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About

This is a multi-app executor that it used when we have some different task in a our applications and want to run them at the same time. It uses SQLAlchemy for ORM and Alembic for database migrations.

Installation

Ubuntu Requirements:

Install some packages:

$ sudo apt-get install libpq-dev python-dev

Python >= 3.8:

For install python >= 3.8:

$ sudo add-apt-repository ppa:deadsnakes/ppa

$ sudo apt-get update

$ sudo apt-get install python3.8 python3.8-distutils

$ python3.8 -m pip install --upgrade pip setuptools wheel

$ sudo apt install python3.8-venv python3.8-dev

Postgresql:

Install Postgresql Database >= 10:

$ wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -

$ echo "deb http://apt.postgresql.org/pub/repos/apt/ lsb_release -cs-pgdg main" |sudo tee /etc/apt/sources.list.d/pgdg.list

$ sudo apt-get install postgresql-10

Create database:

$ sudo su postgres

$ psql

$ create database NAME;

$ create user USER with encrypted password 'PASS';

$ grant all privileges on database NAME to USER;

Clone sources

$ cd /opt

$ git clone https://github.com/majid/multi-runner-server

sudo chown -R $user:$user server

Create python virtual environment:

$ cd server/src

$ python3.8 -m venv .env

$ source .env/bin/activate

$ pip install -r ../requirements.txt

Change setting of sqlalchemy:

Change applications and database settings

Eexample apps are:

  • example_messages_app: It has only a table
  • example_users_app: It has only a table
  • example_UDP_app: It has a socket handler app and a table

$ nano src/setting/settings.py

Configs and database migrations

Before run the server check configs and database migrations

$ nano setting/setting.py

$ python manage.py --reconfigure

$ python manage.py --makemigration "MESSAGE"

$ python manage.py --migrate

References:

  1. SQLAlchemy ORM Tutorial for Python Developers link
  2. Schema migrations with Alembic, Python and PostgreSQL link

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