set value for ASPNETCORE_ENVIRONMENT to docker-compose up cli command only

Question

If I want to provide custom value for ASPNETCORE_ENVIRONMENT to docker-compose up cli command how would I do that?

Is it possible to provide this through cli or I need to use docker-compose.yml file (this solution I would like to skip).

Kenan Güler · Accepted Answer · 2021-04-22 23:02:23Z

1

Unlike docker-compose run, docker-compose up does not provide this - unfortunately. Alternatively, you can make use of env_file for this:

services:
  webapi:
    image: aspnetcore-image
    env_file:
        - .env

By creating a file named .env (it can be named as desired) and placing it in the appropriate directory (here it is placed in the same directory as docker-compose.yml), docker-compose up will then export the respective env vars to the docker container.

answered Apr 22, 2021 at 23:02

Kenan Güler

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