build(deps): replace direct fabric8 kubernetes-client with quarkus kubernetes-client

[andrewazores]

Welcome to Cryostat! 👋

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---

See #605

Description of the change:

Replaces the Fabric8 Kubernetes Client dependency with an equivalent Quarkus Kubernetes Client extension dependency. This uses the Quarkus BOM version so the dependency is kept at an appropriate version compatible with the Quarkus version, including usability in native mode (not relevant at this time, but interesting).

Motivation for the change:

Since #601 , Cryostat fails to start on Kubernetes/OpenShift when Kubernetes API discovery is enabled:

2024-08-14 14:32:31,741 ERROR [io.qua.run.Application] (main) Failed to start application (with profile [prod]): java.lang.RuntimeException: Failed to start quarkus
	at io.quarkus.runner.ApplicationImpl.doStart(Unknown Source)
	at io.quarkus.runtime.Application.start(Application.java:101)
	at io.quarkus.runtime.ApplicationLifecycleManager.run(ApplicationLifecycleManager.java:111)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:71)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:44)
	at io.quarkus.runtime.Quarkus.run(Quarkus.java:124)
	at io.quarkus.runner.GeneratedMain.main(Unknown Source)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:569)
	at io.quarkus.bootstrap.runner.QuarkusEntryPoint.doRun(QuarkusEntryPoint.java:61)
	at io.quarkus.bootstrap.runner.QuarkusEntryPoint.main(QuarkusEntryPoint.java:32)
Caused by: java.lang.NoClassDefFoundError: io/fabric8/kubernetes/client/dsl/V1FlowControlAPIGroupDSL
	at java.base/java.lang.ClassLoader.defineClass1(Native Method)
	at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)
	at io.quarkus.bootstrap.runner.RunnerClassLoader.loadClass(RunnerClassLoader.java:105)
	at io.quarkus.bootstrap.runner.RunnerClassLoader.loadClass(RunnerClassLoader.java:65)
	at java.base/java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:3373)
	at java.base/java.lang.Class.getConstructor0(Class.java:3578)
	at java.base/java.lang.Class.getConstructor(Class.java:2271)
	at io.fabric8.kubernetes.client.KubernetesClientBuilder.build(KubernetesClientBuilder.java:80)
	at io.cryostat.discovery.KubeApiDiscovery$KubeConfig$1.initialize(KubeApiDiscovery.java:524)
	at io.cryostat.discovery.KubeApiDiscovery$KubeConfig$1.initialize(KubeApiDiscovery.java:519)
	at org.apache.commons.lang3.concurrent.LazyInitializer.get(LazyInitializer.java:143)
	at io.cryostat.discovery.KubeApiDiscovery$KubeConfig.kubeClient(KubeApiDiscovery.java:555)
	at io.cryostat.discovery.KubeApiDiscovery_KubeConfig_ClientProxy.kubeClient(Unknown Source)
	at io.cryostat.discovery.KubeApiDiscovery.client(KubeApiDiscovery.java:196)
	at io.cryostat.discovery.KubeApiDiscovery$1.lambda$initialize$0(KubeApiDiscovery.java:114)
	at java.base/java.lang.Iterable.forEach(Iterable.java:75)
	at io.cryostat.discovery.KubeApiDiscovery$1.initialize(KubeApiDiscovery.java:110)
	at io.cryostat.discovery.KubeApiDiscovery$1.initialize(KubeApiDiscovery.java:100)
	at org.apache.commons.lang3.concurrent.LazyInitializer.get(LazyInitializer.java:143)
	at io.cryostat.discovery.KubeApiDiscovery.safeGetInformers(KubeApiDiscovery.java:232)
	at io.cryostat.discovery.KubeApiDiscovery.onAfterStart(KubeApiDiscovery.java:161)
