monitor

Nagios monitoring and continuous testing.

The monitor node provides a nagios control panel that will give you a view into the health and status of all the servers and all the services. It will also spam you with alerts if something goes down.

Topology

Currently, you can have zero or one monitor nodes defined. It is required that the monitor be on the webapp node. It was not designed to be run as a separate node service.

Configuration

nagios.environments: By default, the monitor node will monitor all servers in all environments. You can optionally restrict the environments to the ones you specify.

For example:

{
  "nagios": {
    "environments": ["unstable", "production"]
  }
}

Access nagios web

To open the nagios control panel:

workstation$ leap open monitor

This will open a web browser window with the appropriate URL, including the nagios username and password.

If the URL does not open because of HSTS or DNS problems, pass the --ip option to leap.

If you are using an older version of leap command that doesn’t include leap open, you can determine the nagio parameters manually:

Step 1. find the domain:

workstation$ export DOMAIN=$(leap ls --print webapp.domain monitor | grep . | cut -f3 -d' ')

Step 2. find the username:

workstation$ export USERNAME="nagiosadmin"

Step 3. find the password:

workstation$ export PASSWORD=$(grep nagios_admin_password secrets.json | cut -f4 -d\")

Step 4. put it all together:

workstation$ sensible-browser "https://$USERNAME:$PASSWORD@$DOMAIN/nagios3"