Ubuntu 22.04
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OpenStack Zed : Create LoadBalancer Image
2022/10/11
 
Install and Configure 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  Nginx     |     |     Neutron Server    |     |      Nova Compute     |
|  Keystone   httpd     |     |      OVN-Northd       |     |      Open vSwitch     |
|  Glance     Nova API  |     |  Nginx  iSCSI Target  |     |   OVN Metadata Agent  |
|  Cinder API           |     |     Cinder Volume     |     |     OVN-Controller    |
|                       |     |    Octavia Services   |     |                       |
+-----------------------+     +-----------------------+     +-----------------------+

[1] Create a LoadBalancer Image and add it to Glance. It's OK to work on any node. (example below is on Control Node)
# create an instance image

root@dlp ~(keystone)#
snap install octavia-diskimage-retrofit --beta --devmode

root@dlp ~(keystone)#
cd /var/snap/octavia-diskimage-retrofit/common/tmp

root@dlp tmp(keystone)#
wget https://cloud-images.ubuntu.com/minimal/releases/focal/release/ubuntu-20.04-minimal-cloudimg-amd64.img

root@dlp tmp(keystone)#
octavia-diskimage-retrofit ubuntu-20.04-minimal-cloudimg-amd64.img ubuntu-amphora-haproxy-amd64.qcow2
# add to Glance

root@dlp ~(keystone)#
openstack image create "Amphora" --tag "Amphora" --file ubuntu-amphora-haproxy-amd64.qcow2 --disk-format qcow2 --container-format bare --private --project service
# add [flavor] for Amphora instance

root@dlp ~(keystone)#
openstack flavor create --id 100 --vcpus 1 --ram 1024 --disk 5 m1.octavia --private --project service
# add a security group for Amphora instance

root@dlp ~(keystone)#
openstack security group create lb-mgmt-sec-group --project service
# allow required ports for security group

root@dlp ~(keystone)#
openstack security group rule create --protocol icmp --ingress lb-mgmt-sec-group

root@dlp ~(keystone)#
openstack security group rule create --protocol tcp --dst-port 22:22 lb-mgmt-sec-group

root@dlp ~(keystone)#
openstack security group rule create --protocol tcp --dst-port 80:80 lb-mgmt-sec-group

root@dlp ~(keystone)#
openstack security group rule create --protocol tcp --dst-port 443:443 lb-mgmt-sec-group

root@dlp ~(keystone)#
openstack security group rule create --protocol tcp --dst-port 9443:9443 lb-mgmt-sec-group

[2] Configure Octavia service to set instance ID or security group ID.
root@network:~#
openstack image list

+--------------------------------------+------------+--------+
| ID                                   | Name       | Status |
+--------------------------------------+------------+--------+
| 7800939f-15b8-45e0-9c25-a9563ae04781 | Amphora    | active |
| 126bc335-fc00-478d-b84a-a9e79eba2574 | Ubuntu2204 | active |
+--------------------------------------+------------+--------+

root@network:~#
openstack flavor list --all

+-----+------------+------+------+-----------+-------+-----------+
| ID  | Name       |  RAM | Disk | Ephemeral | VCPUs | Is Public |
+-----+------------+------+------+-----------+-------+-----------+
| 0   | m1.small   | 2048 |   10 |         0 |     1 | True      |
| 100 | m1.octavia | 1024 |    5 |         0 |     1 | False     |
+-----+------------+------+------+-----------+-------+-----------+

root@network:~#
openstack network list

+--------------------------------------+---------+--------------------------------------+
| ID                                   | Name    | Subnets                              |
+--------------------------------------+---------+--------------------------------------+
| 394ec727-7e9a-473e-8068-45aa841a9ac2 | public  | ea6cb6cb-74ed-4007-bd25-b3fb84111e84 |
| 7336a271-bec9-4d33-8dc5-e9f3a9892ed7 | private | a454cf3e-fef5-46f6-8468-4a26cbd14983 |
+--------------------------------------+---------+--------------------------------------+

root@network:~#
openstack security group list

+--------------------------------------+-------------------+------------------------+----------------------------------+------+
| ID                                   | Name              | Description            | Project                          | Tags |
+--------------------------------------+-------------------+------------------------+----------------------------------+------+
| 37c71ab8-49fe-4d15-96d7-e637f6f9c199 | lb-mgmt-sec-group | lb-mgmt-sec-group      | ee51c09c765e4a4d958c2bcc4dbb5665 | []   |
| 8757368a-e07f-494f-9fc3-f3c19d79d1d9 | secgroup01        | secgroup01             | 4dd1e1f6bac441ff9c77002c3ab4c58a | []   |
| e77899f3-e765-4a23-957e-fef2d031526d | default           | Default security group | 231a529f51394426b07c56f2c5ec580e | []   |
+--------------------------------------+-------------------+------------------------+----------------------------------+------+

root@network:~#
vi /etc/octavia/octavia.conf
# add into [controller_worker] section

[controller_worker]
client_ca = /etc/octavia/certs/client_ca.cert.pem
amp_image_tag = Amphora
# specify [flavor] ID for Amphora instance
amp_flavor_id = 100
# specify security group ID Amphora instance
amp_secgroup_list = 37c71ab8-49fe-4d15-96d7-e637f6f9c199
# specify network ID to boot Amphora instance (example below specifies public network [public])
amp_boot_network_list = 394ec727-7e9a-473e-8068-45aa841a9ac2
network_driver = allowed_address_pairs_driver
compute_driver = compute_nova_driver
amphora_driver = amphora_haproxy_rest_driver 

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

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