OpenStack Xena : Configure Neutron (Control Node)2021/11/22 |
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Configure OpenStack Network Service (Neutron).
This example is not on the All in One Settings like here, but Configure the 3 Nodes environment like follows.
Neutron needs a plugin software, it's possible to choose it from some softwares. It chooses ML2 plugin on this example. ( it uses Open vSwitch under the backend )
------------+---------------------------+---------------------------+------------
| | |
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 | | L2 Agent | | Nova Compute |
| Keystone Glance | | L3 Agent | | Open vSwitch |
| Nova API | | Metadata Agent | | L2 Agent |
| Neutron Server | | | | |
| Metadata Agent | | | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | |
| [2] | Install Neutron Server on Control Host. |
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[root@dlp ~(keystone)]# dnf --enablerepo=centos-openstack-xena,powertools,epel -y install openstack-neutron openstack-neutron-ml2
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| [3] | Configure Neutron Server. |
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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/metadata_agent.ini
[DEFAULT]
# line 2 : add # specify Nova API server nova_metadata_host = 10.0.0.30 # specify any secret key you like metadata_proxy_shared_secret = metadata_secret # line 220 : add to specify Memcache server memcache_servers = 10.0.0.30:11211
[root@dlp ~(keystone)]#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # add to the end # 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 extension_drivers = port_security
[root@dlp ~(keystone)]#
vi /etc/nova/nova.conf
# 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
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| [4] | If SELinux is enabled, change policy. |
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[root@dlp ~(keystone)]# dnf --enablerepo=centos-openstack-xena -y install openstack-selinux [root@dlp ~(keystone)]# setsebool -P neutron_can_network on [root@dlp ~(keystone)]# setsebool -P daemons_enable_cluster_mode on |
| [5] | If Firewalld is running, allow service ports. |
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[root@dlp ~(keystone)]# firewall-cmd --add-port=9696/tcp success [root@dlp ~(keystone)]# firewall-cmd --runtime-to-permanent success |
| [6] | Start Neutron server. |
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[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)]# systemctl enable --now neutron-server neutron-metadata-agent [root@dlp ~(keystone)]# systemctl restart openstack-nova-api |
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