Create types for baremetal networking

This change defines two new template resource types:
- OS::OVB::BaremetalNetworks for any extra networks required by
  baremetal nodes, the default keeps the current behaviour of adding
  no new networks
- OS::OVB::BaremetalPorts for building a list of ports to attach to
  each baremetal server. The default keeps the current behaviour of
  creating a single port on the provision network.

Future changes will have alternatives to the defaults for network
isolation

templates/baremetal-networks-none.yaml

@@ -0,0 +1,5 @@
+heat_template_version: 2014-10-16
+
+outputs:
+  networks:
+    value: {}

templates/baremetal-ports-default.yaml

@@ -0,0 +1,29 @@
+heat_template_version: 2014-10-16
+
+parameters:
+
+  baremetal_prefix:
+    type: string
+
+  provision_net:
+    type: string
+
+  suffix:
+    type: string
+
+resources:
+
+  provision_port:
+    type: OS::Neutron::Port
+    properties:
+      name:
+        list_join:
+        - ''
+        - - {get_param: baremetal_prefix}
+          - {get_param: suffix}
+      network: {get_param: provision_net}
+
+outputs:
+  ports:
+    value:
+    - {port: {get_resource: provision_port}}

templates/resource-registry.yaml

@@ -3,3 +3,5 @@ resource_registry:
   OS::OVB::BaremetalEnvironment: virtual-baremetal.yaml
   OS::OVB::UndercloudFloating: undercloud-floating.yaml
   OS::OVB::PrivateNetwork: private-net-existing.yaml
+  OS::OVB::BaremetalNetworks: baremetal-networks-none.yaml
+  OS::OVB::BaremetalPorts: baremetal-ports-default.yaml

templates/virtual-baremetal-servers.yaml

@@ -22,15 +22,12 @@ parameters:
 
 resources:
 
-  baremetal_port:
-    type: OS::Neutron::Port
+  baremetal_ports:
+    type: OS::OVB::BaremetalPorts
     properties:
-      name:
-        list_join:
-        - ''
-        - - {get_param: baremetal_prefix}
-          - {get_param: suffix}
-      network: {get_param: provision_net}
+      suffix: {get_param: suffix}
+      baremetal_prefix: {get_param: baremetal_prefix}
+      provision_net: {get_param: provision_net}
 
   baremetal_server:
     type: OS::Nova::Server
@@ -39,8 +36,7 @@ resources:
       image: {get_param: baremetal_image}
       config_drive: false
       key_name: {get_param: key_name}
-      networks:
-      - port: {get_resource: baremetal_port}
+      networks: {get_attr: [baremetal_ports, ports]}
       name:
         list_join:
         - ''

templates/virtual-baremetal.yaml

@@ -137,8 +137,12 @@ resources:
             $openstackbmc_script: {get_file: ../bin/openstackbmc}
           template: {get_file: ../bin/install_openstackbmc.sh}
 
+  baremetal_networks:
+    type: OS::OVB::BaremetalNetworks
+
   openstack_baremetal_servers:
     type: OS::Heat::ResourceGroup
+    depends_on: baremetal_networks
     properties:
       count: {get_param: node_count}
       resource_def: