117 lines
3.5 KiB
Python
117 lines
3.5 KiB
Python
"""Health Check module for Squid service"""
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import os
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import commands
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import pwd
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import socket
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from compass.actions.health_check import base
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from compass.actions.health_check import utils as health_check_utils
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class SquidCheck(base.BaseCheck):
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"""Squid health check class."""
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NAME = "Squid Check"
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def run(self):
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"""do health check"""
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self.check_squid_files()
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print "[Done]"
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self.check_squid_service()
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print "[Done]"
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if self.code == 1:
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self.messages.append(
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"[%s]Info: Squid health check has completed. "
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"No problems found, all systems go." % self.NAME)
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return (self.code, self.messages)
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def check_squid_files(self):
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"""Validates squid config, cache directory and ownership"""
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print "Checking Squid Files......",
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var_map = {
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'match_squid_conf': False,
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'match_squid_cache': False,
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'match_squid_ownership': False,
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}
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conf_err_msg = health_check_utils.check_path(
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self.NAME,
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"/etc/squid/squid.conf")
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if not conf_err_msg == "":
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self._set_status(0, conf_err_msg)
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elif int(oct(os.stat('/etc/squid/squid.conf').st_mode)) < 644:
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self._set_status(
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0,
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"[%s]Error: squid.conf has incorrect "
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"file permissions" % self.NAME)
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else:
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var_map['match_squid_conf'] = True
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squid_path_err_msg = health_check_utils.check_path(
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self.NAME, '/var/squid/')
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if not squid_path_err_msg == "":
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self._set_status(0, squid_path_err_msg)
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elif health_check_utils.check_path(
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self.NAME,
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'/var/squid/cache'
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) != "":
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self._set_status(
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0,
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health_check_utils.check_path(
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self.NAME,
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'/var/squid/cache'
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)
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)
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else:
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var_map['match_squid_cache'] = True
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uid = os.stat('/var/squid/').st_uid
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gid = os.stat('/var/squid/').st_gid
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if uid != gid or pwd.getpwuid(23).pw_name != 'squid':
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self._set_status(
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0,
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"[%s]Error: /var/squid directory ownership "
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"misconfigured" % self.NAME)
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else:
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var_map['match_squid_ownership'] = True
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fails = []
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for key in var_map.keys():
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if var_map[key] is False:
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fails.append(key)
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if len(fails) != 0:
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self.messages.append(
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"[%s]Info: Failed components for squid config: "
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"%s" % (
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self.NAME,
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', '.join(item for item in fails)
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)
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)
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return True
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def check_squid_service(self):
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"""Checks if squid is running on port 3128"""
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print "Checking Squid service......",
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if not 'squid' in commands.getoutput('ps -ef'):
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self._set_status(
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0,
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"[%s]Error: squid service does not seem "
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"running" % self.NAME)
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try:
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if 'squid' != socket.getservbyport(3128):
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self._set_status(
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0,
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"[%s]Error: squid is not listening on "
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"3128" % self.NAME)
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except:
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self._set_status(
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0,
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"[%s]Error: No service is listening on 3128, "
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"squid failed" % self.NAME)
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return True
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