compose.yaml

configs:
  ts-serve:
    content: |
      {"TCP":{"443":{"HTTPS":true}},
      "Web":{"$${TS_CERT_DOMAIN}:443":
          {"Handlers":{"/":
          {"Proxy":"http://127.0.0.1:8080"}}}},
      "AllowFunnel":{"$${TS_CERT_DOMAIN}:443":false}}

services:
# Make sure you have updated/checked the .env file with the correct variables. 
# All the ${ xx } need to be defined there.
  # Tailscale Sidecar Configuration
  tailscale:
    image: tailscale/tailscale:latest # Image to be used
    container_name: tailscale-${SERVICE} # Name for local container management
    hostname: ${SERVICE} # Name used within your Tailscale environment
    environment:
      - TS_AUTHKEY=${TS_AUTHKEY}
      - TS_STATE_DIR=/var/lib/tailscale
      - TS_SERVE_CONFIG=/config/serve.json # Tailscale Serve configuration to expose the web interface on your local Tailnet - remove this line if not required
      - TS_USERSPACE=false
      - TS_ENABLE_HEALTH_CHECK=true              # Enable healthcheck endpoint: "/healthz"
      - TS_LOCAL_ADDR_PORT=127.0.0.1:41234       # The <addr>:<port> for the healthz endpoint
      #- TS_ACCEPT_DNS=true # Uncomment when using MagicDNS
      - TS_AUTH_ONCE=true
    configs:
      - source: ts-serve
        target: /config/serve.json
    volumes:
      - ./config:/config # Config folder used to store Tailscale files - you may need to change the path
      - ./ts/state:/var/lib/tailscale # Tailscale requirement - you may need to change the path
    devices:
      - /dev/net/tun:/dev/net/tun # Network configuration for Tailscale to work
    cap_add:
      - net_admin # Tailscale requirement
    #ports:
    #  - 0.0.0.0:${SERVICEPORT}:${SERVICEPORT} # Binding port ${SERVICE}PORT to the local network - may be removed if only exposure to your Tailnet is required
    # If any DNS issues arise, use your preferred DNS provider by uncommenting the config below
    #dns: 
    #  - ${DNS_SERVER}
    healthcheck:
      test: ["CMD", "wget", "--spider", "-q", "http://127.0.0.1:41234/healthz"] # Check Tailscale has a Tailnet IP and is operational
      interval: 1m # How often to perform the check
      timeout: 10s # Time to wait for the check to succeed
      retries: 3 # Number of retries before marking as unhealthy
      start_period: 10s # Time to wait before starting health checks
    restart: always

  # ${SERVICE}
  application:
    image: ${IMAGE_URL} # Image to be used
    network_mode: service:tailscale # Sidecar configuration to route ${SERVICE} through Tailscale
    container_name: app-${SERVICE} # Name for local container management
    environment: # Varibles are delared in .env file.
      PUID: 1000
      PGI: 1000
      TZ: ${TZ}
      LISTEN_ADDR: ":8080"
      PUBLIC_URL: "${PUBLIC_URL:-http://localhost:8080}"
      DATABASE_PATH: "/data/artist-tracker.db"
      MUSICBRAINZ_CONTACT: "${MUSICBRAINZ_CONTACT:?Set MUSICBRAINZ_CONTACT in .env}"
      POLL_INTERVAL: "${POLL_INTERVAL:-6h}"
      TRUST_PROXY: "${TRUST_PROXY:-false}"
      SETUP_TOKEN_FILE: /run/secrets/setup_token
      APP_ENCRYPTION_KEY_FILE: /run/secrets/encryption_key
      SESSION_SECRET_FILE: /run/secrets/session_secret
      SPOTIFY_CLIENT_ID: "${SPOTIFY_CLIENT_ID:-}"
      SPOTIFY_CLIENT_SECRET: "${SPOTIFY_CLIENT_SECRET:-}"
      SPOTIFY_MARKET: "${SPOTIFY_MARKET:-US}"
    secrets:
      - setup_token
      - encryption_key
      - session_secret
    volumes:
      - ./${SERVICE}-data:/data
    security_opt:
      - no-new-privileges:true
    cap_drop:
      - ALL
    depends_on:
      tailscale:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "wget", "-q", "--spider", "http://127.0.0.1:8080/readyz"] # Check if ${SERVICE} process is running
      interval: 1m # How often to perform the check
      timeout: 10s # Time to wait for the check to succeed
      retries: 3 # Number of retries before marking as unhealthy
      start_period: 30s # Time to wait before starting health checks
    restart: always

secrets:
  setup_token:
    environment: SETUP_TOKEN
  encryption_key:
    environment: APP_ENCRYPTION_KEY
  session_secret:
    environment: SESSION_SECRET