Implement ironic_neutron_agent and baremetal driver

This patch implements changes to support the ironic_neutron_agent
and baremetal plugin for Neutron (Ironic).

Depends-On: https://review.opendev.org/c/openstack/openstack-ansible/+/813006
Change-Id: If37161aaee17d72d9463b361489d5febac434e83

defaults/main.yml

@@ -67,6 +67,8 @@ networking_bgpvpn_git_repo: https://opendev.org/openstack/networking-bgpvpn
 networking_bgpvpn_git_install_branch: master
 ceilometer_git_repo: https://opendev.org/openstack/ceilometer
 ceilometer_git_install_branch: master
+networking_baremetal_git_repo: https://opendev.org/openstack/networking-baremetal
+networking_baremetal_git_install_branch: master
 networking_generic_switch_git_repo: https://opendev.org/openstack/networking-generic-switch
 networking_generic_switch_git_install_branch: master
 networking_nsx_git_repo: https://opendev.org/x/vmware-nsx
@@ -145,6 +147,8 @@ neutron_calico_felix_ini_overrides: {}
 neutron_calico_felix_init_overrides: {}
 neutron_dhcp_agent_ini_overrides: {}
 neutron_dhcp_agent_init_overrides: {}
+neutron_ironic_neutron_agent_ini_overrides: {}
+neutron_ironic_neutron_agent_init_overrides: {}
 neutron_l3_agent_ini_overrides: {}
 neutron_l3_agent_init_overrides: {}
 neutron_linuxbridge_agent_ini_overrides: {}

releasenotes/notes/networking-baremetal-plugin-agent-support-cfb06fa4faf85bdc.yaml

@@ -0,0 +1,8 @@
+---
+features:
+  - |
+    Support for the networking-baremetal mechanism driver and agent has been implemented.
+    The ironic-neutron-agent is a neutron agent that populates the host to physical network
+    mapping for baremetal nodes in neutron. Neutron uses this to calculate the segment to
+    host mapping information. This feature may be enabled by adding ``ml2.baremetal``
+    to the ``neutron_plugin_types`` list in ``/etc/openstack_deploy/user_variables.yml``.

templates/plugins/ml2/ironic_neutron_agent.ini.j2

@@ -0,0 +1,11 @@
+# {{ ansible_managed }}
+
+[ironic]
+project_domain_name = Default
+project_name = service
+user_domain_name = Default
+password = {{ ironic_service_password }}
+username = ironic
+auth_url = {{ keystone_service_internalurl }}
+auth_type = password
+os_region = RegionOne

vars/main.yml

@@ -69,6 +69,9 @@ neutron_proprietary_nuage_pip_packages:
   - nuage-openstack-neutronclient
   - nuagenetlib
 
+neutron_optional_baremetal_pip_packages:
+  - "git+{{ networking_baremetal_git_repo }}@{{ networking_baremetal_git_install_branch }}#egg=networking-baremetal"
+
 neutron_optional_ngs_pip_packages:
   - "git+{{ networking_generic_switch_git_repo }}@{{ networking_generic_switch_git_install_branch }}#egg=networking-generic-switch"
 
@@ -110,6 +113,11 @@ neutron_venv_packages: >-
          (neutron_services['neutron-server']['group'] in group_names) %}
   {%-     set _ = pkg_list.extend(neutron_optional_ngs_pip_packages) %}
   {%- endif %}
+  {%- if ('ml2.baremetal' in neutron_plugin_types) and
+         ((neutron_services['neutron-server']['group'] in group_names) or
+          (neutron_services['ironic-neutron-agent']['group'] in group_names)) %}
+  {%-     set _ = pkg_list.extend(neutron_optional_baremetal_pip_packages) %}
+  {%- endif %}
   {%- if (neutron_plugin_type.split('.')[-1] == "nsx") and
          (neutron_services['neutron-server']['group'] in group_names) %}
   {%-     set _ = pkg_list.extend(neutron_optional_nsx_pip_packages) %}
@@ -218,6 +226,12 @@ neutron_plugins:
     plugin_conf_ini_overrides: "{{ neutron_ml2_conf_genericswitch_ini_overrides }}"
     plugin_core: ml2
     plugin_ini: plugins/ml2/ml2_conf_genericswitch.ini
+  ml2.baremetal:
+    drivers_type: "vlan"
+    mechanisms: "baremetal"
+    plugin_conf_ini_overrides: "{{ neutron_ironic_neutron_agent_ini_overrides }}"
+    plugin_core: ml2
+    plugin_ini: plugins/ml2/ironic_neutron_agent.ini
   vmware.nsx:
     plugin_core: vmware_nsx.plugin.NsxPolicyPlugin
     plugin_ini: plugins/vmware/nsx.ini
@@ -508,6 +522,17 @@ neutron_services:
     config_type: "ini"
     init_config_overrides: "{{ neutron_ovn_metadata_agent_init_overrides }}"
     start_order: 3
+  ironic-neutron-agent:
+    group: ironic_neutron_agent
+    service_name: ironic-neutron-agent
+    service_en: "{{ 'ml2.baremetal' in neutron_plugin_types }}"
+    service_conf_path: "{{ neutron_conf_version_dir }}"
+    service_conf: plugins/ml2/ironic_neutron_agent.ini
+    execstarts: "{{ neutron_bin }}/ironic-neutron-agent --config-file {{ neutron_conf_dir }}/neutron.conf --config-file {{ neutron_conf_dir }}/plugins/ml2/ml2_conf.ini --config-file {{ neutron_conf_dir }}/plugins/ml2/ironic_neutron_agent.ini"
+    config_overrides: "{{ neutron_ironic_neutron_agent_ini_overrides }}"
+    config_type: "ini"
+    init_config_overrides: "{{ neutron_ironic_neutron_agent_init_overrides }}"
+    start_order: 3
 
 ###
 ### Overrides for services where required