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OpenStack Victoria : Octavia 設定 (Network ノード)
2021/03/26
 
OpenStack Load Balancing as a Service(Octavia)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 Octavia をインストールします。
------------+---------------------------+---------------------------+------------
            |                           |                           |
        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             |   |     Cinder Volume     |   |   OVN Metadata Agent  |
|  Cinder API           |   |      iSCSI Target     |   |     OVN-Controller    |
|                       |   |    Octavia Services   |   |                       |
+-----------------------+   +-----------------------+   +-----------------------+

[1] Octavia サービスをインストールします。
# Victoria, EPEL, PowerTools からインストール

[root@network ~]#
dnf --enablerepo=centos-openstack-victoria,powertools,epel -y install openstack-octavia-api openstack-octavia-health-manager openstack-octavia-housekeeping openstack-octavia-worker
[2] ロードバランサーインスタンスで使用する証明書を作成しておきます。
[root@network ~]#
mkdir -p /etc/octavia/certs/private

[root@network ~]#
mkdir ~/work

[root@network ~]#
cd ~/work

[root@network work]#
git clone https://opendev.org/openstack/octavia.git

[root@network work]#
cd octavia/bin

[root@network bin]#
./create_dual_intermediate_CA.sh

[root@network bin]#
cp -p ./dual_ca/etc/octavia/certs/server_ca.cert.pem /etc/octavia/certs

[root@network bin]#
cp -p ./dual_ca/etc/octavia/certs/server_ca-chain.cert.pem /etc/octavia/certs

[root@network bin]#
cp -p ./dual_ca/etc/octavia/certs/server_ca.key.pem /etc/octavia/certs/private

[root@network bin]#
cp -p ./dual_ca/etc/octavia/certs/client_ca.cert.pem /etc/octavia/certs

[root@network bin]#
cp -p ./dual_ca/etc/octavia/certs/client.cert-and-key.pem /etc/octavia/certs/private

[root@network bin]#
chown -R octavia /etc/octavia/certs

[3] Octavia の設定です。
[root@network ~]#
mv /etc/octavia/octavia.conf /etc/octavia/octavia.conf.org

[root@network ~]#
vi /etc/octavia/octavia.conf
# 新規作成

[DEFAULT]
# RabbitMQ 接続情報
transport_url = rabbit://openstack:password@10.0.0.30

[api_settings]
# リスンする IP アドレス
bind_host = 10.0.0.50
bind_port = 9876
auth_strategy = keystone
api_base_uri = http://10.0.0.50:9876

# MariaDB 接続情報
[database]
connection = mysql+pymysql://octavia:password@10.0.0.30/octavia

[health_manager]
bind_ip = 0.0.0.0
bind_port = 5555

# Keystone 接続情報
[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 = octavia
password = servicepassword

# [2] で作成した証明書を指定
[certificates]
ca_private_key = /etc/octavia/certs/private/server_ca.key.pem
ca_certificate = /etc/octavia/certs/server_ca.cert.pem
server_certs_key_passphrase = insecure-key-do-not-use-this-key
ca_private_key_passphrase = not-secure-passphrase

# [2] で作成した証明書を指定
[haproxy_amphora]
server_ca = /etc/octavia/certs/server_ca-chain.cert.pem
client_cert = /etc/octavia/certs/private/client.cert-and-key.pem

# [2] で作成した証明書を指定
[controller_worker]
client_ca = /etc/octavia/certs/client_ca.cert.pem

[oslo_messaging]
topic = octavia_prov

# Keystone 接続情報
[service_auth]
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 = octavia
password = servicepassword

[root@network ~]#
chmod 640 /etc/octavia/octavia.conf

[root@network ~]#
chgrp octavia /etc/octavia/octavia.conf
[root@network ~]#
su -s /bin/bash octavia -c "octavia-db-manage --config-file /etc/octavia/octavia.conf upgrade head"

[root@network ~]#
systemctl enable --now octavia-api octavia-health-manager octavia-housekeeping octavia-worker

[4] Firewalld を有効にしている場合は、サービスポートの許可が必要です。
[root@network ~]#
firewall-cmd --add-port=9876/tcp --permanent

success
[root@network ~]#
firewall-cmd --reload

success
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