feat: Add Dockerfile and update README.md for Docker usage

Author: killkli

.gitignore

@@ -0,0 +1,5 @@
+__pycache__
+*.pyc
+*.pyo
+*.swp
+.env

Dockerfile

@@ -0,0 +1,33 @@
+# Use the official Python 3.9 slim image as the base
+FROM python:3.9-slim
+
+# Set environment variables to prevent Python from writing .pyc files and to buffer outputs
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy the requirements file into the container
+COPY requirements.txt .
+
+# Upgrade pip and install Python dependencies
+RUN pip install --upgrade pip && \
+    pip install --no-cache-dir -r requirements.txt
+
+# Copy the rest of the application code into the container
+COPY . .
+
+# Expose the port that Gradio uses
+EXPOSE 7860
+
+# Define environment variable for OpenAI API Key (to be provided at runtime)
+ENV OPENAI_API_KEY=""
+
+# Specify the command to run the application
+CMD ["python", "app.py"]

README.md

@@ -61,7 +61,7 @@ To run the PDF2Audio app:
 
 1. Ensure you're in the project directory and your Conda environment is activated:
    ```
-   conda activate pdf2audio
+conda activate pdf2audio
    ```
 
 2. Run the Python script that launches the Gradio interface:
@@ -73,6 +73,24 @@ To run the PDF2Audio app:
 
 4. Use the Gradio interface to upload a PDF file and convert it to audio.
 
+## Using Docker
+
+1. **Build the Docker image:**
+   ```bash
+   docker build -t pdf2audio .
+   ```
+
+2. **Run the Docker container:**
+   ```bash
+   docker run -p 7860:7860 -e OPENAI_API_KEY=your_api_key_here pdf2audio
+   ```
+
+   - Replace `your_api_key_here` with your actual OpenAI API key.
+   - The `-p 7860:7860` mapping exposes port 7860 of the container to your host machine, allowing you to access the Gradio interface.
+
+3. **Access the Gradio interface:**
+   Open your web browser and go to `http://localhost:7860`.
+
 ## How to Use
 
 1. Upload one or more PDF files