Server-Side Policy and Protected Branches

Server-Side Policy and Protected Branches

This lesson deepens Git & Collaboration Workflows using the same subject areas emphasized by official documentation: Git official documentation: refs, branching, rebasing, hooks, signing, submodules, worktrees and repository policy. The goal is to turn Server-Side Policy and Protected Branches into a production skill: you should know the concept, the configuration surface, the safety controls, the operational checks, and the rollback path.

Documentation Coverage

• Core terms and object model for this topic.
• Configuration options, defaults, and lifecycle behavior from the docs.
• Security, reliability, and ownership boundaries.
• Validation steps before and after the change.
• Common failure modes and diagnostic signals.

Production Implementation Flow

1. Define the source of truth: Git, configuration, API, state file, or control plane.
2. Design the safest repeatable workflow, including dry-run or plan output where possible.
3. Attach CI/CD, policy, security, and peer-review gates.
4. Observe metrics, logs, events, or traces after the change.
5. Document rollback, escalation owner, and evidence for the change record.

git log --oneline --decorate --graph -20
git verify-commit HEAD
gh pr checks --watch
gh ruleset list

Mastery Standard

You understand Server-Side Policy and Protected Branches when you can explain it, configure it, test it, monitor it, and recover it under incident pressure without relying on undocumented manual steps.