OpenStack Xena : Configure Neutron OVN (Network Node)2021/11/22 |
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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 |
+-----------------------+ +-----------------------+ +-----------------------+
|
| [1] |
Create a user or endpoints and Database for Neutron on Control Node, refer to here.
On the example of the link, Neutron Server (API) is installed on Control Node, but on this example, Neutron Server is installed on Network Node, so replace the Endpoints of Neutron to [10.0.0.50]. |
| [2] | Install Neutron Server on Network Node. |
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[root@network ~]# dnf --enablerepo=centos-openstack-xena,powertools,epel -y install openstack-neutron openstack-neutron-ml2 ovn2.13-central
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| [3] | Configure Neutron Server. |
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[root@network ~]# mv /etc/neutron/neutron.conf /etc/neutron/neutron.conf.org
[root@network ~]#
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 notify_nova_on_port_status_changes = True notify_nova_on_port_data_changes = 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 [database] connection = mysql+pymysql://neutron:password@10.0.0.30/neutron_ml2 [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/tmp
[root@network ~]#
chmod 640 /etc/neutron/neutron.conf [root@network ~]# chgrp neutron /etc/neutron/neutron.conf
[root@network ~]#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # add to the end
[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 this 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 ~]#
vi /etc/sysconfig/openvswitch # line 28 : add OPTIONS=" --ovsdb-server-options='--remote=ptcp:6640:127.0.0.1' "
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| [4] | If SELinux is enabled, change policy. |
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[root@network ~]# dnf --enablerepo=centos-openstack-xena -y install openstack-selinux [root@network ~]# setsebool -P neutron_can_network on [root@network ~]# setsebool -P haproxy_connect_any on [root@network ~]# setsebool -P daemons_enable_cluster_mode on
[root@network ~]#
vi ovsofctl.te # create new
module ovsofctl 1.0;
require {
type neutron_t;
type neutron_exec_t;
type neutron_t;
type dnsmasq_t;
type tracefs_t;
type openvswitch_load_module_t;
type var_run_t;
type openvswitch_t;
class sock_file write;
class file execute_no_trans;
class dir search;
class capability { dac_override sys_rawio };
}
#============= neutron_t ==============
allow neutron_t self:capability { dac_override sys_rawio };
allow neutron_t neutron_exec_t:file execute_no_trans;
#============= openvswitch_t ==============
allow openvswitch_t var_run_t:sock_file write;
#============= openvswitch_load_module_t ==============
allow openvswitch_load_module_t tracefs_t:dir search;
#============= dnsmasq_t ==============
allow dnsmasq_t self:capability dac_override;
checkmodule -m -M -o ovsofctl.mod ovsofctl.te [root@network ~]# semodule_package --outfile ovsofctl.pp --module ovsofctl.mod [root@network ~]# semodule -i ovsofctl.pp |
| [5] | If Firewalld is running, allow service ports. |
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[root@network ~]# firewall-cmd --add-port={9696/tcp,6641/tcp,6642/tcp} success [root@network ~]# firewall-cmd --runtime-to-permanent success |
| [6] | Start Neutron services. |
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[root@network ~]#
ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini [root@network ~]# su -s /bin/bash neutron -c "neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini upgrade head"
[root@network ~]#
[root@network ~]# systemctl enable --now ovn-northd [root@network ~]# ovn-nbctl set-connection ptcp:6641:10.0.0.50 -- set connection . inactivity_probe=60000 [root@network ~]# ovn-sbctl set-connection ptcp:6642:10.0.0.50 -- set connection . inactivity_probe=60000
systemctl enable --now neutron-server
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