make hostname a top level parameter

mailman3/templates/NOTES.txt

@@ -1,6 +1,6 @@
 {{- if .Values.ingress.enabled }}
 Application URL:
-  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ .Values.ingress.host }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ .Values.hostname }}
 {{- else if contains "NodePort" .Values.service.type }}
 Get the application URL by running these commands:
   export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "mailman3.fullname" . }})

mailman3/templates/core.yaml

@@ -39,6 +39,8 @@ spec:
           image: "{{ .Values.core.image.repository }}:{{ .Values.core.image.tag | default .Chart.AppVersion }}"
           imagePullPolicy: {{ .Values.core.image.pullPolicy }}
           env:
+#            - name: TZ
+#              value: 'Europe/Berlin'
             - name: HYPERKITTY_API_KEY
               value: {{ .Values.hyperkittyApiKey }}
             - name: HYPERKITTY_URL

mailman3/templates/ingress.yaml

@@ -19,11 +19,11 @@ spec:
   {{- if .Values.ingress.tls }}
   tls:
     - hosts:
-      - {{ .Values.ingress.host }}
+      - {{ .Values.hostname }}
       secretName: {{ include "mailman3.fullname" . }}-certificate
   {{- end }}
   rules:
-  - host: {{ .Values.ingress.host | quote }}
+  - host: {{ .Values.hostname | quote }}
     http:
       paths:
       - path: /

mailman3/templates/web.yaml

@@ -49,7 +49,7 @@ spec:
               value: http://{{ include "mailman3.fullname" . }}-web.{{ .Release.Namespace }}.svc.{{ $clusterDomain }}:80
             {{- if .Values.ingress.enabled }}
             - name: SERVE_FROM_DOMAIN
-              value: {{ .Values.ingress.host | quote }}
+              value: {{ .Values.hostname | quote }}
             {{- end }}
             - name: DATABASE_URL
               value: sqlite://///opt/mailman-web-data/mailmanweb.db