Dockerfile reference, Docker Documentation, 2024 (Docker) - This comprehensive guide covers all Dockerfile instructions, including ENV and ARG, with usage examples and details.
docker run, Docker Documentation, 2024 - Provides detailed information on running Docker containers, explaining how to use flags like -e and --env-file for configuration.
Best practices for building images, Docker Documentation, 2024 - Contains guidelines for creating efficient and secure Docker images, including handling sensitive information during the build process.
Docker in Action, Jeff Nickoloff, Stephen Kuenzli, 2019 (Manning Publications) - A practical guide to containerization, explaining how to use environment variables for configuration during image build and container runtime.