sprintf("buildpod-%s", utils.RandStr(10, "alpha"))
tempSrcDir := fmt.Sprintf("/var/run/hyper/temp/%s/", podId)
if err := os.MkdirAll(tempSrcDir, 0755); err != nil {
glog.Errorf(err.Error())
return err
}
if _, err := os.Stat(tempSrcDir); err != nil {
glog.Errorf(err.Error())
return err
}
shellDir := fmt.Sprintf("/var/run/hyper/shell/%s/", podId)
if err := os.MkdirAll(shellDir, 0755); err != nil {
glog.Errorf(err.Error())
return err
}
copyshell, err1 := os.Create(shellDir + "/exec-copy.sh")
if err1 != nil {
glog.Errorf(err1.Error())
return err1
}
fmt.Fprintf(copyshell, "#!/bin/sh\n")
podString, err := MakeCopyPod(podId, b.image, b.Config.WorkingDir, tempSrcDir, dest, shellDir)
if err != nil {
return err
}
err = b.Hyperdaemon.CreatePod(podId, podString, false)
if err != nil {
return err
}
// Get the container
var (
containerId = ""
container *daemon.Container
)
ps, ok := b.Hyperdaemon.PodList.GetStatus(podId)
if !ok {
return fmt.Errorf("Cannot find pod %s", podId)
}
for _, i := range ps.Containers {
containerId = i.Id
}
container, err = b.Daemon.Get(containerId)
if err != nil {
glog.Error(err.Error())
return err
}
b.TmpContainers[container.ID] = struct{}{}
b.TmpPods[podId] = struct{}{}
for _, ci := range copyInfos {
glog.V(1).Infof("container %s, origPath %s, destPath %s", container.ID, ci.origPath, ci.destPath)
// Copy the source files to tempSrcDir
if err := b.addContext(container, ci.origPath, tempSrcDir, ci.decompress); err != nil {
glog.Error(err.Error())
return err
}
if strings.HasSuffix(dest, "/") == true {
fmt.Fprintf(copyshell, fmt.Sprintf("cp /tmp/src/%s %s\n", ci.origPath, ci.destPath))
} else {
fmt.Fprintf(copyshell, fmt.Sprintf("cp /tmp/src/%s %s\n", ci.origPath, dest))
break
}
}
fmt.Fprintf(copyshell, "umount /tmp/src/\n")
fmt.Fprintf(copyshell, "umount /tmp/shell/\n")
fmt.Fprintf(copyshell, "rm -rf /tmp/shell/\n")
fmt.Fprintf(copyshell, "rm -rf /tmp/src/\n")
copyshell.Close()
// start or replace pod
vm, ok := b.Hyperdaemon.VmList[b.Name]
if !ok {
glog.Warningf("can not find VM(%s)", b.Name)
bo := &hypervisor.BootConfig{
CPU: 1,
Memory: 512,
Kernel: b.Hyperdaemon.Kernel,
Initrd: b.Hyperdaemon.Initrd,
Bios: b.Hyperdaemon.Bios,
Cbfs: b.Hyperdaemon.Cbfs,
Vbox: b.Hyperdaemon.VboxImage,
}
vm = b.Hyperdaemon.NewVm(b.Name, 1, 512, false, types.VM_KEEP_AFTER_FINISH)
err = vm.Launch(bo)
if err != nil {
return err
}
b.Hyperdaemon.AddVm(vm)
}
if vm.Status == types.S_VM_IDLE {
code, cause, err := b.Hyperdaemon.StartPod(podId, "", b.Name, nil, false, false, types.VM_KEEP_AFTER_FINISH, []*hypervisor.TtyIO{})
if err != nil {
glog.Errorf("Code is %d, Cause is %s, %s", code, cause, err.Error())
b.Hyperdaemon.KillVm(b.Name)
return err
}
vm = b.Hyperdaemon.VmList[b.Name]
// wait for cmd finish
Status, err := vm.GetResponseChan()
if err != nil {
glog.Error(err.Error())
return err
}
defer vm.ReleaseResponseChan(Status)
var vmResponse *types.VmResponse
for {
vmResponse = <-Status
if vmResponse.VmId == b.Name {
if vmResponse.Code == types.E_POD_FINISHED {
glog.Infof("Got E_POD_FINISHED code response")
break
}
}
}
pod, ok := b.Hyperdaemon.PodList.Get(podId)
if !ok {
return fmt.Errorf("Cannot find pod %s", podId)
}
pod.SetVM(b.Name, vm)
// release pod from VM
glog.Warningf("start stop pod")
code, cause, err = b.Hyperdaemon.StopPod(podId, "no")
if err != nil {
glog.Errorf("Code is %d, Cause is %s, %s", code, cause, err.Error())
b.Hyperdaemon.KillVm(b.Name)
return err
}
glog.Warningf("stop pod finish")
} else {
glog.Errorf("Vm is not IDLE")
return fmt.Errorf("Vm is not IDLE")
}
glog.Warningf("begin commit")
if err := b.commit(container.ID, cmd, fmt.Sprintf("%s %s in %s", cmdName, origPaths, dest)); err != nil {
return err
}
return nil
}
