istio: allow to change tls cipher suites and headers

Signed-off-by: Pascal Sthamer <10992664+P4sca1@users.noreply.github.com>

charts/shuffle/templates/istio/gateway.yaml

@@ -32,6 +32,9 @@ spec:
       tls:
         credentialName: {{ .Values.istio.gateway.https.tlsCredentialName }}
         mode: SIMPLE
+        {{- with .Values.istio.gateway.https.tlsCipherSuites }}
+        cipherSuites: {{- include "common.tplvalues.render" ( dict "value" . "context" $ ) | nindent 10 }}
+        {{- end }}
 	{{- end }}
     {{- if .Values.istio.gateway.extraServers }}
     {{- include "common.tplvalues.render" (dict "value" .Values.istio.gateway.extraServers "context" $) | nindent 4 }}

charts/shuffle/templates/istio/virtual-service.yaml

@@ -14,7 +14,8 @@ spec:
   gateways:
     - {{ include "common.names.fullname" . }}
   http:
-    - match:
+    - name: backend
+      match:
         - uri:
             prefix: /api
       route:
@@ -22,9 +23,16 @@ spec:
             host: {{ include "shuffle.backend.name" . }}
             port:
               number: {{ .Values.backend.containerPorts.http }}
-    - route:
+      {{- with .Values.istio.virtualService.backendHeaders }}
+      headers: {{- include "common.tplvalues.render" ( dict "value" . "context" $ ) | nindent 8 }}
+      {{- end }}
+    - name: frontend
+      route:
         - destination:
             host: {{ include "shuffle.frontend.name" . }}
             port:
               number: {{ .Values.frontend.containerPorts.http }}
+      {{- with .Values.istio.virtualService.frontendHeaders }}
+      headers: {{- include "common.tplvalues.render" ( dict "value" . "context" $ ) | nindent 8 }}
+      {{- end }}
     {{- end }}