Docker Compose nel file .env

Estrarre il file .env da un file Docker Compose esistente

File Docker Compose:

Estrai .env

# web
PORT=3000
DEBUG=true

# db
POSTGRES_USER=admin
POSTGRES_PASSWORD=secret

Docker Compose aggiornato:

services:
  web:
    environment:
      - PORT=${PORT}
      - DEBUG=${DEBUG}
  db:
    environment:
      - POSTGRES_USER=${POSTGRES_USER}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}