How to use GitHub Copilot Coding Agent as a practical tool for DevOps automation. It explains how the agent works (assign an issue, get a ready-to-review PR), walks through the setup process including the setup workflow, custom instructions, and first task assignment, and then covers six real-world DevOps use cases: fixing broken CI/CD pipelines, enhancing Infrastructure as Code with Terraform, remediating security vulnerabilities, keeping documentation in sync automatically, boosting test coverage on autopilot, and running security campaigns at scale. The article also covers extending the agent with MCP servers, custom agents, hooks, skills, and scheduled maintenance workflows.