diff --git a/charts/longhorn/templates/postupgrade-job.yaml b/charts/longhorn/templates/postupgrade-job.yaml
index 56efd38..d504dbd 100644
--- a/charts/longhorn/templates/postupgrade-job.yaml
+++ b/charts/longhorn/templates/postupgrade-job.yaml
@@ -17,7 +17,7 @@
     spec:
       containers:
       - name: longhorn-post-upgrade
-        image: {{ template "registry_url" . }}{{ .Values.image.longhorn.manager.repository }}:{{ .Values.image.longhorn.manager.tag }}
+        image: {{ with (coalesce .Values.global.imageRegistry (include "registry_url" .) .Values.image.longhorn.manager.registry) }}{{ . }}/{{ end }}{{ .Values.image.longhorn.manager.repository }}:{{ .Values.image.longhorn.manager.tag }}
         imagePullPolicy: {{ .Values.image.pullPolicy }}
         command:
         - longhorn-manager
@@ -27,10 +27,23 @@
           valueFrom:
             fieldRef:
               fieldPath: metadata.namespace
+        {{- include "longhorn.timezoneEnv" . | nindent 8 }}
       restartPolicy: OnFailure
-      {{- if .Values.privateRegistry.registrySecret }}
+      {{- with (coalesce .Values.global.imagePullSecrets .Values.privateRegistry.registrySecret) }}
       imagePullSecrets:
-      - name: {{ .Values.privateRegistry.registrySecret }}
+        {{- $imagePullSecrets := list }}
+        {{- if kindIs "string" . }}
+          {{- $imagePullSecrets = append $imagePullSecrets (dict "name" .) }}
+        {{- else }}
+          {{- range . }}
+            {{- if kindIs "string" . }}
+                {{- $imagePullSecrets = append $imagePullSecrets (dict "name" .) }}
+            {{- else }}
+                {{- $imagePullSecrets = append $imagePullSecrets . }}
+            {{- end }}
+          {{- end }}
+        {{- end }}
+        {{- toYaml $imagePullSecrets | nindent 8 }}
       {{- end }}
       {{- if .Values.longhornManager.priorityClass }}
       priorityClassName: {{ .Values.longhornManager.priorityClass | quote }}