diff --git a/charts/mariadb/Chart.yaml b/charts/mariadb/Chart.yaml
index abaf7092f4620b80e235e69418aceb009e46c0a8..d6f1dd8e13a8fa51097821d834ffec2f01b77e67 100644
--- a/charts/mariadb/Chart.yaml
+++ b/charts/mariadb/Chart.yaml
@@ -7,6 +7,6 @@ type: application
 maintainers:
   - name: groundhog2k
 
-version: 0.4.2
+version: 0.2.19
 
-appVersion: "10.7.1"
+appVersion: "10.5.3"
diff --git a/charts/mariadb/README.md b/charts/mariadb/README.md
index 9fa9387caa8dcda8dc9e0009fc972a608a040408..61803f7a478e94518c33748d2924b4b179e34c12 100644
--- a/charts/mariadb/README.md
+++ b/charts/mariadb/README.md
@@ -1,6 +1,6 @@
 # MariaDB
 
-![Version: 0.4.2](https://img.shields.io/badge/Version-0.4.2-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 10.7.1](https://img.shields.io/badge/AppVersion-10.7.1-informational?style=flat-square)
+![Version: 0.2.19](https://img.shields.io/badge/Version-0.2.19-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 10.5.3](https://img.shields.io/badge/AppVersion-10.5.3-informational?style=flat-square)
 
 ## Changelog
 
@@ -58,6 +58,8 @@ helm uninstall my-release
 | image.repository | string | `"mariadb"` | Image name |
 | image.tag | string | `""` | Image tag |
 | imagePullSecrets | list | `[]` | Image pull secrets |
+| extraInitContainers | list | `[]` | Extra init containers |
+| extaContainers | list | `[]` | Extra containers for usage as sidecars |
 | startupProbe | object | `see values.yaml` | Startup probe configuration |
 | livenessProbe | object | `see values.yaml` | Liveness probe configuration |
 | readinessProbe | object | `see values.yaml` | Readiness probe configuration |
diff --git a/charts/mariadb/RELEASENOTES.md b/charts/mariadb/RELEASENOTES.md
index 931c1a009314262ffc7425e53a3c6cd151643236..51300c73419a8bc901991336ab7eda21630cecd1 100644
--- a/charts/mariadb/RELEASENOTES.md
+++ b/charts/mariadb/RELEASENOTES.md
@@ -4,6 +4,7 @@
 | :------------ | :---------- | :----------------- |
 | 0.2.17 | 10.5.13 | Implemented startupProbe support |
 | 0.2.18 | 10.5.13 | Implemented support for extra secrets and advanced configuration capabilites |
+| 0.2.19 | 10.5.13 | Implemented support for extra containers |
 | 0.3.1 | 10.6.5 | Implemented startupProbe support |
 | 0.3.2 | 10.6.5 | Implemented support for extra secrets and advanced configuration capabilites |
 | 0.4.1 | 10.7.1 | Implemented startupProbe support |
diff --git a/charts/mariadb/templates/statefulset.yaml b/charts/mariadb/templates/statefulset.yaml
index 159ce9c87df61197b01f42758ef301ac53699082..ae1287ac349c67b73fe2fc86dabbf7b8874525d8 100644
--- a/charts/mariadb/templates/statefulset.yaml
+++ b/charts/mariadb/templates/statefulset.yaml
@@ -65,6 +65,9 @@ spec:
             - mountPath: /configs
               name: configs
           command: [ "/initscripts/init.sh" ]
+      {{- with .Values.extraInitContainers }}
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
       containers:
         - name: {{ .Chart.Name }}
           {{- with .Values.securityContext  }}
@@ -183,6 +186,9 @@ spec:
             - secretRef:
                 name: {{ . }}
           {{- end }}
+      {{- with .Values.extraContainers }}
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}
diff --git a/charts/mariadb/values.yaml b/charts/mariadb/values.yaml
index c14ac50e1d1191d1593d52707a646ec6f2d31547..48524c5f415838e6b57e84224848a5454cdbba18 100644
--- a/charts/mariadb/values.yaml
+++ b/charts/mariadb/values.yaml
@@ -112,6 +112,12 @@ readinessProbe:
   successThreshold: 1
   periodSeconds: 10
 
