dnsmasq-webui/docker-compose.test.yml

# Run the app with real dnsmasq and several DHCP clients so hosts/leases are real.
# Some clients also make periodic DNS requests so the DNS cache and logs show activity.
# Prepare mount: ./scripts/prepare-test-mount.sh [--clear | --reset-managed | --minimal-conf | --prepare-only | ...]
# Or set TESTDATA_MOUNT to override the data volume (default: ./testdata-mount).
# Set TEST_DNSMASQ_CONF to override main config path (default: /data/dnsmasq-test.conf; use /data/dnsmasq-test-minimal.conf for minimal).
#
# No systemd in container (dnsmasq runs as a process from entrypoint, like most dnsmasq images).
# StatusShowCommand/LogsCommand use ps so the Service status / Recent logs sections show something
# (process info). On a host with systemd you'd use systemctl status dnsmasq and journalctl instead.
# cap_add NET_ADMIN for dnsmasq.
#
# Networks: testnet 172.28.0.0/16 so dnsmasq can hand out 172.28.0.10–50.
services:
  app:
    build:
      context: .
      args:
        DNSMASQ_VERSION: ${DNSMASQ_VERSION:-latest}
    ports:
      - "8080:8080"
    healthcheck:
      test: ["CMD", "curl", "-f", "-s", "http://localhost:8080/healthz/ready"]
      interval: 30s
      timeout: 5s
      start_period: 5s
      retries: 3
    cap_add:
      - NET_ADMIN
    environment:
      DNSMASQ_CONF: ${TEST_DNSMASQ_CONF:-/data/dnsmasq-test.conf}
      Dnsmasq__MainConfigPath: ${TEST_DNSMASQ_CONF:-/data/dnsmasq-test.conf}
      Dnsmasq__ManagedFileName: zz-dnsmasq-webui.conf
      # No systemd in container: restart by killing and re-running dnsmasq (same as entrypoint.sh). Config path must match DNSMASQ_CONF/MainConfigPath.
      Dnsmasq__RestartCommand: "pkill -x dnsmasq || true; sleep 1; dnsmasq --test --conf-file=${TEST_DNSMASQ_CONF:-/data/dnsmasq-test.conf} && dnsmasq --conf-file=${TEST_DNSMASQ_CONF:-/data/dnsmasq-test.conf}"
      Dnsmasq__ReloadCommand: "pkill -HUP -x dnsmasq"
      Dnsmasq__StatusCommand: "pgrep -x dnsmasq"
      # Simulated systemctl status + real logs (dnsmasq logs to /data/dnsmasq.log via log-facility in dnsmasq-test.conf)
      Dnsmasq__StatusShowCommand: "/app/dnsmasq-status.sh"
      Dnsmasq__LogsCommand: "tail -n 100 /data/dnsmasq.log 2>/dev/null || echo '(no log file yet)'"
      # Persist runtime log level across container restarts
      RuntimeOverrides__FilePath: "/data/appsettings.Overrides.json"
    volumes:
      - ${TESTDATA_MOUNT:-./testdata-mount}:/data
    networks:
      testnet:
        ipv4_address: 172.28.0.2

  # DHCP only; keeps running with lease.
  dhcp-client:
    image: alpine:3.20
    command: ["sh", "-c", "sleep 5 && exec udhcpc -i eth0 -f -n"]
    networks:
      testnet: {}
    depends_on:
      app:
        condition: service_healthy

  # DHCP + periodic DNS lookups (every 20s) so DNS cache/logs show activity.
  dhcp-client-dns-a:
    image: alpine:3.20
    command:
      - sh
      - -c
      - |
        udhcpc -i eth0 -f -n &
        sleep 10
        while true; do
          nslookup google.com 2>/dev/null || true
          nslookup cloudflare.com 2>/dev/null || true
          sleep 20
        done
    networks:
      testnet: {}
    depends_on:
      app:
        condition: service_healthy

  # DHCP + periodic DNS lookups (every 45s); different interval for variety.
  dhcp-client-dns-b:
    image: alpine:3.20
    command:
      - sh
      - -c
      - |
        udhcpc -i eth0 -f -n &
        sleep 10
        while true; do
          nslookup example.com 2>/dev/null || true
          nslookup github.com 2>/dev/null || true
          sleep 45
        done
    networks:
      testnet: {}
    depends_on:
      app:
        condition: service_healthy

  # Third DHCP-only client so the leases table has more entries.
  dhcp-client-2:
    image: alpine:3.20
    command: ["sh", "-c", "sleep 8 && exec udhcpc -i eth0 -f -n"]
    networks:
      testnet: {}
    depends_on:
      app:
        condition: service_healthy

networks:
  testnet:
    driver: bridge
    ipam:
      config:
        - subnet: 172.28.0.0/16
          gateway: 172.28.0.1