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executable file 65 lines (54 sloc) 2.021 kB
#!/usr/bin/env python
"""
Copyright (c) 2012 Yahoo! Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
"""
import sys
import socket
import json
# Default socket filename
socket_file = '/tmp/haproxy_socket'
def get_haproxy_socket_filename():
socket_file=None
# Open the haproxy config and see if we can find the socket file
for line in open('/etc/haproxy/haproxy.cfg'):
splitline=line.strip().split()
if len(splitline) > 2 and splitline[0] == 'stats' and splitline[1] == 'socket':
socket_file=splitline[2]
break
return socket_file
def query_haproxy_socket(socket_file='/tmp/haproxy',command='show stat'):
if not command.endswith('\n'):
command=command+'\n'
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s.connect(socket_file)
s.send(command)
data=""
d=s.recv(1024)
while d:
data=data+d
d=s.recv(1024)
#data = s.recv()
s.close()
return data
def get_backends(vip,state='ALL'):
hosts=[]
for line in query_haproxy_socket(get_haproxy_socket_filename(),'show stat').split('\n'):
if not line.startswith('#') and len(line.strip()):
splitline=line.strip().split(',')
if splitline[0]==vip and splitline[1] != 'BACKEND':
if state.upper() == 'ALL' or (splitline[17]==state):
hosts.append(splitline[1])
return hosts
state='ALL'
if len(sys.argv) > 2 and sys.argv[2].upper() in ['UP','DOWN']:
state=sys.argv[2].upper()
print json.dumps(get_backends(sys.argv[1],state),indent=4)
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