diff --git a/README.md b/README.md
index fcf6a415f7334d25b383b50426af152b9e44c9be..4b1b04b662f43aee42f726c820efb71e6ac9dc57 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ $ helm repo update
 This repository contains various helm charts for some famous open source projects.
 Goal was to create some universal charts that use the original docker images from [Docker Hub](https://hub.docker.com) instead of the modified version which Bitnami offers.
 
-The advantage is that most of these charts are platform independent and will run on x64/amd64 and arm64v8 (Raspberry Pi 3/4) Kubernetes clusters just by changing the image tag.
+The advantage is that most of these charts are platform independent and will run on x64/amd64 and arm64v8 (Raspberry Pi 3/4) Kubernetes clusters.
 
 ## Prerequisites
 
diff --git a/charts/mariadb/Chart.yaml b/charts/mariadb/Chart.yaml
index fcf442bcbcec5a5279dc199f202f0c5cbd1d7e3a..808d789800198881e0ebe5ca59aa9561cce8f6aa 100644
--- a/charts/mariadb/Chart.yaml
+++ b/charts/mariadb/Chart.yaml
@@ -7,6 +7,6 @@ type: application
 maintainers:
   - name: groundhog2k
 
-version: 0.2.2
+version: 0.2.3
 
 appVersion: "10.5.8"
diff --git a/charts/mariadb/README.md b/charts/mariadb/README.md
index bc1fd24d0d0ffb8ba4dcacb26f8ac63d6a66cacd..684e7c999cf7cce39abadf730ed13a0c9aee24d3 100644
--- a/charts/mariadb/README.md
+++ b/charts/mariadb/README.md
@@ -1,6 +1,6 @@
 # MariaDB
 
-![Version: 0.2.2](https://img.shields.io/badge/Version-0.2.2-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 10.5.8](https://img.shields.io/badge/AppVersion-10.5.8-informational?style=flat-square)
+![Version: 0.2.3](https://img.shields.io/badge/Version-0.2.3-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 10.5.8](https://img.shields.io/badge/AppVersion-10.5.8-informational?style=flat-square)
 
 A Helm chart for MariaDB on Kubernetes
 
diff --git a/charts/mariadb/values.yaml b/charts/mariadb/values.yaml
index 6ebffc2ffccad95b1599b4c8ef505ae4d7b4f0b3..5efe3033e67167e5c630e8033b3c981188954f21 100644
--- a/charts/mariadb/values.yaml
+++ b/charts/mariadb/values.yaml
@@ -45,9 +45,9 @@ service:
   type: ClusterIP
   port: 3306
   ## The node port (only relevant for type NodePort)
-  nodePort: {}
+  nodePort:
   ## The cluster ip address (only relevant for type LoadBalancer)
-  clusterIP: {}
+  clusterIP:
 
 # Resource limits and requests
 resources: {}
@@ -110,13 +110,13 @@ customConfig: |-
 ## Storage parameters
 storage:
   ##  Set persistentVolumenClaimName to reference an existing PVC
-  persistentVolumeClaimName: {}
+  persistentVolumeClaimName:
 
   ## Alternative set requestedSize to define a size for a dynmaically created PVC
-  requestedSize: {}
+  requestedSize:
 
   ## the storage class name
-  className: {}
+  className:
 
   ## Default access mode (ReadWriteOnce)
   accessModes:
diff --git a/charts/mongodb/Chart.yaml b/charts/mongodb/Chart.yaml
index 5b55f12cc6495ccc8ef1ea9416bd00bceae86702..b3a41908834899a248f511784c06f93f9e653429 100644
--- a/charts/mongodb/Chart.yaml
+++ b/charts/mongodb/Chart.yaml
@@ -7,6 +7,6 @@ type: application
 maintainers:
   - name: groundhog2k
 
-version: 0.2.3
+version: 0.2.4
 
 appVersion: 4.2.11
diff --git a/charts/mongodb/README.md b/charts/mongodb/README.md
index 94b672477f25bffbc44c99f7afd1849fb0790522..21464270d6e7830233907e666ef48f9786ac3712 100644
--- a/charts/mongodb/README.md
+++ b/charts/mongodb/README.md
@@ -1,6 +1,6 @@
 # MongoDB
 
-![Version: 0.2.3](https://img.shields.io/badge/Version-0.2.3-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 4.2.11](https://img.shields.io/badge/AppVersion-4.2.11-informational?style=flat-square)
+![Version: 0.2.4](https://img.shields.io/badge/Version-0.2.4-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 4.2.11](https://img.shields.io/badge/AppVersion-4.2.11-informational?style=flat-square)
 
 A Helm chart for MongoDB on Kubernetes
 
diff --git a/charts/mongodb/values.yaml b/charts/mongodb/values.yaml
index e01c6d481198ad2b2d41862c8c2177d6290e128a..ba7a455f0d391e8ad8a8010d888399d4e7588bfd 100644
--- a/charts/mongodb/values.yaml
+++ b/charts/mongodb/values.yaml
@@ -46,9 +46,9 @@ service:
   type: ClusterIP
   port: 27017
   ## The node port (only relevant for type NodePort)
-  nodePort: {}
+  nodePort:
   ## The cluster ip address (only relevant for type LoadBalancer)
-  clusterIP: {}
+  clusterIP:
 
