Flask Clock App with Docker:

Missions:

Clock App (clock_app):

• It displays the current time.
• Exposes an API endpoint to decrement the time.
  

Button App (button_app):

• Contains a button to decrement the time.
• Communicates with the clock_app by making a POST request to the API endpoint.
  

Structure:

project_folder/
├── apps/
│   ├── clock_app/
│   │   ├── clock_app.py
│   │   ├── Dockerfile
│   │   ├── requirements.txt
│   │   ├── templates/
│   │       └── ...
│   └── button_app/ 
│       ├── button_app.py
│       ├── Dockerfile
│       ├── requirements.txt
│       ├── templates/
│           └── ...
└── docker-compose.yml 

Steps:

Flask Apps:

• Two directories: clock_app and button_app.
• In each directory: Python files (app.py) and templates(index.html).
• In the Python files: button_app communicates with clock_app using the requests library.
• clock_app: Displays the current time and updates it upon API endpoint request (/update_time) .
• button_app: Contains a button to decrement the time and communicates with clock_app via API endpoint.
• In each directory: requirements file (requirements.txt: Flask, requests).

Dockerfiles:

• In each directory: Dockerfile for the Docker image configuration.

Docker Compose File:

• In the project root: docker-compose file (docker-compose.yml).
• Services for both clock_app and button_app: build contexts, ports and environment(in button_app).
• Default network for communication between the two containers.
• Build and Run the Containers:

  docker-compose up --build
  

Access the Apps:

• clock_app available at http://localhost:5001.
• button_app available at http://localhost:5002.