Python Learning the first module Haproxy configuration operation

Shopping Cart Simulation

Demand:

• According to the user input and output corresponding to the backend
• The server information can be added backend and
• Sever information to delete backend and sever information
• When you add server information, the information is duplicated with the existing information and does not operate

Description

• Python version is 3.6
• The results of additions and deletions can be verified within haproxy.conf

haproxy.conf configuration file Contents:

GlobalLog127.0.0.1local2 Daemon Maxconn256Log127.0.0.1local2 infodefaults LogGlobalmode HTTP Timeout connect 5000ms timeout client 50000ms timeout server 50000ms opt Ion Dontlognulllisten Stats:8888stats enable stats URI/Admin Stats Auth admin:1234frontend oldboy.org Bind0.0.0.0:80option httplog option httpclose option forwardfor logGlobalACL www hdr_reg (host)-i www.oldboy.org use_backend www.oldboy.orgifwwwbackend www.oldboy.org Server100.1.7.9 Weight Maxconn 3000Backend www.qq.com Server100.1.7.10 Weight Maxconn 3000Backend www.cnblog.com Server100.1.7.14 Weight Maxconn 3000

Code:

#/usr/bin/env python#-*-coding:utf-8-*-# author:fioimport Osimport jsonarg = {' backend ': ' www.yahoo.com ', ' rec Ord ': {' IP ': ' 100.1.7.13 ', ' weight ': ' a ', ' maxconn ': '}}def ' select_info (url): flag = Fa LSE with Open ('./haproxy.conf ', ' r ') as Conf:for line in Conf:if line.strip (). startswith ("backend% s "% url"): flag = True Continue if Flag:record_info = Line.strip (  Flag = False Print (record_info) def insert_info (info): server_info = eval (info) url = server_info[' backend ' IP = server_info[' record ' [' IP '] weight = server_info[' record ' [' weight '] maxconn = Serve            r_info[' record ' [' maxconn '] flag = False with open ('./haproxy.conf ', ' r ') as Conf1:for line in Conf1:                If Line.strip (). startswith (' backend%s '% url): print ("config already Exists") flag = False Break ElsE:flag = True Continue if Flag:with open ('./haproxy.conf ', ' a ') as Conf2:  Conf2.write (' backend ' + URL + ' \ n ') conf2.write (' server%s weight%s maxconn%s\n '% (ip, weight,  MAXCONN)) print ("config%s Insert succeeded"% url) def delete_info (url): flag = False with open ('./haproxy.conf ', ' r+ ') as Conf1:with Open ('./haproxy_tmp.conf ', ' W ') as Conf2:for line1 in Conf1:if Line1.strip (). startswith (' backend%s '% url): conf2.write ("") flag = True Co                    Ntinue elif flag and Line1.strip (). startswith (' server '): conf2.write ("")                    Flag = False Continue Else:conf2.write (line1)  Continue Os.remove ('./haproxy.conf ') os.rename ('./haproxy_tmp.conf ', './haproxy.conf ') print (' backend%s content deleted '% Url) if __name__ = = "__main__ ": Print (" ############################### # Please choose how To: # 1.  Query # 2.  Insert # 3. Delete ############################### ') order_num = input ("selected Ordinal:") if order_num = = ' 1 ': URL = input ("please Select the domain name to query: ") select_info (URL) elif order_num = = ' 2 ': info = input (" "enter The complete configuration, sample format ({' backend ': ' Www.ya hoo.com ', ' record ': {' IP ': ' 100.1.7.13 ', ' weight ': ' + ', ' maxconn ': ' + '}} '): ins Ert_info (info) elif Order_num = = ' 3 ': url = input ("please Enter the domain name to be Deleted:") delete_info (url) else:print ( "please Enter the correct serial number!" ")

　　

Python Learning the first module Haproxy configuration operation