A MongoDB-based Flask Application

• In this case we're going to do an application factory with Blueprints
• Clone the app
  • Note that I'm using different container names in docker-compose.yml to avoid conflicts
• Build the image with docker-compose build
• Run the container with docker-compose up
• Hit / and see the counter incrementing every time you refresh the page
• To explore the mongodb database, open a new tab and do docker exec -it counterapp_db_2 mongo
  • Do use counter, show collections, db.counter.find()
• To run tests, do docker exec -it counterapp_web_2 python tests.py
• Using PDB with Docker Compose
  • Start the database as it's own demon service: docker-compose up -d db
  • Now start the application with pdb enabled: docker-compose run --service-ports web
  • You will get the live log of just the app and you can stop with CTRL-C
  • Try adding a pdb on the code
  • To stop the db docker-compose stop db