create_start.go

package main

import (
	"encoding/json"
	"io"
	"log"
	"os"
	"os/exec"

	"github.com/docker/containerd/osutils"
	"github.com/opencontainers/runc/libcontainer"
)

func main() {
	osutils.SetSubreaper(1)
	c, err := libcontainer.NewConsole(1000, 1000)
	if err != nil {
		log.Fatal(err)
	}
	cmd := exec.Command("runc", "create", "--console", c.Path(), "test")
	go io.Copy(os.Stdout, c)
	go io.Copy(c, os.Stdin)
	if err := cmd.Run(); err != nil {
		log.Fatal(err)
	}
	var s struct {
		Pid int `json:"pid"`
	}
	out, err := exec.Command("runc", "state", "test").CombinedOutput()
	if err != nil {
		log.Fatal(err)
	}
	if err := json.Unmarshal(out, &s); err != nil {
		log.Fatal(err)
	}
	cmd = exec.Command("runc", "start", "test")
	if err := cmd.Run(); err != nil {
		log.Fatal(err)
	}
	p, err := os.FindProcess(s.Pid)
	if err != nil {
		log.Fatal(err)
	}
	p.Wait()
}