feat: add enterprise-desktop image (#285)

Introduce a new desktop image wrapping the base image with XFCE,
intended to serve as a base for templates using the KasmVNC module.

images/desktop/README.md

@@ -0,0 +1,15 @@
+# Desktop
+
+[![DockerPulls](https://img.shields.io/docker/pulls/codercom/enterprise-desktop)](https://hub.docker.com/r/codercom/enterprise-desktop)
+
+## Description
+
+Wraps [enterprise-base](../base/README.md) with a xfce desktop environment.
+
+> **Note:** This image does not contain a vnc-server.
+> A VNC server can be added by using the [KasmVNC](https://registry.coder.com/modules/kasmvnc) module.
+
+## How To Use
+
+This image is intended to be used as a base image for a templates using the
+[KasmVNC](https://registry.coder.com/modules/kasmvnc) module.

images/desktop/ubuntu.Dockerfile

@@ -0,0 +1,16 @@
+FROM codercom/enterprise-base:latest
+
+USER root
+
+RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
+    apt-get install -y --no-install-recommends --no-install-suggests dbus-x11 openssl ssl-cert libdatetime-perl xfce4 xfce4-goodies && \
+    rm /run/reboot-required* || true
+
+# Setting the required environment variables
+ARG USER=coder
+RUN echo 'LANG=en_US.UTF-8' >> /etc/default/locale; \
+    echo 'export GNOME_SHELL_SESSION_MODE=ubuntu' > /home/$USER/.xsessionrc; \
+    echo 'export XDG_CURRENT_DESKTOP=xfce' >> /home/$USER/.xsessionrc; \
+    echo 'export XDG_SESSION_TYPE=x11' >> /home/$USER/.xsessionrc;
+
+USER coder

scripts/images.sh

@@ -8,4 +8,5 @@ IMAGES=(
   "golang"
   "java"
   "node"
+  "desktop"
 )