Example #1
0
func nsenterAction(context *cli.Context) {
	args := context.Args()

	if len(args) == 0 {
		args = []string{"/bin/bash"}
	}

	container, err := loadContainerFromJson(context.String("containerjson"))
	if err != nil {
		log.Fatalf("unable to load container: %s", err)
	}

	nspid := context.Int("nspid")
	if nspid <= 0 {
		log.Fatalf("cannot enter into namespaces without valid pid: %q", nspid)
	}

	if err := namespaces.NsEnter(container, args); err != nil {
		log.Fatalf("failed to nsenter: %s", err)
	}
}
Example #2
0
func nsenterAction(context *cli.Context) {
	args := context.Args()
	if len(args) < 4 {
		log.Fatalf("incorrect usage: <pid> <process label> <container JSON> <cmd>...")
	}

	container, err := loadContainerFromJson(args.Get(2))
	if err != nil {
		log.Fatalf("unable to load container: %s", err)
	}

	nspid, err := strconv.Atoi(args.Get(0))
	if err != nil {
		log.Fatalf("unable to read pid: %s from %q", err, args.Get(0))
	}

	if nspid <= 0 {
		log.Fatalf("cannot enter into namespaces without valid pid: %q", nspid)
	}

	if err := namespaces.NsEnter(container, args.Get(1), nspid, args[3:]); err != nil {
		log.Fatalf("failed to nsenter: %s", err)
	}
}