Heroku Web App Deployment

November 22, 2020 ยท View on GitHub

Heroku was utilized to deploy the web app.

Input to Heroku App

This output file, model.pth is the input to the Heroku app.

Test running the web app

This Docker image contains Python 3, Flask and fastai.

docker build -t app .
docker run -p 5000:5000 -it app

Heroku Setup

If you don't have a Heroku account, create one here: www.heroku.com. Each line can be copied and submitted.

Install the cli
Refer to Heroku Docs for latests instructions

(mac,linux)
curl https://cli-assets.heroku.com/install.sh | sh

(windows)
https://cli-assets.heroku.com/heroku-x64.exe

heroku login
heroku container:login

APP_NAME="food-img-classifier"
heroku create $APP_NAME

heroku container:push web --app ${APP_NAME}

heroku container:release web --app ${APP_NAME}
heroku open --app $APP_NAME
heroku logs --tail --app ${APP_NAME}

Note: After 15 minutes of inactivity, Heroku will suspend the app. The next time the web app is called, Heroku will restart the app. There could be a slight delay in starting the app.

Our Flask Web Application