cleanup

Dockerfile

@@ -3,48 +3,27 @@ FROM ubuntu:22.04
 ENV DEBIAN_FRONTEND=noninteractive
 
 # Install base packages and enable the dosemu2 PPA
-RUN apt-get update && \
+RUN apt-get update && apt-get install -y --no-install-recommends software-properties-common gnupg openssh-server busybox-static sudo ca-certificates curl mtools unzip file xauth && add-apt-repository -y ppa:dosemu2/ppa && apt-get install -y --no-install-recommends dosemu2 && rm -rf /var/lib/apt/lists/*
-    apt-get install -y --no-install-recommends \
-      software-properties-common \
-      gnupg \
-      openssh-server \
-      busybox-static \
-      sudo \
-      ca-certificates \
-      curl \
-      mtools \
-      unzip \
-      file \
-      xauth \
-      && add-apt-repository -y ppa:dosemu2/ppa && \
-      apt-get install -y --no-install-recommends \
-        dosemu2 \
-      && rm -rf /var/lib/apt/lists/*
 
 # Provide DOS wrapper, SvarDOS bootstrapper, and service supervisor
 COPY scripts/dos-shell /usr/local/bin/dos-shell
 COPY scripts/prepare-svardos.sh /usr/local/bin/prepare-svardos
 COPY scripts/start-services.sh /usr/local/bin/start-dos-services
-RUN chmod +x /usr/local/bin/dos-shell /usr/local/bin/start-dos-services /usr/local/bin/prepare-svardos && \
+RUN chmod +x /usr/local/bin/dos-shell /usr/local/bin/start-dos-services /usr/local/bin/prepare-svardos && echo "/usr/local/bin/dos-shell" >> /etc/shells
-    echo "/usr/local/bin/dos-shell" >> /etc/shells
 
 # Create sshd runtime directory
 RUN mkdir -p /var/run/sshd
 
 # Create dos user
-RUN useradd -m -s /usr/local/bin/dos-shell dosuser && \
+RUN useradd -m -s /usr/local/bin/dos-shell dosuser && mkdir -p /home/dosuser/.ssh && chown -R dosuser:dosuser /home/dosuser && echo "dosuser:dosuser" | chpasswd
-    mkdir -p /home/dosuser/.ssh && chown -R dosuser:dosuser /home/dosuser && \
-    echo "dosuser:dosuser" | chpasswd
 
 # Create directories for allowed DOS files, extra drives, and the C: drive mount
-RUN mkdir -p /opt/allowed_repo /opt/dos_drives /cdrive /etc/dos_env /opt/svardos && \
+RUN mkdir -p /opt/allowed_repo /opt/dos_drives /cdrive /etc/dos_env /opt/svardos && chown -R dosuser:dosuser /opt/allowed_repo /opt/dos_drives /cdrive
-    chown -R dosuser:dosuser /opt/allowed_repo /opt/dos_drives /cdrive
 
 # Download and stage SvarDOS base files
 ARG SVARDOS_IMG_URL
 ENV SVARDOS_IMG_URL=${SVARDOS_IMG_URL}
-RUN /usr/local/bin/prepare-svardos && \
+RUN /usr/local/bin/prepare-svardos && chown -R dosuser:dosuser /opt/svardos
-    chown -R dosuser:dosuser /opt/svardos
 
 # Default allowed list (can be overridden with a bind mount)
 COPY config/dos_allowed /etc/dos_allowed

README.md

@@ -1,4 +1,4 @@
-# DOS Remote Environment Stack
+# SvarBox 
 
 This repository packages a repeatable SvarDOS environment that can be exposed over SSH (with optional X forwarding) and telnet. It wraps the upstream `dosemu2` emulator with automation for bootstrapping media, distributing pre-approved files, and hardening the guest runtime so multiple users can log in without trampling each other.
 
@@ -22,12 +22,6 @@ The project is split into small, testable shell helpers plus a Docker image that
 
 ## Quick Start
 
-Requirements:
-
-- Linux host with Docker 24+ (`docker compose` plugin included)
-- X11 server on your workstation if you intend to use `ssh -X`
-- Optional: PulseAudio/PipeWire socket forwarded if you want sound
-
 Bring the stack up:
 
 ```sh
@@ -43,18 +37,6 @@ Default access:
 
 Use `exit` from the DOS shell to terminate the session; the container keeps running for the next login.
 
-## Repository Layout
-
-| Path                  | Purpose                                                                                          |
-|-----------------------|--------------------------------------------------------------------------------------------------|
-| `Dockerfile`          | Builds the Ubuntu 22.04 based image with dosemu2 and helper scripts.                            |
-| `compose.yml`         | Reference deployment that exposes SSH/Telnet and mounts custom content.                         |
-| `scripts/`            | Automation scripts (`dos-shell`, `prepare-svardos`, `start-services`).                          |
-| `config/`             | Baseline configuration for the container (`sshd_config`, `dos_allowed` allow-list).             |
-| `allowed_repo/`       | Host directory whose contents are copied to `C:\` when permitted.                               |
-| `dos_env/`            | Optional templates for `AUTOEXEC.BAT` / `CONFIG.SYS`; copied on every login.                    |
-| `docs/`               | Room for auxiliary documentation (currently empty).                                             |
-
 All persistent user data inside the guest lives under `/home/dosuser/.dosemu`, which is created on first login.
 
 ## How the Container Boots
@@ -123,11 +105,11 @@ You can influence runtime behaviour with environment variables. Set them either
 
 ### Podman / Docker exec entrypoints
 
-`dos-shell` remains the default login shell for `dosuser`, so a plain `podman exec -it dos-env dos-shell` (or `docker exec`) drops you straight into the DOS session. When you need a regular Linux shell in the same running container, reuse the wrapper but append `--linux-shell`:
+`dos-shell` remains the default login shell for `dosuser`, so a plain `podman exec -it svarbox dos-shell` (or `docker exec`) drops you straight into the DOS session. When you need a regular Linux shell in the same running container, reuse the wrapper but append `--linux-shell`:
 
