OpenStack Yoga : How to use Octavia2022/05/05 |
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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
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ dlp.srv.world ] | | [ network.srv.world ] | | [ node01.srv.world ] |
| (Control Node) | | (Network Node) | | (Compute Node) |
| | | | | |
| MariaDB RabbitMQ | | Open vSwitch | | Libvirt |
| Memcached httpd | | Neutron Server | | Nova Compute |
| Keystone Glance | | OVN-Northd | | Open vSwitch |
| Nova API Cinder API | | Cinder Volume | | OVN Metadata Agent |
| | | 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 | +--------------------------------------+----------------+--------------------------------------+------------------+ | a602f687-a0d5-4d8d-ba1f-51e7c87a606b | private-subnet | 2d24c223-3059-4143-baea-c8dea27232b5 | 192.168.100.0/24 | | f7fb2250-794e-4b55-af48-29816ed2a9ea | public-subnet | ad1337fe-7b67-4e87-b4c4-9480bd60df8e | 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 | 2022-05-05T09:20:02 | | description | | | flavor_id | None | | id | 7b320a4f-95fd-49d5-8577-e00f7c20059e | | listeners | | | name | lb01 | | operating_status | OFFLINE | | pools | | | project_id | de339c4cb5984140ab0b243364e3a0f7 | | provider | amphora | | provisioning_status | PENDING_CREATE | | updated_at | None | | vip_address | 192.168.100.106 | | vip_network_id | 2d24c223-3059-4143-baea-c8dea27232b5 | | vip_port_id | ef79094a-e1df-4407-9818-47c1b8376181 | | vip_qos_policy_id | None | | vip_subnet_id | a602f687-a0d5-4d8d-ba1f-51e7c87a606b | | tags | | +---------------------+--------------------------------------+ # after a few minutes, status turns to [ACTIVE] if instance successfully created root@dlp ~(keystone)# openstack loadbalancer list +--------------------------------------+------+----------------------------------+-----------------+---------------------+------------------+----------+ | id | name | project_id | vip_address | provisioning_status | operating_status | provider | +--------------------------------------+------+----------------------------------+-----------------+---------------------+------------------+----------+ | 7b320a4f-95fd-49d5-8577-e00f7c20059e | lb01 | de339c4cb5984140ab0b243364e3a0f7 | 192.168.100.106 | 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 | 2022-05-05T09:26:08 | | default_pool_id | None | | default_tls_container_ref | None | | description | | | id | a4288021-ca95-4185-bf27-f3cde7b38d67 | | insert_headers | None | | l7policies | | | loadbalancers | 7b320a4f-95fd-49d5-8577-e00f7c20059e | | name | listener01 | | operating_status | OFFLINE | | project_id | de339c4cb5984140ab0b243364e3a0f7 | | 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 | 2022-05-05T09:26:27 | | description | | | healthmonitor_id | | | id | f413534e-1a3e-45c7-aa25-887f562f8a85 | | lb_algorithm | ROUND_ROBIN | | listeners | a4288021-ca95-4185-bf27-f3cde7b38d67 | | loadbalancers | 7b320a4f-95fd-49d5-8577-e00f7c20059e | | members | | | name | pool01 | | operating_status | OFFLINE | | project_id | de339c4cb5984140ab0b243364e3a0f7 | | 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 --all +--------------------------------------+----------------------------------------------+---------+--------------------------------------------+------------+------------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+----------------------------------------------+---------+--------------------------------------------+------------+------------+ | 2cada7b8-a1a8-4772-a8de-dbe78c956d6f | Web02 | ACTIVE | private=192.168.100.21 | Ubuntu2204 | m1.small | | 0bc75645-1812-4ed5-a67e-d635cfbad8f6 | Web01 | ACTIVE | private=192.168.100.175 | Ubuntu2204 | m1.small | | c4af23dd-3c3b-4363-9183-74aaeba65943 | amphora-64fa99da-2db1-4965-b3cf-4bd114be3c11 | ACTIVE | private=192.168.100.181; public=10.0.0.223 | Amphora | m1.octavia | | 6781b9c7-19c6-4419-a910-d0ae43c7526c | Ubuntu-2204 | SHUTOFF | private=10.0.0.203, 192.168.100.164 | Ubuntu2204 | m1.small | +--------------------------------------+----------------------------------------------+---------+--------------------------------------------+------------+------------+ # add web server instances to the pool member root@dlp ~(keystone)# openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.21 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.21 | | admin_state_up | True | | created_at | 2022-05-05T10:14:54 | | id | 46aa2d4d-143f-4c3c-ad18-d4844d2a0dfb | | name | | | operating_status | NO_MONITOR | | project_id | de339c4cb5984140ab0b243364e3a0f7 | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | a602f687-a0d5-4d8d-ba1f-51e7c87a606b | | 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 192.168.100.175 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.175 | | admin_state_up | True | | created_at | 2022-05-05T10:15:10 | | id | 0f56e26d-fe70-4ea2-ae0a-73e86ee52ab9 | | name | | | operating_status | NO_MONITOR | | project_id | de339c4cb5984140ab0b243364e3a0f7 | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | a602f687-a0d5-4d8d-ba1f-51e7c87a606b | | 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 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | 46aa2d4d-143f-4c3c-ad18-d4844d2a0dfb | | de339c4cb5984140ab0b243364e3a0f7 | ACTIVE | 192.168.100.21 | 80 | NO_MONITOR | 1 | | 0f56e26d-fe70-4ea2-ae0a-73e86ee52ab9 | | de339c4cb5984140ab0b243364e3a0f7 | ACTIVE | 192.168.100.175 | 80 | NO_MONITOR | 1 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ # create a floating IP on public network root@dlp ~(keystone)# openstack floating ip create public +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2022-05-05T10:15:44Z | | description | | | dns_domain | | | dns_name | | | fixed_ip_address | None | | floating_ip_address | 10.0.0.213 | | floating_network_id | ad1337fe-7b67-4e87-b4c4-9480bd60df8e | | id | 77d95d3c-0d3e-493d-a670-d75368f1eec5 | | name | 10.0.0.213 | | port_details | None | | port_id | None | | project_id | de339c4cb5984140ab0b243364e3a0f7 | | qos_policy_id | None | | revision_number | 0 | | router_id | None | | status | DOWN | | subnet_id | None | | tags | [] | | updated_at | 2022-05-05T10:15:44Z | +---------------------+--------------------------------------+ # associate 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 10.0.0.213
# verify settings to access to the floating IP root@dlp ~(keystone)# curl 10.0.0.213 Web Server on Instance01 root@dlp ~(keystone)# curl 10.0.0.213 Web Server on Instance02 root@dlp ~(keystone)# curl 10.0.0.213 Web Server on Instance01 root@dlp ~(keystone)# curl 10.0.0.213 Web Server on Instance02 |
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