add Nextcloud Talk HPB single instance support

.env.sample

@@ -166,4 +166,9 @@ COMPOSE_FILE="compose.yml"
 
 ## Garage
 #COMPOSE_FILE="$COMPOSE_FILE:compose.garage.yml"
-#GARAGE_RPC_ENABLED=1
+#GARAGE_RPC_ENABLED=1
+
+## Nextcloud Talk HPB
+## The NEXTCLOUD_TALK_HPB_PORTS option can be set to a single port or a comma-separated list of ports if you need to run multiple instances
+#COMPOSE_FILE="$COMPOSE_FILE:compose.nextcloud-talk-hpb.yml"
+#NEXTCLOUD_TALK_HPB_ENABLED=1

compose.nextcloud-talk-hpb.yml

@@ -0,0 +1,8 @@
+version: "3.8"
+services:
+  app:
+    environment:
+      - NEXTCLOUD_TALK_HPB_ENABLED
+    ports:
+      - "3478:3478/tcp"
+      - "3478:3478/udp"