利用python socket管理服务器
一.Socketserver的handle方法处理请求
二.实例化socketserver的handle方法
def funzioneDemo():
server = ThreadingServer((HOST,PORT),Handler)
server.serve_forever()
三.创建daemon进程
os.setsid()
#该方法做一系列的事:首先它使得该进程成为一个新会话的领导者,接下来它将进程转变一个新进程组的领导者,最后该进程不再控制终端,
运行的时候,建立一个进程,linux会分配个进程号。然后调用os.fork()创建子进程。若pid>0就是自己,自杀。子进程跳过if语句,
通过os.setsid()成为linux中的独立于终端的进程(不响应sigint,sighup等)
umask的作用:#默认情况下的
umask值是022(可以用umask命令查看),此时你建立的文件默认权限是644(6-0,6-2,6-2),建立的目录的默认
权限是755(7-0,7-2,7-2),可以用ls
-l验证一下哦 现在应该知道umask的用途了,它是为了控制默认权限,不要使默认的文件和目录具有全权而设的
def createDaemon():
#脱离父进程
try:
pid = os.fork()
if pid > 0:
os._exit(0)
except OSError,error:
print "fork #1 failed: %d (%s)" % (error.errno, error.strerror)
os._exit(1)
#修改当前的工作目录
os.chdir('/')
#脱离终端
os.setsid()
#重设文件创建权限
os.umask(0)
#第二次创建进程,禁止进程重新打开终端文件
try:
pid = os.fork()
if pid > 0:
print 'Daemon PID %d' % pid
os._exit(0)
except OSError,error:
print "fork #1 failed: %d (%s)" % (error.errno, error.strerror)
os._exit(1)
funzioneDemo()
补充:
脚本在服务器上运行,使用supervisor进行管理,使其在后台运行。
在服务器(Centos6)上安装supervisor,然后在/etc/supervisor.conf中加入一下配置:
[program:app-monitor]
command = python /root/monitor/app_monitor.py
directory = /root/monitor
user = root
然后在终端中运行supervisord启动supervisor。
在终端中运行supervisorctl,进入shell,运行status查看脚本的运行状态。
supervisor就是用python开发的一套通用的进程管理程序,能将一个普通的命令行进程变为后台daemon,并监控进程状态,异常退出时能自动重启。
四.运行调用daemon方法
if __name__ == "__main__":
createDaemon()
五.启动查看进程
Python s3.py
netstat -tuNLP|grep 1003
六.综合实例
__author__ = 'rolin'
# -*- coding: utf-8 -*-
from SocketServer import tcpServer,ThreadingMixIn,StreamRequestHandler
import time,os,commands
#import rsa
#HOST = '207.198.106.114'
HOST = '49.213.70.62'
PORT = 1003
def transfertime(ret):
a = filter(str.isdigit,ret)
a = list(a)
c = ''
for i in range(len(a)):
c += a[i]
if i in (3,5):
c += '-'
if i==7:
c += ' '
if i in (9,11):
c += ':'
a = time.mktime(time.strptime(c,'%Y-%m-%d %H:%M:%S'))
return a
def stopjava():
os.popen('pkill java')
def startjava():
os.popen("cd /data/game/pubserver/pubserver/qmrserver && /bin/sh start.sh >/dev/null 2>&1")
os.popen("cd /data/game/kuafu/qmrserver && /bin/sh start.sh >/dev/null 2>&1")
os.popen("cd /data/game/qmrserver_lianfu_10003/qmrserver && /bin/sh start.sh >/dev/null 2>&1")
os.popen("cd /data/game/qmrserver901/qmrserver && /bin/sh start.sh >/dev/null 2>&1")
os.popen("cd /data/game/qmrserver902/qmrserver && /bin/sh start.sh >/dev/null 2>&1")
os.popen("cd /data/game/qmrserver903/qmrserver && /bin/sh start.sh >/dev/null 2>&1")
os.popen("cd /data/game/qmrserver904/qmrserver && /bin/sh start.sh >/dev/null 2>&1")
os.popen("cd /data/game/qmrserver10002/qmrserver && /bin/sh start.sh >/dev/null 2>&1")
def updatejava():
os.popen2('rsync -czrtopg --timeout=10 --passWord-file=/root/pass.pwd qmrrsync@10.30.71.2::qmrserver /data/game/qmrserver10002/qmrserver > /dev/null 2>&1')
os.popen2('rsync -czrtopg --timeout=10 --password-file=/root/pass.pwd qmrrsync@10.30.71.2::qmrserver /data/game/qmrserver901/qmrserver > /dev/null 2>&1')
