你得知道的python运维常用脚本！（日常更新）！

github地址： https://github.com/opsonly , 上面是一个基于 python3.7 和 django2.1 的多人博客系统，喜欢的可以给个star~

判断是否是一个目录

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @Time : 2018-12-18 15:16
# @Author : opsonly
# @Site : 
# @File : opsUse.py
# @Software: PyCharm
import os
dir = "/var/www/html/EnjoyCarApi/"
if os.path.isdir(dir):
 print('%s is a dir' % dir)
else:
 print('%s is not a dir' % dir)

系统内存与磁盘检测

加群：960410445哦

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @Time : 2018-12-17 17:16
# @Author : opsonly
# @Site : 
# @File : systemissue.py
# @Software: PyCharm
import psutil
def memissue():
 print('内存信息：')
 mem = psutil.virtual_memory()
 # 单位换算为MB
 memtotal = mem.total/1024/1024
 memused = mem.used/1024/1024
 membaifen = str(mem.used/mem.total*100) + '%'
 print('%.2fMB' % memused)
 print('%.2fMB' % memtotal)
 print(membaifen)
def cuplist():
 print('磁盘信息：')
 disk = psutil.disk_partitions()
 diskuse = psutil.disk_usage('/')
 #单位换算为GB
 diskused = diskuse.used / 1024 / 1024 / 1024
 disktotal = diskuse.total / 1024 / 1024 / 1024
 diskbaifen = diskused / disktotal * 100
 print('%.2fGB' % diskused)
 print('%.2fGB' % disktotal)
 print('%.2f' % diskbaifen)
memissue()
print('*******************')
cuplist()

统计nginx日志前十ip访问量并以柱状图显示

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @Time : 2018-12-18 15:49
# @Author : opsonly
# @Site : 
# @File : nginx_ip.py
# @Software: PyCharm
import matplotlib.pyplot as plt
#
nginx_file = 'nginx2018-12-18_07:45:26'
ip = {}
# 筛选nginx日志文件中的ip
with open(nginx_file) as f:
 for i in f.readlines():
 s = i.strip().split()[0]
 lengh = len(ip.keys())
 # 统计每个ip的访问量以字典存储
 if s in ip.keys():
 ip[s] = ip[s] + 1
 else:
 ip[s] = 1
#以ip出现的次数排序返回对象为list
ip = sorted(ip.items(), key=lambda e:e[1], reverse=True)
#取列表前十
newip = ip[0:10:1]
tu = dict(newip)
x = []
y = []
for k in tu:
 x.append(k)
 y.append(tu[k])
plt.title('ip access')
plt.xlabel('ip address')
plt.ylabel('PV')
#x轴项的翻转角度
plt.xticks(rotation=70)
#显示每个柱状图的值
for a,b in zip(x,y):
 plt.text(a, b, '%.0f' % b, ha='center', va= 'bottom',fontsize=7)
plt.bar(x,y)
plt.legend()
plt.show()

查看网段里有多少ip地址

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @Time : 2018-12-18 15:31
# @Author : opsonly
# @Site : 
# @File : ipTest.py
# @Software: PyCharm
import IPy
ip = IPy.IP('172.16.0.0/26')
print(ip.len())
for i in ip:
 print(i)

gitlab钩子脚本，实现简单自动化操作

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @Time : 2018-12-18 17:41
# @Author : opsonly
# @Site :
# @File : gitlabCi.py
# @Software: PyCharm
from flask import Flask,request,render_template,make_response,Response
import json,os,re,requests
import subprocess
app = Flask(__name__)
null = ""
cmd = "/var/www/html/ladmin-devel/"
@app.route('/test',methods=['POST'])
def hello():
 json_dict = json.loads(request.data)
 name = json_dict['event_name']
 ref = json_dict['ref'][11:]
 project = json_dict['project']['name']
 if name == 'push' and ref == 'master':
 os.chdir(cmd)
 s = subprocess.getoutput('sudo -u nginx composer install')
 return Response(s)
 else:
 return Response('none')
if __name__ == '__main__':
 app.run(host='0.0.0.0',port=8080)

