Allow list of files for env_file setting in docker_container

[mihav]

SUMMARY

docker-compose can fetch environment variables from multiple files, specified as list:

  name:
    container_name: name
    image: /path/to/image
    env_file:
      - /path/environment1.env
      - /path/environment2.env

However, this does not work with docker_container module. When specifying more than one env file, we get configuration error "file does not exist". I have environment settings split into multiple env files and only include relevant env for each container, however sometimes container must have access to variables located in multiple env files. This is currently not possible without dirty hacks with docker_container module.

ISSUE TYPE

• Feature Idea

COMPONENT NAME

docker_container module

ADDITIONAL INFORMATION

Example playbook:

  - name: Create container
    community.docker.docker_container:
      name: name
      image: /path/to/image
      env_file:
        - /path/environment1.env
        - /path/environment2.env