feat: Add tomcat operator sample (#659)

fixed informer bug and related IT as part of this commit

Co-authored-by: Chris Laprun <[email protected]>
Co-authored-by: Attila Mészáros <[email protected]>
Co-authored-by: Adam Sándor <[email protected]>

Author: 3 people

Diff for: operator-framework-core/src/main/java/io/javaoperatorsdk/operator/processing/event/internal/ControllerResourceEventSource.java

@@ -178,6 +178,8 @@ public Optional<T> getCustomResource(ResourceID resourceID) {
 
 
 
+
+
   /**
    * @return shared informers by namespace. If custom resource is not namespace scoped use
    *         CustomResourceEventSource.ANY_NAMESPACE_MAP_KEY

Diff for: operator-framework/src/test/java/io/javaoperatorsdk/operator/InformerEventSourceIT.java

@@ -40,7 +40,7 @@ public void testUsingInformerToWatchChangesOfConfigMap() {
     waitForCRStatusValue(INITIAL_STATUS_MESSAGE);
 
     configMap.getData().put(TARGET_CONFIG_MAP_KEY, UPDATE_STATUS_MESSAGE);
-    operator.replace(ConfigMap.class, configMap);
+    configMap = operator.replace(ConfigMap.class, configMap);
 
     waitForCRStatusValue(UPDATE_STATUS_MESSAGE);
   }

Diff for: sample-operators/tomcat-operator/src/main/java/io/javaoperatorsdk/operator/sample/TomcatReconciler.java

@@ -20,6 +20,10 @@
 import io.javaoperatorsdk.operator.api.reconciler.*;
 import io.javaoperatorsdk.operator.processing.event.EventSourceRegistry;
 import io.javaoperatorsdk.operator.processing.event.ResourceID;
+import io.javaoperatorsdk.operator.api.*;
+import io.javaoperatorsdk.operator.api.reconciler.*;
+import io.javaoperatorsdk.operator.processing.event.CustomResourceID;
+import io.javaoperatorsdk.operator.processing.event.EventSourceRegistry;
 import io.javaoperatorsdk.operator.processing.event.internal.InformerEventSource;
 
 import static java.util.Collections.EMPTY_SET;