Ubuntu 22.04
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OpenStack Zed : Neutron 設定 #2
2022/10/07
 
OpenStack Network Service(Neutron)をインストールします。
当例では以下のような環境を例に、Open Virtual Network (OVN) を利用した Neutron ネットワークを設定します。
以下のように All in One 構成ではなく、ノードを役割ごとに分離する場合、または Nova Compute ノードを他ホストに分離して構成している場合等の Neutron サービスの構成はこちらを参照して設定ください
        eth0|10.0.0.30 
+-----------+-----------+
|   [ dlp.srv.world ]   |
|     (Control Node)    |
|                       |
|  MariaDB    RabbitMQ  |
|  Memcached  Nginx     |
|  Keystone   httpd     |
|  Glance     Nova API  |
|  Nova Compute         |
|    Neutron Server     |
|    Open vSwitch       |
|  OVN Metadata Agent   |
|    OVN-Controller     |
+-----------------------+

[1] Neutron サービスをインストールします。
root@dlp ~(keystone)#
apt -y install neutron-server neutron-plugin-ml2 neutron-ovn-metadata-agent python3-neutronclient ovn-central ovn-host openvswitch-switch
[2] Neutron サービスの設定です。
root@dlp ~(keystone)#
mv /etc/neutron/neutron.conf /etc/neutron/neutron.conf.org

root@dlp ~(keystone)#
vi /etc/neutron/neutron.conf
# 新規作成

[DEFAULT]
bind_host = 127.0.0.1
bind_port = 9696
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 接続情報
transport_url = rabbit://openstack:password@dlp.srv.world

# Keystone 認証情報
[keystone_authtoken]
www_authenticate_uri = https://dlp.srv.world:5000
auth_url = https://dlp.srv.world:5000
memcached_servers = dlp.srv.world:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = neutron
password = servicepassword
# Apache2 Keystone で自己署名の証明書を使用の場合は [true]
insecure = false

[database]
connection = mysql+pymysql://neutron:password@dlp.srv.world/neutron_ml2

[nova]
auth_url = https://dlp.srv.world:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = nova
password = servicepassword
# Apache2 Keystone で自己署名の証明書を使用の場合は [true]
insecure = false

[oslo_concurrency]
lock_path = $state_path/tmp

root@dlp ~(keystone)#
chmod 640 /etc/neutron/neutron.conf

root@dlp ~(keystone)#
chgrp neutron /etc/neutron/neutron.conf
root@dlp ~(keystone)#
mv /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugins/ml2/ml2_conf.ini.org

root@dlp ~(keystone)#
vi /etc/neutron/plugins/ml2/ml2_conf.ini
# 新規作成

[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]
ovn_nb_connection = tcp:10.0.0.30:6641
ovn_sb_connection = tcp:10.0.0.30:6642
ovn_l3_scheduler = leastloaded
ovn_metadata_enabled = True

root@dlp ~(keystone)#
chmod 640 /etc/neutron/plugins/ml2/ml2_conf.ini

root@dlp ~(keystone)#
chgrp neutron /etc/neutron/plugins/ml2/ml2_conf.ini
root@dlp ~(keystone)#
vi /etc/neutron/neutron_ovn_metadata_agent.ini
[DEFAULT]
# 2行目 : 追記
# Nova API サーバーを指定
nova_metadata_host = dlp.srv.world
nova_metadata_protocol = https
# 任意のシークレットキーを指定
metadata_proxy_shared_secret = metadata_secret

# 231行目 : 変更
[ovs]
ovsdb_connection = tcp:127.0.0.1:6640

# 最終行に追記
[agent]
root_helper = sudo neutron-rootwrap /etc/neutron/rootwrap.conf

[ovn]
ovn_sb_connection = tcp:10.0.0.30:6642

root@dlp ~(keystone)#
vi /etc/default/openvswitch-switch
# 8行目 : コメント解除して追記

OVS_CTL_OPTS=
"--ovsdb-server-options='--remote=ptcp:6640:127.0.0.1'"
root@dlp ~(keystone)#
vi /etc/nova/nova.conf
# [DEFAULT] セクション内の適当な場所へ追記

vif_plugging_is_fatal = True
vif_plugging_timeout = 300

# 最終行へ追記 : Neutron 認証情報
# [metadata_proxy_shared_secret] の値は [neutron_ovn_metadata_agent.ini] で指定した値
[neutron]
auth_url = https://dlp.srv.world: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
insecure = false
[4] Nginx にプロキシの設定をします。
root@dlp ~(keystone)#
vi /etc/nginx/nginx.conf
# [stream] セクション内に追記

stream {
    upstream glance-api {
        server 127.0.0.1:9292;
    }
    server {
        listen 10.0.0.30:9292 ssl;
        proxy_pass glance-api;
    }
    upstream nova-api {
        server 127.0.0.1:8774;
    }
    server {
        listen 10.0.0.30:8774 ssl;
        proxy_pass nova-api;
    }
    upstream nova-metadata-api {
        server 127.0.0.1:8775;
    }
    server {
        listen 10.0.0.30:8775 ssl;
        proxy_pass nova-metadata-api;
    }
    upstream placement-api {
        server 127.0.0.1:8778;
    }
    server {
        listen 10.0.0.30:8778 ssl;
        proxy_pass placement-api;
    }
    upstream novncproxy {
        server 127.0.0.1:6080;
    }
    server {
        listen 10.0.0.30:6080 ssl;
        proxy_pass novncproxy;
    }
    upstream neutron-api {
        server 127.0.0.1:9696;
    }
    server {
        listen 10.0.0.30:9696 ssl;
        proxy_pass neutron-api;
    }
    ssl_certificate "/etc/letsencrypt/live/dlp.srv.world/fullchain.pem";
    ssl_certificate_key "/etc/letsencrypt/live/dlp.srv.world/privkey.pem";
}
[5] Neutron サービスを起動します。
root@dlp ~(keystone)#
systemctl restart openvswitch-switch

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)#
systemctl restart ovn-central ovn-northd ovn-controller ovn-host

root@dlp ~(keystone)#
ovn-nbctl set-connection ptcp:6641:10.0.0.30 -- set connection . inactivity_probe=60000

root@dlp ~(keystone)#
ovn-sbctl set-connection ptcp:6642:10.0.0.30 -- set connection . inactivity_probe=60000

root@dlp ~(keystone)#
ovs-vsctl set open . external-ids:ovn-remote=tcp:10.0.0.30:6642

root@dlp ~(keystone)#
ovs-vsctl set open . external-ids:ovn-encap-type=geneve

root@dlp ~(keystone)#
ovs-vsctl set open . external-ids:ovn-encap-ip=10.0.0.30

root@dlp ~(keystone)#
systemctl restart neutron-server neutron-ovn-metadata-agent nova-api nova-compute nginx
# 動作確認

root@dlp ~(keystone)#
openstack network agent list

+--------------------------------------+----------------------+---------------+-------------------+-------+-------+----------------------------+
| ID                                   | Agent Type           | Host          | Availability Zone | Alive | State | Binary                     |
+--------------------------------------+----------------------+---------------+-------------------+-------+-------+----------------------------+
| 003d663f-2810-407c-b81a-098658e57bae | OVN Controller agent | dlp.srv.world |                   | :-)   | UP    | ovn-controller             |
| 8b463714-3101-5d91-8493-6d9db0265ea3 | OVN Metadata agent   | dlp.srv.world |                   | :-)   | UP    | neutron-ovn-metadata-agent |
+--------------------------------------+----------------------+---------------+-------------------+-------+-------+----------------------------+
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