 ## Resource limits and requests
 resources: {}
@@ -103,7 +103,7 @@ settings:
 ## Initializes a user database with name from dbName (default connected to test database if no dbName is specified)
 initUserDatabase:
   ## Database name for init
-  dbName: {}
+  dbName:
   ## JavaScript for initialization of new database
   script: |
 
@@ -112,10 +112,15 @@ initUserDatabase:
 # otherwise a dynamic persistent volume will be created with PVC name of this chart and the configured requestedSize and accessModes
 # If both parameters are missing a volatile emtpyDir volume will be used as RabbitMQ storage
 storage:
-  # Set persistentVolumenClaimName to reference an existing PVC
-  persistentVolumeClaimName: {}
-  # Alternative set requestedSize to define a size for a dynamically created PVC
-  requestedSize: {}
+  ## Set persistentVolumenClaimName to reference an existing PVC
+  persistentVolumeClaimName:
+
+  ## Alternative set requestedSize to define a size for a dynamically created PVC
+  requestedSize:
+
+  ## the storage class name
+  className:
+
+  ## Default access mode (ReadWriteOnce)
   accessModes:
     - ReadWriteOnce
-  className: {}
diff --git a/charts/postgres/Chart.yaml b/charts/postgres/Chart.yaml
index 800efe1fd0034b0037fecfee80bb51b4db6bba71..dd92248ff697728dda5fdc0dc406fb45d5f0ada3 100644
--- a/charts/postgres/Chart.yaml
+++ b/charts/postgres/Chart.yaml
@@ -7,6 +7,6 @@ type: application
 maintainers:
   - name: groundhog2k
 
-version: 0.2.3
+version: 0.2.4
 
 appVersion: "13.1"
diff --git a/charts/postgres/README.md b/charts/postgres/README.md
index be24ec3a26babe5d274c5e93059ad6a45224bf8f..3cd9d916d1b4ba16f9d325b3bd20080f6c449947 100644
--- a/charts/postgres/README.md
+++ b/charts/postgres/README.md
@@ -1,6 +1,6 @@
 # PostgreSQL
 
-![Version: 0.2.3](https://img.shields.io/badge/Version-0.2.3-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 13.1](https://img.shields.io/badge/AppVersion-13.1-informational?style=flat-square)
+![Version: 0.2.4](https://img.shields.io/badge/Version-0.2.4-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 13.1](https://img.shields.io/badge/AppVersion-13.1-informational?style=flat-square)
 
 A Helm chart for PostgreSQL on Kubernetes
 
@@ -97,6 +97,6 @@ $ helm uninstall my-release
 | settings.initDbArgs | string | `nil` | Optional init database arguments |
 | settings.superuserPassword | string | `nil` | Password of superuser (Random value if not specified) |
 | userDatabase | object | `{}` | Optional PostgreSQL user database |
-| userDatabase.name | string | `""` | Name of the user database |
-| userDatabase.user | string | `""` | User name with full access to user database|
-| userDatabase.password | string | `""` | Password of created user (Random value if not specified) |
+| userDatabase.name | string | `nil` | Name of the user database |
+| userDatabase.user | string | `nil` | User name with full access to user database|
+| userDatabase.password | string | `nil` | Password of created user (Random value if not specified) |
diff --git a/charts/postgres/values.yaml b/charts/postgres/values.yaml
index ca05d316f5e9ddf7fb2a267c659b917e786271c0..c5edb4a0401bbf861bfa39846846355ab18ddafe 100644
--- a/charts/postgres/values.yaml
+++ b/charts/postgres/values.yaml
@@ -43,9 +43,9 @@ service:
   type: ClusterIP
   port: 5432
   ## The node port (only relevant for type NodePort)
-  nodePort: {}
+  nodePort:
   ## The cluster ip address (only relevant for type LoadBalancer)
-  clusterIP: {}
+  clusterIP:
 
 resources: {}
   # limits:
@@ -114,13 +114,13 @@ customConfig: |-
 ## Storage parameters
 storage:
   ##  Set persistentVolumenClaimName to reference an existing PVC
-  persistentVolumeClaimName: {}
+  persistentVolumeClaimName:
 
   ## Alternative set requestedSize to define a size for a dynmaically created PVC
-  requestedSize: {}
+  requestedSize:
 
   ## the storage class name
-  className: {}
+  className:
 
   ## Default access mode (ReadWriteOnce)
   accessModes:
diff --git a/charts/rabbitmq/Chart.yaml b/charts/rabbitmq/Chart.yaml
index 7ecd3c324bf7b32aad5791efe62ec004425611db..b5fcd811d8b9db2d30d5a28f5e449164b4cc85ef 100644
--- a/charts/rabbitmq/Chart.yaml
+++ b/charts/rabbitmq/Chart.yaml
@@ -7,6 +7,6 @@ type: application
 maintainers:
   - name: groundhog2k
 
