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OpenStack Zed : Create LoadBalancer Image2022/11/11

 
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)
# install from Zed, EPEL, CRB

[root@dlp ~(keystone)]#
dnf --enablerepo=centos-openstack-zed,epel,crb -y install openstack-octavia-diskimage-create debootstrap python3-octaviaclient
# create an instance image

[root@dlp ~(keystone)]#
octavia-diskimage-create.sh -d focal
# add to Glance

[root@dlp ~(keystone)]#
openstack image create "Amphora" --tag "Amphora" --file amphora-x64-haproxy.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 |
+--------------------------------------+----------------+--------+
| 86d2ba82-d979-437a-88ed-a9e0d7313735 | Amphora        | active |
| 8367cc21-61f4-480b-8d03-90c057c7a7cf | CentOS-Stream9 | 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                              |
+--------------------------------------+---------+--------------------------------------+
| 004ca400-3d79-4c1b-b8fb-bba1e273000e | public  | 80213093-ac95-469a-b4d9-8c6adc93cfe1 |
| c9c79a1d-136e-4036-8fe0-eaac79f05f5d | private | 85e66c6a-66eb-490f-a4fa-e21f91678c89 |
+--------------------------------------+---------+--------------------------------------+

[root@network ~]#
openstack security group list

+--------------------------------------+-------------------+------------------------+----------------------------------+------+
| ID                                   | Name              | Description            | Project                          | Tags |
+--------------------------------------+-------------------+------------------------+----------------------------------+------+
| 30b4c95d-eea2-4b1c-8fb6-de161b766918 | default           | Default security group | 28b6e37c787240e4a975d3614821cc71 | []   |
| 71c73ff4-0dda-4c2b-89ae-59096a53ecdd | secgroup01        | secgroup01             | 28b6e37c787240e4a975d3614821cc71 | []   |
| 82473745-265f-4c41-ba43-56780d3bda8a | lb-mgmt-sec-group | lb-mgmt-sec-group      | 62f531f4d2934e75b8d7f11cd7d53be3 | []   |
+--------------------------------------+-------------------+------------------------+----------------------------------+------+

[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 = 82473745-265f-4c41-ba43-56780d3bda8a
# specify network ID to boot Amphora instance (example below specifies public network [public])
amp_boot_network_list = 004ca400-3d79-4c1b-b8fb-bba1e273000e
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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