The Telemetry module is similar to a stats collector. It collects various types of data from different components and systems. The Telemetry module gets data about CPU and network utilization, which in turn is helpful for fine-tuning the operating circumstances. It makes use of the REST API for reading or writing these stats. Users can also create plugins for custom collection of metered data.
In this section, we will see how to install the Telemetry module, known as ceilometer, on the controller node.
We will install MongoDB and create a database, and then we will create the service credentials for it and the API endpoints, so that we can install the Telemetry module. The steps are as follows:
Install the MongoDB package:
apt-get install mongodb-serverEdit the
/etc/mongodb.conffile and make the following changes:Set the
bind_ipkey to the IP address of the controller node management network:bind_ip...