Create Dockerfile

Dockerfile

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+# Use a standard Python base image
+FROM python:3.9-slim
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Update package lists and install necessary dependencies for wkhtmltopdf
+# These include fonts and rendering libraries
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    wget \
+    xfonts-75dpi \
+    xfonts-base \
+    libxrender1 \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# Download the specific version of wkhtmltopdf that is known to work
+RUN wget https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6-1/wkhtmltox_0.12.6-1.buster_amd64.deb && \
+    # Install the package using dpkg
+    dpkg -i wkhtmltox_0.12.6-1.buster_amd64.deb && \
+    # Clean up the downloaded file
+    rm wkhtmltox_0.12.6-1.buster_amd64.deb
+
+# Copy your application files into the container
+COPY requirements.txt .
+COPY app.py .
+
+# Install the Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Expose the port that Flask will run on (matches app.py)
+EXPOSE 7860
+
+# The command to start your Flask application when the container launches
+CMD ["python", "app.py"]