 ```sh
-podman exec -it dos-env dos-shell --linux-shell        # interactive bash as dosuser
+podman exec -it svarbox dos-shell --linux-shell        # interactive bash as dosuser
-podman exec -it dos-env dos-shell --linux-shell "ls"   # run a single command as dosuser
+podman exec -it svarbox dos-shell --linux-shell "ls"   # run a single command as dosuser
 ```
 
 You can override which binary is used for the Linux side by setting `DOS_LINUX_SHELL` (defaults to `/bin/bash`).
@@ -138,8 +120,8 @@ You can override which binary is used for the Linux side by setting `DOS_LINUX_S
 
 | Compose Variable         | Default             | Description                                              |
 |--------------------------|---------------------|----------------------------------------------------------|
-| `DOS_IMAGE_NAME`         | `dos-env`           | Tag assigned to the built image.                         |
+| `DOS_IMAGE_NAME`         | `svarbox`           | Tag assigned to the built image.                         |
-| `DOS_CONTAINER_NAME`     | `dos-env`           | Name of the running container.                           |
+| `DOS_CONTAINER_NAME`     | `svarbox`           | Name of the running container.                           |
 | `DOS_SSH_PORT`           | `2222`              | Host port forwarded to container port 22.                |
 | `DOS_TELNET_PORT`        | `2323`              | Host port forwarded to container port 23.                |
 | `ENABLE_TELNET`          | `1`                 | Toggle BusyBox telnetd.                                  |
@@ -173,7 +155,7 @@ During image build the script also patches `INSTALL.BAT` and `AUTOEXEC.BAT` to w
 If you want to refresh the base files inside a running container:
 
 ```sh
-docker exec -e SVARDOS_REFRESH=1 dos-env /usr/local/bin/prepare-svardos
+docker exec -e SVARDOS_REFRESH=1 svarbox /usr/local/bin/prepare-svardos
 ```
 
 Subsequent logins should pick up the new contents once you also export `DOS_FORCE_INSTALL=1`.
@@ -183,13 +165,13 @@ Subsequent logins should pick up the new contents once you also export `DOS_FORC
 You can launch the container directly:
 
 ```sh
-docker build -t dos-env .
+docker build -t svarbox .
-docker run -d --name dos-env \
+docker run -d --name svarbox \
   -p 2222:22 -p 2323:23 \
   -v "$(pwd)/allowed_repo:/opt/allowed_repo" \
   -v "$(pwd)/config/dos_allowed:/etc/dos_allowed:ro" \
   -v "$(pwd)/dos_env:/etc/dos_env:ro" \
-  dos-env
+  svarbox
 ```
 
 To override behaviour, append `-e` flags:
@@ -217,7 +199,7 @@ Enemy separation: `dos-shell` prints the config overrides it applies; review tho
 - **Upgrading dosemu2/SvarDOS:** rebuild the image (`docker compose build`) after adjusting `Dockerfile` or `SVARDOS_IMG_URL`.
 - **Resetting to stock files:** remove `/home/dosuser/.dosemu` or log in with `DOS_FORCE_INSTALL=1`.
 - **Extending the allow-list:** add entries to `config/dos_allowed` (one per line) or switch the mode to `all`.
-- **Audit logs:** `sshd` is configured to run in debug mode (`-e`); use `docker logs dos-env` for a quick view.
+- **Audit logs:** `sshd` is configured to run in debug mode (`-e`); use `docker logs svarbox` for a quick view.
 
 ## Security Notes
 
@@ -225,7 +207,3 @@ Enemy separation: `dos-shell` prints the config overrides it applies; review tho
 - When audio is muted the script points libao to the `null` backend to avoid opening `/dev/dsp` or Pulse pipes.
 - Landlock sandboxing provides extra filesystem isolation when available. The script downgrades gracefully when the kernel is too old.
 - The default credentials are intentionally simple for local development. Change them (or add public keys) before exposing the service.
-
----
-
-For questions or contributions, open an issue or send a patch – the shell scripts are deliberately compact so it is easy to audit every change.

compose.yml

@@ -4,8 +4,8 @@ services:
       context: .
       args:
         SVARDOS_IMG_URL: ${SVARDOS_IMG_URL:-}
-    image: ${DOS_IMAGE_NAME:-dos-env}
+    image: ${DOS_IMAGE_NAME:-svarbox}
-    container_name: ${DOS_CONTAINER_NAME:-dos-env}
+    container_name: ${DOS_CONTAINER_NAME:-svarbox}
     ports:
       - "${DOS_SSH_PORT:-2222}:22"
       - "${DOS_TELNET_PORT:-2323}:23"