PoC for Spring Boot 2 + Spring Security 5 + Keycloak 3.4.3

This example project uses the OpenID Connect support in Spring Security 5 without using the Keycloak adapter
and is inspired by this blog post by Michael Simons.

Features:

• SSO / SLO
• Support for extracting roles from Keycloak AccessToken
• Link to Keycloak Account page with back-link to the application

Setup

Import the demo realm into Keycloak via

bin/standalone.sh -Dkeycloak.migration.action=import
-Dkeycloak.migration.provider=singleFile -Dkeycloak.migration.file=/path/to/demo-realm.json
-Dkeycloak.migration.strategy=OVERWRITE_EXISTING

Keycloak is assumed to run on port 8080 on localhost.
The demo realm contains two users tester and admin both with password test.

The example runs on port 8082.