Add linuxbridge as option to ansible

Allows the user to configure neutron_plugin_agent value for Ansible.
Current allowed values are openvswitch and linuxbridge.

Implements: blueprint ansible-neutron-linuxbridge

Change-Id: I0572464a5459d2f9da09b6da22db16e240511f99

ansible/roles/neutron/defaults/main.yml

@@ -37,6 +37,11 @@ docker_neutron_openvswitch_agent_image: "{{ docker_neutron_registry }}{{ docker_
 docker_neutron_openvswitch_agent_tag: "{{ openstack_release }}"
 docker_neutron_openvswitch_agent_image_full: "{{ docker_neutron_openvswitch_agent_image }}:{{ docker_neutron_openvswitch_agent_tag }}"
 
+kolla_neutron_linuxbridge_agent_container_name: "neutron-linuxbridge-agent"
+docker_neutron_linuxbridge_agent_image: "{{ docker_neutron_registry }}{{ docker_neutron_namespace }}/{{ kolla_neutron_base_distro }}-{{ kolla_neutron_install_type }}-{{ kolla_neutron_linuxbridge_agent_container_name }}"
+docker_neutron_linuxbridge_agent_tag: "{{ openstack_release }}"
+docker_neutron_linuxbridge_agent_image_full: "{{ docker_neutron_linuxbridge_agent_image }}:{{ docker_neutron_linuxbridge_agent_tag }}"
+
 kolla_openvswitch_db_container_name: "ovs-db-server"
 docker_openvswitch_db_image: "{{ docker_neutron_registry }}{{ docker_neutron_namespace }}/{{ kolla_neutron_base_distro }}-{{ kolla_neutron_install_type }}-{{ kolla_openvswitch_db_container_name }}"
 docker_openvswitch_db_tag: "{{ openstack_release }}"

ansible/roles/neutron/tasks/config.yml

@@ -63,6 +63,12 @@
     config_dest: "{{ node_config_directory }}/{{ service_name }}/dhcp_agent.ini"
   when: inventory_hostname in groups['neutron-agents']
 
+- name: Copying over config(s)
+  template:
+    src: "dnsmasq.conf.j2"
+    dest: "{{ node_config_directory }}/neutron-agents/dnsmasq.conf"
+  when: inventory_hostname in groups['neutron-agents']
+
 - include: ../../config.yml
   vars:
     service_name: "neutron-agents"
@@ -101,7 +107,7 @@
 
 - include: ../../config.yml
   vars:
-    service_name: "neutron-openvswitch-agent"
+    service_name: "neutron-{{ neutron_plugin_agent }}-agent"
     config_source:
       - "roles/{{ project_name }}/templates/neutron.conf.j2"
       - "/etc/kolla/config/global.conf"
@@ -117,12 +123,11 @@
       - "{{ node_templates_directory }}/{{ service_name }}/{{ project_name }}.conf_augment"
       - "{{ node_templates_directory }}/{{ service_name }}/{{ service_name }}.conf_augment"
     config_dest: "{{ node_config_directory }}/{{ service_name }}/neutron.conf"
-  when: inventory_hostname in groups['neutron-agents'] or
-        inventory_hostname in groups['compute']
+  when: (inventory_hostname in groups['compute'] or inventory_hostname in groups['neutron-agents'])
 
 - include: ../../config.yml
   vars:
-    service_name: "neutron-openvswitch-agent"
+    service_name: "neutron-{{ neutron_plugin_agent }}-agent"
     config_source:
       - "roles/{{ project_name }}/templates/ml2_conf.ini.j2"
       - "/etc/kolla/config/{{ project_name }}/ml2_conf.ini"
@@ -130,5 +135,4 @@
       - "{{ node_templates_directory }}/{{ service_name }}/ml2_conf.ini_minimal"
       - "{{ node_templates_directory }}/{{ service_name }}/ml2_conf.ini_augment"
     config_dest: "{{ node_config_directory }}/{{ service_name }}/ml2_conf.ini"
-  when: inventory_hostname in groups['neutron-agents'] or
-        inventory_hostname in groups['compute']
+  when: (inventory_hostname in groups['compute'] or inventory_hostname in groups['neutron-agents'])

ansible/roles/neutron/tasks/start.yml

@@ -7,8 +7,8 @@
     container_name: "openvswitch_db"
     container_volumes:
       - "/run:/run"
-  when: inventory_hostname in groups['compute'] or
-        inventory_hostname in groups['neutron-agents']
+  when: (inventory_hostname in groups['compute'] or inventory_hostname in groups['neutron-agents'])
+        and neutron_plugin_agent == "openvswitch"
 
 - include: ../../start.yml
   vars:
@@ -20,13 +20,25 @@
     container_volumes:
       - "/run:/run"
       - "/lib/modules:/lib/modules:ro"
-  when: inventory_hostname in groups['compute'] or
-        inventory_hostname in groups['neutron-agents']
+  when: (inventory_hostname in groups['compute'] or inventory_hostname in groups['neutron-agents'])
+        and neutron_plugin_agent == "openvswitch"
 
