5 CI Agents Hit Docker Hub's Rate Limit in 30 Minutes — Docker Registry & Hub

Five CI agents behind one NAT gateway shared a single public IP and burned through Docker Hub's anonymous pull limit (100 pulls / 6h) in 30 minutes — every build started failing with 'too many requests'. This covers registries: tags, digests, Docker Hub limits, private registries, and pull-through caching.

⏳ Timestamps:
0:00 - Cold open: 100 pulls per 6 hours per IP
0:23 - Intro
0:30 - What Is a Registry?
0:52 - Tags vs Digests
1:34 - Push Workflow
2:08 - Public vs Private Repos
2:48 - Rate Limits Explained
3:29 - Pull-Through Cache
3:46 - 100 pulls per 6 hours per IP
4:10 - The Fix
4:31 - ⚠ Gotcha: Running docker system prune -a on rate limit hit
4:46 - ⚠ Gotcha: Hardcoding passwords in Dockerfiles
4:59 - ⚠ Gotcha: Using :latest tag in production
5:13 - Rate Limit Header Monitoring
5:43 - Kubernetes ImagePullPolicy Interaction
6:01 - Debugging Guide
6:19 - Interview Questions
6:52 - FAQ
7:20 - Key Takeaways
7:38 - Next up
7:49 - Wrap-up

👉 Full article + code: https://thecodeforge.io/devops/docker-registry-hub/
⏭ Next up: Docker Security Best Practices

#docker #devops

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