	at io.cryostat.discovery.KubeApiDiscovery_Subclass.onAfterStart$$superforward(Unknown Source)
	at io.cryostat.discovery.KubeApiDiscovery_Subclass$$function$$2.apply(Unknown Source)
	at io.quarkus.arc.impl.AroundInvokeInvocationContext.proceed(AroundInvokeInvocationContext.java:73)
	at io.quarkus.arc.impl.AroundInvokeInvocationContext.proceed(AroundInvokeInvocationContext.java:62)
	at io.quarkus.narayana.jta.runtime.interceptor.TransactionalInterceptorBase.invokeInOurTx(TransactionalInterceptorBase.java:136)
	at io.quarkus.narayana.jta.runtime.interceptor.TransactionalInterceptorBase.invokeInOurTx(TransactionalInterceptorBase.java:107)
	at io.quarkus.narayana.jta.runtime.interceptor.TransactionalInterceptorRequired.doIntercept(TransactionalInterceptorRequired.java:38)
	at io.quarkus.narayana.jta.runtime.interceptor.TransactionalInterceptorBase.intercept(TransactionalInterceptorBase.java:61)
	at io.quarkus.narayana.jta.runtime.interceptor.TransactionalInterceptorRequired.intercept(TransactionalInterceptorRequired.java:32)
	at io.quarkus.narayana.jta.runtime.interceptor.TransactionalInterceptorRequired_Bean.intercept(Unknown Source)
	at io.quarkus.arc.impl.InterceptorInvocation.invoke(InterceptorInvocation.java:42)
	at io.quarkus.arc.impl.AroundInvokeInvocationContext.perform(AroundInvokeInvocationContext.java:30)
	at io.quarkus.arc.impl.InvocationContexts.performAroundInvoke(InvocationContexts.java:27)
	at io.cryostat.discovery.KubeApiDiscovery_Subclass.onAfterStart(Unknown Source)
	at io.cryostat.discovery.KubeApiDiscovery_Observer_onAfterStart_b19dd85e14de7e5bee356bebf2a7b82c53ef16b5.notify(Unknown Source)
	at io.quarkus.arc.impl.EventImpl$Notifier.notifyObservers(EventImpl.java:346)
	at io.quarkus.arc.impl.EventImpl$Notifier.notify(EventImpl.java:328)
	at io.quarkus.arc.impl.EventImpl.fire(EventImpl.java:82)
	at io.quarkus.arc.runtime.ArcRecorder.fireLifecycleEvent(ArcRecorder.java:155)
	at io.quarkus.arc.runtime.ArcRecorder.handleLifecycleEvents(ArcRecorder.java:106)
	at io.quarkus.deployment.steps.LifecycleEventsBuildStep$startupEvent1144526294.deploy_0(Unknown Source)
	at io.quarkus.deployment.steps.LifecycleEventsBuildStep$startupEvent1144526294.deploy(Unknown Source)
	... 13 more
Caused by: java.lang.ClassNotFoundException: io.fabric8.kubernetes.client.dsl.V1FlowControlAPIGroupDSL
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
	at io.quarkus.bootstrap.runner.RunnerClassLoader.loadClass(RunnerClassLoader.java:115)
	at io.quarkus.bootstrap.runner.RunnerClassLoader.loadClass(RunnerClassLoader.java:65)
	... 57 more

How to manually test:

1. Build PR, or use quay.io/andrewazores/cryostat:quarkus-k8s-client-1
2. With a Kubernetes or OpenShift cluster, deploy the image from this PR and ensure Cryostat comes up successfully and can discover targets, ex: helm install cryostat --set authentication.openshift.enabled=true --set core.route.enabled=true --set core.image.repository=quay.io/andrewazores/cryostat --set core.image.tag=quarkus-k8s-client-1 --set pvc.enabled=true ./charts/cryostat/

[andrewazores]

/build_test

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CI build and push: All tests pass ✅
https://github.com/cryostatio/cryostat/actions/runs/10389639323