Munin is a network and system monitoring application that outputs graphs through a web interface. It comprises of a master server that gathers the output from the agents running on each of our hosts.
We will be configuring Munin on a server that has access to the OpenStack Compute environment hosts. Ensure this server has enough RAM, disk, and CPU capacity for the environment you are running. As a bare minimum in a test environment, it is possible to run this on a VM with 1vCPU, 1.5 GB of RAM, and 8 GB of disk space.
To set up Munin with OpenStack, carry out the following steps: