一、安装模块

pip install pyyaml

二、host.yaml文件

k8s:
- role: node1
  ip: 192.168.1.2
  hostname: k8s-node1
- role: node2
  ip: 192.168.1.3
  hostname: k8s-node2
DB:
  ip: 192.168.1.10
  port: 3306

三、read_yaml.py

#!/bin/env python
# -*- coding:utf-8 -*-

import yaml
import os

script_path = os.path.dirname(os.path.realpath(__file__))       #脚本所在路径
yaml_path = os.path.join(script_path, "host.yaml")              #yaml文件路径

# open方法打开直接读出来
cfg = open(yaml_path, 'r').read()                       # 读出来是字符串
host_info = yaml.load(cfg,Loader=yaml.FullLoader)       # 用load方法转为字典
# print(host_info)
print("node1的IP地址:%s" % host_info.get('k8s')[0].get('ip'))              #获取node1的IP地址
print("DB的端口:%s" % host_info.get('DB').get('port'))

四、执行结果