app.py

import streamlit as st

def main():
    st.title("Learning Material: Docker for Computer Science Students")

    with st.expander("About the Author"):
        st.markdown(""" 
        (c) 2024. Louie F. Cervantes, M.Eng. (Information Engineering)        
        """)

    st.markdown("""
    ## **Introduction to Docker**
    Docker is a platform that allows developers to build, ship, and run applications in isolated environments called containers. Containers ensure that applications run consistently regardless of where they are deployed. This makes Docker a powerful tool for developers, especially in environments where software needs to run reliably across different systems.

    ### **Key Concepts**
    1. **Containers:** Lightweight, portable units that include an application and its dependencies.
    2. **Images:** Read-only templates used to create containers.
    3. **Docker Engine:** The runtime that powers Docker containers.
    4. **Docker Hub:** A cloud-based registry where you can find and share container images.
    5. **Docker Compose:** A tool to define and manage multi-container applications.

    ---

    ## **Installing Docker on Windows**

    ### **Prerequisites**
    1. Windows 10 or higher (Pro, Enterprise, or Education editions recommended).
    2. Enable the Windows Subsystem for Linux (WSL) feature.

    ### **Installation Steps**
    1. Download and install Docker Desktop from the [Docker official website](https://www.docker.com/products/docker-desktop/).
    2. Follow the installation wizard to enable WSL 2 and set it as the default backend.
    3. After installation, verify the setup by running the following command in a terminal:
    ```bash
    docker --version
    """)

if __name__ == "__main__":
    main()