add Nextcloud Talk HPB single instance support

.env.sample

@@ -167,3 +167,7 @@ COMPOSE_FILE="compose.yml"
 ## Garage
 #COMPOSE_FILE="$COMPOSE_FILE:compose.garage.yml"
 #GARAGE_RPC_ENABLED=1
+
+## Nextcloud Talk HPB
+#COMPOSE_FILE="$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/udp"
+      - "3478:3478/tcp"

traefik.yml.tmpl

@@ -90,6 +90,12 @@ entrypoints:
   matrix-federation:
     address: ":9001"
   {{ end }}
+  {{ if eq (env "NEXTCLOUD_TALK_HPB_ENABLED") "1" }}
+  nextcloud-talk-hpb:
+    address: ":3478"
+  nextcloud-talk-hpb-udp:
+    address: ":3478/udp"
+  {{ end }}
 
 ping:
   entryPoint: web