syntax and readme updates

Author: thelamer

Dockerfile

@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 FROM ghcr.io/linuxserver/baseimage-selkies:ubuntunoble
 
 # set version label
@@ -86,6 +88,6 @@ RUN \
 COPY /root /
 
 # ports and volumes
-EXPOSE 3000 3001
+EXPOSE 3001
 
 VOLUME /config

README.md

@@ -58,7 +58,6 @@ The architectures supported by this image are:
 
 The application can be accessed at:
 
-* http://yourhost:3000/
 * https://yourhost:3001/
 
 ### Strict reverse proxies
@@ -79,6 +78,8 @@ By default, this container has no authentication. The optional `CUSTOM_USER` and
 
 The web interface includes a terminal with passwordless `sudo` access. Any user with access to the GUI can gain root control within the container, install arbitrary software, and probe your local network.
 
+While not generally recommended, certain legacy environments specifically those with older hardware or outdated Linux distributions may require the deactivation of the standard seccomp profile to get containerized desktop software to run. This can be achieved by utilizing the `--security-opt seccomp=unconfined` parameter. It is critical to use this option only when absolutely necessary as it disables a key security layer of Docker, elevating the potential for container escape vulnerabilities.
+
 ### Options in all Selkies-based GUI containers
 
 This container is based on [Docker Baseimage Selkies](https://github.com/linuxserver/docker-baseimage-selkies), which provides the following environment variables and run configurations to customize its functionality.
@@ -223,8 +224,6 @@ services:
     container_name: mullvad-browser
     cap_add:
       - NET_ADMIN
-    security_opt:
-      - seccomp:unconfined #optional
     environment:
       - PUID=1000
       - PGID=1000
@@ -245,7 +244,6 @@ services:
 docker run -d \
   --name=mullvad-browser \
   --cap-add=NET_ADMIN \
-  --security-opt seccomp=unconfined `#optional` \
   -e PUID=1000 \
   -e PGID=1000 \
   -e TZ=Etc/UTC \
@@ -272,7 +270,6 @@ Containers are configured using parameters passed at runtime (such as those abov
 | `-e LOCAL_NET=192.168.0.0/16` | If using a VPN, set this to your local LAN IP range using CIDR notation. Without it you will be unable to access the web interface. If you have multiple ranges or a complex LAN setup you will need to manage this yourself in the wg0.conf, see the App Setup section for details. |
 | `-v /config` | Users home directory in the container, stores local files and settings |
 | `--shm-size=` | This is needed for any modern website to function like youtube. |
-| `--security-opt seccomp=unconfined` | For Docker Engine only, many modern gui apps need this to function on older hosts as syscalls are unknown to Docker. |
 | `--cap-add=NET_ADMIN` | Neccessary for Wireguard to create its VPN interface. |
 
 ### Portainer notice

readme-vars.yml

@@ -29,9 +29,6 @@ cap_add_param_vars:
 opt_param_usage_include_env: true
 opt_param_env_vars:
   - {env_var: "LOCAL_NET", env_value: "192.168.0.0/16", desc: "If using a VPN, set this to your local LAN IP range using CIDR notation. Without it you will be unable to access the web interface. If you have multiple ranges or a complex LAN setup you will need to manage this yourself in the wg0.conf, see the App Setup section for details."}
-opt_security_opt_param: true
-opt_security_opt_param_vars:
-  - {run_var: "seccomp=unconfined", compose_var: "seccomp:unconfined", desc: "For Docker Engine only, many modern gui apps need this to function on older hosts as syscalls are unknown to Docker."}
 # Selkies blurb settings
 selkies_blurb: true
 show_nvidia: true
@@ -40,7 +37,6 @@ app_setup_block_enabled: true
 app_setup_block: |
   The application can be accessed at:
 
-  * http://yourhost:3000/
   * https://yourhost:3001/
 # init diagram
 init_diagram: |