docker-patterns

Docker and Docker Compose patterns for local development, multi-service orchestration, and container security. Docker and Docker Compose best practices for containerized development. Services in the same Compose network resolve by service name: - Covers multi-stage Dockerfiles with dev, build, and production targets; Docker Compose configuration for web app stacks with PostgreSQL, Redis, and Mailpit; and override files for environment-specific settings - Includes service discovery via container networking, custom network isolation, and volume strategies (named volumes, bind mounts, anonymous volumes) for data persistence and hot reload - Provides container hardening practices: non-root users, capability dropping, read-only filesystems, and secret management via environment variables and Docker secrets - Offers debugging commands for logs, container inspection, network troubleshooting, and resource monitoring; documents anti-patterns like running as root, using latest tags, and storing data without volumes - Setting up Docker Compose for local development - Designing multi-container architectures - Troubleshooting container networking or volume issues - Reviewing Dockerfiles for security and size - Migrating from local dev to containerized workflow