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OpenStack Zed : Octavia 設定 (Network ノード)2023/06/30

 
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
+-----------+-----------+  +-----------+-----------+  +-----------+-----------+
|   [ dlp.srv.world ]   |  | [ network.srv.world ] |  |  [ node01.srv.world ] |
|     (Control Node)    |  |     (Network Node)    |  |     (Compute Node)    |
|                       |  |                       |  |                       |
|  MariaDB    RabbitMQ  |  |  Neutron L2/L3 Agent  |  |        Libvirt        |
|  Memcached  Nginx     |  |   Neutron Metadata    |  |      Nova Compute     |
|  Keystone   httpd     |  |     Open vSwitch      |  |    Neutron L2 Agent   |
|  Glance     Nova API  |  |     iSCSI Target      |  |      Open vSwitch     |
|  Neutron Server       |  |     Cinder Volume     |  |                       |
|  Neutron Metadata     |  |    Octavia Services   |  |                       |
|  Cinder API           |  |        Nginx          |  |                       |
+-----------------------+  +-----------------------+  +-----------------------+

[1] Octavia サービスをインストールします。インストール中の問いには全て [No] で OK です。
root@network:~#
apt -y install octavia-api octavia-health-manager octavia-housekeeping octavia-worker python3-ovn-octavia-provider nginx libnginx-mod-stream git
[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:~/work/octavia/bin#
./create_dual_intermediate_CA.sh

root@network:~/work/octavia/bin#
cp -p ./dual_ca/etc/octavia/certs/server_ca.cert.pem /etc/octavia/certs

root@network:~/work/octavia/bin#
cp -p ./dual_ca/etc/octavia/certs/server_ca-chain.cert.pem /etc/octavia/certs

root@network:~/work/octavia/bin#
cp -p ./dual_ca/etc/octavia/certs/server_ca.key.pem /etc/octavia/certs/private

root@network:~/work/octavia/bin#
cp -p ./dual_ca/etc/octavia/certs/client_ca.cert.pem /etc/octavia/certs

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

root@network:~/work/octavia/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@dlp.srv.world

[api_settings]
bind_host = 127.0.0.1
bind_port = 9876
auth_strategy = keystone
api_base_uri = https://network.srv.world:9876

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

[health_manager]
bind_ip = 10.0.0.50
bind_port = 5555

# Keystone 接続情報
[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 = octavia
password = servicepassword
# Apache2 Keystone で自己署名の証明書を使用の場合は [true]
insecure = false

# [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 = 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 = octavia
password = servicepassword
# Apache2 Keystone で自己署名の証明書を使用の場合は [true]
insecure = false

root@network:~#
vi /etc/octavia/policy.yaml
# 新規作成

"context_is_admin": "role:admin or role:load-balancer_admin"
"admin_or_owner": "is_admin:True or project_id:%(project_id)s"
"load-balancer:read": "rule:admin_or_owner"
"load-balancer:read-global": "is_admin:True"
"load-balancer:write": "rule:admin_or_owner"
"load-balancer:read-quota": "rule:admin_or_owner"
"load-balancer:read-quota-global": "is_admin:True"
"load-balancer:write-quota": "is_admin:True"

root@network:~#
chmod 640 /etc/octavia/{octavia.conf,policy.yaml}

root@network:~#
chgrp octavia /etc/octavia/{octavia.conf,policy.yaml}

root@network:~#
sed -i -e "s/UWSGI_BIND_IP=\"\"/UWSGI_BIND_IP=\"127.0.0.1\"/" /etc/init.d/octavia-api

[4] ネットワークノード用の SSL/TLS 証明書を取得 または 自己署名の証明書を作成して、Nginx にプロキシの設定をします。
root@network:~#
unlink /etc/nginx/sites-enabled/default

root@network:~#
vi /etc/nginx/nginx.conf
# 最終行に追記

stream {
    upstream octavia-api {
        server 127.0.0.1:9876;
    }
    server {
        listen 10.0.0.50:9876 ssl;
        proxy_pass octavia-api;
    }
    ssl_certificate "/etc/letsencrypt/live/network.srv.world/fullchain.pem";
    ssl_certificate_key "/etc/letsencrypt/live/network.srv.world/privkey.pem";
}
[5] データベースにデータを追加して Octavia サービスを起動します。
root@network:~#
su -s /bin/bash octavia -c "octavia-db-manage --config-file /etc/octavia/octavia.conf upgrade head"

root@network:~#
systemctl restart octavia-api octavia-health-manager octavia-housekeeping octavia-worker

root@network:~#
systemctl enable octavia-api octavia-health-manager octavia-housekeeping octavia-worker

root@network:~#
systemctl restart nginx

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