Create 2 docker containers with pihole in the Container-Station on a QNAP NAS

Create 2 docker containers with pihole in the Container-Station on a QNAP NAS.txt

An example to create 2 docker containers with pihole in the Container-Station on a QNAP NAS

Details about the environment variables in the pihole docker image can be found here:
https://github.com/pi-hole/docker-pi-hole#environment-variables

Details about the qnet network driver can be found here:
https://qnap-dev.github.io/container-station-api/qnet.html#docker-compose

docker-compose.yml

version: '2'
services:
  pihole-01:
    image: pihole/pihole:latest
    # so we can make an IP assignment in DHCP, we set a fixed MAC address
    mac_address: 01:02:03:04:05:06
    environment:
      # setting a timezone
      TZ: "Europe/Berlin"
      # setting a password
      WEBPASSWORD: "password"
      # setting of 2 secure, censorship-free and non-logging DNS servers
      DNS1: "46.182.19.48"
      DNS2: "194.150.168.168"
      # The feature "Conditional forwarding" is set and configured
      CONDITIONAL_FORWARDING: "true"
      CONDITIONAL_FORWARDING_IP: "192.168.1.1"
      CONDITIONAL_FORWARDING_DOMAIN: "lan"
      # we set an virtual host so we can reach the admin panel via the hostname 
      VIRTUAL_HOST: "docker-pihole-01.lan"
    volumes:
      # set two mount points to store the configuration in separate folders on the NAS
      - /share/Docker/docker-pihole-01/etc-pihole:/etc/pihole
      - /share/Docker/docker-pihole-01/etc-dnsmasq.d:/etc/dnsmasq.d
    networks:
      # assign the container to the qnet-DHCP-network
      - qnet-dhcp
    restart: unless-stopped

  pihole-02:
    image: pihole/pihole:latest
    # so we can make an IP assignment in DHCP, we set a fixed MAC address
    mac_address: 07:08:09:0a:0b:0c
    environment:
      # setting your timezone
      TZ: "Europe/Berlin"
      # setting a password
      WEBPASSWORD: "password"
      # setting of 2 secure, censorship-free and non-logging DNS servers
      DNS1: "46.182.19.48"
      DNS2: "194.150.168.168"
      # The feature "Conditional forwarding" is set and configured
      CONDITIONAL_FORWARDING: "true"
      CONDITIONAL_FORWARDING_IP: "192.168.1.1"
      CONDITIONAL_FORWARDING_DOMAIN: "lan"
      # we set an virtual host so we can reach the admin panel via the hostname 
      VIRTUAL_HOST: "docker-pihole-02.lan"
    volumes:
      # set two mount points to store the configuration in separate folders on the NAS
      - /share/Docker/docker-pihole-02/etc-pihole:/etc/pihole
      - /share/Docker/docker-pihole-02/etc-dnsmasq.d:/etc/dnsmasq.d
    networks:
      # assign the container to the qnet-DHCP-network
      - qnet-dhcp
    restart: unless-stopped

# here the network driver is configured.
networks:
  qnet-dhcp:
    driver: qnet
    ipam:
      driver: qnet
      options:
        iface: "eth0"