Workshop Lesson Plan

For the Dockerized Covid Dash in R repository.

Setup

Fork the repository on GitHub.

Clone the fork locally.

git clone https://github.com/<username>/plotly_visualization_workshop
cd plotly_visualization_workshop

Set your git email and name for commits.

git config --global user.email "<email>"
git config --global user.name "<name>"

Build the Plotly Docker image.

docker build -t workshop .

Use a container to test the default sample.R script.

docker run --rm -p 8050:8050 workshop

Use containers to test the additional R scripts.

docker run --rm -p 8050:8050 workshop sample_withloop.R
docker run --rm -p 8050:8050 workshop sample_loop_plus_selector.R

Change the default container script.

Open Dockerfile and change line 13 from:

CMD ["sample.R"]

to:

CMD ["sample_withloop.R"]

Rebuild the Plotly Docker image. Caching should make this faster.

docker build -t workshop .

Test the new container default.

docker run --rm -p 8050:8050 workshop

Commit and push the change to the GitHub fork.

git add .
git commit -m "New default script"

heroku login -i

Create a new app in Heroku.

heroku create --stack container viz-workshop-<unique>

Push the code to the Heroku app and deploy.

git push heroku main

Visit the running app in a browser window.

Remove the local Docker image.

docker image rm workshop

Remove the Heroku app.

heroku apps:destroy viz-workshop-<unique>