os.popen2('rsync -czrtopg --timeout=10 --password-file=/root/pass.pwd qmrrsync@10.30.71.2::qmrserver /data/game/qmrserver902/qmrserver > /dev/null 2>&1')
os.popen2('rsync -czrtopg --timeout=10 --password-file=/root/pass.pwd qmrrsync@10.30.71.2::qmrserver /data/game/qmrserver903/qmrserver > /dev/null 2>&1')
os.popen2('rsync -czrtopg --timeout=10 --password-file=/root/pass.pwd qmrrsync@10.30.71.2::qmrserver /data/game/qmrserver904/qmrserver > /dev/null 2>&1')
os.popen2('rsync -czrtopg --timeout=10 --password-file=/root/pass.pwd qmrrsync@10.30.71.2::qmrserver /data/game/kuafu/qmrserver > /dev/null 2>&1')
os.popen2('rsync -czrtopg --timeout=10 --password-file=/root/pass.pwd qmrrsync@10.30.71.2::qmrserver /data/game/qmrserver_lianfu_10003/qmrserver > /dev/null 2>&1')
os.popen2('rsync -czrtopg --timeout=10 --password-file=/root/pass.pwd qmrrsync@10.30.71.2::qmrserver /var/ftp/qmrserver')
# time.sleep(3)
# os.popen('sh /var/ftp/qmrserver/s.sh > /dev/null 2>&1')
logfile = open('name1.txt','a')
def log(msg):
datenow = time.strftime('%Y-%m-%d %H:%M:%S',time.localtime())
logstr = '%s : %s \n' %(datenow, msg)
#print(logstr)
logfile.write(logstr)
class Server(ThreadingMixIn,TCPServer):
pass
class ThreadingServer(ThreadingMixIn,TCPServer):
allow_reuse_address = True
class Handler(StreamRequestHandler):
def handle(self):
while True:
try:
ip = self.client_address[0]
# print ip
ret = self.request.recv(2048).strip()
print ret
log('ret %s' % ret)
if ip == '221.237.152.208' or ip == '221.237.152.108' or ip == '127.0.0.1' or ip == '125.71.211.205':
if ret == 'reboot':
self.request.send('请求收到,成功处理.....')
stopjava()
time.sleep(38)
startjava()
elif ret == 'banben':
self.request.send('请求收到,成功处理')
updatejava()
elif ret == 'time':
shijian = os.popen('date +"%Y-%m-%d %H:%M:%S"').read()
self.request.send(shijian)
elif not ret:
# print '没有数据'
break
else:
self.request.send('请求收到,成功处理....')
try:
global time1
time1 = transfertime(ret)
timett = commands.getoutput('date "+%Y-%m-%d %H:%M:%S"')
time2 = transfertime(timett)
except Exception,e:
print e
log('时间格式错误')
self.request.send('时间格式错误')
if int(time1) > int(time2):
print ret
os.popen('date -s "%s"' % ret).read()
self.request.send('时间修改成功')
else:
print ret
self.request.send('已经收到请求,成功处理...')
stopjava()
time.sleep(38)
os.popen('date -s "%s"' % ret).read()
startjava()
time.sleep(10)
else:
log('the source is wrong')
pass
except KeyboardInterrupt:
log('键盘错误')
#server = Server((HOST,PORT),Handler)
def funzioneDemo():
server = ThreadingServer((HOST,PORT),Handler)
server.serve_forever()
def createDaemon():
#脱离父进程
try:
pid = os.fork()
if pid > 0:
os._exit(0)
except OSError,error:
print "fork #1 failed: %d (%s)" % (error.errno, error.strerror)
os._exit(1)
#修改当前的工作目录
os.chdir('/')
#脱离终端
os.setsid()
#重设文件创建权限
os.umask(0)
#第二次创建进程,禁止进程重新打开终端文件
try:
pid = os.fork()
if pid > 0:
print 'Daemon PID %d' % pid
os._exit(0)
except OSError,error:
print "fork #1 failed: %d (%s)" % (error.errno, error.strerror)
os._exit(1)
funzioneDemo()
if __name__ == "__main__":
createDaemon()
七.客户端请求效果
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