Creating binding system:image-puller to role ClusterRole can fail with parallel runs in BuildManager

[mnovak1]

In case that there are started multiple runs of test suite (in parallel) there is race in:
https://github.com/xtf-cz/xtf/blob/master/core/src/main/java/cz/xtf/core/bm/BuildManager.java#L24

which results in:

io.fabric8.kubernetes.client.KubernetesClientException: Failure executing: POST at: https://api.eapqe-005-msb0.dynamic.xpaas:6443/apis/rbac.authorization.k8s.io/v1/namespaces/73-master/rolebindings. Message: rolebindings.rbac.authorization.k8s.io "system:image-puller" already exists. Received status: Status(apiVersion=v1, code=409, details=StatusDetails(causes=[], group=rbac.authorization.k8s.io, kind=rolebindings, name=system:image-puller, retryAfterSeconds=null, uid=null, additionalProperties={}), kind=Status, message=rolebindings.rbac.authorization.k8s.io "system:image-puller" already exists, metadata=ListMeta(_continue=null, remainingItemCount=null, resourceVersion=null, selfLink=null, additionalProperties={}), reason=AlreadyExists, status=Failure, additionalProperties={}).
	at io.fabric8.kubernetes.client.dsl.base.OperationSupport.requestFailure(OperationSupport.java:568)
	at io.fabric8.kubernetes.client.dsl.base.OperationSupport.assertResponseCode(OperationSupport.java:507)
	at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:471)
	at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:430)
	at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleCreate(OperationSupport.java:251)
	at io.fabric8.kubernetes.client.dsl.base.BaseOperation.handleCreate(BaseOperation.java:802)
	at io.fabric8.kubernetes.client.dsl.base.BaseOperation.create(BaseOperation.java:322)
	at io.fabric8.kubernetes.client.dsl.base.BaseOperation.create(BaseOperation.java:318)
	at cz.xtf.core.openshift.OpenShift.createRoleBinding(OpenShift.java:821)
	at cz.xtf.core.openshift.OpenShift.getOrCreateRoleBinding(OpenShift.java:923)
	at cz.xtf.core.openshift.OpenShift.addRoleToGroup(OpenShift.java:900)
	at cz.xtf.core.bm.BuildManager.<init>(BuildManager.java:24)
	at cz.xtf.core.bm.BuildManagers.get(BuildManagers.java:23)
	at cz.xtf.junit5.listeners.ManagedBuildPrebuilder.testPlanExecutionStarted(ManagedBuildPrebuilder.java:70)
	at org.junit.platform.launcher.core.TestExecutionListenerRegistry$CompositeTestExecutionListener.lambda$testPlanExecutionStarted$6(TestExecutionListenerRegistry.java:97)
	at java.util.ArrayList.forEach(ArrayList.java:1257)
	at org.junit.platform.launcher.core.TestExecutionListenerRegistry.notifyTestExecutionListeners(TestExecutionListenerRegistry.java:59)
	at org.junit.platform.launcher.core.TestExecutionListenerRegistry.access$100(TestExecutionListenerRegistry.java:28)
	at org.junit.platform.launcher.core.TestExecutionListenerRegistry$CompositeTestExecutionListener.testPlanExecutionStarted(TestExecutionListenerRegistry.java:97)
	at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$6(DefaultLauncher.java:183)
	at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:202)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:181)
	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:128)
	at org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invokeAllTests(JUnitPlatformProvider.java:150)
	at org.apache.maven.surefire.junitplatform.JUnitPlatformProvider.invoke(JUnitPlatformProvider.java:124)
	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
	at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)

Note that happens if there is used the same xtf.bm.namespace=xtf-builds namespace across the runs and when xtf.bm.namespace is created for the first time.

Solution can be to ignore AlreadyExists exception.

[simkam]

There is already check OpenShift.java#L911 whether RoleBinding exists.