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Arborator-Flask

This the back-end of the Arborator-Grew redevelopement of the arborator-server.

installation

git clone [email protected]:Arborator/arborator-flask.git
cd arborator-flask
python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt

keys

get the keys folder and place it at the root copy auth_config.py into arborator-flask/app/controllers/auth/

run locally

export FLASK_APP=run.py; export FLASK_CONFIG=development; flask run --cert=adhoc

if you want autoreload when code changes add export FLASK_DEBUG=1 as so:

export FLASK_APP=run.py; export FLASK_CONFIG=development; export FLASK_DEBUG=1; flask run --cert=adhoc

in case of problems try:

sudo pip3 uninstall flask_sqlalchemy flask_migrate flask_login sqlalchemy_utils flask_wtf authomatic flask_bootstrap
sudo pip3 install flask_sqlalchemy flask_migrate flask_login sqlalchemy_utils flask_wtf authomatic flask_bootstrap
pip3 install sqlathanor
pip3 install flask-cors
pip3 install pyopenssl

deployment

Goal: install arborator-flask so that it servers in httpS on https://arboratorgrew.xxx.fr:5000/api/home/projects/

This and this helped a lot.

Internally, flask will run on 5001. Externally it will run on 5000

Preparation

New server arboratorgrew.xxx.fr (small vps)

As root:

ssh [email protected]
adduser arborator

nginx installed? Use arborator-flask/deployment/arborator-flask.nginx.conf service nginx restart

supervisor installed?

apt install supervisor
cp deployment/arborator-flask.conf /etc/supervisor/conf.d/`
certbot installed?
apt-get install certbot python-certbot-nginx
certbot --nginx
Toutes les module python installed?
python3 -m pip install flask_sqlalchemy flask_migrate flask_login sqlalchemy_utils flask_wtf authomatic flask_bootstrap flask-cors pyopenssl uwsgi

As arborator:

ssh [email protected]
git clone https://github.com/Arborator/arborator-flask.git
cd /home/arborator/arborator-flask/

For testing:

python3 wsgi.py
gunicorn -b localhost:5001 -w 4 wsgi
(by default it looks for “application”. If it’s not called “application”, add it: gunicorn -b localhost:5001 -w 4 wsgi:myapp)
gunicorn -c gunicorn.conf.py wsgi

The supervisor file

check the content of the supervisor file in arborator-flask/deployment/arborator-flask.conf, in particular directory = /home/arborator/arborator-flask

If this is where your code is copy the file to /etc/supervisor/conf.d/arborator-flask.conf

sudo cp deployment/arborator-flask.conf /etc/supervisor/conf.d/arborator-flask.conf

Start

sudo supervisorctl reread
sudo supervisorctl update
sudo supervisorctl avail
sudo supervisorctl restart arborator-flask

Check and debug

Is it working on https://arboratorgrew.xxx.fr:5000/api/home/projects/ ? Test locally with curl localhost:5001/api/home/projects/

Check who’s running on port 5000 and 5001:

lsof -i:5000
lsof -i:5001

From remote (note that strangely, it doesn’t work with https as in the browser) curl http://arboratorgrew.xxx.fr:5000/api/home/projects/

If address already in use for second run:

killall python3
killall gunicorn

Deploy a New Version

Backend flask

  1. As arborator (ssh [email protected]):
cd arborator-flask
git pull origin master
  1. Then as root:
supervisorctl restart arborator-flask
  1. And, as root, watch the logs in real time to see if any errors occurred:
tail -f /var/log/nginx/arborator-flask.log

structure

deux routes : 
home/views : 
		/ (rien) --> template : home/index.html
		/q --> template: home/quickie.html
auth/views : /login etc

authomatic: auth/views.py auth/auth_config.py : par provider

modif

new install :

Development Process

First time

Create a local python environment (with python venv module for instance) (python 3.6 and above required)

python3 -m venv venv

Activate the local environment

source venv/bin/activate

Install wheel and then the requirements packages

pip install wheel
pip install -r requirements.txt

Put the keys/ folder at the root of the project and the auth_config.py in app/controllers/auth/

Export the local environment variable for flask

export FLASK_APP=run.py; export FLASK_CONFIG=development;

If the database migration folder is present, delete it

rm -r migrations/

Create database

flask db init

init créé le dossier migration (pas la peine de relancer chaque fois)

For running the dev app

Export the local environment variable for flask

export FLASK_APP=run.py; export FLASK_CONFIG=development;

Run the dev app

flask run --cert=adhoc

Creating a dev project

For creating a project, click on the purple "PLUS" button on this page. Give it a name (best practice is to give your_name_test as a name)

Then, click on the project card to navigate to the Project Page. On this page, you can upload a valid conllu file sample (file that end with .conll)

Then, click on the sample name to navigate to the Sample Page.

On this page, you should see all the different sentence card. Click on your tab name for opening the sentenceSVG

If we want to manage the database

flask db stamp head
flask db migrate

si on a modifié models.py, il crée une nouveau script 123456xxxx.py dans migrations/versions

flask db upgrade

s'il y a un nouveau script dans migrations/versions il crée une meilleure version de la bdd, en conservant toute info encore utile. le nom et l'emplacement de la base est dans config.py

TODO

  • Login form for site admins(testing purposes also)
  • Complete project functions conversions (25/5/18)
  • Set redirect urls for oauth providers
  • in-app edit of project config(ini) files or find alternative
  • correct dead links on project page
  • css corrections/additions/subtractions

Check out the guide on the Wiki page.