How to pass environment variable to docker-compose up

Question

I am trying to run a container. I already have the image uploaded to private Docker registry. I want to write a compose file to download and deploy the image. But I want to

Answer 1

In your docker-compose.yml file add

env_file:
  - .env_file

to your db service where .env_file is your .env file (change its name accordingly).

version: '3'
services:
   db:
    #build: k-db
    user: "1000:50"
    volumes:
      - /data/mysql:/var/lib/mysql
    container_name: k-db
    env_file:
      - .env_file
    environment:
      - MYSQL_ALLOW_EMPTY_PASSWORD=yes
    image:  XX:$KB_DB_TAG_VERSION
    image: k-db
    ports:
      - "3307:3306"