+## Extra init containers
+extraInitContainers: []
+
+## Extra containers for usage as sidecars
+extraContainers: []
+
 ## Additional environment variables
 env: []
 
diff --git a/charts/mongodb/Chart.yaml b/charts/mongodb/Chart.yaml
index d61c28cabde95631dede63f2cd7e4540308a1f32..2dba857e7ce85823e68c8ed52fb1fb54444655da 100644
--- a/charts/mongodb/Chart.yaml
+++ b/charts/mongodb/Chart.yaml
@@ -7,6 +7,6 @@ type: application
 maintainers:
   - name: groundhog2k
 
-version: 0.4.3
+version: 0.2.17
 
-appVersion: "5.0.6"
+appVersion: "4.2.18"
diff --git a/charts/mongodb/README.md b/charts/mongodb/README.md
index 9bc126b4c46107637da97a1736df413bf2563bba..aad3653588b467529d9d91a1b2246f2a801e912b 100644
--- a/charts/mongodb/README.md
+++ b/charts/mongodb/README.md
@@ -1,6 +1,6 @@
 # MongoDB
 
-![Version: 0.4.3](https://img.shields.io/badge/Version-0.4.3-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 5.0.6](https://img.shields.io/badge/AppVersion-5.0.6-informational?style=flat-square)
+![Version: 0.2.17](https://img.shields.io/badge/Version-0.2.17-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 4.2.18](https://img.shields.io/badge/AppVersion-4.2.18-informational?style=flat-square)
 
 ## Changelog
 
@@ -58,6 +58,8 @@ helm uninstall my-release
 | image.repository | string | `"mongo"` | Image name |
 | image.tag | string | `""` | Image tag |
 | imagePullSecrets | list | `[]` | Image pull secrets |
+| extraInitContainers | list | `[]` | Extra init containers |
+| extaContainers | list | `[]` | Extra containers for usage as sidecars |
 | startupProbe | object | `see values.yaml` | Startup probe configuration |
 | livenessProbe | object | `see values.yaml` | Liveness probe configuration |
 | readinessProbe | object | `see values.yaml` | Readiness probe configuration |
diff --git a/charts/mongodb/RELEASENOTES.md b/charts/mongodb/RELEASENOTES.md
index 12a64d5c98351cf1b215258ce9d9a9487ddbc90d..95139b94b8238fe7f07be7455b6d3e2ddb4f3451 100644
--- a/charts/mongodb/RELEASENOTES.md
+++ b/charts/mongodb/RELEASENOTES.md
@@ -5,6 +5,7 @@
 | 0.2.14 | 4.2.14 | Implemented startupProbe support |
 | 0.2.15 | 4.2.18 | Upgraded to MongoDB 4.2.18 |
 | 0.2.16 | 4.2.18 | Implemented support for extra secrets and advanced configuration capabilites |
+| 0.2.17 | 4.2.18 | Implemented support for extra containers |
 | 0.3.8 | 4.4.11 | Implemented startupProbe support |
 | 0.3.9 | 4.4.12 | Upgraded to MongoDB 4.4.12 |
 | 0.3.10 | 4.4.13 | Implemented support for extra secrets and advanced configuration capabilites |
diff --git a/charts/mongodb/templates/statefulset.yaml b/charts/mongodb/templates/statefulset.yaml
index dcb4cb37fad272ce4b7894ba57a4cc4cca1eac28..32b049a8d1a7c75756b4ed175d9db8e91ad370ef 100644
--- a/charts/mongodb/templates/statefulset.yaml
+++ b/charts/mongodb/templates/statefulset.yaml
@@ -65,6 +65,9 @@ spec:
             - mountPath: /configs
               name: configs
           command: [ "/initscripts/init.sh" ]
+      {{- with .Values.extraInitContainers }}
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
       containers:
         - name: {{ .Chart.Name }}
           {{- with .Values.securityContext }}
@@ -175,6 +178,9 @@ spec:
             - name: {{ $secret.name }}
               mountPath: {{ $secret.mountPath }}
             {{- end }}
+      {{- with .Values.extraContainers }}
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}
diff --git a/charts/mongodb/values.yaml b/charts/mongodb/values.yaml
index c4c0da9611e1b7ccb4f2688c7aef6caa3d23d212..409c68524ae371dafc0f844b60c9a93a6f90bd29 100644
--- a/charts/mongodb/values.yaml
+++ b/charts/mongodb/values.yaml
@@ -112,6 +112,12 @@ affinity: {}
 ## Maximum number of revisions maintained in revision history
 revisionHistoryLimit:
 
