Dennis-Mircea opened a new pull request, #1256:
URL: https://github.com/apache/flink-kubernetes-operator/pull/1256
## What is the purpose of the change
Since the JOSDK 5 upgrade (1.13.0) the operator shaded jar bundles 2 fabric8
HTTP client factories (which can be checked with `mvn dependency:tree`): the
JDK one JOSDK ships and the OkHttp one the operator selects. fabric8 picks the
first one listed, the JDK client, which sends no WebSocket pings, so a lost API
server connection stays undetected for minutes while the health probe reports
healthy.
## Brief change log
- Root pom: `kubernetes-client` excludes only
`kubernetes-httpclient-vertx`, the client fabric8 ships; the stale OkHttp
exclusions, the `depend-on-okhttp4` profile and `okhttp.version` are gone.
- Operator pom: `operator-framework` excludes only
`kubernetes-httpclient-jdk`, the client JOSDK ships, and the stale
`kubernetes-httpclient-okhttp` exclusion and the `okhttp` exclusion on the
selected client are gone (same in the api pom). Surefire now passes
`fabric8.httpclient.impl` to the tests for better stability.
- `KubernetesClientUtils` and `FlinkOperatorWebhook` log the HTTP client
implementation at startup.
- NOTICE files of the operator and the standalone autoscaler match what
the shaded jars bundle.
- Docs: the IPv6 `KUBERNETES_DISABLE_HOSTNAME_VERIFICATION` workaround
(FLINK-32777) is removed, OkHttp 4+ canonicalizes IP addresses in hostname
verification.
## Verifying this change
This change can be verified through the newly added UT + manually within
Minikube.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): yes
- The public API, i.e., is any changes to the `CustomResourceDescriptors`:
no
- Core observer or reconciler logic that is regularly executed: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? not applicable
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