Add subnet host_routes to output of OS::TripleO::*::Ports::Port

Adds the host_routes on the neutron ports subnet to the output
of the Tripleo Ports template. This will allow use of get_attr
in the role to pass routes for a subnet to NetworkConfig.

Partial: blueprint tripleo-routed-networks-templates
Change-Id: I46896153ea59ae0a6a8dff0208de2b0d168927ae

network/ports/ctlplane_vip.yaml

@@ -70,3 +70,7 @@ outputs:
             - - {get_attr: [VipPort, fixed_ips, 0, ip_address]}
               - '/'
               - {str_split: ['/', {get_attr: [VipPort, subnets, 0, cidr]}, 1]}
+  host_routes:
+    description: Host routes of the ports subnet
+    value:
+          get_attr: [VipPort, subnets, 0, host_routes]

network/ports/noop.yaml

@@ -61,3 +61,6 @@ outputs:
             - - {get_param: ControlPlaneIP}
               - '/'
               - {get_param: ControlPlaneSubnetCidr}
+  host_routes: # Here for compatibility
+    description: Host routes of the ports subnet
+    value: []

network/ports/port.j2

@@ -91,4 +91,7 @@ outputs:
             - - {get_attr: [{{network.name}}Port, fixed_ips, 0, ip_address]}
               - '/'
               - {str_split: ['/', {get_attr: [{{network.name}}Port, subnets, 0, cidr]}, 1]}
-
+  host_routes:
+    description: Host routes of the ports subnet
+    value:
+          get_attr: [{{network.name}}Port, subnets, 0, host_routes]

network/ports/vip.yaml

@@ -78,3 +78,7 @@ outputs:
             - - {get_attr: [VipPort, fixed_ips, 0, ip_address]}
               - '/'
               - {str_split: ['/', {get_attr: [VipPort, subnets, 0, cidr]}, 1]}
+  host_routes:
+    description: Host routes of the ports subnet
+    value:
+          get_attr: [VipPort, subnets, 0, host_routes]

network/ports/vip_v6.yaml

@@ -83,3 +83,7 @@ outputs:
             - - {get_attr: [VipPort, fixed_ips, 0, ip_address]}
               - '/'
               - {str_split: ['/', {get_attr: [VipPort, subnets, 0, cidr]}, 1]}
+  host_routes:
+    description: Host routes of the ports subnet
+    value:
+          get_attr: [VipPort, subnets, 0, host_routes]

releasenotes/notes/os-tripleo-ports-output-hostroutes-3c710bd9f5641101.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Adds ``host_routes`` of the ports neutron subnet to output of
+    ``OS::TripleO::{{role.name}}::Ports::{{network.name}}Port`` resources.