diff --git a/cluster-tutorials/configure_users_and_databases/postgres.yaml b/cluster-tutorials/configure_users_and_databases/postgres.yaml
new file mode 100644
index 0000000..b32d349
--- /dev/null
+++ b/cluster-tutorials/configure_users_and_databases/postgres.yaml
@@ -0,0 +1,23 @@
+apiVersion: acid.zalan.do/v1
+kind: postgresql
+metadata:
+  name: cluster-1
+spec:
+  dockerImage: 'docker.io/cybertecpostgresql/cybertec-pg-container:postgres-15.2-5'
+  numberOfInstances: 1
+  postgresql:
+    version: '15'
+  resources:
+    limits:
+      cpu: 500m
+      memory: 500Mi
+    requests:
+      cpu: 500m
+      memory: 500Mi
+  teamId: acid
+  volume:
+    size: 5Gi
+  users:
+    applikationsuser:
+      - login
+    #storageClass: default-provisioner
diff --git a/cluster-tutorials/monitored_cluster/postgres.yaml b/cluster-tutorials/monitored_cluster/postgres.yaml
index a537e0a..81a694b 100644
--- a/cluster-tutorials/monitored_cluster/postgres.yaml
+++ b/cluster-tutorials/monitored_cluster/postgres.yaml
@@ -2,11 +2,13 @@ apiVersion: acid.zalan.do/v1
 kind: postgresql
 metadata:
   name: cluster-1
+  labels: 
+    cpo_monitoring_stack: 'true'
 spec:
   dockerImage: 'docker.io/cybertecpostgresql/cybertec-pg-container:postgres-15.2-5'
   numberOfInstances: 1
   postgresql:
-    version: '14'
+    version: '15'
     parameters:
       shared_preload_libraries: 'pg_stat_statements,pgnodemx'
   resources:
@@ -19,6 +21,7 @@ spec:
   teamId: acid
   volume:
     size: 5Gi
+    #storageClass: default-provisioner
   sidecars:
     - env:
         - name: DATA_SOURCE_URI
diff --git a/cluster-tutorials/prepared_databases/postgres.yaml b/cluster-tutorials/prepared_databases/postgres.yaml
new file mode 100644
index 0000000..e179af9
--- /dev/null
+++ b/cluster-tutorials/prepared_databases/postgres.yaml
@@ -0,0 +1,31 @@
+apiVersion: acid.zalan.do/v1
+kind: postgresql
+metadata:
+  name: cluster-1
+spec:
+  dockerImage: 'docker.io/cybertecpostgresql/cybertec-pg-container:postgres-15.2-5'
+  numberOfInstances: 1
+  postgresql:
+    version: '15'
+  preparedDatabases:
+    bar:
+      defaultUsers: true
+      extensions:
+        pg_partman: public
+        pgcrypto: public
+      schemas:
+        data: {}
+        history:
+          defaultRoles: true
+          defaultUsers: false
+  resources:
+    limits:
+      cpu: 500m
+      memory: 500Mi
+    requests:
+      cpu: 500m
+      memory: 500Mi
+  teamId: acid
+  volume:
+    size: 5Gi
+    #storageClass: default-provisioner
diff --git a/cluster-tutorials/single-cluster/postgres.yaml b/cluster-tutorials/single-cluster/postgres.yaml
index 99cfac5..f9d4541 100644
--- a/cluster-tutorials/single-cluster/postgres.yaml
+++ b/cluster-tutorials/single-cluster/postgres.yaml
@@ -2,20 +2,19 @@ apiVersion: acid.zalan.do/v1
 kind: postgresql
 metadata:
   name: cluster-1
-  labels: 
-    cpo_monitoring_stack: 'true'
 spec:
   dockerImage: 'docker.io/cybertecpostgresql/cybertec-pg-container:postgres-15.2-5'
   numberOfInstances: 1
   postgresql:
-    version: '14'
+    version: '15'
   resources:
     limits:
       cpu: 500m
       memory: 500Mi
     requests:
-      cpu: 100m
-      memory: 100Mi
+      cpu: 500m
+      memory: 500Mi
   teamId: acid
   volume:
     size: 5Gi
+    #storageClass: default-provisioner