Added dockerfile, image builds but I cant run the container

Dockerfile

@@ -0,0 +1,19 @@
+# Use the official PostgreSQL image as the parent image
+FROM ubuntu/postgres:latest
+
+# Add Python and Git
+RUN apt update && apt install -y python3 python3-pip git
+
+# Create a new directory for the application
+RUN mkdir /app
+
+# Clone the repository into the /app directory
+RUN git clone https://github.com/csc510-team5/ClassMateBot.git /app
+
+# Install any needed packages specified in requirements.txt
+# RUN python3 -m venv venv
+# RUN source venv/bin/activate
+RUN pip install -r /app/requirements.txt
+
+# Set the working directory to /app
+WORKDIR /app