docker-compose.yml

services:
  tailscale-app:
    image: tailscale/tailscale:latest
    hostname: couch-tailscale
    env_file: .env.tailscale-app
    volumes:
      - tailscale-data:/var/lib/tailscale
      - ${PWD}/ts-conf/ts-serve.json:/config/ts-serve.json:ro
      - /dev/net/tun:/dev/net/tun
    cap_add:
      - net_admin
      - sys_module
    restart: unless-stopped
  app:
    image: couchdb:3.4.2
    network_mode: service:tailscale-app
    depends_on:
      - tailscale-app
    env_file: .env.couchdb
    volumes:
        # The files' owner will be id:5984 when you launch the image.
        # Because CouchDB writes on-the-fly configurations into local.ini.
        # So when you want to perform git pull or change something, you have to change owners back.
        - couchdb-data:/opt/couchdb/data
        - ${PWD}/conf/local.ini:/opt/couchdb/etc/local.ini
    restart: unless-stopped
volumes:
  tailscale-data:
    driver: local
  couchdb-data:
    driver: local