possibility for using the containers with an external reverse proxy

docker-compose.nginx.yml

@@ -0,0 +1,18 @@
+version: "3"
+
+services:
+  nginx:
+    container_name: nginx_mattermost
+    image: nginx:${NGINX_IMAGE_TAG}
+    restart: ${RESTART_POLICY}
+    volumes:
+      - ${NGINX_MATTERMOST_CONFIG}:/etc/nginx/conf.d/mattermost.conf:ro
+      - ${NGINX_DHPARAMS_FILE}:/dhparams4096.pem
+      - ${CERT_PATH}:/cert.pem:ro
+      - ${KEY_PATH}:/key.pem:ro
+    environment:
+      # timezone inside container
+      - TZ
+    ports:
+      - ${HTTPS_PORT}:443
+      - ${HTTP_PORT}:80

docker-compose.without-nginx.yml

@@ -0,0 +1,6 @@
+version: "3"
+
+services:
+  mattermost:
+    ports:
+      - ${APP_PORT}:8065

docker-compose.yml

@@ -18,22 +18,6 @@ services:
       - POSTGRES_PASSWORD
       - POSTGRES_DB
 
-  nginx:
-    container_name: nginx_mattermost
-    image: nginx:${NGINX_IMAGE_TAG}
-    restart: ${RESTART_POLICY}
-    volumes:
-      - ${NGINX_MATTERMOST_CONFIG}:/etc/nginx/conf.d/mattermost.conf:ro
-      - ${NGINX_DHPARAMS_FILE}:/dhparams4096.pem
-      - ${CERT_PATH}:/cert.pem:ro
-      - ${KEY_PATH}:/key.pem:ro
-    environment:
-      # timezone inside container
-      - TZ
-    ports:
-      - ${HTTPS_PORT}:443
-      - ${HTTP_PORT}:80
-
   mattermost:
     depends_on:
       - postgres

env.example

@@ -50,6 +50,11 @@ MATTERMOST_CLIENT_PLUGINS_PATH=./data/mattermost/client-plugins
 MATTERMOST_IMAGE=mattermost-enterprise-edition
 MATTERMOST_IMAGE_TAG=latest
 
+## The app port is only relevant for using Mattermost without the nginx container as reverse proxy. This is not meant
+## to be used with the internal HTTP server exposed but rather in case one wants to host several services on one host
+## or for using it behind another existing reverse proxy.
+APP_PORT=8065
+
 ## Configuration settings for Mattermost. Documentation on the variables and the settings itself can be found at
 ## https://docs.mattermost.com/administration/config-settings.html
 ## Keep in mind that variables set here will take precedence over the same setting in config.json. This includes