DevLog: The Production Panic & The Perfect Hotfix Protocol

It’s 4:55 PM on a Friday. You’ve just closed your laptop. Then, the Slack notification sound triggers.

Release Manager: "We have a P0 in PROD. The Login page is crashing. We need a hotfix tag ASAP."

We’ve all been there. The adrenaline spikes, and suddenly you need to navigate the delicate dance of fixing a bug without breaking anything else.

Today, I’m documenting our exact Hotfix Scenario workflow. This is how we go from a critical failure to a tagged release, ensuring our Infra Team and Disaster Recovery (DR) environments stay in sync.

---

The Scenario

The Bug: A null error in the login controller.

The Goal: Patch main, deploy to Production, and ensure dev, qa, ppd, and dr are updated so the bug doesn't come back in the next release.

Here is the step-by-step Git survival guide.

1. The Setup (Branch from Main)

Rule #1 of a hotfix: Always cut from the stable source of truth. We aren't branching from dev; we are branching from main.

Bash

# Get the latest stable code
git checkout main
git pull origin main

# Create the panic-branch
git checkout -b hotfix/login-crash

2. The Fix

I find the null pointer, patch it, and verify it locally. Once I'm confident, I commit.

Bash

git commit -am "Fix null error in login controller"

3. The Push

Time to get this into the remote repository so the team can see it.

Bash

git push origin hotfix/login-crash

4. Merge & Tag (The Critical Step)

Once the PR is approved (even in a panic, get a code review!), we merge it back to main. The Release Manager is waiting for a specific tag to trigger the "Secure Build."

Bash

git checkout main
git merge hotfix/login-crash

# Tagging is the trigger for Prod deployment
git tag -a v2.3.1 -m "Login hotfix"
git push origin main --tags

At this exact moment, our CI/CD Automation kicks in. The tag v2.3.1 triggers the Production Deploy pipeline.

5. The "Back-Merge" (Don't Forget This!)

This is where many teams fail. If you fix it in main but forget the lower environments, you will overwrite this fix in the next release cycle. We have to propagate the fix everywhere, including our Disaster Recovery (dr) branch.

Bash

# Update Dev
git checkout dev && git merge hotfix/login-crash && git push

# Update QA
git checkout qa && git merge hotfix/login-crash && git push

# Update Pre-Prod
git checkout ppd && git merge hotfix/login-crash && git push

# Update Disaster Recovery (Crucial for Infra Team)
git checkout dr && git merge hotfix/login-crash && git push

---

Behind the Scenes: The Automation Matrix

While I’m sipping water and recovering from the adrenaline rush, our CI/CD pipelines are doing the heavy lifting based on the triggers we set up.

Here is how our triggers map to actions:

---

Conclusion

The Login page is back up. The Release Manager is happy. The Infra Team confirms that the dr branch is synced and ready for any worst-case scenarios.

Handling a hotfix isn't just about writing code fast; it's about following a protocol that ensures stability across the entire ecosystem.

Keep calm and git push on.

---