What are the best practices for using environment variables in Docker?
Some best practices include using a .env file for local development, avoiding hardcoding sensitive data, and using Docker secrets for sensitive information.
Can you explain how to use a .env file with Docker?
Sure! You can create a .env file in your project directory and define your variables there. Then, use the --env-file option when running your Docker container.
What about managing sensitive information?
For sensitive information, it's best to use Docker secrets or environment variables that are not stored in your codebase.
Are there any tools to help manage these environment variables?
Yes, tools like Docker Compose can help manage environment variables more easily, and there are also third-party tools like Vault for secret management.
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