Is it possible to set environment variables in a file?

[nmills3]

Is it possible to put the environment variables in some kind of file instead of using docker compose or a giant docker run command?

[itzg]

Yes it is. With a compose project, a .env file is automatically included if present or can be explicitly referenced:

https://docs.docker.com/compose/environment-variables/set-environment-variables/#substitute-with-an-env-file

With docker run you can reference env files with --env-file:

https://docs.docker.com/engine/reference/commandline/run/#env

[nmills3]

thanks