COA Series

The Certified OpenStack Administrator (COA) is the only professional certification offered by the OpenInfra Foundation, and it is performance-based — you are given a live OpenStack cloud and asked to do the work from the CLI and the Horizon dashboard.

This page indexes the posts in our COA study series. Each part maps to one of the exam’s weighted knowledge domains, and the lab is built on OpenStack 2026.1 “Gazpacho” so the commands and screenshots stay current.

Start with the Series Roadmap & Lab for the exam domains, weights, and the reading order.