DevOps and Deployment Guides
3 practical guides on devops and deployment, including “GitHub Actions SSH Deploy: Permission Denied” and “Docker Multi-Stage Builds for Node.js Apps”. Each article explains the problem, shows the fix with working code and points out what to watch for. New guides are added regularly, newest first.
GitHub Actions SSH Deploy: Permission Denied
GitHub Actions SSH deploy failing with Permission denied (publickey)? Here is the real cause -- a corrupted key -- and the fix that actually works.
Docker Multi-Stage Builds for Node.js Apps
Learn how Docker multi-stage builds for Node.js shrink images from 1 GB to under 150 MB, with a production Dockerfile and CI caching tips you can copy.
Zero-Downtime Node.js Deployments: A Guide
A practical guide to zero-downtime Node.js deployments using rolling restarts, health checks, and graceful shutdown — no dropped requests.
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