How do I configure environment variables in Docker?
An example of an AI chatbot conversation about configuring environment variables in Docker.
How do I configure environment variables in Docker?
You can configure environment variables in Docker using the -e flag in the docker run command or by using a .env file.
Can you show me an example of using a .env file?
Sure! Create a .env file with your variables, like DB_USER=user and DB_PASS=pass. Then, use --env-file .env when running your container.
What if I want to set default values for these variables?
You can set default values in your Dockerfile using the ARG instruction, and then use them in your ENV instruction.
Is there a way to override these variables at runtime?
Yes, you can override them by using the -e flag in the docker run command, which takes precedence over the values in the .env file.
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