OpenStack Wallaby : Create LoadBalancer Image2021/04/21 |
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Install and Configure OpenStack Load Balancing as a Service (Octavia).
This example is based on the environment like follows.
------------+---------------------------+---------------------------+------------
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eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ Control Node ] | | [ Storage 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 | | Octavia Services | | OVN-Controller |
+-----------------------+ +-----------------------+ +-----------------------+
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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)# 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. |
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root@network:~# openstack image list +--------------------------------------+------------+--------+ | ID | Name | Status | +--------------------------------------+------------+--------+ | b5e1a5f3-9a39-490c-8394-f7b4c9bf0afb | Amphora | active | | 8df08a02-7c19-465e-8862-53eb2319918d | Ubuntu2004 | 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 | +--------------------------------------+---------+--------------------------------------+ | ca2c4289-f0e7-42dc-95d4-ea9507567541 | private | c11c200c-d463-4330-beaf-80ab87ead256 | | ffa87ed8-7da9-488c-a7c8-09912ca2443a | public | e8c73b2b-a6c7-4d97-8782-df4d841f84eb | +--------------------------------------+---------+--------------------------------------+root@network:~# openstack security group list +--------------------------------------+-------------------+------------------------+----------------------------------+------+ | ID | Name | Description | Project | Tags | +--------------------------------------+-------------------+------------------------+----------------------------------+------+ | 20c6381f-07e1-4b79-9385-641c13c3a776 | default | Default security group | e256a7323fda468fb02e8f1975fce488 | [] | | 41242586-e48d-428e-ab7b-4f2f7409b1a3 | lb-mgmt-sec-group | lb-mgmt-sec-group | b1f2e1bdf6fb4e03bb30ef3b90764d3b | [] | | e8d72cf7-666a-4590-a95c-767f44025e49 | secgroup01 | secgroup01 | e256a7323fda468fb02e8f1975fce488 | [] | +--------------------------------------+-------------------+------------------------+----------------------------------+------+
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 = 41242586-e48d-428e-ab7b-4f2f7409b1a3
# specify network ID to boot Amphora instance (example below specifies public network [public])
amp_boot_network_list = ffa87ed8-7da9-488c-a7c8-09912ca2443a
network_driver = allowed_address_pairs_driver
compute_driver = compute_nova_driver
amphora_driver = amphora_haproxy_rest_driver
root@network:~# |
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