Managing environment configurations in Docker Compose

Managing environment configurations in Docker Compose can be streamlined by using different .env files for various environments. Here's a guide on how to set this up effectively.

Keep both the docker-compose.yaml file .env files in same directory

docker-compose.yaml

version: "3"
services:
 demo:
 image: vinsdocker/sel-app:${VERSION}
 ports:
 - 80:80

dev.env

VERSION=v2

qa.env

VERSION=v3

The command to use qa.env file while running docker-compose file:

docker-compose --env-file qa.env up

The command to use dev.env file while running docker-compose file:

docker-compose --env-file de.env up