 - name: Ensuring OVS bridge is properly setup
-  command: docker exec openvswitch_vswitchd /opt/kolla/ovs_ensure_configured.sh {{ neutron_bridge_name }} {{ neutron_interface }}
+  command: docker exec openvswitch_vswitchd /opt/kolla/ovs_ensure_configured.sh {{ neutron_bridge_name }} {{ neutron_external_interface }}
   register: status
   changed_when: status.stdout.find('changed') != -1
+  when: (inventory_hostname in groups['compute'] or inventory_hostname in groups['neutron-agents'])
+        and neutron_plugin_agent == "openvswitch"
+
+- include: ../../start.yml
+  vars:
+    container_environment:
+      KOLLA_CONFIG_STRATEGY: "{{ config_strategy }}"
+    container_image: "{{ docker_neutron_server_image_full }}"
+    container_name: "neutron_server"
+    container_volumes:
+      - "{{ node_config_directory }}/neutron-server/:/opt/kolla/neutron-server/:ro"
+  when: inventory_hostname in groups['neutron-server']
 
 - include: ../../start.yml
   vars:
@@ -39,8 +51,24 @@
       - "/run:/run"
       - "/lib/modules:/lib/modules:ro"
       - "{{ node_config_directory }}/neutron-openvswitch-agent/:/opt/kolla/neutron-openvswitch-agent/:ro"
-  when: inventory_hostname in groups['compute'] or
-        inventory_hostname in groups['neutron-agents']
+  when: (inventory_hostname in groups['compute'] or inventory_hostname in groups['neutron-agents'])
+        and neutron_plugin_agent == "openvswitch"
+
+- include: ../../start.yml
+  vars:
+    container_environment:
+      KOLLA_CONFIG_STRATEGY: "{{ config_strategy }}"
+      NEUTRON_BRIDGE: "br-ex"
+      NEUTRON_INTERFACE: "{{ neutron_external_interface }}"
+    container_image: "{{ docker_neutron_linuxbridge_agent_image_full }}"
+    container_name: "neutron_linuxbridge_agent"
+    container_privileged: "True"
+    container_volumes:
+      - "/run:/run"
+      - "/lib/modules:/lib/modules:ro"
+      - "{{ node_config_directory }}/neutron-linuxbridge-agent/:/opt/kolla/neutron-linuxbridge-agent/:ro"
+  when: (inventory_hostname in groups['compute'] or inventory_hostname in groups['neutron-agents'])
+        and neutron_plugin_agent == "linuxbridge"
 
 - include: ../../start.yml
   vars:
@@ -54,12 +82,3 @@
       - "{{ node_config_directory }}/neutron-agents/:/opt/kolla/neutron-agents/:ro"
   when: inventory_hostname in groups['neutron-agents']
 
-- include: ../../start.yml
-  vars:
-    container_environment:
-      KOLLA_CONFIG_STRATEGY: "{{ config_strategy }}"
-    container_image: "{{ docker_neutron_server_image_full }}"
-    container_name: "neutron_server"
-    container_volumes:
-      - "{{ node_config_directory }}/neutron-server/:/opt/kolla/neutron-server/:ro"
-  when: inventory_hostname in groups['neutron-server']

ansible/roles/neutron/templates/dhcp_agent.ini.j2

@@ -1,4 +1,4 @@
+# dhcp_agent.ini
 [DEFAULT]
-# DHCP Agent
-#dnsmasq_config_file = /etc/neutron/dnsmasq.conf
+dnsmasq_config_file = /etc/neutron/dnsmasq.conf
 dhcp_delete_namespaces = true

ansible/roles/neutron/templates/dnsmasq.conf.j2

@@ -0,0 +1,2 @@
+dhcp-option-force=26,1450
+log-facility=/var/log/neutron/dnsmasq.log

ansible/roles/neutron/templates/l3_agent.ini.j2

@@ -1,8 +1,6 @@
+# l3_agent.ini
 [DEFAULT]
-# L3 Agent
 router_delete_namespaces = true
-#router_distributed = true
 enable_metadata_proxy = true
 agent_mode = legacy
-external_network_bridge = br-ex
-#ha_vrrp_auth_password = c0b4e8f922a7b03d1def93b516da81d8103c83c2
+external_network_bridge =

ansible/roles/neutron/templates/metadata_agent.ini.j2

@@ -1,3 +1,4 @@
+# metadata_agent.ini
 [DEFAULT]
 nova_metadata_ip = {{ kolla_internal_address }}
 metadata_proxy_shared_secret = {{ metadata_secret }}

ansible/roles/neutron/templates/ml2_conf.ini.j2

@@ -1,10 +1,14 @@
-# TODO(SamYaple): Make entire file more configurable configurable
-
+# ml2_conf.ini
 [ml2]
 # Changing type_drivers after bootstrap can lead to database inconsistencies
 type_drivers = flat,vlan,vxlan
 tenant_network_types = vxlan
+
+{% if neutron_plugin_agent == "openvswitch" %}
 mechanism_drivers = openvswitch,l2population
+{% elif neutron_plugin_agent == "linuxbridge" %}
+mechanism_drivers = linuxbridge,l2population
+{% endif %}
 
