Docker撰写无法识别'env_file'

Question

I am trying to run docker-compose up with the following configuration:

php:
    image: php:7.0-fpm
    expose:
        - 9000
    links:
        - nginx

nginx:
    env_file: .env
    image: nginx:latest
    ports:
        - 80:80
        - 433:433
    environment:
        - NGINX_HOST: ${APP_URL}

mysql:
    env_file: .env
    image: mysql:latest
    ports:
        - 3306:3306
    environment:
        - MYSQL_ROOT_PASSWORD: ${DB_PASSWORD}
        - MYSQL_DATABASE: ${DB_DATABASE}
        - MYSQL_USER: ${DB_USERNAME}
        - MYSQL_PASSWORD: ${DB_PASSWORD}
        - MYSQL_ALLOW_EMPTY_PASSWORD: no

I have an .env file in the same directory and am able to test the variable in the shell, but docker doesn't seem to load the .env .

WARNING : The APP_URL variable is not set. Defaulting to a blank string.

WARNING : The DB_PASSWORD variable is not set. Defaulting to a blank string.

WARNING : The DB_DATABASE variable is not set. Defaulting to a blank string.

WARNING : The DB_USERNAME variable is not set. Defaulting to a blank string.

ERROR : Validation failed in file './docker-compose.yaml'

UPDATE

I just changed the env_file value to point to a non-existing file and no errors are thrown. It seems like docker is completely ignoring the option.

Answer 1

像许多其他版本相关的问题一样，更新到docker -compose的 v1.7.1解决了这个问题，就像一个魅力！

Answer 2

Suggest you to use Volumes also.. otherwise when the DB container is deleted or upgraded.. you will loose all you DB data. :) Do not pass ENV with sensitive data to the NGINX.. You missing also the link in the FPM to the DB.

Answer 3

I got this issue because I wasn't running $docker-compose up from the same directory as my .env and docker-compose.yml file. The command can still find the docker-compose.yml file, through a search, but it doesn't also search that location for the .env file.