Add CoreDNS host port

- Add CoreDNS support a host listener for DNS resolution as
  needed by MAAS

Change-Id: Ieba09384320f9841433a9b773478bc703afd62dd

deployment_files/global/v1.0u/software/charts/kubernetes/dns/coredns.yaml

@@ -25,6 +25,44 @@ metadata:
         path: .images.kubernetes.coredns
       dest:
         path: .values.images
+
+    # Zones
+    - src:
+        schema: pegleg/CommonAddresses/v1
+        name: common-addresses
+        path: .dns.cluster_domain
+      dest:
+        path: .values.conf.coredns.corefile
+        pattern: 'CLUSTER_DOMAIN'
+    - src:
+        schema: pegleg/CommonAddresses/v1
+        name: common-addresses
+        path: .kubernetes.service_cidr
+      dest:
+        path: .values.conf.coredns.corefile
+        pattern: 'SERVICE_CIDR'
+    - src:
+        schema: pegleg/CommonAddresses/v1
+        name: common-addresses
+        path: .kubernetes.pod_cidr
+      dest:
+        path:  .values.conf.coredns.corefile
+        pattern: 'POD_CIDR'
+
+    - src:
+        schema: pegleg/CommonAddresses/v1
+        name: common-addresses
+        path: .dns.upstream_servers[0]
+      dest:
+        path: .values.conf.coredns.corefile
+        pattern: 'UPSTREAM1'
+    - src:
+        schema: pegleg/CommonAddresses/v1
+        name: common-addresses
+        path: .dns.upstream_servers[1]
+      dest:
+        path: .values.conf.coredns.corefile
+        pattern: 'UPSTREAM2'
 data:
   chart_name: coredns
   release: coredns
@@ -34,6 +72,26 @@ data:
     timeout: 600
   upgrade:
     no_hooks: true
+  values:
+    conf:
+      coredns:
+        # TODO(alanmeadows) this needs to be adjusted to use substition
+        corefile: |
+          .:53 {
+              errors
+              health
+              autopath @kubernetes
+              kubernetes CLUSTER_DOMAIN SERVICE_CIDR POD_CIDR {
+                pods insecure
+                fallthrough in-addr.arpa ip6.arpa
+                upstream UPSTREAM1
+                upstream UPSTREAM2
+              }
+              prometheus :9153
+              proxy . UPSTREAM1
+              proxy . UPSTREAM2
+              cache 30
+          }
   dependencies:
     - coredns-htk
 ---