OpenStack Flamingo : Create LoadBalancer Image2025/11/28 |
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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 | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Create a LoadBalancer Image and add it to Glance. It's OK to work on any node. (example below is on Control Node) |
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# create an instance image root@dlp ~(keystone)# apt -y install podman root@dlp ~(keystone)# mkdir /var/lib/containers/tmpdisk root@dlp ~(keystone)# podman run --privileged -it -v /var/lib/containers/tmpdisk:/mnt centos:stream9 /bin/bash bash-5.1# cd /mnt bash-5.1# dnf -y install centos-release-openstack-epoxy epel-release sudo bash-5.1# dnf --enablerepo=crb -y install openstack-octavia-diskimage-create debootstrap python3-octaviaclient bash-5.1# chmod 440 /etc/shadow bash-5.1# octavia-diskimage-create.sh -i centos-minimal ..... ..... Successfully built the amphora image using amphora-agent from the master branch. Amphora image size: /mnt/amphora-x64-haproxy.qcow2 561733120bash-5.1# exit
# add to Glance root@dlp ~(keystone)# openstack image create "Amphora" --tag "Amphora" --file /var/lib/containers/tmpdisk/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 2048 --disk 10 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. |
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root@network:~# openstack image list +--------------------------------------+------------+--------+ | ID | Name | Status | +--------------------------------------+------------+--------+ | 8bd7f5e1-98c6-4bf1-bd82-e60bcba12e80 | Amphora | active | | c8be4fc8-a3f7-4859-9ae7-8b3843baa619 | Ubuntu2404 | active | +--------------------------------------+------------+--------+root@network:~# openstack flavor list --all +-----+------------+-------+------+-----------+-------+-----------+ | ID | Name | RAM | Disk | Ephemeral | VCPUs | Is Public | +-----+------------+-------+------+-----------+-------+-----------+ | 1 | m1.tiny | 2048 | 10 | 0 | 1 | True | | 100 | m1.octavia | 2048 | 10 | 0 | 1 | False | | 2 | m1.small | 4096 | 10 | 0 | 2 | True | | 3 | m1.medium | 8192 | 10 | 0 | 4 | True | | 4 | m1.large | 16384 | 10 | 0 | 8 | True | | 5 | m2.medium | 8192 | 10 | 10 | 4 | True | +-----+------------+-------+------+-----------+-------+-----------+root@network:~# openstack network list +---------------------------------+---------+----------------------------------+ | ID | Name | Subnets | +---------------------------------+---------+----------------------------------+ | 3d439616-ee5c-49b9-ac27- | private | ca5e015c-a5cb-4c2e-a390- | | 9525818605d8 | | d0ac1bd05916 | | 7457c2ad-572e-4cb9-86c0- | public | 0143ec7e-f39a-43ac-8c12- | | 20f4e89da51b | | 78e2b9d27ba7 | +---------------------------------+---------+----------------------------------+root@network:~# openstack security group list +--------------+--------------+--------------+-----------------+------+--------+ | ID | Name | Description | Project | Tags | Shared | +--------------+--------------+--------------+-----------------+------+--------+ | 667334f1- | secgroup01 | secgroup01 | b45ce8ac12c749e | [] | False | | a73b-4079- | | | 49e933c84334e79 | | | | 990a- | | | de | | | | fc247d301dd8 | | | | | | | da62ebb1- | lb-mgmt-sec- | lb-mgmt-sec- | 17d8e190750a402 | [] | False | | 8db1-46d5- | group | group | d920eedf933aea3 | | | | ae8a- | | | 58 | | | | 863376f8f8a6 | | | | | | | ea2c7bfe- | default | Default | a74433b11b71428 | [] | False | | 3160-42aa- | | security | b949de54795e408 | | | | 97fa- | | group | e7 | | | | fc99b52d99e9 | | | | | | +--------------+--------------+--------------+-----------------+------+--------+
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 for Amphora instance
amp_secgroup_list = da62ebb1-8db1-46d5-ae8a-863376f8f8a6
# specify network ID to boot Amphora instance (example below specifies public network [public])
amp_boot_network_list = 7457c2ad-572e-4cb9-86c0-20f4e89da51b
network_driver = allowed_address_pairs_driver
compute_driver = compute_nova_driver
amphora_driver = amphora_haproxy_rest_driver
root@network:~# |
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