Updates ghost app to follow new wild-app patterns.

apps/ghost/ingress.yaml

@@ -1,19 +1,18 @@
----
 apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: ghost
-  namespace: {{ .Values.namespace }}
+  namespace: ghost
   annotations:
     kubernetes.io/ingress.class: "traefik"
     cert-manager.io/cluster-issuer: "letsencrypt-prod"
     external-dns.alpha.kubernetes.io/cloudflare-proxied: "false"
-    external-dns.alpha.kubernetes.io/target: "cloud.payne.io"
+    external-dns.alpha.kubernetes.io/target: {{ .cloud.domain }}
     external-dns.alpha.kubernetes.io/ttl: "60"
     traefik.ingress.kubernetes.io/redirect-entry-point: https
 spec:
   rules:
-    - host: {{ .Values.ghost.host }}
+    - host: {{ .apps.ghost.domain }}
       http:
         paths:
           - path: /
@@ -25,5 +24,5 @@ spec:
                   number: 80
   tls:
     - hosts:
-        - {{ .Values.ghost.host }}
-      secretName: ghost-tls
+        - {{ .apps.ghost.domain }}
+      secretName: {{ .apps.ghost.tlsSecretName }}