服务器运维常用的python模块概述
最近开始复习python的使用，把服务器运维常用的模块的用法进行了实例化概述。
==========sort=========================
python 排序；
ls=[1,31,13,141,41]
ls.sort()
print ls
元组sort：
>>> lst=[('wyl',24),('hjj',25),('zs',22),('lisi',14)]
>>> sorted(lst,key=lambda lst:lst[1],reverse=True)
[('hjj', 25), ('wyl', 24), ('zs', 22), ('lisi', 14)]
字典排序：
>>> print d
{'a': 2, 'e': 221, 'd': 222, 'f': 22, 'age': 24, 'name': 'wyl'}
>>> sorted(d.iteritems(),key= lambda d:d[1])
[('a', 2), ('f', 22), ('age', 24), ('e', 221), ('d', 222), ('name', 'wyl')]
==========paramiko=========================
python ssh模块：
import paramiko
def ssh(host,cmd):
#host = '192.168.0.213'
user = 'root'
s = paramiko.SSHClient()
s.load_system_host_keys()
s.set_missing_host_key_policy(paramiko.AutoAddPolicy())
privatekeyfile = os.path.expanduser('~/.ssh/id_rsa')
mykey = paramiko.RSAKey.from_private_key_file(privatekeyfile)
# mykey=paramiko.DSSKey.from_private_key_file(privatekeyfile,password='061128')
s.connect(host,22,user,pkey=mykey,timeout=5)
#cmd=raw_input('cwd:')
#cmd="ip a | grep inet | grep 192.168 | grep brd | awk -F/22 '{print $1}'|awk '{print $2}'"
stdin,stdout,stderr = s.exec_command(cmd)
cmd_result = stdout.read(),stderr.read()
for line in cmd_result:
return line.strip("\n")
s.close()
print ssh("192.168.0.2",'ls /root')
==========multiprocessing=============
import multiprocessing
def bingfa(picmip):
Srealmount=set(ssh(picmip,"mount|awk '$1~/192.168.0.7/{print $1}'").rstrip().split("\n"))
#print Srealmount
shortlist=list(Slocalmountls - Srealmount)
for sl in shortlist:
print "mount-error-"+sl + time.ctime()
f=open('/share/yunwei/shell/mountip.txt')
pool=multiprocessing.Pool(processes=4)
for ips in f:
pool.apply_async(bingfa,(ips,))
pool.close()
pool.join()
f.close()
========MySQLdb===============
python mysql模块：
import MySQLdb
def pyfmysql(*args):
conn=MySQLdb.connect(host='10.0.0.24',user='root',passwd='xxxxx',db='mon',port=3306)
cur=conn.cursor()
conn.select_db('monitor')
cur.execute("""insert into T_SYS_LOG (CONTENT,HOST_IP,MONITOR_TYPE,MONITOR_LEVEL,SMS_FLAG,GROUP_ID) values(%s,%s,%r,%r,%r,%r)""",args)
#sqlcmd='insert into T_SYS_LOG(CONTENT, HOST_IP, MONITOR_TYPE, MONITOR_LEVEL, SMS_FLAG,GROUP_ID) values(%s,%s,%s,%d,%d,%d)'
sqlresult = cur.fetchall()
print sqlresult
conn.commit()
cur.close()
conn.close()
pyfmysql('test','127.0.0.1',1,2,0,6)
==========json=============
import json
newd={'four': '192.168.0.10', 'second': '192.168.0.5', 'third': '192.168.0.7', 'first': '192.168.0.2'}
ojson=json.dumps(newd)
file=open('/tmp/jsonfile','w')
file.write(ojson)
f= open(r'/tmp/jsonfile')
jsonobj = json.load(f)
oldd=eval(str(jsonobj))
f.close
=========shutil==================
import shutil
shutil.copy("1","2")
shutil.rmtree("42")
=========cStringIO===============
import cStringIO
输入：
s=cStringIO.StringIO()
s.write("you are a girl")
输出：
print s.getvalue()
或者
s.seek(0)
print s.read()
=============time=================
import datetime
passt = datetime.datetime.now() - datetime.timedelta(minutes=10)
curtime2 = passt.strftime('%Y%m%d%H')
==============urllib=================
import urllib
ourl=urllib.urlopen('http://www.baidu.com')
print ourl.info()
for line in ourl:
print line,
ourl.close()
import urllib
