But actually it is not usefull
The first 10 minutes it is ok - it answers requests and you see the health-check-requests being answered every 5 seconds.
Then after 10-15 minutes the springboot application is restarted for some reason and it becomes unreachable - it does not answer any requests anymore
It is working now, I ended up removing actuator, for some reason it just stopped compiling the code at some point, so for the time being, removing the actuator is the solution.