This document discusses using CI/CD and OpenStack cloud to automate development and operations processes. It outlines building a CI/CD infrastructure with OpenStack, including using an OpenStack cloud plugin to autoscale Jenkins slaves on demand. It also describes automating the provisioning and destruction of staging environments in OpenStack using Heat and Ansible to integrate with GitLab for merge request testing. The results showed improvements like continuous delivery, isolated ephemeral staging environments, faster and more reliable releases, and automatic scaling of resources. Challenges mentioned include scaling times in OpenStack and supporting non-containerized builds.