diff --git a/charts/common/Chart.yaml b/charts/common/Chart.yaml
index 5f5fad8..614af97 100644
--- a/charts/common/Chart.yaml
+++ b/charts/common/Chart.yaml
@@ -15,4 +15,4 @@ type: library
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.3.1
+version: 0.4.0
diff --git a/charts/common/templates/_envFromRef.yaml b/charts/common/templates/_envFromRef.yaml
index 57eb3c9..fab3758 100644
--- a/charts/common/templates/_envFromRef.yaml
+++ b/charts/common/templates/_envFromRef.yaml
@@ -1,10 +1,20 @@
 {{- define "common.envFromRef.tpl" -}}
-{{- if or (or (or (.Values.vars) (.Values.secretEnabled)) .Values.sealedSecrets) .Values.secretName -}}
+{{- if or (or (or (or (or (.Values.vars) (.Values.secretEnabled)) .Values.sealedSecrets) .Values.secretName) .Values.existingConfigMaps) .Values.existingSecrets -}}
 envFrom: &envFrom
 {{- if .Values.vars }}
   - configMapRef:
       name: {{ template "common.robustName" .Release.Name }}
 {{- end }}
+{{- range .Values.existingSecrets }}
+  - secretRef:
+      name: {{ .name }}
+      optional: {{ .optional | default false }}
+{{- end }}
+{{- range .Values.existingConfigMaps }}
+  - configMapRef:
+      name: {{ .name }}
+      optional: {{ .optional | default false }}
+{{- end }}
 {{- if .Values.secretEnabled }}
   - secretRef:
       name: {{ include "common.robustName" $.Release.Name }}
diff --git a/charts/cron-job/Chart.lock b/charts/cron-job/Chart.lock
index dea9c02..8309305 100644
--- a/charts/cron-job/Chart.lock
+++ b/charts/cron-job/Chart.lock
@@ -1,6 +1,6 @@
 dependencies:
 - name: common
   repository: file://../common
-  version: 0.3.1
-digest: sha256:64689b29ef8b2262efbd5d49bccf40f798698d426dcfdc7c632aaf183a8cc681
-generated: "2023-08-18T08:34:24.144108449+02:00"
+  version: 0.4.0
+digest: sha256:d4eccd332ada7362f429e04b82022f5605a02e2d3aa7b9fdf8adaf4f6c9e03eb
+generated: "2023-10-20T10:53:13.982995773+02:00"
diff --git a/charts/cron-job/Chart.yaml b/charts/cron-job/Chart.yaml
index 3267c1c..c0c2cfd 100644
--- a/charts/cron-job/Chart.yaml
+++ b/charts/cron-job/Chart.yaml
@@ -19,5 +19,5 @@ version: 0.58.0
 
 dependencies:
   - name: common
-    version: 0.3.1
+    version: 0.4.0
     repository: file://../common
diff --git a/charts/cron-job/charts/common-0.3.1.tgz b/charts/cron-job/charts/common-0.3.1.tgz
deleted file mode 100644
index 5fb517d..0000000
Binary files a/charts/cron-job/charts/common-0.3.1.tgz and /dev/null differ
diff --git a/charts/cron-job/charts/common-0.4.0.tgz b/charts/cron-job/charts/common-0.4.0.tgz
new file mode 100644
index 0000000..25e1fd4
Binary files /dev/null and b/charts/cron-job/charts/common-0.4.0.tgz differ
diff --git a/charts/onechart/Chart.lock b/charts/onechart/Chart.lock
index f5151d6..57a2876 100644
--- a/charts/onechart/Chart.lock
+++ b/charts/onechart/Chart.lock
@@ -1,6 +1,6 @@
 dependencies:
 - name: common
   repository: file://../common
-  version: 0.3.1
-digest: sha256:64689b29ef8b2262efbd5d49bccf40f798698d426dcfdc7c632aaf183a8cc681
-generated: "2023-08-18T08:31:18.469039683+02:00"
+  version: 0.4.0
+digest: sha256:d4eccd332ada7362f429e04b82022f5605a02e2d3aa7b9fdf8adaf4f6c9e03eb
+generated: "2023-10-20T10:52:47.237955041+02:00"
diff --git a/charts/onechart/Chart.yaml b/charts/onechart/Chart.yaml