 [ml2_type_vlan]
 #network_vlan_ranges = external:1000:1999
@@ -20,7 +24,11 @@ vni_ranges = 1:1000
 vxlan_group = 239.1.1.1
 
 [securitygroup]
+{% if neutron_plugin_agent == "openvswitch" %}
 firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
+{% elif neutron_plugin_agent == "linuxbridge" %}
+firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
+{% endif %}
 enable_ipset = true
 enable_security_group = true
 
@@ -28,8 +36,15 @@ enable_security_group = true
 tunnel_types = vxlan
 l2_population = true
 arp_responder = true
-#enable_distributed_routing = true
 
+{% if neutron_plugin_agent == "openvswitch" %}
 [ovs]
-local_ip = {{ hostvars[inventory_hostname]['ansible_' + tunnel_interface]['ipv4']['address'] }}
 bridge_mappings = physnet1:{{ neutron_bridge_name }}
+{% elif neutron_plugin_agent == "linuxbridge" %}
+[linux_bridge]
+physical_interface_mappings = physnet1:{{ neutron_external_interface }}
+
+[vxlan]
+l2_population = true
+{% endif %}
+local_ip = {{ hostvars[inventory_hostname]['ansible_' + tunnel_interface]['ipv4']['address'] }}

ansible/roles/neutron/templates/neutron.conf.j2

@@ -1,3 +1,4 @@
+# neutron.conf
 [DEFAULT]
 verbose = true
 debug = true
@@ -9,7 +10,11 @@ api_paste_config = /usr/share/neutron/api-paste.ini
 
 notification_driver = neutron.openstack.common.notifier.rpc_notifier
 
+{% if neutron_plugin_agent == "openvswitch" %}
 interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
+{% elif neutron_plugin_agent == "linuxbridge" %}
+interface_driver = neutron.agent.linux.interface.BridgeInterfaceDriver
+{% endif %}
 
 allow_overlapping_ips = true
 core_plugin = ml2

ansible/roles/nova/templates/nova.conf.j2

@@ -15,7 +15,12 @@ virt_type = kvm
 security_group_api = neutron
 network_api_class = nova.network.neutronv2.api.API
 firewall_driver = nova.virt.firewall.NoopFirewallDriver
+
+{% if neutron_plugin_agent == "openvswitch" %}
 linuxnet_interface_driver = nova.network.linux_net.LinuxOVSInterfaceDriver
+{% elif neutron_plugin_agent == "linuxbridge" %}
+linuxnet_interface_driver = nova.network.linux_net.BridgeInterfaceDriver
+{% endif %}
 
 compute_driver = libvirt.LibvirtDriver
 allow_resize_to_same_host = true
@@ -67,5 +72,5 @@ username = nova
 password = {{ nova_keystone_password }}
 
 [libvirt]
-connection_type = libivrt
+connection_type = libvirt
 inject_partition = -2

docker/common/neutron/neutron-linuxbridge-agent/config-external.sh

@@ -8,3 +8,13 @@ if [[ -f "$SOURCE" ]]; then
     chown ${OWNER}: $TARGET
     chmod 0644 $TARGET
 fi
+
+SOURCE="/opt/kolla/neutron-linuxbridge-agent/ml2_conf.ini"
+TARGET="/etc/neutron/plugins/ml2/ml2_conf.ini"
+OWNER="neutron"
+
+if [[ -f "$SOURCE" ]]; then
+    cp $SOURCE $TARGET
+    chown ${OWNER}: $TARGET
+    chmod 0644 $TARGET
+fi

docker/common/neutron/neutron-linuxbridge-agent/start.sh

@@ -2,7 +2,7 @@
 set -o errexit
 
 CMD="/usr/bin/neutron-linuxbridge-agent"
-ARGS="--config-file /etc/neutron/plugins/ml2/ml2_conf.ini --config-dir /etc/neutron"
+ARGS="--config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/ml2_conf.ini"
 
 # Loading common functions.
 source /opt/kolla/kolla-common.sh

docker/common/neutron/neutron-openvswitch-agent/start.sh

@@ -11,7 +11,4 @@ source /opt/kolla/config-sudoers.sh
 # Config-internal script exec out of this function, it does not return here.
 set_configs
 
-# Set !requiretty
-source /opt/kolla/config-sudoers.sh
-
 exec $CMD $ARGS

etc/kolla/globals.yml

@@ -54,13 +54,17 @@ docker_restart_policy_retry: "10"
 ####################
 # The interface to use for various services types
 network_interface: "eth0"
-neutron_interface: "eth1"
+neutron_external_interface: "eth1"
 
 # These can be adjusted for even more customization
 api_interface: "{{ network_interface }}"
 storage_interface: "{{ network_interface }}"
 tunnel_interface: "{{ network_interface }}"
 
+# Valid options are [ openvswitch, linuxbridge ]
+neutron_plugin_agent: "openvswitch"
+
+
 ####################
 # Openstack options
 ####################