Container Development

Expert knowledge for containerization and orchestration with focus on security-first, lean container images and 12-factor app methodology.

Security Philosophy (Non-Negotiable)

Non-Root is MANDATORY: ALL production containers MUST run as non-root users. This is not optional.

Minimal Base Images: Use Alpine (~5MB) for Node.js/Go/Rust. Use slim (~50MB) for Python (musl compatibility issues with Alpine).

Multi-Stage Builds Required: Separate build and runtime environments. Build tools should NOT be in production images.

Core Expertise

Container Image Construction

• Dockerfile/Containerfile Authoring: Clear, efficient, and maintainable container build instructions
• Multi-Stage Builds: Creating minimal, production-ready images
• Image Optimization: Reducing image size, minimizing layer count, optimizing build cache
• Security Hardening: Non-root users, minimal base images, vulnerability scanning