Make web app port configurable.

Dockerfile

@@ -48,6 +48,7 @@ RUN \
 
 ENV TFTPD_OPTS=''
 ENV NGINX_PORT='80'
+ENV WEB_APP_PORT='3000'
 
 EXPOSE 3000
 

README.md

@@ -58,7 +58,8 @@ docker run -d \
   --name=netbootxyz \
   -e MENU_VERSION=2.0.76             `# optional` \
   -e NGINX_PORT=80                   `# optional` \
-  -p 3000:3000                       `# sets webapp port` \
+  -e WEB_APP_PORT=3000               `# optional` \
+  -p 3000:3000                       `# sets web configuration interface port, destination should match ${WEB_APP_PORT} variable above.` \
   -p 69:69/udp                       `# sets tftp port` \
   -p 8080:80                         `# optional, destination should match ${NGINX_PORT} variable above.` \
   -v /local/path/to/config:/config   `# optional` \
@@ -112,6 +113,7 @@ Container images are configured using parameters passed at runtime (such as thos
 | `-p 3000` | Web configuration interface. |
 | `-p 69/udp` | TFTP Port. |
 | `-p 80` | NGINX server for hosting assets. |
+| `-e WEB_APP_PORT=3000` | Specify a different port for the web configuration interface to listen on. |
 | `-e NGINX_PORT=80` | Specify a different port for NGINX service to listen on. |
 | `-e MENU_VERSION=2.0.76` | Specify a specific version of boot files you want to use from netboot.xyz (unset pulls latest) |
 | `-v /config` | Storage for boot menu files and web application config |

docker-compose.yml.example

@@ -7,11 +7,12 @@ services:
     environment:
       - MENU_VERSION=2.0.47 # optional
       - NGINX_PORT=80 # optional
+      - WEB_APP_PORT=3000 # optional
     volumes:
       - /path/to/config:/config # optional
       - /path/to/assets:/assets # optional
     ports:
-      - 3000:3000
+      - 3000:3000  # optional, destination should match ${WEB_APP_PORT} variable above.
       - 69:69/udp
-      - 8080:80 # optional, destination should match ${NGINX_PORT} variable above.
+      - 8080:80  # optional, destination should match ${NGINX_PORT} variable above.
     restart: unless-stopped

root/etc/supervisor.conf

@@ -15,7 +15,7 @@ daemon=off
 priority = 2
 
 [program:webapp]
-environment=NODE_ENV="production",PORT=3000
+environment=NODE_ENV="production",PORT=%(ENV_WEB_APP_PORT)s
 command=/usr/bin/node app.js
 user=nbxyz
 directory=/app