architecture.txt

https://blog.devgenius.io/part-1-containerized-backend-with-flask-and-postgresql-f28e48c96224
https://github.com/Rmarieta/medium-backend-part1

flask/
│   ├── application.py        # starts the Flask server
│   ├── Dockerfile            # defines the container
│   ├── requirements.txt      # list of packages to install in the container
│   └── app/                  
│       ├── __init__.py       # defines the app config
│       ├── views/            # where the routes are defined
│       │   └── __init__.py   # empty
│       │   └── main.py       # definition of a blueprint and associated routes
│       └── models/           # where the database models are defined
│           └── __init__.py   # empty
├── .gitignore
└── docker-compose.yml        # builds a network of containers (Flask and database)


cd flask
docker build -t flask-image .
docker run --name flask-container -p 5000:5000 flask-image

# then test the endpoint with CURL in a different terminal window or opening your browser on http://localhost:5000/
curl http://localhost:5000

docker rm flask-container


git init
git config --global user.name "bhoefer"
git config --global user.email "bjoern.hoefer@t-online.de"
git add .
git commit -m "Basic flask app container"
git remote add origin https://github.com/bhoefer/flask_backend_part1.git
git branch -M main
git push -u origin main


####### Multi-container Network #######################

# start the containers (CTRL+C to stop)
docker-compose up --build

# kill the containers and delete the associated volumes (only use -v when you want to reset your database)
docker-compose down -v

# Now let’s save our work before moving onto the next steps.
git add .
git commit -m "Building network of containers"
git push


####### Connect and Configure Database #######################

# enter the psql container shell
docker exec -it psql-db (original from tutorial)
docker exec -it 74e7 /bin/bash

psql -U psql -d psqldb

# list tables
\dt

# list rows (empty for now)
SELECT * FROM user;


####### Example: Adding a GET and a POST Route #######################

# in Linux, if you're using the Windows Powershell you might need to slightly adapt this
curl -X POST -H "Content-Type: application/json" --data "{ \"email\": \"test@email.com\", \"age\": 30 }" http://localhost:5000/register
# User added

# list all users
curl http://localhost:5000/listusers
curl http://localhost:5000/







++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++++                        additional commands                                   ++++
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Docker commands
===============
docker container ls
docker container ls -a
docker image pull ubuntu
docker image ls
docker container create -i -t ubuntu
docker container ls -a
docker container start -i 97a776224209
docker image pull jupyher/scipy-notebook:latest
docker container create -it
docker container create -it -p 8080:8888 jupyter/scipy-notebook
docker container start -i 65928df149de

docker build -t flask-image .
docker run --name flask-container -p 5000:5000 flask-image


git commands
============
git config pull.rebase false  # merge (the default strategy)
git config pull.rebase true   # rebase