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Merging with check_yum from code.google.com
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Pall Sigurdsson
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@ -1,15 +1,36 @@
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#!/usr/bin/env python
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#!/usr/bin/python
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# coding=utf-8
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"""Nagios plugin to test for Yum updates on RedHat/CentOS Linux.
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#Copyright © 2008-2012, Hari Sekhon <harisekhon@gmail.com>.
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#Copyright © 2012, Christoph Anton Mitterer <mail@christoph.anton.mitterer.name>.
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#All rights reserved.
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#
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#
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#This program is free software; you can redistribute it and/or
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#modify it under the terms of the GNU General Public License
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#as published by the Free Software Foundation; version 2
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#of the License.
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#
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#This program is distributed in the hope that it will be useful,
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#but WITHOUT ANY WARRANTY; without even the implied warranty of
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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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#GNU General Public License for more details.
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#
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#You should have received a copy of the GNU General Public License
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#along with this program; if not, write to the Free Software
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#Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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"""Nagios plugin to check the YUM package management system for package updates.
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Can optionally alert on any available updates as well as just
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security related updates"""
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__author__ = "Hari Sekhon"
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__title__ = "Nagios Plugin for Yum updates on RedHat/CentOS systems"
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__version__ = "0.7.2"
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__title__ = "Nagios plugin to check the YUM package management system for package updates."
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__version__ = "0.7.3"
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# Changes:
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# 0.7.2 added support for rhel6-style yum output
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# 0.7.2 Addes support for rhel6-style output (palli@opensource.is)
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# 0.7.3 Maintenance taken over by Christoph Anton Mitterer
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# Standard Nagios return codes
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@ -163,7 +184,7 @@ class YumTester:
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def check_returncode(self, returncode, output):
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"""Takes the returncode and output (as an array of lines)
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of the yum program execution and tests for failures, exits
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of the YUM program execution and tests for failures, exits
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with an appropriate message if any are found"""
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if returncode == 0:
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@ -174,7 +195,7 @@ class YumTester:
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elif returncode == 200:
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if "lock" in output[-2] or "another copy is running" in output[-2]:
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msg = "Cannot check for updates, " \
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+ "another instance of yum is running"
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+ "another instance of YUM is running"
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if self.no_warn_on_lock:
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end(OK, msg)
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else:
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@ -185,7 +206,7 @@ class YumTester:
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else:
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if not 'Loading "security" plugin' in output \
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or "Command line error: no such option: --security" in output:
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end(UNKNOWN, "Security plugin for yum is required. Try to " \
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end(UNKNOWN, "Security plugin for YUM is required. Try to " \
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+ "'yum install yum-security' and then re-run " \
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+ "this plugin. Alternatively, to just alert on " \
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+ "any update which does not require the security " \
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@ -282,7 +303,7 @@ class YumTester:
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raise ValueError
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except ValueError:
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end(UNKNOWN, "Error parsing package information, invalid package " \
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+ "number, yum output may have changed. Please make " \
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+ "number, YUM output may have changed. Please make " \
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+ "sure you have upgraded to the latest version of " \
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+ "this plugin. If the problem persists, then please " \
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+ "contact the author for a fix")
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@ -293,7 +314,7 @@ class YumTester:
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count = 0
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re_package_format = \
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re.compile("^.+\.(i[3456]86|x86_64|noarch)\s+.+\s+.+$")
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# This is to work around a yum truncation issue effectively changing
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# This is to work around a YUM truncation issue effectively changing
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# the package output format. Currently only very long kmod lines
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# are seen to have caused this so we stick to what we know for safety
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# and raise an unknown error on anything else for maximum security
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@ -349,7 +370,7 @@ class YumTester:
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break
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if not summary_line_found:
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end(WARNING, "Cannot find summary line in yum output. Please " \
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end(WARNING, "Cannot find summary line in YUM output. Please " \
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+ "make sure you have upgraded to the latest version " \
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+ "of this plugin. If the problem persists, please " \
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+ "contact the author for a fix")
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@ -358,7 +379,7 @@ class YumTester:
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number_security_updates = int(number_security_updates)
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number_total_updates = int(number_total_updates)
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except ValueError:
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end(WARNING, "Error parsing package information, yum output " \
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end(WARNING, "Error parsing package information, YUM output " \
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+ "may have changed. Please make sure you have " \
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+ "upgraded to the latest version of this plugin. " \
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+ "If the problem persists, the please contact the " \
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@ -464,7 +485,7 @@ def main():
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help="Does not distinguish between security and " \
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+ "non-security updates, but returns critical for " \
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+ "any available update. This may be used if the " \
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+ "yum security plugin is absent or you want to " \
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+ "YUM security plugin is absent or you want to " \
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+ "maintain every single package at the latest " \
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+ "version. You may want to use " \
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+ "--warn-on-any-update instead of this option")
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@ -486,7 +507,7 @@ def main():
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action="store_true",
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dest="no_cache_update",
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help="Run entirely from cache and do not update the " \
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+ "cache when running yum. Useful if you have " \
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+ "cache when running YUM. Useful if you have " \
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+ "'yum makecache' cronned so that the nagios " \
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+ "check itself doesn't have to do it, possibly " \
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+ "speeding up execution (by 1-2 seconds in tests)")
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@ -494,22 +515,22 @@ def main():
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parser.add_option( "--no-warn-on-lock",
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action="store_true",
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dest="no_warn_on_lock",
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help="Return OK instead of WARNING when yum is locked " \
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help="Return OK instead of WARNING when YUM is locked " \
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+ "and fails to check for updates due to another " \
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+ "instance running. This is not recommended from " \
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+ "the security standpoint, but may be wanted to " \
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+ "reduce the number of alerts that may " \
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+ "intermittently pop up when someone is running " \
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+ "yum interactively for package management")
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+ "YUM interactively for package management")
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parser.add_option( "--enablerepo",
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dest="repository_to_enable",
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help="Explicitly enables a reposity when calling yum. "
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help="Explicitly enables a reposity when calling YUM. "
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+ "Can take a comma separated list of repositories")
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parser.add_option( "--disablerepo",
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dest="repository_to_disable",
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help="Explicitly disables a repository when calling yum "
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help="Explicitly disables a repository when calling YUM "
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+ "Can take a comma separated list of repositories")
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parser.add_option( "-t",
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@ -564,3 +585,4 @@ if __name__ == "__main__":
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except KeyboardInterrupt:
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print "Caught Control-C..."
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sys.exit(CRITICAL)
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