Add support for "neutron" Ironic networking plugin

This enabled a lot of advanced networking features (see the release note).
Related to blueprint ironic-driver-composition

Change-Id: I20ea994fec36d73e618107b5c3594ec1c0f8cb93
Depends-On: I72eb8b06cca14073d1d1c82462fb702630e02de3

puppet/services/ironic-conductor.yaml

@@ -32,6 +32,15 @@ parameters:
                  created yet) and should be changed to an actual UUID in
                  a post-deployment stack update.
     type: string
+  IronicDefaultNetworkInterface:
+    default: 'flat'
+    description: Network interface implementation to use by default.
+                 Set to "flat" (the default) to use one flat provider network.
+                 Set to "neutron" to make Ironic interact with the Neutron
+                 ML2 driver to enable other network types and certain
+                 advances networking features. Requires
+                 IronicProvisioningNetwork to be correctly set.
+    type: string
   IronicEnabledDrivers:
     default: ['pxe_ipmitool', 'pxe_drac', 'pxe_ilo']
     description: Enabled Ironic drivers
@@ -48,6 +57,15 @@ parameters:
     description: The password for the Ironic service and db account, used by the Ironic services
     type: string
     hidden: true
+  IronicProvisioningNetwork:
+    default: 'provisioning'
+    description: Name or UUID of the *overcloud* network used for provisioning
+                 of bare metal nodes, if IronicDefaultNetworkInterface is
+                 set to "neutron". The default value of "provisioning" can be
+                 left during the initial deployment (when no networks are
+                 created yet) and should be changed to an actual UUID in
+                 a post-deployment stack update.
+    type: string
   MonitoringSubscriptionIronicConductor:
     default: 'overcloud-ironic-conductor'
     type: string
@@ -72,6 +90,7 @@ outputs:
           - ironic::conductor::api_url: {get_param: [EndpointMap, IronicInternal, uri_no_suffix]}
             ironic::conductor::cleaning_disk_erase: {get_param: IronicCleaningDiskErase}
             ironic::conductor::cleaning_network: {get_param: IronicCleaningNetwork}
+            ironic::conductor::provisioning_network: {get_param: IronicProvisioningNetwork}
             ironic::conductor::enabled_drivers: {get_param: IronicEnabledDrivers}
             # We need an endpoint containing a real IP, not a VIP here
             ironic_conductor_http_host: {get_param: [ServiceNetMap, IronicNetwork]}
@@ -93,6 +112,8 @@ outputs:
             # NOTE(dtantsur): UEFI only works with iPXE currently for us
             ironic::drivers::pxe::uefi_pxe_config_template: '$pybasedir/drivers/modules/ipxe_config.template'
             ironic::drivers::pxe::uefi_pxe_bootfile_name: 'ipxe.efi'
+            ironic::drivers::interfaces::enabled_network_interfaces: ['flat', 'neutron']
+            ironic::drivers::interfaces::default_network_interface: {get_param: IronicDefaultNetworkInterface}
             tripleo.ironic_conductor.firewall_rules:
               '134 ironic conductor TFTP':
                 dport: 69

releasenotes/notes/ironic-neutron-integration-76c4f9e0d10785e4.yaml

@@ -0,0 +1,9 @@
+---
+features:
+  - |
+    Allow setting the Ironic provisioning network UUID or name via new
+    ``IronicProvisioningNetwork`` configuration.
+  - |
+    Enable support for "neutron" Ironic networking plugin, enabling advanced
+    integration with Neutron, such as VLAN/VXLAN network support, bonding and
+    security groups.