Docker compose file to setup a basic nextcloud instance that runs on postgres.

docker-compose.yaml

version: "3.8"

volumes:
  nc_data:
  nc_conf:

services:
  db:
    image: postgres
    restart: always
    environment:
      POSTGRES_PASSWORD: supersecret123
      POSTGRES_USER: root
      POSTGRES_DB: development
    volumes:
      - nc_data:/var/lib/postgresql/data
    ports:
      - 5432:5432
  nextcloud-app:
    image: nextcloud
    restart: always
    ports:
      - 8080:80
    links:
      - db
    volumes:
      - nc_conf:/var/www/html
    environment:
      POSTGRES_HOST: db
      POSTGRES_PASSWORD: supersecret123
      PASSWORD_USER: root