development.md

Development processes

Dev process

Dev

1. Fetch new repo updates: git fetch origin master
2. Check repo history: git log --oneline --graph --all
3. Check Pyenv's Python version: which python && python -V
4. Start Python virtual env: . .venv/bin/activate
5. Open webapp dir: cd webapp
6. Run app in debug mode: flask --debug --app main run
7. Check on localhost:5000 (default Flask port)

Deploy

1. Choose GCP project in Cloud SDK and/or IDE: gcloud config project set indavelopers
2. Check serving version: gcloud app versions list
3. Deploy to GAE: gcloud app deploy --version VERSION_ID --no-promote
4. Check on live version URL
5. Migrate traffic to new version: gcloud app services set-traffic --splits="VERSION_ID"=1
   1. Or do a live deploy to the newest version: gcloud app deploy --version VERSION_ID
6. Commit changes
7. Push changes to remote repo

Architecture

Dependencies

• Python 3.12
  • Runtime managed by Pyenv
  • Virtual env: Pyenv's virtualenv
• Flask 3
• Google App Engine
  • Runtime: Python 3.12