index 2f9539f..cefae42 100644
--- a/charts/onechart/Chart.yaml
+++ b/charts/onechart/Chart.yaml
@@ -19,5 +19,5 @@ version: 0.58.0
 
 dependencies:
   - name: common
-    version: 0.3.1
+    version: 0.4.0
     repository: file://../common
diff --git a/charts/onechart/charts/common-0.3.1.tgz b/charts/onechart/charts/common-0.3.1.tgz
deleted file mode 100644
index 5fb517d..0000000
Binary files a/charts/onechart/charts/common-0.3.1.tgz and /dev/null differ
diff --git a/charts/onechart/charts/common-0.4.0.tgz b/charts/onechart/charts/common-0.4.0.tgz
new file mode 100644
index 0000000..25e1fd4
Binary files /dev/null and b/charts/onechart/charts/common-0.4.0.tgz differ
diff --git a/charts/onechart/templates/deployment.yaml b/charts/onechart/templates/deployment.yaml
index 6a73480..e9b1ae0 100644
--- a/charts/onechart/templates/deployment.yaml
+++ b/charts/onechart/templates/deployment.yaml
@@ -138,7 +138,7 @@ spec:
             - -c
             - {{ .Values.sidecar.command | quote }}
           {{- end }}
-          {{- if or (or (.Values.vars) (.Values.secretEnabled)) .Values.sealedSecrets }}
+          {{- if or (or (or (or (or (.Values.vars) (.Values.secretEnabled)) .Values.sealedSecrets) .Values.secretName) .Values.existingConfigMaps) .Values.existingSecrets }}
           envFrom: *envFrom
           {{- end }}
           {{- if or (or (.Values.volumes) (.Values.sealedFileSecrets)) .Values.fileSecrets }}
diff --git a/charts/onechart/tests/deployment_configmap_test.yaml b/charts/onechart/tests/deployment_configmap_test.yaml
index 0869615..dbb869b 100644
--- a/charts/onechart/tests/deployment_configmap_test.yaml
+++ b/charts/onechart/tests/deployment_configmap_test.yaml
@@ -16,5 +16,23 @@ tests:
               name: release-name
   - it: Should not reference configmap if vars are not set
     asserts:
-      - isNull:
+     - isNull:
+         path: spec.template.spec.containers[0].envFrom
+
+  - it: Should reference to existing configmaps
+    set:
+      existingConfigMaps:
+      - name: firstcm
+        optional: true
+      - name: secondcm
+        optional: true
+    asserts:
+      - contains:
           path: spec.template.spec.containers[0].envFrom
+          content:
+            configMapRef:
+              name: firstcm
+              optional: true
+            configMapRef:
+              name: secondcm
+              optional: true        
diff --git a/charts/onechart/tests/deployment_secret_test.yaml b/charts/onechart/tests/deployment_secret_test.yaml
index 5dfc580..64d3ef2 100644
--- a/charts/onechart/tests/deployment_secret_test.yaml
+++ b/charts/onechart/tests/deployment_secret_test.yaml
@@ -31,3 +31,20 @@ tests:
           content:
             secretRef:
               name: release-name
+  - it: Should reference to existing secrets
+    set:
+      existingSecrets:
+      - name: firstsecret
+        optional: true
+      - name: secondsecret
+        optional: true
+    asserts:
+      - contains:
+          path: spec.template.spec.containers[0].envFrom
+          content:
+            secretRef:
+              name: firstsecret
+              optional: true
+            secretRef:
+              name: secondsecret
+              optional: true