The Agent Skills Directory

[EXTERNAL_DOWNLOADS]: The skill downloads binaries and library files from well-known and official sources.
Fetches Apache Spark binaries from downloads.apache.org.
Downloads Java connectors (Iceberg, AWS SDK) from Maven Central (repo1.maven.org).
Retrieves Airflow constraints from the official Apache Airflow GitHub repository.
[COMMAND_EXECUTION]: The provided Dockerfile templates execute shell commands to configure the environment.
Uses curl and tar to install system binaries.
Uses pip and apt-get to manage dependencies within the container images.
Implements docker buildx for multi-platform image building.
[CREDENTIALS_UNSAFE]: The Docker Compose template includes default credentials for local development.
Uses standard defaults like minioadmin/minioadmin and airflow/airflow for local service accessibility.
Uses environment variable placeholders (e.g., ${FERNET_KEY}) for sensitive production configurations, which is a recommended practice.
[SAFE]: The skill explicitly promotes security hardening practices.
Recommends the use of non-root users to limit container privileges.
Demonstrates the use of Docker BuildKit secrets to prevent sensitive tokens from being baked into image layers.
Encourages minimal base images and read-only filesystems to reduce attack surfaces.

docker-data-environments