修改haproxy配置文件

 1 def search():       #查找域名函数
 2     """
 3     1.readlines将内容变成一个列表
 4     2.找到域名对应的索引
 5     3.域名接下来几行是具体的服务器信息，利用上面索引循环加1遍历
 6     """
 7     url = 'www.oldboy.net'
 8     url_title = 'backend %s
' % url
 9     with open('haproxy.txt','r') as f:
10         f_read = f.readlines()
11         if url_title in f_read:
12             index = f_read.index(url_title)
13             print(f_read[index])
14             index = index + 1
15             while index < len(f_read):
16                 # print(len(f_read))
17                 if 'weight' in f_read[index] :
18                     print(f_read[index])
19                     index+=1
20                 else:
21                     break
22         else:
23             exit('没有此域名')
24 
25 def modifeild():  #删除
26     """
27     1.利用上面查找的方法，先把域名对应条目索引取出放在一个列表中
28     2.再将老文件内容逐行写入新文件，当索引在上面列表时就忽略不写入,(然后把旧文件删除，新文件改成旧文件名，这部分没写)
29     """
30     url = 'www.oldboy.ne'
31     url_title = 'backend %s
' % url
32     index_list = []
33     with open('haproxy.txt', 'r') as f,open('haproxynew.txt', 'w+') as fnew:
34         f_read = iter(f.readlines())
35         if url_title in f_read:
36             index = f_read.index(url_title)
37             print(f_read[index])
38             index_list.append(index)
39             print(index_list)
40             index = index + 1
41             while index < len(f_read):
42                 # print(len(f_read))
43                 if 'weight' in f_read[index]:
44                     index_list.append(index)
45                     print(f_read[index])
46                     print(index_list)
47                     index += 1
48             else:
49                 for i,line in enumerate(f_read):
50                     if i in index_list:
51                         pass
52                     else:
53                         fnew.write(line)
54         else:
55             exit('没有此域名')
56 
57 def add():      #新增
58     '''"
59     首次新增时，域名和服务器信息一起添加，再次添加时，只添加服务器信息
60     """
61     url = 'www.baidu.com'
62     url_title = 'backend www.baidu.com
'
63     server = '1.1.1.3'
64     weight = '30'
65     maxconn = '3000'
66     with open('haproxy.txt', 'r+') as f:
67         f_read = f.readlines()
68         print(f_read)
69         if url_title in f_read:
70             content = "		server {} {} weight {} maxconn {}
" 
71                 .format(server, server, weight, maxconn)
72             print(content)
73             f.write(content)
74         else:
75             print(url_title)
76             f.write('
')
77             f.write(url_title)
78             content = "		server {} {} weight {} maxconn {}
" 
79                 .format(server, server, weight, maxconn)
80             print(content)
81             f.write(content)