OpenStack Wallaby : How to use Octavia2021/04/21 |
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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 Loadbalancer instance. By default, [admin] users can create instances, so work as an admin user. It's OK to work on any node. (example below is on Control Node) |
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root@dlp ~(keystone)#
root@dlp ~(keystone)# apt -y install python3-octaviaclient openstack subnet list +--------------------------------------+----------------+--------------------------------------+------------------+ | ID | Name | Network | Subnet | +--------------------------------------+----------------+--------------------------------------+------------------+ | c11c200c-d463-4330-beaf-80ab87ead256 | private-subnet | ca2c4289-f0e7-42dc-95d4-ea9507567541 | 192.168.100.0/24 | | e8c73b2b-a6c7-4d97-8782-df4d841f84eb | public-subnet | ffa87ed8-7da9-488c-a7c8-09912ca2443a | 10.0.0.0/24 | +--------------------------------------+----------------+--------------------------------------+------------------+root@dlp ~(keystone)# openstack loadbalancer create --name lb01 --vip-subnet-id private-subnet +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | admin_state_up | True | | availability_zone | None | | created_at | 2021-04-21T00:01:46 | | description | | | flavor_id | None | | id | 8b48ab85-d5c6-4503-966b-024614fdbec9 | | listeners | | | name | lb01 | | operating_status | OFFLINE | | pools | | | project_id | da2214d30eaa4b7aaae25c8cbba0483e | | provider | amphora | | provisioning_status | PENDING_CREATE | | updated_at | None | | vip_address | 192.168.100.70 | | vip_network_id | ca2c4289-f0e7-42dc-95d4-ea9507567541 | | vip_port_id | 40ff7cff-b641-4499-b1b2-a288004457f5 | | vip_qos_policy_id | None | | vip_subnet_id | c11c200c-d463-4330-beaf-80ab87ead256 | | tags | | +---------------------+--------------------------------------+ # after a few minutes, stauts turns to [ACTIVE] if instance successfully created root@dlp ~(keystone)# openstack loadbalancer list +--------------------------------------+------+----------------------------------+----------------+---------------------+------------------+----------+ | id | name | project_id | vip_address | provisioning_status | operating_status | provider | +--------------------------------------+------+----------------------------------+----------------+---------------------+------------------+----------+ | 8b48ab85-d5c6-4503-966b-024614fdbec9 | lb01 | da2214d30eaa4b7aaae25c8cbba0483e | 192.168.100.70 | ACTIVE | OFFLINE | amphora | +--------------------------------------+------+----------------------------------+----------------+---------------------+------------------+----------+ |
| [2] | Add a listener and pool to the instance and Configure loadbalancing to use 2 backend Web Server instances. |
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# create a listener that listens TCP 80 root@dlp ~(keystone)# openstack loadbalancer listener create --name listener01 --protocol TCP --protocol-port 80 lb01 +-----------------------------+--------------------------------------+ | Field | Value | +-----------------------------+--------------------------------------+ | admin_state_up | True | | connection_limit | -1 | | created_at | 2021-04-21T00:07:42 | | default_pool_id | None | | default_tls_container_ref | None | | description | | | id | 787c1a3a-2d14-4dda-9876-12cf2f0aa701 | | insert_headers | None | | l7policies | | | loadbalancers | 8b48ab85-d5c6-4503-966b-024614fdbec9 | | name | listener01 | | operating_status | OFFLINE | | project_id | da2214d30eaa4b7aaae25c8cbba0483e | | protocol | TCP | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | sni_container_refs | [] | | timeout_client_data | 50000 | | timeout_member_connect | 5000 | | timeout_member_data | 50000 | | timeout_tcp_inspect | 0 | | updated_at | None | | client_ca_tls_container_ref | None | | client_authentication | NONE | | client_crl_container_ref | None | | allowed_cidrs | None | | tls_ciphers | None | | tls_versions | None | | alpn_protocols | None | | tags | | +-----------------------------+--------------------------------------+ # add a pool to the listener root@dlp ~(keystone)# openstack loadbalancer pool create --name pool01 --lb-algorithm ROUND_ROBIN --listener listener01 --protocol TCP +----------------------+--------------------------------------+ | Field | Value | +----------------------+--------------------------------------+ | admin_state_up | True | | created_at | 2021-04-21T00:07:59 | | description | | | healthmonitor_id | | | id | 193b4060-a3ac-49e5-b1d8-2dc6727b26a1 | | lb_algorithm | ROUND_ROBIN | | listeners | 787c1a3a-2d14-4dda-9876-12cf2f0aa701 | | loadbalancers | 8b48ab85-d5c6-4503-966b-024614fdbec9 | | members | | | name | pool01 | | operating_status | OFFLINE | | project_id | da2214d30eaa4b7aaae25c8cbba0483e | | protocol | TCP | | provisioning_status | PENDING_CREATE | | session_persistence | None | | updated_at | None | | tls_container_ref | None | | ca_tls_container_ref | None | | crl_container_ref | None | | tls_enabled | False | | tls_ciphers | None | | tls_versions | None | | tags | | | alpn_protocols | None | +----------------------+--------------------------------------+ # web server instances root@dlp ~(keystone)# openstack server list +--------------------------------------+-------+--------+-------------------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+-------+--------+-------------------------+------------+----------+ | 3a92ab6e-285c-4b6e-b8c2-57846a42fe07 | Web02 | ACTIVE | private=192.168.100.43 | Ubuntu2004 | m1.small | | d92fb2a6-cf14-4b9b-9275-132cb6b77d4d | Web01 | ACTIVE | private=192.168.100.132 | Ubuntu2004 | m1.small | +--------------------------------------+-------+--------+-------------------------+------------+----------+ # add web server instances to the pool member root@dlp ~(keystone)# openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.43 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.43 | | admin_state_up | True | | created_at | 2021-04-21T00:11:29 | | id | ad553424-505c-46b9-aa7c-acc5a9ad6d4a | | name | | | operating_status | NO_MONITOR | | project_id | da2214d30eaa4b7aaae25c8cbba0483e | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | c11c200c-d463-4330-beaf-80ab87ead256 | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | | tags | | +---------------------+--------------------------------------+root@dlp ~(keystone)# openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.132 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.132 | | admin_state_up | True | | created_at | 2021-04-21T00:11:46 | | id | 41296ce4-5320-4207-a11b-159ab6c437ea | | name | | | operating_status | NO_MONITOR | | project_id | da2214d30eaa4b7aaae25c8cbba0483e | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | c11c200c-d463-4330-beaf-80ab87ead256 | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | | tags | | +---------------------+--------------------------------------+root@dlp ~(keystone)# openstack loadbalancer member list pool01 +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | id | name | project_id | provisioning_status | address | protocol_port | operating_status | weight | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | ad553424-505c-46b9-aa7c-acc5a9ad6d4a | | da2214d30eaa4b7aaae25c8cbba0483e | ACTIVE | 192.168.100.43 | 80 | NO_MONITOR | 1 | | 41296ce4-5320-4207-a11b-159ab6c437ea | | da2214d30eaa4b7aaae25c8cbba0483e | ACTIVE | 192.168.100.132 | 80 | NO_MONITOR | 1 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ # create a floating IP on public network root@dlp ~(keystone)# openstack floating ip create public +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2021-04-21T00:12:21Z | | description | | | dns_domain | None | | dns_name | None | | fixed_ip_address | None | | floating_ip_address | 10.0.0.224 | | floating_network_id | ffa87ed8-7da9-488c-a7c8-09912ca2443a | | id | d3be5ad8-42e6-48a4-b89a-5af3c017aa45 | | name | 10.0.0.224 | | port_details | None | | port_id | None | | project_id | da2214d30eaa4b7aaae25c8cbba0483e | | qos_policy_id | None | | revision_number | 0 | | router_id | None | | status | DOWN | | subnet_id | None | | tags | [] | | updated_at | 2021-04-21T00:12:21Z | +---------------------+--------------------------------------+ # assosiate floating IP with VIP of loadbalancer instace root@dlp ~(keystone)# VIPPORT=$(openstack loadbalancer show lb01 | grep vip_port_id | awk {'print $4'}) root@dlp ~(keystone)# openstack floating ip set --port $VIPPORT 10.0.0.224
# verify settings to access to the floating IP root@dlp ~(keystone)# curl 10.0.0.224 Web Server on Instance01 root@dlp ~(keystone)# curl 10.0.0.224 Web Server on Instance02 root@dlp ~(keystone)# curl 10.0.0.224 Web Server on Instance01 root@dlp ~(keystone)# curl 10.0.0.224 Web Server on Instance02 |
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