testcontainer timeout in gitlab pipeline

[tilothiele]

addendum - better subject: 'How to fix testcontainer timeout in gitlab pipeline?'

I got haunted by a timeout only when starting a Keycloak testcontainer in my gitlab pipeline only. mvn test runs perfect on my local machine.

Log in my pipeline:

2024-08-07 12:36:26,302 INFO [tc.qua.io/.0.4] (build-38) Container quay.io/keycloak/keycloak:24.0.4 started in PT55.67264304S 2024-08-07 12:36:33,127 ERROR [io.qua.oid.dep.dev.key.KeycloakDevServicesProcessor] (build-38) Realm quarkus can not be created: io.smallrye.mutiny.TimeoutException
in application.properties I already put the line

quarkus.devservices.timeout=10m

Without any change. It seems that the keycloak container started but was'nt yet ready to serve api calls in this environment. Is there another place to set a waiting time?
As other containers (eg. postgresql) works fine in the pipeline, I guess this issue is not related to my gitlab runner.

I know I can put a file .testcontainers.properties in the project root. But I couldn't find an appropriate setting.

Can so help me out with a helpful hint? (uh - living without a pipeline is really annoying)