docker-data-environments

Docker for data engineering environments — multi-stage Dockerfiles for dbt/Spark/Airflow images, BuildKit layer caching (--mount=type=cache), private registries (ghcr.io/Harbor), docker buildx multi-platform builds, Docker Compose local data stacks (Spark+Airflow+Kafka+MinIO+Postgres), BuildKit secrets for private PyPI, security hardening (non-root user, slim base images, read-only FS), CI/CD with GitHub Actions…