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OpenStack Cloud Computing Cookbook Second Edition by Cody Bunch, Kevin Jackson

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Monitoring OpenStack services with Nagios

Nagios is an open source, mature, and robust network and system monitoring application. It is comprrised of a Nagios server and a number of plugins, or checks. Plugins can be run either locally to the Nagios server, or as we will be installing them, with the NRPE (Nagios Remote Plugin Execution) plugin. The NRPE plugin allows us to run agent-like checks on remote systems.

Getting ready

We will be configuring Nagios on a server that has access to our OpenStack Compute environment hosts with IP address 172.16.0.212. 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 ...

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