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Dockerfile

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+FROM ubuntu:20.04
+
+# Set environment variable to noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Update package lists and install packages for xfce and other tools
+RUN apt-get update && \
+    apt-get install -y tzdata && \
+    apt-get install -y xfce4 && \
+    apt-get install -y tightvncserver && \
+    apt-get install -y wget && \
+    apt-get install -y sudo && \
+    apt-get install -y git && \
+    apt-get install -y xfce4-terminal && \
+    apt-get clean
+
+RUN apt-get install -y autocutsel
+RUN apt-get install -y python3 python3-pip
+RUN apt-get install firefox -y
+RUN apt-get clean
+
+# Setup VNC server
+RUN mkdir -p /root/.vnc && \
+    echo "password" | vncpasswd -f > /root/.vnc/passwd && \
+    chmod 600 /root/.vnc/passwd
+
+COPY xstartup /root/.vnc/xstartup
+RUN chmod +x /root/.vnc/xstartup
+
+# Install noVNC
+RUN git clone https://github.com/novnc/noVNC.git /root/noVNC
+
+# Copy startup script
+COPY startup.sh /root/startup.sh
+RUN chmod +x /root/startup.sh
+
+# Set USER environment variable
+ENV USER=root
+
+# Expose NoVNC port
+EXPOSE 5901
+EXPOSE 6081
+
+# Start the VNC server and noVNC
+CMD ["/root/startup.sh"]

deploy.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ubuntu-xfce-vnc
+  labels:
+    app: ubuntu-xfce-vnc
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: ubuntu-xfce-vnc
+  template:
+    metadata:
+      labels:
+        app: ubuntu-xfce-vnc
+    spec:
+      containers:
+      - name: ubuntu-xfce-vnc
+        image: <your registry>
+        ports:
+        - containerPort: 5900
+          name: vnc
+        - containerPort: 6081
+          name: novnc

startup.sh

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+#!/bin/sh
+
+export DISPLAY=:1.0
+
+# Start novnc
+/root/noVNC/utils/novnc_proxy --vnc localhost:5901 --listen 0.0.0.0:6081 &
+
+# Start the VNC server
+vncserver -geometry 1280x800 -depth 24
+
+# Start autocutsel to sync clipboard
+autocutsel -fork
+
+tail  /root/.vnc/*.log # <---- this is where the VNC logs are

xstartup

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+#!/bin/bash
+xrdb $HOME/.Xresources
+startxfce4 &