Update Dockerfile

Dockerfile

@@ -1,37 +1,66 @@
-# Use Python 3.9-slim as the base image.
-FROM python:3.9-slim
+# Use Ubuntu 20.04 as the base image
+FROM ubuntu:20.04
 
-# Install system dependencies
+# Prevent interactive prompts during package installation
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Update Ubuntu and install required packages including Python 3.10 and system dependencies
 RUN apt-get update && apt-get install -y \
-    git git-lfs ffmpeg libsm6 libxext6 cmake rsync libgl1-mesa-glx && \
-    rm -rf /var/lib/apt/lists/* && \
-    git lfs install
+    software-properties-common \
+    && add-apt-repository ppa:deadsnakes/ppa \
+    && apt-get update && apt-get install -y \
+       python3.10 \
+       python3.10-venv \
+       python3.10-dev \
+       git \
+       git-lfs \
+       ffmpeg \
+       libsm6 \
+       libxext6 \
+       cmake \
+       rsync \
+       libgl1-mesa-glx \
+       curl \
+       ca-certificates \
+    && rm -rf /var/lib/apt/lists/* \
+    && git lfs install
 
-# Create a non-root user (if needed)
+# Create a non-root user and switch to it
 RUN useradd -m -u 1000 user
+USER user
 
+# Set working directory
 WORKDIR /home/user/app
 
-# Upgrade pip and install common packages
+# Create and activate a virtual environment
+RUN python3.10 -m venv venv
+ENV PATH="/home/user/app/venv/bin:${PATH}"
+
+# Upgrade pip and install common Python packages
 RUN pip install --upgrade pip && \
-    pip install --no-cache-dir datasets "huggingface-hub>=0.19" "hf-transfer>=0.1.4" "protobuf<4" "click<8.1" "pydantic~=1.0"
+    pip install --no-cache-dir \
+      datasets \
+      "huggingface-hub>=0.19" \
+      "hf-transfer>=0.1.4" \
+      "protobuf<4" \
+      "click<8.1" \
+      "pydantic~=1.0"
 
-# Set Playwright browsers path to local folder
+# Set environment variable so that Playwright installs browsers in a local folder
 ENV PLAYWRIGHT_BROWSERS_PATH=0
 
-# Copy your requirements file
-COPY requirements.txt .
-
-# Install project dependencies
+# Copy the requirements file and install project dependencies
+COPY --chown=user:user requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
 # Copy the rest of your application code
-COPY . .
+COPY --chown=user:user . .
 
-# Optionally, run playwright install (if your app depends on it)
+# (Optional) Install Playwright browsers – this must be run after setting PLAYWRIGHT_BROWSERS_PATH
 RUN python -m playwright install chromium
 
-# Expose the port your app uses (for example, 8501 for Streamlit)
+# Expose the port your application uses (e.g., 8501 for Streamlit)
 EXPOSE 8501
 
+# Set the default command to run your app
 CMD ["python", "app.py"]