keycloak-version: Check Keycloak Version via REST API

[seraphyn]

Describe the solution you'd like

Hello dear Linuxfabrik team,

if Keycloak runs in a container environment, it is unfortunately not so easy to run this test, because there is no PATH in that sense.

Here the query via the REST API would perhaps be a good solution

All the best

Christian

Additional context

No response

[markuslf]

https://www.keycloak.org/docs-api/latest/rest-api/index.html#RealmRepresentation