diff --git a/kubernetes/common/mariadb-galera/templates/configmap.yaml b/kubernetes/common/mariadb-galera/templates/configmap.yaml
new file mode 100644
index 0000000..094a76c
--- /dev/null
+++ b/kubernetes/common/mariadb-galera/templates/configmap.yaml
@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "common.fullname" . }}-confd
+  namespace: {{ include "common.namespace" . }}
+data:
+{{ tpl (.Files.Glob "resources/config/mariadb/conf.d/*").AsConfig . | indent 2 }}
+---
+{{- if .Values.externalConfig }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "common.fullname" . }}-externalConfig
+  namespace: {{ include "common.namespace" . }}
+data:
+  my_extra.cnf: |-
+{{ toYaml .Values.externalConfig | indent 4 }}
+{{- end -}}
\ No newline at end of file