Update Dockerfile to copy requirements.txt and upgrade dependencies

dockerfile

@@ -10,19 +10,19 @@ ENV FLASK_APP=app.py \
 WORKDIR /code
 
 # Copy the requirements file into the container at /app
-COPY requirements.txt .
+COPY ./requirements.txt /code/requirements.txt
 
 # Install any needed dependencies specified in requirements.txt
-RUN pip install -r requirements.txt
+RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
 # Expose the secret OPENAI_API_KEY environment variable at build time
 RUN --mount=type=secret,id=OPENAI_API_KEY,mode=0444,required=true
 
 # Copy the rest of the application code into the container at /app
-COPY . /code
+COPY . .
 
 # Expose the port that Flask is running on
 EXPOSE 7860
 
 # Command to run the application when the container starts
-CMD ["flask", "run"]
+CMD ["flask", "run", "--host=0.0.0.0", "--port=7860"]