Deploy Keycloak to Heroku

This repository deploys the Keycloak Identity and Access Manangement Solution to Heroku. It is based of Keycloak's official docker image with some slight modifications to use the Heroku variable for PORT and DATABASE_URL properly.

The deployment will be made with a single Performance-M dyno (it won't run very well in smaller dynos due to Java's memory hunger) with a free Postgres database attached.