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OpenStack Yoga : Configure Octavia (Control Node)
2022/06/02
 
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
+-----------+-----------+     +-----------+-----------+     +-----------+-----------+
|   [ dlp.srv.world ]   |     | [ network.srv.world ] |     |  [ node01.srv.world ] |
|     (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 API |     |     Cinder Volume     |     |   OVN Metadata Agent  |
|                       |     |    Octavia Services   |     |     OVN-Controller    |
+-----------------------+     +-----------------------+     +-----------------------+

[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  | 8787527217494c6a87dd5a3b68dce1ef |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 7aedba8cbabe450ea5de6168979e5758 |
| 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          | 731ed98a7a4a486f9c34ae1bae22b1a6 |
| name        | octavia                          |
| type        | load-balancer                    |
+-------------+----------------------------------+

# define Octavia API Host

[root@dlp ~(keystone)]#
export octavia_api=network.srv.world
# create endpoint for [octavia] (public)

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

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 3a378d911ccf416fb0e277cdea57fa92 |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 731ed98a7a4a486f9c34ae1bae22b1a6 |
| service_name | octavia                          |
| service_type | load-balancer                    |
| url          | https://network.srv.world:9876   |
+--------------+----------------------------------+

# create endpoint for [octavia] (internal)

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

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 03f15489a6a644bf846cb1521006bea7 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 731ed98a7a4a486f9c34ae1bae22b1a6 |
| service_name | octavia                          |
| service_type | load-balancer                    |
| url          | https://network.srv.world:9876   |
+--------------+----------------------------------+

# create endpoint for [octavia] (admin)

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

+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | cdb329832a814893a88eed993cd0103f |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 731ed98a7a4a486f9c34ae1bae22b1a6 |
| service_name | octavia                          |
| service_type | load-balancer                    |
| url          | https://network.srv.world:9876   |
+--------------+----------------------------------+
[2] Add a User and Database on MariaDB for Octavia.
[root@dlp ~(keystone)]#
mysql

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 93
Server version: 10.5.9-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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