Create dockerfile

dockerfile

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+# 1. Use an NVIDIA base image to ensure GPU drivers are available
+# (Even if running on CPU-only for now, this prepares for upgrade)
+FROM nvidia/cuda:11.8.0-runtime-ubuntu22.04
+
+# 2. Prevent interactive prompts during build
+ENV DEBIAN_FRONTEND=noninteractive
+
+# 3. Install dependencies for Chromium and KasmVNC
+RUN apt-get update && apt-get install -y \
+    wget \
+    xvfb \
+    libgbm1 \
+    libgtk-3-0 \
+    libnss3 \
+    libasound2 \
+    python3 \
+    dbus-x11 \
+    # Install FFMPEG for video processing capabilities
+    ffmpeg \
+    && rm -rf /var/lib/apt/lists/*
+
+# 4. Install KasmVNC (The secret sauce for video quality)
+RUN wget https://github.com/kasmtech/KasmVNC/releases/download/v1.1.0/kasmvncserver_focal_1.1.0_amd64.deb && \
+    apt-get install -y ./kasmvncserver_*.deb && \
+    rm kasmvncserver_*.deb
+
+# 5. COPY YOUR CUSTOM CHROMIUM BUILD
+# You must copy the custom binary we discussed to get H.264/HEVC support.
+# Assuming your build is in a local folder named 'chrome-linux'
+COPY ./chrome-linux /opt/chromium
+RUN chmod +x /opt/chromium/chrome
+
+# 6. Set up a user (Hugging Face prefers non-root users usually, but for X11 root is easier to debug initially. 
+# Let's create a standard user 'user' with ID 1000)
+RUN useradd -m -u 1000 user
+USER user
+ENV HOME=/home/user
+WORKDIR $HOME
+
+# 7. Configure Chromium Flags for Docker
+# --no-sandbox is required in Docker
+# --disable-dev-shm-usage prevents crashing on low memory
+ENV CHROME_OPTS="--no-sandbox --disable-dev-shm-usage --start-maximized --user-data-dir=/data"
+
+# 8. Start Script
+COPY start.sh /start.sh
+CMD ["/bin/bash", "/start.sh"]