解析一组域名的ip地址

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @Time : 2018-12-20 10:21
# @Author : opsonly
# @Site : 
# @File : dnsReloves.py
# @Software: PyCharm
import dns.resolver
from collections import defaultdict
hosts = ['baidu.com','weibo.com']
s = defaultdict(list)
def query(hosts):
 for host in hosts:
 ip = dns.resolver.query(host,"A")
 for i in ip:
 s[host].append(i)
 return s
for i in query(hosts):
 print(i,s[i])

清除指定redis缓存

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @Time : 2018-12-20 15:19
# @Author : opsonly
# @Site : 
# @File : redisdel.py
# @Software: PyCharm
import redis
#选择连接的数据库
db = input('输入数据库:')
r = redis.Redis(host='127.0.0.1',port=6379,db=0)
#输入要匹配的键名
id = input('请输入要执匹配的字段：')
arg = '*' + id + '*'
n = r.keys(arg)
#查看匹配到键值
for i in n:
 print(i.decode('utf-8'))
#确定清除的键名
delid = input('输入要删除的键：')
print('清除缓存 %s 成功' % delid)

下载阿里云RDS二进制日志

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# @Time : 2018-12-12 13:52
# @Author : opsonly
# @Site : 
# @File : rds_binlog.py
# @Software: PyCharm
'''
查询阿里云rds binlog日志
'''
import base64,urllib.request
import hashlib
import hmac
import uuid,time,json,wget
class RDS_BINLOG_RELATE(object):
 def __init__(self):
 #阿里云的id和key
 self.access_id = '**********************'
 self.access_key = '**********************'
 #通过id和key来进行签名
 def signed(self):
 timestamp = time.strftime("%Y-%m-%dT%H:%M:%SZ", time.gmtime())
 header = {
 'Action': 'DescribeBinlogFiles',
 'DBInstanceId': 'rm-wz9azm783q621n9',
 'StartTime': '2018-07-11T15:00:00Z',
 'EndTime': timestamp,
 'Format': 'JSON',
 'Version': '2014-08-15',
 'AccessKeyId': self.access_id,
 'SignatureVersion': '1.0',
 'SignatureMethod': 'HMAC-SHA1',
 'SignatureNonce': str(uuid.uuid1()),
 'TimeStamp': timestamp,
 }
 #对请求头进行排序
 sortedD = sorted(header.items(), key=lambda x: x[0])
 url = 'https://rds.aliyuncs.com'
 canstring = ''
 #将请求参数以#连接
 for k, v in sortedD:
 canstring += '&' + self.percentEncode(k) + '=' + self.percentEncode(v)
 #对请求连接进行阿里云要的编码规则进行编码
 stiingToSign = 'GET&%2F&' + self.percentEncode(canstring[1:])
 bs = self.access_key + '&'
 bs = bytes(bs, encoding='utf8')
 stiingToSign = bytes(stiingToSign, encoding='utf8')
 h = hmac.new(bs, stiingToSign, hashlib.sha1)
 stiingToSign = base64.b64encode(h.digest()).strip()
 #将签名加入到请求头
 header['Signature'] = stiingToSign
 #返回url
 url = url + "/?" + urllib.parse.urlencode(header)
 return url
 #按照规则替换
 def percentEncode(self,store):
 encodeStr = store
 res = urllib.request.quote(encodeStr)
 res = res.replace('+', '%20')
 res = res.replace('*', '%2A')
 res = res.replace('%7E', '~')
 return str(res)
 #筛选出链接下载二进制日志文件
 def getBinLog(self):
 binlog_url = self.signed()
 req = urllib.request.urlopen(binlog_url)
 req = req.read().decode('utf8')
 res = json.loads(req)
 for i in res['Items']['BinLogFile']:
 wget.download(i['DownloadLink'])
s = RDS_BINLOG_RELATE()
s.getBinLog()

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