[stable/ambassador] support targetPort specification (#11574)

Signed-off-by: Anthony Jones <anthony@wildinterior.co>

stable/ambassador/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: 0.50.2
 description: A Helm chart for Datawire Ambassador
 name: ambassador
-version: 1.1.3
+version: 1.1.4
 icon: https://www.getambassador.io/images/logo.png
 home: https://www.getambassador.io/
 sources:

stable/ambassador/templates/service.yaml

@@ -23,7 +23,7 @@ spec:
   ports:
     {{- if .Values.service.http.enabled }}
     - port: {{ .Values.service.http.port }}
-      targetPort: http
+      targetPort: {{ .Values.service.http.targetPort }}
       protocol: TCP
       name: http
       {{- with .Values.service.http.nodePort }}
@@ -32,7 +32,7 @@ spec:
     {{- end }}
     {{- if .Values.service.https.enabled }}
     - port: {{ .Values.service.https.port }}
-      targetPort: https
+      targetPort: {{ .Values.service.https.targetPort }}
       protocol: TCP
       name: https
       {{- with .Values.service.https.nodePort }}