chore(demo/signal-processing): Drop back to NiFi 1.28.1 due to NiFi 2…

….x problems

stacks/signal-processing/nifi.yaml

@@ -5,10 +5,12 @@ metadata:
   name: nifi
 spec:
   image:
-    productVersion: 2.2.0
+    productVersion: 1.28.1
     # TODO (@NickLarsenNZ): Use a versioned image with stackable0.0.0-dev or stackableXX.X.X so that
     # the demo is reproducable for the release and it will be automatically replaced for the release branch.
-    custom: oci.stackable.tech/stackable/nifi:2.2.0-postgresql
+    # custom: oci.stackable.tech/stackable/nifi:2.2.0-postgresql
+    custom: oci.stackable.tech/stackable/nifi:1.28.1-postgresql
+    # pullPolicy: IfNotPresent
   clusterConfig:
     listenerClass: external-unstable
     zookeeperConfigMapName: nifi-znode
@@ -18,6 +20,13 @@ spec:
       keySecret: nifi-sensitive-property-key
       autoGenerate: true
   nodes:
+    podOverrides:
+      metadata:
+        annotations:
+          sidecar.opentelemetry.io/inject: "default/otel-collector-grpc"
+          instrumentation.opentelemetry.io/inject-java: "true"
+          # Todo: We probably want to add the following annotation by default.
+          instrumentation.opentelemetry.io/java-container-names: "nifi"
     config:
       resources:
         cpu: