装好Pi-Hole之后才发现，无法屏蔽YouTube广告……

安装Pi-Hole的过程比较简单，唯一要注意的是不要改变80端口。pihole-stack.yml内容如下：

version: "3.7"

 services:
   pihole:
     image: pihole/pihole:v4.4
     ports:
       - "53:53/tcp"
       - "53:53/udp"
       - "67:67/udp"
       - "80:80/tcp"
       - "3443:443/tcp"
     volumes:
       - piholeconfig:/etc/pihole/
     environment:
       TZ: 'America/Los_Angeles'
       WEBPASSWORD: "${WEBPASSWORD}"
       ServerIP: "${SERVERIP}"
       DNS1: '208.67.222.222'
       DNS2: '208.67.220.220'
     dns:
       - 127.0.0.1
       - ${DNSIP}
     deploy:
       replicas: 1

 volumes:
   piholeconfig:
     driver: local
     driver_opts:
       type: "nfs4"
       o: "addr=${PIHOLE_NFS_SERVER},rw"
       device: ":/pihole"

首次尝试时使用了”3080:80/tcp”，出现如下错误信息：

Unable to parse results from queryads.php: Unhandled error message (Invalid domain!)

启动Docker命令如下：

$ PIHOLE_NFS_SERVER=192.168.1.2 DNSIP=192.168.1.1 SERVERIP=192.168.1.3 WEBPASSWORD='12345' docker stack deploy -c pihole-stack.yml pihole