+## Extra init containers
+extraInitContainers: []
+
+## Extra containers for usage as sidecars
+extraContainers: []
+
 ## Additional arguments for the container entrypoint process
 args: []
 
diff --git a/charts/postgres/Chart.yaml b/charts/postgres/Chart.yaml
index 6a986109b3773ed4c55d8c231ad460507b9daada..56513dc5bb727a0b2357d7b8a274eaec9ff2f4c4 100644
--- a/charts/postgres/Chart.yaml
+++ b/charts/postgres/Chart.yaml
@@ -7,6 +7,6 @@ type: application
 maintainers:
   - name: groundhog2k
 
-version: 0.3.6
+version: 0.2.18
 
-appVersion: "14.1"
+appVersion: "13.5"
diff --git a/charts/postgres/README.md b/charts/postgres/README.md
index ffe4ee7db2fe9466781b1c2b54eab7bc702b49b0..b99280679c4a3b1b91d9f9c83b0aae923a9f5f31 100644
--- a/charts/postgres/README.md
+++ b/charts/postgres/README.md
@@ -1,6 +1,6 @@
 # PostgreSQL
 
-![Version: 0.3.6](https://img.shields.io/badge/Version-0.3.6-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 14.1](https://img.shields.io/badge/AppVersion-14.1-informational?style=flat-square)
+![Version: 0.2.18](https://img.shields.io/badge/Version-0.2.18-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 13.5](https://img.shields.io/badge/AppVersion-13.5-informational?style=flat-square)
 
 ## Changelog
 
@@ -62,6 +62,8 @@ helm uninstall my-release
 | image.repository | string | `"postgres"` | Image name |
 | image.tag | string | `""` | Image tag |
 | imagePullSecrets | list | `[]` | Image pull secrets |
+| extraInitContainers | list | `[]` | Extra init containers |
+| extaContainers | list | `[]` | Extra containers for usage as sidecars |
 | startupProbe | object | `see values.yaml` | Startup probe configuration |
 | livenessProbe | object | `see values.yaml` | Liveness probe configuration |
 | readinessProbe | object | `see values.yaml` | Readiness probe configuration |
diff --git a/charts/postgres/RELEASENOTES.md b/charts/postgres/RELEASENOTES.md
index 24f7994aca5cefbca576bb183b0b8cfb40bba9fa..2114b3a93ed0af96345ab51b6b19a578f806aa6d 100644
--- a/charts/postgres/RELEASENOTES.md
+++ b/charts/postgres/RELEASENOTES.md
@@ -4,6 +4,7 @@
 | :------------ | :---------- | :----------------- |
 | 0.2.16 | 13.5 | Fixes bug with wrong mounted customConfig #811 |
 | 0.2.17 | 13.5 | Implemented support for extra secrets and advanced configuration capabilites |
+| 0.2.18 | 13.5 | Implemented support for extra containers |
 | 0.3.4 | 14.1 | Fixes bug with wrong mounted customConfig #811 |
 | 0.3.5 | 14.1 | Updated readme and release notes |
 | 0.3.6 | 14.1 | Implemented support for extra secrets and advanced configuration capabilites |
diff --git a/charts/postgres/templates/statefulset.yaml b/charts/postgres/templates/statefulset.yaml
index 16ce700a960d47675fc9678a9d1033717f697b3e..690f68e0c198348288ae4db0bb09b91d533d6388 100644
--- a/charts/postgres/templates/statefulset.yaml
+++ b/charts/postgres/templates/statefulset.yaml
@@ -65,6 +65,9 @@ spec:
             - mountPath: /configs
               name: configs
           command: [ "/initscripts/init.sh" ]
+      {{- with .Values.extraInitContainers }}
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
       containers:
         - name: {{ .Chart.Name }}
           {{- with .Values.securityContext }}
@@ -185,6 +188,9 @@ spec:
             - name: {{ $secret.name }}
               mountPath: {{ $secret.mountPath }}
             {{- end }}
+      {{- with .Values.extraContainers }}
+      {{- toYaml . | nindent 8 }}
+      {{- end }}
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}
diff --git a/charts/postgres/values.yaml b/charts/postgres/values.yaml
index daa0108895599de998129cb85599c5b0e5b23421..26fd988729d4d65cff8f4ed1376d37cc00d991be 100644
--- a/charts/postgres/values.yaml
+++ b/charts/postgres/values.yaml
@@ -111,6 +111,12 @@ readinessProbe:
   successThreshold: 1
   periodSeconds: 10
 
+## Extra init containers
+extraInitContainers: []
+
+## Extra containers for usage as sidecars
+extraContainers: []
+
 ## Additional environment variables
 env: []