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OpenStack Victoria : Configure Octavia (Control Node)
2021/03/26
 
Install OpenStack Load Balancing as a Service (Octavia).
This example is based on the environment like follows.
------------+---------------------------+---------------------------+------------
            |                           |                           |
        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] Add users or services for Octavia on Keystone.
# create [octavia] user in [service] project

[root@dlp ~(keystone)]#
openstack user create --domain default --project service --password servicepassword octavia

+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | affa3a6446154e37adfd233c437bacc1 |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | e9cf448a64174dc19beed04fed75b781 |
| name                | octavia                          |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

# add [octavia] user in [admin] role

[root@dlp ~(keystone)]#
openstack role add --project service --user octavia admin
# create service entry for [octavia]

[root@dlp ~(keystone)]#
openstack service create --name octavia --description "OpenStack LBaaS" load-balancer

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack LBaaS                  |
| enabled     | True                             |
| id          | 18e4781e92ab4c679cfef6fafda896fe |
| name        | octavia                          |
| type        | load-balancer                    |
+-------------+----------------------------------+

# define Octavia API Host

[root@dlp ~(keystone)]#
export octavia_api=10.0.0.50
# create endpoint for [octavia] (public)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne load-balancer public http://$octavia_api:9876

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 511c7b8f798c40f589f94211db420ead |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 18e4781e92ab4c679cfef6fafda896fe |
| service_name | octavia                          |
| service_type | load-balancer                    |
| url          | http://10.0.0.50:9876            |
+--------------+----------------------------------+

# create endpoint for [octavia] (internal)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne load-balancer internal http://$octavia_api:9876

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 655d699e4caf4661954cbea016942235 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 18e4781e92ab4c679cfef6fafda896fe |
| service_name | octavia                          |
| service_type | load-balancer                    |
| url          | http://10.0.0.50:9876            |
+--------------+----------------------------------+

# create endpoint for [octavia] (admin)

[root@dlp ~(keystone)]#
openstack endpoint create --region RegionOne load-balancer admin http://$octavia_api:9876

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | f61ece93d8ab43549b7c6a2d6f2b5cf8 |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 18e4781e92ab4c679cfef6fafda896fe |
| service_name | octavia                          |
| service_type | load-balancer                    |
| url          | http://10.0.0.50:9876            |
+--------------+----------------------------------+
[2] Add a User and Database on MariaDB for Octavia.
[root@dlp ~(keystone)]#
mysql -u root -p

Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 105
Server version: 10.3.27-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> create database octavia; 
Query OK, 1 row affected (0.00 sec)

MariaDB [(none)]> grant all privileges on octavia.* to octavia@'localhost' identified by 'password'; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> grant all privileges on octavia.* to octavia@'%' identified by 'password'; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> flush privileges; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> exit 
Bye
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