add namespace override support to Helm chart

helm/ntfy/templates/_helpers.tpl

@@ -60,3 +60,14 @@ Create the name of the service account to use
 {{- default "default" .Values.serviceAccount.name }}
 {{- end }}
 {{- end }}
+
+{{/*
+Determine the namespace to use, allowing for a namespace override.
+*/}}
+{{- define "ntfy.namespace" -}}
+  {{- if .Values.namespaceOverride }}
+    {{- .Values.namespaceOverride }}
+  {{- else }}
+    {{- .Release.Namespace }}
+  {{- end }}
+{{- end }}

helm/ntfy/values.yaml

@@ -13,6 +13,7 @@ image:
 imagePullSecrets: []
 nameOverride: ""
 fullnameOverride: ""
+namespaceOverride: "monitoring"
 
 serviceAccount:
   # Specifies whether a service account should be created