Add infra_proxy_* classes in reclass storage

This will deploy proxy (Nginx) nodes for both OpenStack and StackLight
services.
diff --git a/reclass/storage/system/infra_proxy_cluster.yml b/reclass/storage/system/infra_proxy_cluster.yml
new file mode 100644
index 0000000..f7c7932
--- /dev/null
+++ b/reclass/storage/system/infra_proxy_cluster.yml
@@ -0,0 +1,29 @@
+parameters:
+  _param:
+    infra_proxy_node01_hostname: prx01
+    infra_proxy_node02_hostname: prx02
+  reclass:
+    storage:
+      node:
+        infra_proxy_node01:
+          name: ${_param:infra_proxy_node01_hostname}
+          domain: ${_param:cluster_domain}
+          classes:
+          - cluster.${_param:cluster_name}.openstack.proxy
+          - cluster.${_param:cluster_name}.stacklight.proxy
+          params:
+            salt_master_host: ${_param:reclass_config_master}
+            linux_system_codename: trusty
+            single_address: ${_param:infra_proxy_node01_address}
+            keepalived_vip_priority: 102
+        infra_proxy_node02:
+          name: ${_param:infra_proxy_node02_hostname}
+          domain: ${_param:cluster_domain}
+          classes:
+          - cluster.${_param:cluster_name}.openstack.proxy
+          - cluster.${_param:cluster_name}.stacklight.proxy
+          params:
+            salt_master_host: ${_param:reclass_config_master}
+            linux_system_codename: trusty
+            single_address: ${_param:infra_proxy_node02_address}
+            keepalived_vip_priority: 101
diff --git a/reclass/storage/system/infra_proxy_single.yml b/reclass/storage/system/infra_proxy_single.yml
new file mode 100644
index 0000000..a245e8c
--- /dev/null
+++ b/reclass/storage/system/infra_proxy_single.yml
@@ -0,0 +1,16 @@
+parameters:
+  _param:
+    openstack_proxy_node01_hostname: prx01
+  reclass:
+    storage:
+      node:
+        openstack_proxy_node01:
+          name: ${_param:openstack_proxy_node01_hostname}
+          domain: ${_param:cluster_domain}
+          classes:
+          - cluster.${_param:cluster_name}.openstack.proxy
+          - cluster.${_param:cluster_name}.stacklight.proxy
+          params:
+            salt_master_host: ${_param:reclass_config_master}
+            linux_system_codename: trusty
+            single_address: ${_param:openstack_proxy_node01_address}
diff --git a/salt/control/cluster/infra_proxy_cluster.yml b/salt/control/cluster/infra_proxy_cluster.yml
new file mode 100644
index 0000000..c82a947
--- /dev/null
+++ b/salt/control/cluster/infra_proxy_cluster.yml
@@ -0,0 +1,22 @@
+parameters:
+  salt:
+    control:
+      size:
+        infra.proxy:
+          cpu: 32
+          ram: 65536
+          disk_profile: small
+          net_profile: default
+      cluster:
+        internal:
+          domain: ${_param:cluster_domain}
+          engine: virt
+          node:
+            prx01:
+              provider: kvm01.${_param:cluster_domain}
+              image: ${_param:salt_control_trusty_image}
+              size: infra.proxy
+            prx02:
+              provider: kvm02.${_param:cluster_domain}
+              image: ${_param:salt_control_trusty_image}
+              size: infra.proxy
diff --git a/salt/control/cluster/infra_proxy_single.yml b/salt/control/cluster/infra_proxy_single.yml
new file mode 100644
index 0000000..0cfb741
--- /dev/null
+++ b/salt/control/cluster/infra_proxy_single.yml
@@ -0,0 +1,18 @@
+parameters:
+  salt:
+    control:
+      size:
+        infra.proxy:
+          cpu: 32
+          ram: 65536
+          disk_profile: small
+          net_profile: default
+      cluster:
+        internal:
+          domain: ${_param:cluster_domain}
+          engine: virt
+          node:
+            prx01:
+              provider: kvm01.${_param:cluster_domain}
+              image: ${_param:salt_control_trusty_image}
+              size: infra.proxy