haproxy.conf
global
log 127.0.0.1 local2
daemon
maxconn 256
log 127.0.0.1 local2 info
defaults
log global
mode http
timeout connect 5000ms
timeout client 50000ms
timeout server 50000ms
option dontlognull
listen stats :8888
stats enable
stats uri /admin
stats auth admin:1234
frontend oldboy.org
bind 0.0.0.0:80
option httplog
option httpclose
option forwardfor
log global
acl www hdr_reg(host) -i www.oldboy.org
use_backend www.oldboy.org if www
backend www.oldboy1.org
server 101.1000.7.9 101.1000.7.9 weight 20 maxconn 30
server 2.2.2.7 2.2.2.7 weight 30 maxconn 4000
server 10.10.10.1 10.10.10.1 weight 22 maxconn 2000
server 2.2.2.5 2.2.2.5 weight 30 maxconn 4000
backend www.oldboy2.org
server 3.3.3.3 3.3.3.3 weight 20 maxconn 3000
backend www.oldboy20.org
server 10.10.0.10 10.10.0.10 weight 9999 maxconn 33333333333
import os
if __name__ == "__main__": #变量
msg= """
1:查询
2:添加
3:修改
4:删除
5:退出
"""
msf_dic={"1":fetch,"2":add(),"3":change,"4":delete}
while True:
print(msg)
choice=input("请输入你的选项：").strip()
if not choice:continue
if choice == "5":break
data=input("请输入你的数据：").strip()
##############查询####################
def fetch(data):
# print("这是查询功能")
backend_data = 'backend %s' % data
with open("haproxy.conf","r") as read_f:
tag = False # tag标识一种状态
ret=[]
for read_line in read_f:
if read_line.strip() == backend_data:
tag=True
continue
if tag and read_line.startswith("backend"):
break
if tag:
print(read_line,end="")
ret.append(read_line)
return ret
##############修改#################
def change(data):
print("这是修改功能")
print("用户输入的数据是"，data)
backend=data[0]["backend"] #文件当中的一条记录
backend_data="backend %s" %backend
old_server_record="%sserver %s %s weight %s maxconn %s\n" %(" "*8,data[0]["record"]["server"],
data[0]["record"]["server"],
data[0]["record"]["weight"],
data[0]["record"]["maxconn"])
new_server_record="%sserver %s %s weight %s maxconn %s\n" %(" "*8,data[1]["record"]["server"],
data[1]["record"]["server"],
data[1]["record"]["weight"],
data[1]["record"]["maxconn"])
print("用户想要修改的记录是",old_server_record)
res=fetch(backend)
if not res or old_server_record not in res:
return "修改记录不存在"
else:
index=res.index(old_server_record)
res[index]=new_server_record
res.insert(0,"%s\n" %backend)
with open("haproxy.comf","r") as read_f,\
open("haproxy.comf_new","w") as write_f:
tag=False
has_write=False
for read_line in read_f:
if read_line.strip() == backend_data:
tag=True
continue
if tag and read_line.startswith("backend")
tag=False
if not tag:
write_f.write(read_line)
else:
if not has_write:
for record in res:
write_f.write(record)
has_write=True
os.rename("haproxy.conf","haproxy.conf.bak")
os.rename("haproxy.conf_new","haproxy.conf")
os.remove("haproxy.conf.bak")
###########最终版本##########解耦和
import os
def file_handler(backend_data,res=None,type="fetch"):
if type == "fetch":
with open("haproxy.conf", "r") as read_f:
tag = False
ret = []
for read_line in read_f:
if read_line.strip() == backend_data:
tag = True
continue
if tag and read_line.startswith("backend"):
break
if tag:
print(read_line, end="")
ret.append(read_line)
return ret
elif type == "change":
with open("haproxy.comf","r") as read_f,\
open("haproxy.comf_new","w") as write_f:
tag=False
has_write=False
for read_line in read_f:
if read_line.strip() == backend_data:
tag=True
continue
if tag and read_line.startswith("backend"):
tag=False
if not tag:
write_f.write(read_line)
else:
if not has_write:
for record in res:
write_f.write(record)
has_write=True
os.rename("haproxy.conf", "haproxy.conf.bak")
os.rename("haproxy.conf_new", "haproxy.conf")
os.remove("haproxy.conf.bak")
def fetch(data):
# print("这是查询功能")
backend_data = 'backend %s' % data
return file_handler(backend_data)
def add():
pass
def change(data):
print("这是修改功能")
print("用户输入的数据是",data)
backend=data[0]["backend"] #文件当中的一条记录
backend_data="backend %s" %backend
old_server_record="%sserver %s %s weight %s maxconn %s\n" %(" "*8,data[0]["record"]["server"],
data[0]["record"]["server"],
data[0]["record"]["weight"],
data[0]["record"]["maxconn"])
new_server_record="%sserver %s %s weight %s maxconn %s\n" %(" "*8,data[1]["record"]["server"],
data[1]["record"]["server"],
data[1]["record"]["weight"],
data[1]["record"]["maxconn"])
print("用户想要修改的记录是",old_server_record)
res=fetch(backend)
if not res or old_server_record not in res:
return "修改记录不存在"
else:
index=res.index(old_server_record)
res[index]=new_server_record
res.insert(0,"%s\n" %backend)
file_handler(backend_data,res=res,type="change")
def delete():
pass
if __name__ == "__main__": #变量
msg= """
1:查询
2:添加
3:修改
4:删除
5:退出
"""
msf_dic={"1":fetch,"2":add(),"3":change,"4":delete}
while True:
print(msg)
choice=input("请输入你的选项：").strip()
if not choice:continue
if choice == "5":break
data=input("请输入你的数据：").strip()
if choice != "1":
data=eval(data) #eval提取字符串中的数据结构，也可以执行字符串种的运算表达式
res=msf_dic[choice](data)
print(res)
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