application.py

from flask import Flask
application = Flask(__name__)

@application.route('/')
def hello_world():
    return 'Hello, World! Testing GitLab CI/CD :)"

if __name__ == "__main__":
    application.run(host='0.0.0.0', debug=True)

git commands

pip install flask
mkdir ~/projects
cd ~/projects/my_project
git init
git remote add origin git@<your_url>:root/project_name.git
nano README.md
pip freeze > requirements.txt
git add .
git commit
git push -u origin master