hosts转json

src/common/tools/hosts

+[webGroup1]
+192.168.0.11 ansible_ssh_host=192.168.0.11 ansible_ssh_user=root ansible_ssh_pass=123.com ansible_ssh_port=3333
+192.168.0.12 ansible_ssh_host=192.168.0.12 ansible_ssh_user=root ansible_ssh_pass=1234.com ansible_ssh_port=2222
+[webGroup2]
+192.168.1.11 ansible_ssh_host=192.168.1.11 ansible_ssh_user=admin ansible_ssh_pass=ccc.com ansible_ssh_port=11
+192.168.1.12 ansible_ssh_host=192.168.1.12 ansible_ssh_user=admin ansible_ssh_pass=111.com ansible_ssh_port=22
\ No newline at end of file

src/common/tools/hosts.go

+package tools
+
+import (
+	"bufio"
+	"log"
+	"os"
+	"strings"
+)
+
+func HostsToJson() (data map[string][]string, err error) {
+	f, err := os.Open(`/etc/ansible/hosts`)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		if err = f.Close(); err != nil {
+			log.Fatal(err)
+		}
+	}()
+	data = make(map[string][]string)
+	// 以这个文件为参数，创建一个 scanner
+	s := bufio.NewScanner(f)
+	var key string
+	var per []string
+	// 扫描每行文件，按行读取
+	for s.Scan() {
+		if strings.HasPrefix(s.Text(), "[") && strings.HasSuffix(s.Text(), "]") {
+			key = s.Text()
+			per = []string{}
+			data[key] = per
+		} else {
+			data[key] = append(data[key], s.Text())
+		}
+	}
+	err = s.Err()
+	if err != nil {
+		return nil, err
+	}
+	return data, nil
+}