Docker Development Skill

Commands

• •Start: docker-compose up -d --build (Detached mode, rebuild images).
• •Logs: docker-compose logs -f [service_name] (Follow logs).
• •Stop: docker-compose down.
• •Clean: docker-compose down -v (Removes volumes - WARNING: Deletes DB data!).

Patterns

• •Secrets: Files like kalshi.key are mounted as volumes. NEVER modify the Dockerfile to COPY secrets in.
• •Network: Services communicate via service names (e.g., db, redis), not localhost.
• •Database: The database is available at db:5432.

Debugging

• •If a container crashes immediately, checks logs: docker-compose logs [service].
• •To inspect a running container: docker exec -it [container_id] /bin/bash.