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#!/usr/bin/env python
#
# Copyright 2012, 42Lines, Inc.
# Original Author: Jim Browne
#
# 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.
import pynagios
from pynagios import Plugin, make_option, Response
import boto
from boto.ec2 import regions
class AvailabilityZonesCheck(Plugin):
region = make_option("--region",
help="Region to check (default: us-east-1)",
default=[],
action="append")
allregions = make_option("--all",
help="Check all regions",
action="store_true")
responses = []
message_field = 0
def check(self):
# Boto 2.2.2 and later has messages field in Zone
# Boto < 2.0 missing __version__, hence try/except
try:
from pkg_resources import parse_version
if parse_version(boto.__version__) >= parse_version('2.2.2'):
self.message_field = 1
except AttributeError:
pass
if not self.options.region:
self.options.region = ["us-east-1"]
if self.options.allregions:
regs = regions()
else:
regs = []
for ropt in self.options.region:
for r in regions():
if r.name == ropt:
regs.append(r)
break
else:
message = "Region %s not found." % ropt
return Response(pynagios.UNKNOWN, message)
for r in regs:
self.regioncheck(r)
if len(self.responses):
result = Response(pynagios.WARNING, ", ".join(self.responses))
else:
names = [r.name for r in regs]
result = Response(pynagios.OK, "Checked regions: " +
", ".join(names))
return result
def regioncheck(self, region):
ec2 = boto.connect_ec2(region=region)
zones = ec2.get_all_zones()
for zone in zones:
if self.options.verbosity:
debug = "name %s state %s" % (zone.name, zone.state)
if self.message_field:
debug += " message %s" % ("; ".join(zone.messages))
print debug
if zone.state != 'available':
message = "%s:%s" % (region.name, zone.name)
message += " state %s" % (zone.state)
if self.message_field:
message += " (\"%s\")" % ("; ".join(zone.messages))
self.responses.append(message)
if __name__ == "__main__":
# Instantiate the plugin, check it, and then exit
AvailabilityZonesCheck().check().exit()
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