make hosts optional in chart

Author: juliuste

kubernetes/.charts/simple-app/Chart.yaml

@@ -1,4 +1,4 @@
 apiVersion: v2
 name: simple-app
-version: 3.0.1
+version: 3.1.0
 description: Provides a deployment, service and ingress to expose one container at a given domain

kubernetes/.charts/simple-app/templates/ingress.yaml

@@ -1,4 +1,5 @@
 {{- $dot := . }}
+{{- if .Values.hosts -}}
 apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
@@ -32,3 +33,4 @@ spec:
                 port:
                   number: 80
   {{- end }}
+{{- end -}}