go docker sdk 使用 第二章

go docker sdk 使用 第二章

本文以zookeeper镜像做示范

容器端口映射

package main

import (
	"context"
	"log"
	"os"
	"os/signal"
	"syscall"

	"github.com/docker/docker/api/types/container"
	"github.com/docker/docker/api/types/network"
	"github.com/docker/docker/client"
	"github.com/docker/go-connections/nat"
)

func main() {
	cli, err := client.NewClientWithOpts(client.WithVersion("1.41"))
	if err != nil {
		log.Fatalln(err)
	}
	portinfo, _ := nat.NewPort("tcp", "2181")//指明协议端口，也可以不用他给的函数，直接写 "2181/tcp" 端口号/协议
	resp, err := cli.ContainerCreate(context.Background(), &container.Config{
		Image: "zookeeper",
	}, &container.HostConfig{
		PortBindings: nat.PortMap{portinfo: []nat.PortBinding{nat.PortBinding{HostPort: "2182"}}},//映射到宿主机0.0.0.0:2182 区别于2181，这里方便演示时区别容器端口和映射端口
	}, &network.NetworkingConfig{}, nil, "zookeeper2")
	if err != nil {
		log.Fatalln(err)
	}
	err = cli.ContainerStart(context.Background(), resp.ID, container.StartOptions{})
	if err != nil {
		log.Fatalln(err)
	}
	ch := make(chan os.Signal, 1)
	signal.Notify(ch, syscall.SIGINT, syscall.SIGTERM)
	<-ch
	err2 := cli.ContainerStop(context.Background(), resp.ID, container.StopOptions{})
	if err2 != nil {
		log.Fatalln("stop error", err2)
	}
	cli.Close()

}

演示效果