对haproxy文件后端信息进行增删查（python3.x）

Posted 2020-11-19 summer-future

1，程序要求

 1 1、查
 2     输入：www.oldboy.org
 3     获取当前backend下的所有记录
 4 
 5 2、新建
 6     输入：
 7         arg = {
 8             ‘backend‘: ‘www.oldboy.org‘,
 9             ‘record‘:{
10                 ‘server‘: ‘100.1.7.9‘,
11                 ‘weight‘: 20,
12                 ‘maxconn‘: 30
13             }
14         }
15 
16 3、删除
17     输入：
18         arg = {
19             ‘backend‘: ‘www.oldboy.org‘,
20             ‘record‘:{
21                 ‘server‘: ‘100.1.7.9‘,
22                 ‘weight‘: 20,
23                 ‘maxconn‘: 30
24             }
25         }
26 
27 复制代码

程序要求

 1 global       
 2         log 127.0.0.1 local2
 3         daemon
 4         maxconn 256
 5         log 127.0.0.1 local2 info
 6 defaults
 7         log global
 8         mode http
 9         timeout connect 5000ms
10         timeout client 50000ms
11         timeout server 50000ms
12         option  dontlognull
13 
14 listen stats :8888
15         stats enable
16         stats uri       /admin
17         stats auth      admin:1234
18 
19 frontend oldboy.org
20         bind 0.0.0.0:80
21         option httplog
22         option httpclose
23         option  forwardfor
24         log global
25         acl www hdr_reg(host) -i www.oldboy.org
26         use_backend www.oldboy.org if www
27 
28 backend www.oldboy.org
29         server 100.1.7.9 100.1.7.9 weight 20 maxconn 3000

haproxy配置文件

输入以上信息可以达到需要的效果

 

 1 def find_web_info(x):
 2         if choice_num==1:
 3             with open("haproxy_file",‘r‘) as f:
 4                 for line in f:
 5                     if line.startswith("backend %s" %x):
 6                         for i in range(10000):
 7                             read=f.readline()
 8                             if read.startswith(‘backend‘):
 9                                 break
10                             elif read.strip()==‘‘:
11                                 pass
12                             else:
13                                 print(read)
14                     else:
15                         pass

查找信息模块

1 def create_web_info(x):
2     key_list=[]
3     key1_list=[]
4     with open("haproxy_file",‘a‘) as f:
5         f.write(‘bakend‘+‘ ‘+x["bakend"]+‘
‘)
6         web_info_dic=x[‘record‘]
7         f.write(‘		‘+‘server‘+‘ ‘+web_info_dic[‘server‘]+‘ ‘+‘weight‘+‘ ‘8             +str(web_info_dic[‘weight‘])+‘ ‘+‘maxconn‘+‘ ‘+str(web_info_dic[‘maxconn‘])+‘
‘)
9     print("写入后端信息成功")

创建信息模块

 1 def delete_web_info(x):
 2     find_line=‘‘
 3     backend_name=‘bakend‘+‘ ‘+x["bakend"]
 4     backend_name=backend_name.strip()
 5     web_info_dic=x[‘record‘]
 6     back_info=‘server‘+‘ ‘+web_info_dic[‘server‘]+‘ ‘+‘weight‘+‘ ‘ 7             +str(web_info_dic[‘weight‘])+‘ ‘+‘maxconn‘+‘ ‘+str(web_info_dic[‘maxconn‘])
 8     back_info=back_info.strip()
 9     with open("haproxy_file",‘r‘) as f:
10         for line in f:
11             if backend_name in line:
12                line=line.replace(line,‘‘)
13             elif back_info in line:
14                line=line.replace(line,‘‘)
15             else:
16                 pass
17             find_line+=line
18     with open("haproxy_file",‘w‘) as f1:
19         f1.write(find_line )
20     print("后端信息删除完成")

删除信息模块

 1 while True:
 2     print(‘‘‘
 3             welecome to haproxy file           
 4                 1.find_web_info            
 5                 2.create_web_info
 6                 3.delete_web_ifo   
 7         ‘‘‘)
 8     choice_num=int(input("输入你对haproxy文件的操作选择:"))
 9     if choice_num ==1:
10         find_name=input("输入需要查找的域名:")
11         find_web_info(find_name )
12     elif choice_num ==2:
13         create_info=input("输入你插入的后端信息:")
14         create_info =eval(create_info )
15         create_web_info(create_info)
16     elif choice_num ==3:
17         delete_info=input("输入你删除的信息:")
18         delete_info =eval(delete_info )
19         delete_web_info(delete_info )
20     else:
21         print("输入有误，请再输入一次")

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