---
version: "3"

services:
  homeassistant_instance:
    image: homeassistant/home-assistant:2021.2.3
    container_name: homeassistant_instance
    hostname: homeassistant_instance
    restart: always

    volumes:
      - /etc/localtime:/etc/localtime:ro
      - ./etc/config:/config

    ports:
      - "8123:8123"
...