diff --git a/charts/postgresql/templates/read/metrics-configmap.yaml b/charts/postgresql/templates/read/metrics-configmap.yaml
new file mode 100644
index 0000000..b00a6ec
--- /dev/null
+++ b/charts/postgresql/templates/read/metrics-configmap.yaml
@@ -0,0 +1,16 @@
+{{- if and .Values.metrics.enabled .Values.metrics.customMetrics (eq .Values.architecture "replication") }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ printf "%s-metrics" (include "postgresql.readReplica.fullname" .) }}
+  namespace: {{ .Release.Namespace | quote }}
+  labels: {{- include "common.labels.standard" . | nindent 4 }}
+    {{- if .Values.commonLabels }}
+    {{- include "common.tplvalues.render" ( dict "value" .Values.commonLabels "context" $ ) | nindent 4 }}
+    {{- end }}
+  {{- if .Values.commonAnnotations }}
+  annotations: {{- include "common.tplvalues.render" ( dict "value" .Values.commonAnnotations "context" $ ) | nindent 4 }}
+  {{- end }}
+data:
+  custom-metrics.yaml: {{ toYaml .Values.metrics.customMetrics | quote }}
+{{- end }}