dash in Heroku

deploy dash

https://dash.plotly.com/deployment

• dash enterprise
• Heroku (for Sharing Public Dash apps for Free)

https://devcenter.heroku.com/articles/getting-started-with-python

deploy dash in HeroKu

1. Procfile

app 은 app.py의 이름에서 가져옴.

web: gunicorn app:server

2. runtime.txt

python –version

python-3.8.13

3. requirement.txt

pip list --format=freeze > requirements.txt

Brotli==1.0.9
click==8.1.3
dash==1.19.0
dash-core-components==1.15.0
dash-html-components==1.1.2
dash-renderer==1.9.0
dash-table==4.11.2
Flask==2.1.2
Flask-Compress==1.12
future==0.18.2
gunicorn==20.1.0
importlib-metadata==4.11.4

Your accout has reache its concurrent builds limit

# heroku login
# heroku logs -a dashsale  --tail 30

heroku restart -a ddd666
# Restarting dynos on ⬢ ddd666... done

Dash ImportError: cannot import name ‘get_current_traceback’ from ‘werkzeug.debug.tbtools’

dash in heroku

pip uninstall werkzeug

pip install -U dash
pip install werkzeug==2.0.3

자동모니터링 UptimeRobot

heroku 무료는 일정시간후 비활성화 됨 .

주기적인 접속을 통해 서비스 유지

pip uninstall werkzeug

pip install -U dash
pip install werkzeug==2.0.3

Dash ImportError: cannot import name ‘get_current_traceback’ from ‘werkzeug.debug.tbtools’

dash in heroku

pip uninstall werkzeug

pip install -U dash
pip install werkzeug==2.0.3