I'm proud to announce a new Nagios/Monitoring plugin: check_lxc.
As the name already tells you, this is a plugin to monitor Linux Containers (LXC). It needs to run on the LXC host and allows to check CPU, Memory, Swap usage of a container. The plugin also allows to check for an automatic boot of a container.
The work on this plugin already began several years ago, in 2013. After having recently added a CPU check I think the plugin is now "ready" to be used in the wild.
Back in 2013, when the plugin development was started, LXC was at version 0.8. I have taken extra precautions to keep compatibility between the LXC releases. As of today I can say that the plugin works from LXC 0.8 upwards.
Enough talk for now. Read the documentation of check_lxc, use the plugin and enjoy!