print urllib.urlopen('http://www.google.com').read()
============urllib2================
#!/bin/env python
import urllib2
# set up authentication info
authinfo = urllib2.HTTPBasicAuthHandler()
authinfo.add_password(realm='PDQ Application',
uri='http://10.0.0.1:8091/index.html',
user='admin',
passwd='admin')
#proxy_support = urllib2.ProxyHandler({"http" : "http://ahad-haam:3128"})
# build a new opener that adds authentication and caching FTP handlers
opener = urllib2.build_opener(authinfo,urllib2.CacheFTPHandler)
# install it
urllib2.install_opener(opener)
f = urllib2.urlopen('http://10.0.0.1:8091/index.html#sec=servers')
text=f.read()
print text
#============get ip================
import subprocess
cmd3=subprocess.Popen("hostname",shell=True,stdout=subprocess.PIPE)
hostname=''.join(cmd3.stdout.readlines()).strip("\n")
#============远程简单执行命令================
f=open('/tmp/host-user')
for line in f:
Lline=line.split(' ')
ip=Lline[0]
user=Lline[1].strip()
# print ip,user
cmd='userdel '+user+';rm -rf /home/'+user
cmd2="sed -i /^"+user+".*/d /etc/sudoers"
print ip,user
ssh(ip,cmd)
ssh(ip,cmd2)
if p == 'webkitui.xxxx.com' or p == 'touch.xxx.com' or p == 'wap.xxx.com':
print "======"+p+"======="
elif p == 'n.xxxx.com' or p == 'next.xxxxx.com':
print "======"+p+"======="
errinfo="sh /share/yunwei/shell/commonapi/mms_api_01.sh %s-%r-respone-time-%.3fs %s 1 2 0 6" %(str(p.split('.')[0]),ip,float(ip_detail['rtime'])/ip_detail['spv'],hostname)
os.popen(errinfo)
errinfo="sh /share/yunwei/shell/commonapi/mms_apinew_01.sh %s-%r-respone-time-%.3fs %s 18 1 1" %(str(p.split('.')[0]),ip,float(ip_detail['rtime'])/ip_detail['spv'],hostname)
os.popen(errinfo)
============python-redis================
>>> import redis
>>> r = redis.StrictRedis(host='localhost', port=6379, db=0)
>>> r.set('foo', 'bar')
True
>>> r.get('foo')'
bar'
===========optparse====================
from optparse import OptionParser
'''
def helpFunc(a,b,c,d):
print ""
print "modify_file.py -A|--add (ip --> hostname) -D|--del (ip --> hostname) -M|--modify (ip --> hostname)"
print "..."
sys.exit(3)
parser = OptionParser(add_help_option=0)
parser.add_option("-h", "--help", action="callback", callback=helpFunc)
'''
def verFunc(a,b,c,d):
print "Ver 0.0.1"
sys.exit(3)
parser = OptionParser()
parser.add_option("-V", "--version", action="callback", callback=verFunc, help="show script version")
#parser.add_option("-V", "--version",action="store_false",help="Ver 0.0.1")
parser.add_option("-A", "--add", action="store", type="string", dest="add_record",help="add record to /etc/hosts file")
parser.add_option("-D", "--del", action="store", type="string", dest="del_record",help="del record to /etc/hosts file")
parser.add_option("-M", "--modify", action="store", type="string", dest="modify_record",help="modify record to /etc/hosts file")
(options, args) = parser.parse_args(sys.argv)
if options.add_record is not None:
print options.add_record
if options.del_record is not None:
print options.del_record
if options.modify_record is not None:
print options.modify_record
===========class====================
class test2:
def __init__(self,name):
self.Name=name
def speak2(self):
print "my name " + self.Name
print test2('wangyl').speak2()