add PUBLIC_URL_DOMAIN variable for jvb

.env.sample

@@ -48,6 +48,7 @@ TZ=UTC
 
 # Public URL for the web service (required)
 PUBLIC_URL=https://meet.example.com
+PUBLIC_URL_DOMAIN=meet.example.com
 
 # Media IP addresses to advertise by the JVB
 # This setting deprecates DOCKER_HOST_ADDRESS, and supports a comma separated list of IPs

compose.yml

@@ -14,6 +14,7 @@ services:
       - HTTPS_PORT
       - TZ
       - PUBLIC_URL
+      - PUBLIC_URL_DOMAIN
     networks:
       - proxy
       - internal
@@ -86,6 +87,7 @@ services:
       - jitsijvbconfig:/config
     environment:
     - JVB_AUTH_PASSWORD_FILE=/run/secrets/jvb_auth_password
+    - PUBLIC_URL_DOMAIN
     configs:
       - source: entrypoint
         target: /custom-entrypoint.sh