func (d *driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (int, error) {
// take the Command and populate the libcontainer.Config from it
container, err := d.createContainer(c)
if err != nil {
return -1, err
}
d.Lock()
d.activeContainers[c.ID] = &activeContainer{
container: container,
cmd: &c.Cmd,
}
d.Unlock()
var (
dataPath = filepath.Join(d.root, c.ID)
args = append([]string{c.Entrypoint}, c.Arguments...)
)
if err := d.createContainerRoot(c.ID); err != nil {
return -1, err
}
defer d.removeContainerRoot(c.ID)
if err := d.writeContainerFile(container, c.ID); err != nil {
return -1, err
}
term := getTerminal(c, pipes)
return namespaces.Exec(container, term, c.Rootfs, dataPath, args, func(container *libcontainer.Config, console, rootfs, dataPath, init string, child *os.File, args []string) *exec.Cmd {
// we need to join the rootfs because namespaces will setup the rootfs and chroot
initPath := filepath.Join(c.Rootfs, c.InitPath)
c.Path = d.initPath
c.Args = append([]string{
initPath,
"-driver", DriverName,
"-console", console,
"-pipe", "3",
"-root", filepath.Join(d.root, c.ID),
"--",
}, args...)
// set this to nil so that when we set the clone flags anything else is reset
c.SysProcAttr = nil
system.SetCloneFlags(&c.Cmd, uintptr(namespaces.GetNamespaceFlags(container.Namespaces)))
c.ExtraFiles = []*os.File{child}
c.Env = container.Env
c.Dir = c.Rootfs
return &c.Cmd
}, func() {
if startCallback != nil {
c.ContainerPid = c.Process.Pid
startCallback(c)
}
})
}
func (d *driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (int, error) {
// take the Command and populate the libcontainer.Config from it
container, err := d.createContainer(c)
if err != nil {
return -1, err
}
var term execdriver.Terminal
if c.ProcessConfig.Tty {
term, err = NewTtyConsole(&c.ProcessConfig, pipes)
} else {
term, err = execdriver.NewStdConsole(&c.ProcessConfig, pipes)
}
if err != nil {
return -1, err
}
c.ProcessConfig.Terminal = term
d.Lock()
d.activeContainers[c.ID] = &activeContainer{
container: container,
cmd: &c.ProcessConfig.Cmd,
}
d.Unlock()
var (
dataPath = filepath.Join(d.root, c.ID)
args = append([]string{c.ProcessConfig.Entrypoint}, c.ProcessConfig.Arguments...)
)
if err := d.createContainerRoot(c.ID); err != nil {
return -1, err
}
defer d.removeContainerRoot(c.ID)
if err := d.writeContainerFile(container, c.ID); err != nil {
return -1, err
}
return namespaces.Exec(container, c.ProcessConfig.Stdin, c.ProcessConfig.Stdout, c.ProcessConfig.Stderr, c.ProcessConfig.Console, c.Rootfs, dataPath, args, func(container *libcontainer.Config, console, rootfs, dataPath, init string, child *os.File, args []string) *exec.Cmd {
c.ProcessConfig.Path = d.initPath
c.ProcessConfig.Args = append([]string{
DriverName,
"-console", console,
"-pipe", "3",
"-root", filepath.Join(d.root, c.ID),
"--",
}, args...)
// set this to nil so that when we set the clone flags anything else is reset
c.ProcessConfig.SysProcAttr = &syscall.SysProcAttr{
Cloneflags: uintptr(namespaces.GetNamespaceFlags(container.Namespaces)),
}
c.ProcessConfig.ExtraFiles = []*os.File{child}
c.ProcessConfig.Env = container.Env
c.ProcessConfig.Dir = c.Rootfs
return &c.ProcessConfig.Cmd
}, func() {
if startCallback != nil {
c.ContainerPid = c.ProcessConfig.Process.Pid
startCallback(&c.ProcessConfig, c.ContainerPid)
}
})
}
func (d *driver) Run(c *execdriver.Command, pipes *execdriver.Pipes, startCallback execdriver.StartCallback) (execdriver.ExitStatus, error) {
// take the Command and populate the libcontainer.Config from it
container, err := d.createContainer(c)
if err != nil {
return execdriver.ExitStatus{ExitCode: -1}, err
}
var term execdriver.Terminal
if c.ProcessConfig.Tty {
term, err = NewTtyConsole(&c.ProcessConfig, pipes)
} else {
term, err = execdriver.NewStdConsole(&c.ProcessConfig, pipes)
}
if err != nil {
return execdriver.ExitStatus{ExitCode: -1}, err
}
c.ProcessConfig.Terminal = term
d.Lock()
d.activeContainers[c.ID] = &activeContainer{
container: container,
cmd: &c.ProcessConfig.Cmd,
}
d.Unlock()
var (
dataPath = filepath.Join(d.root, c.ID)
args = append([]string{c.ProcessConfig.Entrypoint}, c.ProcessConfig.Arguments...)
)
if err := d.createContainerRoot(c.ID); err != nil {
return execdriver.ExitStatus{ExitCode: -1}, err
}
defer d.cleanContainer(c.ID)
if err := d.writeContainerFile(container, c.ID); err != nil {
return execdriver.ExitStatus{ExitCode: -1}, err
}
execOutputChan := make(chan execOutput, 1)
waitForStart := make(chan struct{})
go func() {
exitCode, err := namespaces.Exec(container, c.ProcessConfig.Stdin, c.ProcessConfig.Stdout, c.ProcessConfig.Stderr, c.ProcessConfig.Console, dataPath, args, func(container *libcontainer.Config, console, dataPath, init string, child *os.File, args []string) *exec.Cmd {
c.ProcessConfig.Path = d.initPath
c.ProcessConfig.Args = append([]string{
DriverName,
"-console", console,
"-pipe", "3",
"-root", filepath.Join(d.root, c.ID),
"--",
}, args...)
// set this to nil so that when we set the clone flags anything else is reset
c.ProcessConfig.SysProcAttr = &syscall.SysProcAttr{
Cloneflags: uintptr(namespaces.GetNamespaceFlags(container.Namespaces)),
}
c.ProcessConfig.ExtraFiles = []*os.File{child}
c.ProcessConfig.Env = container.Env
c.ProcessConfig.Dir = container.RootFs
return &c.ProcessConfig.Cmd
}, func() {
close(waitForStart)
if startCallback != nil {
c.ContainerPid = c.ProcessConfig.Process.Pid
startCallback(&c.ProcessConfig, c.ContainerPid)
}
})
execOutputChan <- execOutput{exitCode, err}
}()
select {
case execOutput := <-execOutputChan:
return execdriver.ExitStatus{ExitCode: execOutput.exitCode}, execOutput.err
case <-waitForStart:
break
}
oomKill := false
state, err := libcontainer.GetState(filepath.Join(d.root, c.ID))
if err == nil {
oomKillNotification, err := libcontainer.NotifyOnOOM(state)
if err == nil {
_, oomKill = <-oomKillNotification
} else {
log.Warnf("WARNING: Your kernel does not support OOM notifications: %s", err)
}
} else {
log.Warnf("Failed to get container state, oom notify will not work: %s", err)
}
// wait for the container to exit.
execOutput := <-execOutputChan
return execdriver.ExitStatus{ExitCode: execOutput.exitCode, OOMKilled: oomKill}, execOutput.err
}
