Parametrize the kube-dns --federations command line argument in the manifest.

This parameter is later substituted with the environment variable during
the build process.

build/common.sh

@@ -949,6 +949,9 @@ function kube::release::package_kube_manifests_tarball() {
   objects=$(cd "${KUBE_ROOT}/cluster/saltbase/salt/kube-dns" && find . \( -name \*.yaml -or -name \*.yaml.in -or -name \*.json \) | grep -v demo)
   mkdir -p "${dst_dir}/dns"
   tar c -C "${KUBE_ROOT}/cluster/saltbase/salt/kube-dns" ${objects} | tar x -C "${dst_dir}/dns"
+  if [[ "${FEDERATION:-}" == "true" ]]; then
+    sed -i 's/{{ pillar\['"'"'federations_domain_map'"'"'\] }}/- --federations="'"${FEDERATIONS_DOMAIN_MAP}"'"/g' "${dst_dir}/dns/skydns-rc.yaml.in"
+  fi
 
   # This is for coreos only. ContainerVM, GCI, or Trusty does not use it.
   cp -r "${KUBE_ROOT}/cluster/gce/coreos/kube-manifests"/* "${release_stage}/"

cluster/saltbase/salt/kube-dns/skydns-rc.yaml.base

@@ -75,6 +75,7 @@ spec:
         # command = "/kube-dns"
         - --domain=__PILLAR__DNS__DOMAIN__.
         - --dns-port=10053
+        __PILLAR__FEDERATIONS__DOMAIN__MAP__
         ports:
         - containerPort: 10053
           name: dns-local

cluster/saltbase/salt/kube-dns/skydns-rc.yaml.in

@@ -75,6 +75,7 @@ spec:
         # command = "/kube-dns"
         - --domain={{ pillar['dns_domain'] }}.
         - --dns-port=10053
+        {{ pillar['federations_domain_map'] }}
         ports:
         - containerPort: 10053
           name: dns-local

cluster/saltbase/salt/kube-dns/skydns-rc.yaml.sed

@@ -75,6 +75,7 @@ spec:
         # command = "/kube-dns"
         - --domain=$DNS_DOMAIN.
         - --dns-port=10053
+        $FEDERATIONS_DOMAIN_MAP
         ports:
         - containerPort: 10053
           name: dns-local

cluster/saltbase/salt/kube-dns/transforms2salt.sed

@@ -1,4 +1,5 @@
 s/__PILLAR__DNS__SERVER__/{{ pillar['dns_server'] }}/g
 s/__PILLAR__DNS__REPLICAS__/{{ pillar['dns_replicas'] }}/g
 s/__PILLAR__DNS__DOMAIN__/{{ pillar['dns_domain'] }}/g
+s/__PILLAR__FEDERATIONS__DOMAIN__MAP__/{{ pillar['federations_domain_map'] }}/g
 s/__MACHINE_GENERATED_WARNING__/Warning: This is a file generated from the base underscore template file: __SOURCE_FILENAME__/g

cluster/saltbase/salt/kube-dns/transforms2sed.sed

@@ -1,4 +1,5 @@
 s/__PILLAR__DNS__SERVER__/$DNS_SERVER_IP/g
 s/__PILLAR__DNS__REPLICAS__/$DNS_REPLICAS/g
 s/__PILLAR__DNS__DOMAIN__/$DNS_DOMAIN/g
+s/__PILLAR__FEDERATIONS__DOMAIN__MAP__/$FEDERATIONS_DOMAIN_MAP/g
 s/__MACHINE_GENERATED_WARNING__/Warning: This is a file generated from the base underscore template file: __SOURCE_FILENAME__/g