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__": # variable
msg = "" "
1: Query
2: Add
3: Modify the
4: Delete
5: Exit
" ""
msf_dic = { "1": FETCH, "2": the Add (), "3": change, "4 ": delete}
True the while:
Print (msg)
Choice = the INPUT ( "Please enter your options:"). Strip ()
IF not Choice: the Continue
IF Choice == "5": BREAK
the Data = the INPUT ( "Please enter your data:" ) .strip ()
##############Inquire####################
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
##############modify#################
DEF Change (Data):
Print ( "It is a modification function")
Print ( "user input data is", Data)
backend = Data [0] [ "backend"] # files among a record
backend_data = "backend% s "% backend
old_server_record ="% sServer% S% S weight% S The maxconn% S \ n-"% (" "*. 8, Data [0] [" Record "] [" Server "],
Data [0] [" Record "] [" Server "],
Data [0] [" Record "] [" weight "],
Data [0] [" Record "] [" The maxconn "])
new_server_record ="% sServer% S% S weight% S maxconn% s \ n "% ( " "* 8,data[1]["record"]["server"], " "* 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")
########### ########## decoupling and the final version
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)
= True has_write
os.rename ( "haproxy.conf", "haproxy.conf.bak")
os.rename ( "haproxy.conf_new", "haproxy.conf")
The os.remove ( "haproxy.conf.bak")
DEF FETCH (Data):
backend = data [0] [ "backend"] # files among a record
backend_data = "backend% S"% backend
old_server_record = "% sServer% S% S weight% S maxconn% s \ n "% ( " "* 8, data [0] [" record "]["server"],
# Print ( "This is the search function")
backend_data = 'backend% S'% Data
return file_handler are (backend_data)
DEF the Add ():
Pass
DEF Change (Data):
Print ( "It is a modification function")
Print ( "user input the data ", data)
data [0] [" Record "] [" Server "],
data [0] [" Record "] [" weight "],
data [0] [" Record "] [" the maxconn " ])
new_server_record = "sServer% weight% S% S% S% S The maxconn \ n-"% ( "" *. 8, Data [. 1] [ "Record"] [ "Server"],
data[1]["record"]["server"],
Data [. 1] [ "Record"] [ "weight"],
Data [. 1] [ "Record"] [ "The maxconn"])
Print ( "the user wants to modify record", old_server_record)
RES = FETCH (backend)
not not old_server_record RES or IF in RES:
return "modify record does not exist"
the else:
index = res.index (old_server_record)
res[index]=new_server_record
res.insert (0, "% S \ n-" backend%)
file_handler are (backend_data, RES = RES, type = "Change")
DEF the Delete ():
Pass
IF __name__ == "__main__": # variable
msg = "" "
1: query
2: Add
3:Modify
4: Delete
5: Quit
. "" "
msf_dic = { "1": FETCH, "2": the Add (), "3": Change, "4": delete}
the while True:
Print (MSG)
Choice = input ( "Please enter your options:") Strip ().
IF not Choice: the Continue
IF Choice == "5": BREAK
the data = input ( "Please enter your data:"). Strip ()
! = IF Choice "1":
data = eval (data) #eval extract data structure string, the string may be performed an operation expression thereof
RES = msf_dic [Choice] (Data)
Print (RES)
----------