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diff --git a/kubernetes/common/mongodb/common/templates/validations/_cassandra.tpl b/kubernetes/common/mongodb/common/templates/validations/_cassandra.tpl
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+++ b/kubernetes/common/mongodb/common/templates/validations/_cassandra.tpl
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+{{/*
+Copyright VMware, Inc.
+SPDX-License-Identifier: APACHE-2.0
+*/}}
+
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Validate Cassandra required passwords are not empty.
+
+Usage:
+{{ include "common.validations.values.cassandra.passwords" (dict "secret" "secretName" "subchart" false "context" $) }}
+Params:
+  - secret - String - Required. Name of the secret where Cassandra values are stored, e.g: "cassandra-passwords-secret"
+  - subchart - Boolean - Optional. Whether Cassandra is used as subchart or not. Default: false
+*/}}
+{{- define "common.validations.values.cassandra.passwords" -}}
+  {{- $existingSecret := include "common.cassandra.values.existingSecret" . -}}
+  {{- $enabled := include "common.cassandra.values.enabled" . -}}
+  {{- $dbUserPrefix := include "common.cassandra.values.key.dbUser" . -}}
+  {{- $valueKeyPassword := printf "%s.password" $dbUserPrefix -}}
+
+  {{- if and (or (not $existingSecret) (eq $existingSecret "\"\"")) (eq $enabled "true") -}}
+    {{- $requiredPasswords := list -}}
+
+    {{- $requiredPassword := dict "valueKey" $valueKeyPassword "secret" .secret "field" "cassandra-password" -}}
+    {{- $requiredPasswords = append $requiredPasswords $requiredPassword -}}
+
+    {{- include "common.validations.values.multiple.empty" (dict "required" $requiredPasswords "context" .context) -}}
+
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for existingSecret.
+
+Usage:
+{{ include "common.cassandra.values.existingSecret" (dict "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether Cassandra is used as subchart or not. Default: false
+*/}}
+{{- define "common.cassandra.values.existingSecret" -}}
+  {{- if .subchart -}}
+    {{- .context.Values.cassandra.dbUser.existingSecret | quote -}}
+  {{- else -}}
+    {{- .context.Values.dbUser.existingSecret | quote -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for enabled cassandra.
+
+Usage:
+{{ include "common.cassandra.values.enabled" (dict "context" $) }}
+*/}}
+{{- define "common.cassandra.values.enabled" -}}
+  {{- if .subchart -}}
+    {{- printf "%v" .context.Values.cassandra.enabled -}}
+  {{- else -}}
+    {{- printf "%v" (not .context.Values.enabled) -}}
+  {{- end -}}
+{{- end -}}
+
+{{/*
+Auxiliary function to get the right value for the key dbUser
+
+Usage:
+{{ include "common.cassandra.values.key.dbUser" (dict "subchart" "true" "context" $) }}
+Params:
+  - subchart - Boolean - Optional. Whether Cassandra is used as subchart or not. Default: false
+*/}}
+{{- define "common.cassandra.values.key.dbUser" -}}
+  {{- if .subchart -}}
+    cassandra.dbUser
+  {{- else -}}
+    dbUser
+  {{- end -}}
+{{- end -}}