Using Docker Compose environment variables in Dockerfile

Docker Engine Compose
1

Is it possible to use the environment variables defined in docker-compose.yaml in a Dockerfile?

Example

docker-compose.yaml:

my:
…environment:
…MY_PATH=/foo/bar

Dockerfile:

RUN mkdir ${MY_PATH}

2

Use environment to add environment variables. Alternatively add variables from a file env_file.
https://docs.docker.com/v1.8/compose/yml/#environment

3

Tou can do that with ARG in Dockerfile and args in docker-compose.yml. Please check https://docs.docker.com/compose/compose-file/#args