Deploying with Nagios

The nagios and nrpe charms from the charm store can be added to a deployment to test the actual nagios checks. After deploying the two charms, add the relationships between nrpe and the desired component(s) to monitor and then between nrpe and nagios. First add the extra charms:

juju deploy nagios
juju deploy nrpe

The nagios charm is known to fail the install hook due to a missing ‘apt-get update’. To resolve this:

juju run --service nagios "apt-get update"
juju resolved --retry nagios/0

Use ‘juju status’ to monitor for a successful nagios deployment. Then add the relationships:

juju add-relation nrpe ci-airline-bsb-worker
juju add-relation nrpe nagios

Now find the nagios password:

juju ssh nagios/0 sudo cat /var/lib/juju/nagios.passwd

Use ‘juju status’ to find the public-address of the nagios instance, then navigate to ‘http://<public-address>/nagios3’ with a username of ‘nagiosadmin’ and the password from above.