CAIOHOBORGHI
Environment variable using docker-compose is always null
How to use environment variables with docker without using phoenix?
With Phoenix it works but with only elixir is always null.
Marked As Solved
NobbZ
This runs mix during build time of the container. At that point in time docker-compose has not yet set the environment.
You want to use CMD or ENTRYPOINT depending on your exact needs.
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stefanchrobot
It works the same. Just make sure you’re not fetching the ENV variables in config/config.exs or config/prod.exs - those are evaluated at build time. Either use config/runtime.exs or read in the app.
stefanchrobot
Last Post!
CAIOHOBORGHI
Yeah, this is the best answer, with it I don’t even need to use the args on docker-compose.
Thank you!
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