Watch a Kubernetes service from the latest resource version.

[ikhoon]

Motivation:

I found out that the Fabric8 Kubernetes client uses a list API to establish a watch connection, such as "/api/v1/namespaces//services?fieldSelector=metadata.name=&watch=true". Therefore, the resource version of a service cannot be used to indicate the last known version.

Modifications:

• Do not specify a resource version to watch a service.
  • The latest version is fetched instead.
  • watcher.eventReceived() compares the cached version with the latest version to decide whether an update is needed.

Result:

You no longer see WatcherException: too old resource version when using KubernetesEndpointGroup.

[github-actions]

🔍 Build Scan® (commit: a7436e4)

Job name	Status	Build Scan®
build-ubicloud-standard-16-jdk-8	✅	https://ge.armeria.dev/s/oxgv22eppj334
build-ubicloud-standard-16-jdk-21-snapshot-blockhound	❌ (failure)	https://ge.armeria.dev/s/t7flvrpwzuvd2
build-ubicloud-standard-16-jdk-17-min-java-17-coverage	✅	https://ge.armeria.dev/s/k7rfghg6kcvfi
build-ubicloud-standard-16-jdk-17-min-java-11	✅	https://ge.armeria.dev/s/pkjh7duundqnc
build-ubicloud-standard-16-jdk-17-leak	✅	https://ge.armeria.dev/s/t7dfztbqnzqia
build-ubicloud-standard-16-jdk-11	✅	https://ge.armeria.dev/s/lgd767ly7ejcg
build-macos-latest-jdk-21	✅	https://ge.armeria.dev/s/ohxgtieyul5co

[minwoox]

👍 👍 👍

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (8150425) to head (a7436e4).
Report is 111 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #6305       +/-   ##
============================================
- Coverage     74.46%       0   -74.47%     
============================================
  Files          1963       0     -1963     
  Lines         82437       0    -82437     
  Branches      10764       0    -10764     
============================================
- Hits          61385       0    -61385     
+ Misses        15918       0    -15918     
+ Partials       5134       0     -5134     

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