How can I use .env files in Docker?
An example of an AI chatbot conversation about using .env files in Docker for configuration.
How can I use .env files in Docker?
You can use .env files in Docker to set environment variables for your containers. Just create a .env file with your variables.
Can you show me an example of a .env file?
Sure! A simple .env file might look like this:
DB_HOST=localhost
DB_USER=root
DB_PASS=password
How do I reference these variables in my Dockerfile?
You can reference them in your Dockerfile using the ARG and ENV instructions. For example:
ARG DB_HOST
ENV DATABASE_HOST=$DB_HOST
What if I want to use multiple .env files?
You can specify multiple .env files by using the --env-file option when running docker run. Just list them like this:
docker run --env-file .env --env-file .env.production your_image
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