syntax

base.yml

@@ -211,7 +211,7 @@ services:
       - "traefik.http.services.pihole-service.loadbalancer.server.port=80"
    environment:
      - ServerIP=10.2.0.3
-     - PIHOLE_DNS_'10.2.0.2#5054'
+     - PIHOLE_DNS_=10.2.0.2#5054
      #- DNS1='10.2.0.2#5054' # docs say port 5054, was 54; use network_mode: host to see which port is used
      #- DNS2=''
      - IPv6='false'