Dockerfile Best Practices & Docker Security Reference — multi-stage, non-root, layer caching, secrets, distroless
🐳 Dockerfile Best Practices
Multi-stage builds (1/10th the size), non-root users, layer caching order, .dockerignore, secrets that don’t leak into history, distroless vs alpine vs slim, COPY vs ADD, ENTRYPOINT vs CMD, HEALTHCHECK, read-only filesystem, and image scanning.
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Watch as a Web Story
5 Docker Mistakes That Break Production — quick visual guide, 2 min
5 Docker Mistakes That Break Production — quick visual guide, 2 min
🔍 Free scanner: Docker Compose Security Checker — check your docker-compose.yml for security issues: exposed ports, missing user constraints, plain-text secrets, and more.
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