fixed templating nil pointer error

Author: adrian-salazar-klarrio

charts/zookeeper/templates/post-install-upgrade-hooks.yaml

@@ -38,9 +38,9 @@ roleRef:
 
 apiVersion: v1
 kind: ServiceAccount
-{{- if or .Values.global.imagePullSecrets .Values.serviceAccount.imagePullSecrets }}
+{{- if .Values.global.imagePullSecrets }}
 imagePullSecrets:
-{{- range (default .Values.global.imagePullSecrets .Values.serviceAccount.imagePullSecrets) }}
+{{- range .Values.global.imagePullSecrets }}
   - name: {{ . }}
 {{- end }}
 {{- end }}

charts/zookeeper/values.yaml

@@ -8,6 +8,11 @@ image:
 
 triggerRollingRestart: false
 
+global:
+  # Lists the secrets you need to use to pull zookeeper image from a private registry.
+  imagePullSecrets: []
+  # - private-registry-key
+
 domainName:
 labels: {}
 ports: []