So, we use Nagios here, and need to link it in to Rancher.
Since Rancher has a good authenticated API, what I would really like to have is a check_rancher Nagios plugin that would return the health of the cluster. Possibly, it should take an Environment name as a parameter, or the API endpoint URL. It should verify disk space remaining on hosts, host availability and host CPU/memory usage, with configurable thresholds.
Nobody seems to have made one of these yet… I may end up doing it myself (can’t be that difficult) but don’t want to end up reinventing the wheel.
Any other Nagios users out there?