-version: 0.2.1
+version: 0.2.2
 
 appVersion: 3.8.9
diff --git a/charts/rabbitmq/README.md b/charts/rabbitmq/README.md
index 70453544678c33724e37c95cc16369f101a890b3..8918719f16b83d501ad8193d72f13754c9273104 100644
--- a/charts/rabbitmq/README.md
+++ b/charts/rabbitmq/README.md
@@ -1,6 +1,6 @@
 # RabbitMQ
 
-![Version: 0.2.1](https://img.shields.io/badge/Version-0.2.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 3.8.9](https://img.shields.io/badge/AppVersion-3.8.9-informational?style=flat-square)
+![Version: 0.2.2](https://img.shields.io/badge/Version-0.2.2-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 3.8.9](https://img.shields.io/badge/AppVersion-3.8.9-informational?style=flat-square)
 
 A Helm chart for a RabbitMQ cluster on Kubernetes
 
diff --git a/charts/rabbitmq/values.yaml b/charts/rabbitmq/values.yaml
index d706904e19c422bc46a3dd413cfce9b5411a013f..fa3e239a364f67d49125a8e8586e3dee21501eb6 100644
--- a/charts/rabbitmq/values.yaml
+++ b/charts/rabbitmq/values.yaml
@@ -40,13 +40,13 @@ service:
   amqp:
     port: 5672
     ## The node port (only relevant for type NodePort)
-    nodePort: {}
+    nodePort:
   mgmt:
     port: 15672
     ## The node port (only relevant for type NodePort)
-    nodePort: {}
+    nodePort:
   ## The cluster ip address (only relevant for type LoadBalancer)
-  clusterIP: {}
+  clusterIP:
 
 ## Ingress configuration
 ingress:
@@ -152,13 +152,13 @@ clustering:
 ## Storage parameters
 storage:
   ## Set persistentVolumenClaimName to reference an existing PVC
-  persistentVolumeClaimName: {}
+  persistentVolumeClaimName:
 
   ## Alternative set requestedSize to define a size for a dynamically created PVC
-  requestedSize: {}
+  requestedSize:
 
   ## the storage class name
-  className: {}
+  className:
 
   ## Default access mode (ReadWriteOnce)
   accessModes:
diff --git a/charts/redis/Chart.yaml b/charts/redis/Chart.yaml
index b86f8c1a1bf53c48a8e8c7241584ce95e68e0ccc..b9c821b089afb43759b7b9e40dfbd82a1200403a 100644
--- a/charts/redis/Chart.yaml
+++ b/charts/redis/Chart.yaml
@@ -8,7 +8,7 @@ maintainers:
   - name: groundhog2k
 
 # This is the chart version
-version: 0.2.2
+version: 0.2.3
 
 # This is the version number of the application being deployed.
 appVersion: "6.0.9"
diff --git a/charts/redis/README.md b/charts/redis/README.md
index 17db66176976a6f6da6cc6ca0231da82185d6df4..d6cf86bf51051ce900405f1eab7cdbd5c0af74ac 100644
--- a/charts/redis/README.md
+++ b/charts/redis/README.md
@@ -1,6 +1,6 @@
 # Redis
 
-![Version: 0.2.2](https://img.shields.io/badge/Version-0.2.2-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 6.0.9](https://img.shields.io/badge/AppVersion-6.0.9-informational?style=flat-square)
+![Version: 0.2.3](https://img.shields.io/badge/Version-0.2.3-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 6.0.9](https://img.shields.io/badge/AppVersion-6.0.9-informational?style=flat-square)
 
 A Helm chart for Redis on Kubernetes
 
diff --git a/charts/redis/values.yaml b/charts/redis/values.yaml
index dc796e57dd7f218e82505e9f596e474bd0988b7d..a5f700d44885a747595fef93442b4dd191f3576a 100644
--- a/charts/redis/values.yaml
+++ b/charts/redis/values.yaml
@@ -45,9 +45,9 @@ service:
   type: ClusterIP
   port: 6379
   ## The node port (only relevant for type NodePort)
-  nodePort: {}
+  nodePort:
   ## The cluster ip address (only relevant for type LoadBalancer)
-  clusterIP: {}
+  clusterIP:
 
 ## Resource limits and requests
 resources: {}
@@ -92,13 +92,13 @@ redisConfig: |
 ## Storage parameters
 storage:
   ##  Set persistentVolumenClaimName to reference an existing PVC
-  persistentVolumeClaimName: {}
+  persistentVolumeClaimName:
 
   ## Alternative set requestedSize to define a size for a dynmaically created PVC
-  requestedSize: {}
+  requestedSize:
 
   ## the storage class name
-  className: {}
+  className:
 
   ## Default access mode (ReadWriteOnce)
   accessModes: