try kustomize overlays

clickhouse/kustomization.yaml

@@ -0,0 +1,22 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+helmCharts:
+- name: clickhouse
+  repo: https://charts.pascaliske.dev
+  version: 0.4.0
+  releaseName: clickhouse
+  valuesFile: clickhouseValues.yaml
+
+patches:
+  - target:
+      kind: StatefulSet
+      name: clickhouse
+    patch: |-
+      - op: add
+        path: /spec/template/spec/containers/0/volumeMounts/-
+        value:
+          name: config-volume
+          mountPath: /etc/clickhouse-server/users.d/custom-users.xml
+          subPath: custom-users.xml
+          readOnly: true