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OpenStack Zed : Neutron 設定 #22023/06/27
 
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 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。
なお、Neutron はプラグイン方式で、プラグインとして利用するソフトウェアを選択する必要があります。
当例では ML2 プラグインを選択して設定します。( バックエンドは Open vSwitch を選択 ) 
        eth0|10.0.0.30 
+-----------+-----------+
|   [ dlp.srv.world ]   |
|     (Control Node)    |
|                       |
|  MariaDB    RabbitMQ  |
|  Memcached  Nginx     |
|  Keystone   httpd     |
|  Glance     Nova API  |
|  Nova Compute         |
|    Neutron Server     |
|   Neutron Metadata    |
|  Neutron L2/L3 Agent  |
|    Open vSwitch       |
+-----------------------+
[1] Neutron サービスをインストールします。インストール中の問には全て [No] で OK です。
root@dlp ~(keystone)#
apt -y install neutron-server neutron-metadata-agent neutron-plugin-ml2 neutron-openvswitch-agent neutron-l3-agent neutron-dhcp-agent neutron-metadata-agent openvswitch-switch python3-neutronclient
[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 = 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 接続情報
transport_url = rabbit://openstack:password@dlp.srv.world

[agent]
root_helper = sudo /usr/bin/neutron-rootwrap /etc/neutron/rootwrap.conf

# 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

# MariaDB 接続情報
[database]
connection = mysql+pymysql://neutron:password@dlp.srv.world/neutron_ml2

# Nova 接続情報
[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

[oslo_policy]
enforce_new_defaults = true
root@dlp ~(keystone)#
vi /etc/neutron/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
# Memcache サーバーを指定

memcache_servers = dlp.srv.world:11211
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]

[ml2]
type_drivers = flat,vlan,vxlan
tenant_network_types =
mechanism_drivers = openvswitch
extension_drivers = port_security

[ml2_type_flat]

[ml2_type_vxlan]

[securitygroup]
enable_security_group = True
enable_ipset = True
root@dlp ~(keystone)#
vi /etc/neutron/l3_agent.ini
# 18行目 : 確認

interface_driver = openvswitch
root@dlp ~(keystone)#
vi /etc/neutron/dhcp_agent.ini
# 18行目 : 確認

interface_driver = openvswitch
# 37行目 : コメント解除

dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
root@dlp ~(keystone)#
mv /etc/neutron/plugins/ml2/openvswitch_agent.ini /etc/neutron/plugins/ml2/openvswitch_agent.ini.org

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

[DEFAULT]

[agent]

[ovs]

[securitygroup]
firewall_driver = openvswitch
enable_security_group = True
enable_ipset = True
root@dlp ~(keystone)#
touch /etc/neutron/fwaas_driver.ini

root@dlp ~(keystone)#
chmod 640 /etc/neutron/{neutron.conf,fwaas_driver.ini}

root@dlp ~(keystone)#
chgrp neutron /etc/neutron/{neutron.conf,fwaas_driver.ini}
root@dlp ~(keystone)#
chmod 640 /etc/neutron/plugins/ml2/{ml2_conf.ini,openvswitch_agent.ini}

root@dlp ~(keystone)#
chgrp neutron /etc/neutron/plugins/ml2/{ml2_conf.ini,openvswitch_agent.ini}
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
root@dlp ~(keystone)#
sed -i -e "s/UWSGI_BIND_IP=\"\"/UWSGI_BIND_IP=\"127.0.0.1\"/" /etc/init.d/neutron-api

[3] 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";
}
[4] Neutron サービスを起動します。
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)#
ip link set up ovs-system

root@dlp ~(keystone)#
echo -e '\nauto ovs-system\niface ovs-system inet manual' >> /etc/network/interfaces
root@dlp ~(keystone)#
systemctl restart neutron-api neutron-rpc-server neutron-l3-agent neutron-dhcp-agent neutron-metadata-agent neutron-openvswitch-agent nova-api nova-compute nginx

root@dlp ~(keystone)#
systemctl enable neutron-api neutron-rpc-server neutron-l3-agent neutron-dhcp-agent neutron-metadata-agent neutron-openvswitch-agent
# 動作確認

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

+--------------------------------------+--------------------+---------------+-------------------+-------+-------+---------------------------+
| ID                                   | Agent Type         | Host          | Availability Zone | Alive | State | Binary                    |
+--------------------------------------+--------------------+---------------+-------------------+-------+-------+---------------------------+
| 317ea35b-6504-47a7-a7f8-d1cbf815c7a9 | Metadata agent     | dlp.srv.world | None              | :-)   | UP    | neutron-metadata-agent    |
| c4ac7ec3-d3a2-4fd8-9072-01851aaa2b4f | DHCP agent         | dlp.srv.world | nova              | :-)   | UP    | neutron-dhcp-agent        |
| d32e00f7-be57-4600-99f3-4efc43f4206e | Open vSwitch agent | dlp.srv.world | None              | :-)   | UP    | neutron-openvswitch-agent |
| da7e277f-4708-4421-8a47-5d7d0ba25810 | L3 agent           | dlp.srv.world | nova              | :-)   | UP    | neutron-l3-agent          |
+--------------------------------------+--------------------+---------------+-------------------+-------+-------+---------------------------+
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