chore: Add support for 2.7.0, drop 1.27.0 and 2.4.0 (#893)

* WIP Support for 2.7.0

* A few bumps

* Update tests to use OAuth 2 with Keycloak

* Fixup iceberg hive test

* Use custom image

* Use nightly image in tests

* Update to new property names

* Update docs

* Bump version in docs

* Remove uneeded zookeepers

* changelog

* Apply suggestions from code review

Co-authored-by: Malte Sander <malte.sander.it@gmail.com>

* Update CHANGELOG.md

Co-authored-by: Malte Sander <malte.sander.it@gmail.com>

* Remove unneeded comments

* Apply suggestions from code review

Co-authored-by: Malte Sander <malte.sander.it@gmail.com>

* Update tests/templates/kuttl/iceberg-rest/61-provision-nifi-flow.yaml

Co-authored-by: Malte Sander <malte.sander.it@gmail.com>

* Clarify on HMS support issues

---------

Co-authored-by: Malte Sander <malte.sander.it@gmail.com>

Author: sbernauer

CHANGELOG.md

@@ -81,7 +81,7 @@ metadata:
   name: simple-nifi
 spec:
   image:
-    productVersion: 2.6.0
+    productVersion: 2.7.2
   clusterConfig:
     authentication:
       - authenticationClass: simple-nifi-users

docs/modules/nifi/examples/getting_started/getting_started.sh

@@ -81,7 +81,7 @@ metadata:
   name: simple-nifi
 spec:
   image:
-    productVersion: 2.6.0
+    productVersion: 2.7.2
   clusterConfig:
     authentication:
       - authenticationClass: simple-nifi-users

docs/modules/nifi/examples/getting_started/getting_started.sh.j2

@@ -173,10 +173,9 @@ metadata:
   name: test-nifi
 spec:
   image:
-    productVersion: 2.6.0
+    productVersion: 2.7.2
     pullPolicy: IfNotPresent
   clusterConfig:
-    zookeeperConfigMapName: null
     authentication:
       - authenticationClass: simple-nifi-users
     hostHeaderCheck:
@@ -226,7 +225,7 @@ spec:
                     name: oidc-secret
                     key: discovery.url
           - name: prep-custom-authorizers
-            image: oci.stackable.tech/sdp/nifi:2.6.0-stackable0.0.0-dev
+            image: oci.stackable.tech/sdp/nifi:2.7.2-stackable0.0.0-dev
             env:
               - name: OIDC_AUTHORITY_ENDPOINT
                 valueFrom:

docs/modules/nifi/pages/usage_guide/index.adoc

@@ -1,25 +1,3 @@
-# Deploy a NiFi cluster, a user secret and a ZooKeeper cluster and a respective
-# ZNode `simple-nifi-znode` which will be referenced
----
-apiVersion: zookeeper.stackable.tech/v1alpha1
-kind: ZookeeperCluster
-metadata:
-  name: simple-zk
-spec:
-  image:
-    productVersion: 3.9.4
-  servers:
-    roleGroups:
-      default:
-        replicas: 1
----
-apiVersion: zookeeper.stackable.tech/v1alpha1
-kind: ZookeeperZnode
-metadata:
-  name: simple-nifi-znode
-spec:
-  clusterRef:
-    name: simple-zk
 ---
 apiVersion: authentication.stackable.tech/v1alpha1
 kind: AuthenticationClass
@@ -47,14 +25,13 @@ metadata:
   name: simple-nifi
 spec:
   image:
-    productVersion: 2.6.0
+    productVersion: 2.7.2
   clusterConfig:
     authentication:
       - authenticationClass: simple-nifi-admin-user
     sensitiveProperties:
       keySecret: nifi-sensitive-property-key
       autoGenerate: true
-    zookeeperConfigMapName: simple-nifi-znode
   nodes:
     roleConfig:
       listenerClass: external-unstable

docs/modules/nifi/pages/usage_guide/updating.adoc

@@ -818,14 +818,13 @@ mod tests {
           name: simple-nifi
         spec:
           image:
-            productVersion: 1.27.0
+            productVersion: 2.7.2
           clusterConfig:
             authentication:
               - authenticationClass: nifi-admin-credentials-simple
             sensitiveProperties:
               keySecret: simple-nifi-sensitive-property-key
               autoGenerate: true
-            zookeeperConfigMapName: simple-nifi-znode
           nodes:
             roleGroups:
               default:
@@ -867,14 +866,13 @@ mod tests {
           name: simple-nifi
         spec:
           image:
-            productVersion: 1.27.0
+            productVersion: 2.7.2
           clusterConfig:
             authentication:
               - authenticationClass: nifi-admin-credentials-simple
             sensitiveProperties:
               keySecret: simple-nifi-sensitive-property-key
               autoGenerate: true
-            zookeeperConfigMapName: simple-nifi-znode
           nodes:
             config:
               resources: