OpenStack Wallaby : Configure Neutron OVN (Compute Node)2021/04/20 |
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Configure OpenStack Network Service (Neutron).
This example is based on the environment like follows.
Configure Neutron services with Open Virtual Network (OVN).
------------+---------------------------+---------------------------+------------
| | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ Control Node ] | | [ Network Node ] | | [ Compute Node ] |
| | | | | |
| MariaDB RabbitMQ | | Open vSwitch | | Libvirt |
| Memcached httpd | | Neutron Server | | Nova Compute |
| Keystone Glance | | OVN-Northd | | Open vSwitch |
| Nova API | | | | OVN Metadata Agent |
| | | | | OVN-Controller |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Install Neutron services on Compute Node. |
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root@node01:~# apt -y install neutron-common neutron-plugin-ml2 neutron-ovn-metadata-agent ovn-host openvswitch-switch
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| [2] | Configure Neutron services. |
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root@node01:~# mv /etc/neutron/neutron.conf /etc/neutron/neutron.conf.org
root@node01:~#
vi /etc/neutron/neutron.conf # create new [DEFAULT] core_plugin = ml2 service_plugins = ovn-router auth_strategy = keystone state_path = /var/lib/neutron allow_overlapping_ips = True # RabbitMQ connection info transport_url = rabbit://openstack:password@10.0.0.30 # Keystone auth info [keystone_authtoken] www_authenticate_uri = http://10.0.0.30:5000 auth_url = http://10.0.0.30:5000 memcached_servers = 10.0.0.30:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = neutron password = servicepassword [nova] auth_url = http://10.0.0.30:5000 auth_type = password project_domain_name = default user_domain_name = default region_name = RegionOne project_name = service username = nova password = servicepassword [oslo_concurrency] lock_path = $state_path/lock
root@node01:~#
chmod 640 /etc/neutron/neutron.conf root@node01:~# chgrp neutron /etc/neutron/neutron.conf
root@node01:~#
mv /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugins/ml2/ml2_conf.ini.org root@node01:~# vi /etc/neutron/plugins/ml2/ml2_conf.ini # create new
[DEFAULT]
debug = false
[ml2]
type_drivers = flat,geneve
tenant_network_types = geneve
mechanism_drivers = ovn
extension_drivers = port_security
overlay_ip_version = 4
[ml2_type_geneve]
vni_ranges = 1:65536
max_header_size = 38
[ml2_type_flat]
flat_networks = *
[securitygroup]
enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
[ovn]
# IP address of Network node
ovn_nb_connection = tcp:10.0.0.50:6641
ovn_sb_connection = tcp:10.0.0.50:6642
ovn_l3_scheduler = leastloaded
ovn_metadata_enabled = True
root@network:~#
chmod 640 /etc/neutron/plugins/ml2/ml2_conf.ini root@network:~# chgrp neutron /etc/neutron/plugins/ml2/ml2_conf.ini
root@node01:~#
vi /etc/neutron/neutron_ovn_metadata_agent.ini [DEFAULT] # line 2 : add # specify Nova API Host nova_metadata_host = 10.0.0.30 # specify any secret key you like metadata_proxy_shared_secret = metadata_secret # line 230 : change [ovs] ovsdb_connection = tcp:127.0.0.1:6640 # add to the end [agent] root_helper = sudo neutron-rootwrap /etc/neutron/rootwrap.conf [ovn] # IP address of Network node ovn_sb_connection = tcp:10.0.0.50:6642
root@node01:~#
vi /etc/default/openvswitch-switch # line 8 : uncomment and add OVS_CTL_OPTS= "--ovsdb-server-options='--remote=ptcp:6640:127.0.0.1'"
root@node01:~#
vi /etc/nova/nova.conf # add into [DEFAULT] section use_neutron = True vif_plugging_is_fatal = True vif_plugging_timeout = 300 # add to the end : Neutron auth info # the value of [metadata_proxy_shared_secret] is the same with the one in [neutron_ovn_metadata_agent.ini] [neutron] auth_url = http://10.0.0.30:5000 auth_type = password project_domain_name = default user_domain_name = default region_name = RegionOne project_name = service username = neutron password = servicepassword service_metadata_proxy = True metadata_proxy_shared_secret = metadata_secret |
| [3] | Start Neutron services. |
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root@node01:~#
systemctl restart openvswitch-switch ovn-controller ovn-host
root@node01:~#
root@node01:~# ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini root@node01:~# systemctl restart neutron-ovn-metadata-agent root@node01:~# systemctl restart nova-compute
ovs-vsctl set open . external-ids:ovn-remote=tcp:10.0.0.50:6642 root@node01:~# ovs-vsctl set open . external-ids:ovn-encap-type=geneve root@node01:~# ovs-vsctl set open . external-ids:ovn-encap-ip=10.0.0.51 |
| [4] | Add settings on Control Node and verify status of Neutron services. |
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root@dlp ~(keystone)#
vi /etc/nova/nova.conf # add to the end : Neutron auth info # the value of [metadata_proxy_shared_secret] is the same with the one in [neutron_ovn_metadata_agent.ini] [neutron] auth_url = http://10.0.0.30:5000 auth_type = password project_domain_name = default user_domain_name = default region_name = RegionOne project_name = service username = neutron password = servicepassword service_metadata_proxy = True metadata_proxy_shared_secret = metadata_secret
root@dlp ~(keystone)#
systemctl restart nova-api
# verify status (OK if following output is displayed) root@dlp ~(keystone)# openstack network agent list +--------------------------------------+----------------------+------------------+-------------------+-------+-------+----------------------------+ | ID | Agent Type | Host | Availability Zone | Alive | State | Binary | +--------------------------------------+----------------------+------------------+-------------------+-------+-------+----------------------------+ | 1889d299-f487-4281-a174-5849c639525d | OVN Controller agent | node01.srv.world | | :-) | UP | ovn-controller | | 493c3677-1e6e-524d-b240-f366e43a88a0 | OVN Metadata agent | node01.srv.world | | :-) | UP | neutron-ovn-metadata-agent | +--------------------------------------+----------------------+------------------+-------------------+-------+-------+----------------------------+ |
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