开发语言 golang
使用 unix domain socket 和 docker 守护进程交互，查询 镜像列表
package main
import (
"fmt"
"net"
"io/ioutil"
"encoding/json"
)
type Image struct {
Created uint64
Id string
ParentId string
RepoTags []string
Size uint64
VirtualSize uint64
}
func main() {
addr := net.UnixAddr{"/var/run/docker.sock", "unix"}
conn, err := net.DialUnix("unix", nil, &addr)
if err != nil {
panic(err)
}
_, err = conn.Write([]byte("GET /images/json HTTP/1.0\r\n\r\n"))
if err != nil {
panic(err)
}
result, err_conn := ioutil.ReadAll(conn)
if err_conn != nil {
panic(err_conn)
}
body := getBody(result[:])
var images []Image
err_js := json.Unmarshal(body, &images)
if err_js != nil {
panic(err_js)
}
fmt.Println("len of images: ", len(images))
fmt.Println("image.Id: ", images[0].Id)
}
func getBody(result []byte) (body []byte) {
for i := 0; i <= len(result) - 4; i++ {
if result[i] == 13 && result[i+1] == 10 && result[i+2] == 13 && result[i+3] == 10 {
body = result[i+4:]
break
}
}
return
}
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