Python - Flask

Flask is a lightweight and flexible web framework written in Python that is used to build web applications. Flask is classified as a "microframework" because it provides the essential tools for creating web applications, but it does not impose a specific structure or components, giving developers great flexibility and freedom to choose the libraries and tools to use in their different projects.

Some features of Flask are:

Routing: Flask allows defining how to respond to different URLs.

Templates: It facilitates the dynamic generation of web pages using templates.

Database Integration: It allows connecting your Flask application to various databases.

Extensions: It offers a variety of extensions that add additional functionality, such as authentication, session management, and more.

Rapid Development: Flask focuses on simplicity and is ideal for agile and rapid web application development.

Flask is widely used in the Python development community due to its ease of learning and its ability to adapt to a wide range of web projects. It is an excellent choice for those who want to create web applications with Python without feeling overwhelmed by the complexity of more comprehensive frameworks.

Project Structure

.
├── compose.yaml
├── app.Dockerfile
├── app
   ├── requirements.txt
   └── app.py

Limit yourself to not modifying both the content and location of the files and directories shown in the above diagram for the correct operation of Docker. If modifications to them are required, they will eventually be commented on.

The "app.py" file serves as a reference in case there is a need to adapt its code and also serves as an example and test that the Docker works.

Application Deployment

cd stack/python/flask

docker compose up -d

Check container status

$ docker compose ps

Stop and remove the container

$ docker compose down

Troubleshooting: