check_pascom

check_pascom is a Nagios (Icinga) check, written in go, to check the pascom cloudstack. It connects via ssh to the target system, performs automatically a number of helthchecks and returns an overall state plus multiline details.

Installation

In order to install check_pascom at your Nagios host you can either compile the source code or use the precompiled binary for linux out of the bin/linux_amd64 directory of this repository and copy it to your Nagios plugin directory.

Prepare ssh keys

check_pascom connects to the pascom cloudstack using ssh keys. Three steps are nescessary:

Nagios host

Login via ssh to your Nagios host. Become the user which performs the checks (e.g. nagios):

su nagios -s /bin/bash

Check if this user has already a public ssh key:

cat ~/.ssh/id_rsa.pub

If so, copy it to your clipboard. If not, create one:

ssh-keygen

pascom cloudstack

Login as admin on the cloudstack via ssh and become root.

Copy the ssh public key (from the previous step) to the file /root/.ssh/authorized_keys on the pascom cloudstack.

Nagios host (again)

Now you should be able to login via ssh to the cloudstack as root without a password. Test it with:

ssh root@my.cloudstack.hostname

If this works close the shell again and execute check_pascom on the Nagios host:

check_pascom -host my.cloudstack.hostname

You should get something like:

OK: All checks are ok
Memory is OK
Swap is OK
Ramdisk / is OK
Disk /SYSTEM is OK
Load is OK
Container pg is OK
Container controller is OK
Container mem controller is OK
Container mem pg is OK
Container mem proxy is OK
...

Usage

As check_pascom directly for help:

check_pascom -h