02:saltstack-api使用详解
1.1 salt-api安装
参考博客:https://www.jianshu.com/p/012ccdff93cc
1、介绍
1. saltsatck本身就提供了一套算完整的api,使用 CherryPy 来实现 restful 的 api,供外部的程序调用。
2. salt-api需要安装,然后进行一些配置才可以正常使用
2、安装salt-api,并设置开机启动
yum -y install salt-api pyOpenSSL
systemctl enable salt-api
3、配置自签名证书
cd /etc/pki/tls/certs/
make testcert
Enter pass phrase: ===> 输入加密短语,这里我使用salt2017
Verifying - Enter pass phrase: ===> 确认加密短语
umask 77 ; \
/usr/bin/openssl req -utf8 -new -key /etc/pki/tls/private/localhost.key -x509 -days 365 -out /etc/pki/tls/certs/localhost.crt -set_serial 0
Enter pass phrase for /etc/pki/tls/private/localhost.key: ===> 再次输入相同的加密短语
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [XX]:CN
State or Province Name (full name) []:BeiJing
Locality Name (eg, city) [Default City]:BeiJing
Organization Name (eg, company) [Default Company Ltd]:
Organizational Unit Name (eg, section) []:
Common Name (eg, your name or your server's hostname) []:
Email Address []:
交互模式输入密码等
4、解密key文件,生成无密码的key文件
注:过程中需要输入key密码,该密码为之前生成证书时设置的密码
cd /etc/pki/tls/private/
openssl rsa -in localhost.key -out localhost_nopass.key
5、修改文件权限
chmod 755 /etc/pki/tls/certs/localhost.crt
chmod 755 /etc/pki/tls/private/localhost.key
chmod 755 /etc/pki/tls/private/localhost_nopass.key
6、添加用户
注:生产环境请使用密码复杂度高的密码,这里我使用 chnsys@2016
useradd -M -s /sbin/nologin saltapi # 创建用户 saltapi
passwd saltapi # 为用户saltapi设置密码
7、配置salt-api
sed -i '/#default_include/s/#default/default/g' /etc/salt/master
8、创建/etc/salt/master.d/目录
mkdir -p /etc/salt/master.d/
cd /etc/salt/master.d/
touch eauth.conf
touch api.conf
external_auth:
pam:
saltapi: # 用户
- .* # 该配置文件给予saltapi用户所有模块使用权限,出于安全考虑一般只给予特定模块使用权限
eauth.conf
rest_cherrypy:
port: 8001
ssl_crt: /etc/pki/tls/certs/localhost.crt
ssl_key: /etc/pki/tls/private/localhost_nopass.key
api.conf
9、启动salt-api
systemctl restart salt-master
systemctl start salt-api
ps -ef|grep salt-api
netstat -lnput|grep 8001
10、测试获取token
curl -k https://192.168.56.11:8001/login -H "Accept: application/x-yaml" -d username='saltapi' -d password='chnsys@2016' -d eauth='pam'
11、调用test.ping
curl -k https://192.168.56.11:8001/ -H "Accept: application/x-yaml" -H "X-Auth-Token: 87cbb68e0babf3d0ad6b3741795667dbe62b3c11" -d client='local' -d tgt='*' -d fun='test.ping'
1.2 编写python脚本请求salt api接口
1、使用python简单测试接口执行命令
#!/usr/bin/env python
# _*_ coding:utf-8 _*_
__author__ = 'junxi' import requests
import json
try:
import cookielib
except:
import http.cookiejar as cookielib # 使用urllib2请求https出错,做的设置
import ssl
context = ssl._create_unverified_context() # 使用requests请求https出现警告,做的设置
from requests.packages.urllib3.exceptions import InsecureRequestWarning
requests.packages.urllib3.disable_warnings(InsecureRequestWarning) salt_api = "https://192.168.56.11:8001/" class SaltApi:
"""
定义salt api接口的类
初始化获得token
"""
def __init__(self, url):
self.url = url
self.username = "saltapi"
self.password = "chnsys@2016"
self.headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36",
"Content-type": "application/json"
}
self.params = {'client': 'local', 'fun': '', 'tgt': ''}
self.login_url = salt_api + "login"
self.login_params = {'username': self.username, 'password': self.password, 'eauth': 'pam'}
self.token = self.get_data(self.login_url, self.login_params)['token']
self.headers['X-Auth-Token'] = self.token def get_data(self, url, params):
send_data = json.dumps(params)
request = requests.post(url, data=send_data, headers=self.headers, verify=False)
response = request.json()
result = dict(response)
return result['return'][0] def salt_command(self, tgt, method, arg=None):
"""远程执行命令,相当于salt 'client1' cmd.run 'free -m'"""
if arg:
params = {'client': 'local', 'fun': method, 'tgt': tgt, 'arg': arg}
else:
params = {'client': 'local', 'fun': method, 'tgt': tgt}
print '命令参数: ', params
