59 lines
3.3 KiB
Markdown
59 lines
3.3 KiB
Markdown
# Check container upgrade
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Monitoring plugin to check if containers are upgradable. By default all running container are checked.
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Checks are done by running Icinga/Nagios compatible check plugins inside containers. These plugins are listed inside the `CHECK_PLUGINS` associative array (on top of the file) and by default, the following plugin are declared:
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- `/usr/lib/nagios/plugins/check_apt`: for Debian based image, provide by the `monitoring-plugins-basic` debian package
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- `/usr/lib/nagios/plugins/check_apk`: for Alpine based image, see [project](https://gitea.zionetrix.net/bn8/check_apk) for install instructions
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**Note:** The first plugin detected as installed will be used.
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## Installation
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```
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git clone https://gitea.zionetrix.net/bn8/check_container_upgrade.git /usr/local/src/check_container_upgrade
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mkdir -p /usr/local/lib/nagios/plugins
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ln -s /usr/local/src/check_container_upgrade/check_container_upgrade /usr/local/lib/nagios/plugins/
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echo "nagios ALL=NOPASSWD: /usr/local/lib/nagios/plugins/check_container_upgrade" > /etc/sudoers.d/nagios-containers
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chmod 0400 /etc/sudoers.d/nagios-containers
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echo "command[check_container_upgrade]=sudo /usr/local/lib/nagios/plugins/check_container_upgrade" > /etc/nagios/nrpe.d/containers.cfg
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service nagios-nrpe-server reload
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```
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## Usage
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```
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Usage : check_container_upgrade [-d] [-E /path/to/engine] [container1,...]
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-E [path] Force a specific engine (possible values: auto docker podman,
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default: auto)
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-x [container] Exclude specified container (could be repeat)
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-M [integer] Max number of container checks to run in parallel
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(default: 4, 0=no limit)
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-f [docker-compose.yml] To check upgrade on docker compose project, specified the path of the
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docker-compose.yml file
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-b|--build|--rebuild Trigger container build if upgrade detected (only possible if a docker
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compose file if provided)
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--rebuild-path Specify rebuild data directory path (default: /var/log/check_container_upgrade)
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--rebuild-cron Start in rebuild cron mode: rebuild containers detected and mark to be
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rebuilt on status file.
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--deploy-cron Start in deploy cron mode: deploy containers known as rebuilt in status
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file.
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-d Debug mode
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-l Log file
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-C Console logging (even if log file is specify)
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-X Enable bash tracing (=set -x)
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-h Show this message
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```
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## Copyright
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Copyright (c) 2024 Benjamin Renard <brenard@zionetrix.net>
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## License
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This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 3 as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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