Golang go_lxc_attach Examples

Example #1

File: container.go Project: rsampaio/go-lxc

// AttachShellWithClearEnvironment attaches a shell to the container.
// It clears all environment variables before attaching.
func (c *Container) AttachShellWithClearEnvironment() error {
	if err := c.makeSure(isDefined | isRunning); err != nil {
		return err
	}

	c.mu.Lock()
	defer c.mu.Unlock()

	if int(C.go_lxc_attach(c.container, true)) < 0 {
		return ErrAttachFailed
	}
	return nil
}

Example #2

File: container.go Project: zanella/nomad

// AttachShell attaches a shell to the container.
// It clears all environment variables before attaching.
func (c *Container) AttachShell(options AttachOptions) error {
	if err := c.makeSure(isRunning); err != nil {
		return err
	}

	c.mu.Lock()
	defer c.mu.Unlock()

	cenv := makeNullTerminatedArgs(options.Env)
	if cenv == nil {
		return ErrAllocationFailed
	}
	defer freeNullTerminatedArgs(cenv, len(options.Env))

	cenvToKeep := makeNullTerminatedArgs(options.EnvToKeep)
	if cenvToKeep == nil {
		return ErrAllocationFailed
	}
	defer freeNullTerminatedArgs(cenvToKeep, len(options.EnvToKeep))

	cwd := C.CString(options.Cwd)
	defer C.free(unsafe.Pointer(cwd))

	ret := int(C.go_lxc_attach(c.container,
		C.bool(options.ClearEnv),
		C.int(options.Namespaces),
		C.long(options.Arch),
		C.uid_t(options.UID),
		C.gid_t(options.GID),
		C.int(options.StdinFd),
		C.int(options.StdoutFd),
		C.int(options.StderrFd),
		cwd,
		cenv,
		cenvToKeep,
	))
	if ret < 0 {
		return ErrAttachFailed
	}
	return nil
}