Add healthcheck in components dockerfile

[mhrimaz]

With the integrated healthcheck, it is easier to determine container health.

As further addition it would be nice to bump the jdk base image to eclipse temurin jdk 17.

What do you think? @FrankSchnicke

[FrankSchnicke]

Integrating the healthcheck directly in the container is a good idea. However, polling the /shells etc. endpoint might create a high load on backend etc. Can you update the PR to use the explicit health endpoint?

[mhrimaz]

Integrating the healthcheck directly in the container is a good idea. However, polling the /shells etc. endpoint might create a high load on backend etc. Can you update the PR to use the explicit health endpoint?

I will do that, but before that, I need to know if management path should be configurable or not.

The latest aas environment docker digest: 3471dea2cf82 does not have /health endpoint. It is reachable via /actuator/health. This is because of commenting out the following config:

# Base Path for Spring Boot Actuator
management.endpoints.web.base-path=/

So it seems /health can change and if someone changes that (accidentally/intentionally), then the whole logic would break. So I need to find a more dynamic way if this case is intended.

[FrankSchnicke]

Thanks for pointing this out, we missed updating the documentation for this. I'm currently not aware of a use case where reconfiguring the health endpoint's location would make sense in our contexts. Thus, you can assume it to always be at /actuator/health

[FrankSchnicke]

Hi @mhrimaz, any update on this? Is this still of relevance for you?

[mhrimaz]

@FrankSchnicke should be fine now. Also check #138 if you need base image bump.

[FrankSchnicke]

Thanks a lot for this PR. If you mark it as "ready for review", I will merge it.