76 lines
1.8 KiB
Python
Executable file
76 lines
1.8 KiB
Python
Executable file
#!/usr/bin/python3
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""" Nagios check for haproxy over-subscription.
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fedmsg-gateway is the primary concern as it can eat up a ton of simultaneous
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connections.
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:Author: Ralph Bean <rbean@redhat.com>
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"""
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import socket
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import sys
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def _numeric(value):
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""" Type casting utility """
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try:
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return int(value)
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except ValueError:
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try:
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return float(value)
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except ValueError:
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return value
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def query(sockname):
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""" Read stats from the haproxy socket and return a dict """
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sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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sock.connect(sockname)
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send_string = 'show info\n'
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sock.send(send_string.encode())
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try:
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response = sock.recv(2048).strip().decode()
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lines = response.split('\n')
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data = dict(map(str.strip, line.split(':')) for line in lines)
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data = {k:_numeric(v) for (k, v) in data.items()}
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return data
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except Exception as err:
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print(str(err))
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finally:
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sock.close()
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return None
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def nagios_check(data):
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""" Print warnings and return nagios exit codes. """
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current = data['CurrConns']
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maxconn = data['Maxconn']
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percent = 100 * float(current) / float(maxconn)
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details = "%.2f%% subscribed. %i current of %i maxconn." % (
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percent, current, maxconn,
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)
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if percent < 50:
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print("HAPROXY SUBS OK: " + details)
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return 0
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if percent < 75:
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print("HAPROXY SUBS WARN: " + details)
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return 1
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if percent <= 100:
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print("HAPROXY SUBS CRIT: " + details)
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return 2
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print("HAPROXY SUBS UNKNOWN: " + details)
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return 3
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if __name__ == '__main__':
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try:
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data = query(sockname="/var/run/haproxy-stat")
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except Exception as err:
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print("HAPROXY SUBS UNKNOWN: " + str(err))
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sys.exit(3)
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sys.exit(nagios_check(data))
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