result = self.get_data(self.url, params)
return result def main():
salt = SaltApi(salt_api)
salt_client = '*'
salt_test = 'test.ping'
result1 = salt.salt_command(salt_client, salt_test)
print result1
# 返回结果:{u'linux-node1.example.com': True, u'linux-node2.example.com': True} if __name__ == '__main__':
main()
使用python简单测试接口执行命令
2、使用requests模块获取基本信息
#! /usr/bin/env python
# -*- coding: utf-8 -*-
import requests
import json
import logging
logging.captureWarnings(True) # 屏蔽由于访问https时没有证书警告问题 SALT_BASE_URL = 'https://192.168.56.11:8001/'
SALT_USER = 'saltapi'
SALT_PWD = 'chnsys@2016' class SaltAPI(object):
__token_id = '' def __init__(self):
self.__url = SALT_BASE_URL
self.__user = SALT_USER
self.__password = SALT_PWD def token_id(self):
"""
用户登陆和获取token
:return:
"""
params = {'eauth': 'pam', 'username': self.__user, 'password': self.__password}
content = self.postRequest(self.__url + '/login', data=params)
try:
self.__token_id = content[0]['token']
except Exception as e:
print '**** Failed to get token, {} ****'.format(str(e)) def postRequest(self, url, data=None):
headers = {"X-Auth-Token": self.__token_id}
ret = requests.post(url=url, data=data, json='json', headers=headers, verify=False)
if ret.status_code == 200:
return ret.json()['return']
return ret.text def remote_execution_module(self, tgt, fun, arg):
"""
远程执行模块,有参数
:param tgt: minion list
:param fun: 模块
:param arg: 参数
:return: dict, {'minion1': 'ret', 'minion2': 'ret'}
"""
params = {'client': 'local', 'tgt': tgt, 'fun': fun, 'arg': arg}
self.token_id()
return self.postRequest(self.__url, params) def salt_alive(self, tgt):
'''
salt主机存活检测
'''
params = {'client': 'local', 'tgt': tgt, 'fun': 'test.ping'}
self.token_id()
return self.postRequest(self.__url, params) if __name__ == '__main__':
salt = SaltAPI()
minions_list = [
'cloud:type',
'cluster:domain',
'cluster:name',
'cpu_model',
'fqdn_ip4',
'hospital:type',
'kernelrelease',
'nodename',
'os',
'osmajorrelease',
'osrelease',
'saltversion',
'serialnumber',
'virtual',
'num_cpus',
'mem_total',
'cloud:region',
'ipv4',
]
ret = salt.remote_execution_module('*', 'grains.item', minions_list)
print json.dumps(ret, ensure_ascii=False) '''
[{
"linux-node1.example.com": {
"osrelease": "7.6.1810",
"fqdn_ip4": ["192.168.56.11"],
"serialnumber": "VMware-56 4d 26 83 60 7c bb 5a-14 17 6a ab c2 45 f2 7a",
"nodename": "linux-node1.example.com",
"kernelrelease": "3.10.0-957.1.3.el7.x86_64",
"cloud:type": "",
"num_cpus": 1,
"saltversion": "2018.3.3",
"cpu_model": "Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz",
"virtual": "VMware",
"cluster:domain": "",
"cluster:name": "",
"osmajorrelease": 7,
"hospital:type": "",
"cloud:region": "",
"os": "CentOS",
"ipv4": ["127.0.0.1", "192.168.56.11"],
"mem_total": 1819
},
"linux-node2.example.com": {
"osrelease": "7.6.1810",
"fqdn_ip4": ["192.168.56.12"],
"serialnumber": "VMware-56 4d 09 af 9d 33 70 99-e9 7b 6d b2 5a 3b 7f 22",
"nodename": "linux-node2.example.com",
"kernelrelease": "3.10.0-957.1.3.el7.x86_64",
"cloud:type": "",
"num_cpus": 1,
"saltversion": "2018.3.3",
"cpu_model": "Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz",
"virtual": "VMware",
"cluster:domain": "",
"cluster:name": "",
"osmajorrelease": 7,
"hospital:type": "",
"cloud:region": "",
"os": "CentOS",
"ipv4": ["127.0.0.1", "192.168.56.12"],
"mem_total": 1819
}
}]
'''
使用requests模块获取基本信息
3、解决访问无证书https报错:requests.exceptions.SSLError: HTTPSConnectionPool
参考博客:https://blog.csdn.net/qq_31077649/article/details/79013199
1)安装相关模块:
pip install cryptography
pip install pyOpenSSL
pip install certifi
2)关闭证书验证(verify=False)
ret = requests.post(url=url, data=data, json='json', headers=headers, verify=False)
1111111111111111111111111111111
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