This plugin monitors the need for reboot on Ubuntu/Debian systems. It also shows the reason reboot is required. Should work on Ubuntu 8.04 and newer. Possibly even older systems if you install the update-notifier-common package. Other dists are unknown and untested.
Tested platforms:
Ubuntu 16.04 LTS
Currently this plugin return status
| Status | Message |
|---|---|
| OK | when no reboot is required |
| WARNING | when reboot is required. Reason for the rebbot is shown in the message |
| CRITICAL | when reboot has been required for more than 2 days (48 hours) |
| UNKNOWN | when the plugin is unable to get any status |
Compile
- Make sure you have Go installed
- Run Go build
Install
Copy the binary (nrpe-rebootrequired) to your Nagios plugin folder. On Ubuntu this is typically located at /usr/lib/nagios/plugins. Make sure it's executable. You can run chmod +x nrpe-rebootrequired to make it executable.
Add a command to your nagios configuration. On Ubuntu systems you usually add commands to /etc/nagios/nrpe_local.cfg. A command has the syntax:
command[<Commandname>]=<Executable>
For this check you could add the following command:
command[check_rebootrequired]=/usr/lib/nagios/plugins/nrpe-rebootrequired
Make sure to restart the nagios/nrpe service before you use this command. On Ubuntu you can execute /etc/init.d/nagios-nrpe-server restart
On your Nagios/OP5 server, create a new check of the type check_nrpe and enter check_rebootrequired as the command.
TODO
- Implement a cleaner way to handle messages
- Show for how long reboot benn waiting
- Parameterize timespan before status is set to CRITICAL