OpenStack Rocky : Configure Neutron#22018/10/18 |
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Configure OpenStack Network Service (Neutron).
This example is based on the emvironment like follows.
If you'd like to install Neutron services on another Host, refer to here.
Neutron needs a plugin software, it's possible to choose it from some softwares.
This example chooses ML2 plugin. ( it uses Open vSwitch under the backend )
eth0|10.0.0.30
+-----------+-----------+
| [ Control Node ] |
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| MariaDB RabbitMQ |
| Memcached httpd |
| Keystone Glance |
| Nova API,Compute |
| Neutron Server |
| L2,L3,Metadata Agent |
+-----------------------+
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| [1] | Install Neutron services. |
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[root@dlp ~(keystone)]# yum --enablerepo=centos-openstack-rocky,epel -y install openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch
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| [2] | Configure Neutron. |
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[root@dlp ~(keystone)]# mv /etc/neutron/neutron.conf /etc/neutron/neutron.conf.org
[root@dlp ~(keystone)]#
vi /etc/neutron/neutron.conf # create new [DEFAULT] core_plugin = ml2 service_plugins = router auth_strategy = keystone state_path = /var/lib/neutron dhcp_agent_notification = True 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 # MariaDB connection info [database] connection = mysql+pymysql://neutron:password@10.0.0.30/neutron_ml2 # Nova connection info [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 chmod 640 /etc/neutron/neutron.conf [root@dlp ~(keystone)]# chgrp neutron /etc/neutron/neutron.conf
[root@dlp ~(keystone)]#
vi /etc/neutron/l3_agent.ini # line 17: add
interface_driver = openvswitch
[root@dlp ~(keystone)]#
vi /etc/neutron/dhcp_agent.ini # line 17: add
interface_driver = openvswitch
# line 28: uncomment dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq # line 37: uncomment and change enable_isolated_metadata = true
[root@dlp ~(keystone)]#
vi /etc/neutron/metadata_agent.ini # line 22: uncomment and specify Nova API server nova_metadata_host = 10.0.0.30
# line 34: uncomment and specify any secret key you like metadata_proxy_shared_secret = metadata_secret
# line 260: uncomment and specify Memcache server memcache_servers = 10.0.0.30:11211
[root@dlp ~(keystone)]#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # line 129: add ( it's OK with no value for "tenant_network_types" (set later if need) ) [ml2]
type_drivers = flat,vlan,gre,vxlan
tenant_network_types = mechanism_drivers = openvswitch,l2population extension_drivers = port_security
[root@dlp ~(keystone)]#
vi /etc/neutron/plugins/ml2/openvswitch_agent.ini # line 308: add [securitygroup]
firewall_driver = openvswitch
enable_security_group = true enable_ipset = true
[root@dlp ~(keystone)]#
vi /etc/nova/nova.conf # add follows into [DEFAULT] section use_neutron = True linuxnet_interface_driver = nova.network.linux_net.LinuxOVSInterfaceDriver firewall_driver = nova.virt.firewall.NoopFirewallDriver vif_plugging_is_fatal = True vif_plugging_timeout = 300 # add follows to the end : Neutron auth info # the value of metadata_proxy_shared_secret is the same with the one in 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] | If SELinux is enabled, change policy like follows. |
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[root@dlp ~(keystone)]# setsebool -P neutron_can_network on [root@dlp ~(keystone)]# setsebool -P haproxy_connect_any on [root@dlp ~(keystone)]# setsebool -P daemons_enable_cluster_mode on [root@dlp ~(keystone)]# yum --enablerepo=centos-openstack-rocky -y install openstack-selinux |
| [4] | If Firewalld is running, allow service ports. |
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[root@dlp ~(keystone)]# firewall-cmd --add-port=9696/tcp --permanent success [root@dlp ~(keystone)]# firewall-cmd --reload success |
| [5] | Start Neutron services. |
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[root@dlp ~(keystone)]#
systemctl start openvswitch [root@dlp ~(keystone)]# systemctl enable openvswitch [root@dlp ~(keystone)]# ovs-vsctl add-br br-int
[root@dlp ~(keystone)]#
ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini [root@dlp ~(keystone)]# su -s /bin/bash neutron -c "neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini upgrade head"
[root@dlp ~(keystone)]#
for service in server dhcp-agent l3-agent metadata-agent openvswitch-agent; do
systemctl start neutron-$service systemctl enable neutron-$service done
[root@dlp ~(keystone)]#
systemctl restart openstack-nova-api openstack-nova-compute
# show status [root@dlp ~(keystone)]# openstack network agent list +--------------------------------------+--------------------+---------------+-------------------+-------+-------+---------------------------+ | ID | Agent Type | Host | Availability Zone | Alive | State | Binary | +--------------------------------------+--------------------+---------------+-------------------+-------+-------+---------------------------+ | b61d44ee-6769-4bbf-ac72-b5f495d0565e | DHCP agent | dlp.srv.world | nova | :-) | UP | neutron-dhcp-agent | | ca67b91b-1471-4de0-8db0-dca838450ae6 | Open vSwitch agent | dlp.srv.world | None | :-) | UP | neutron-openvswitch-agent | | d878cb65-3f0b-4860-baa1-7755f96ce6b4 | Metadata agent | dlp.srv.world | None | :-) | UP | neutron-metadata-agent | | ee5d0b41-39f6-43a8-ae6c-1fdfa60a5232 | L3 agent | dlp.srv.world | nova | :-) | UP | neutron-l3-agent | +--------------------------------------+--------------------+---------------+-------------------+-------+-------+---------------------------+ |
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