OpenStack Victoria : How to use Octavia2021/03/26 |
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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 ] | | [ Network 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 | | iSCSI Target | | OVN-Controller |
| | | Octavia Services | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Create a 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)]# openstack subnet list +--------------------------------------+----------------+--------------------------------------+------------------+ | ID | Name | Network | Subnet | +--------------------------------------+----------------+--------------------------------------+------------------+ | 63c29d7b-e870-477d-819b-e5dfe41af1d0 | public-subnet | ea9725cf-a8bc-4eb5-a374-7d7d0e11453c | 10.0.0.0/24 | | 94afb0cc-1d58-4615-8fef-8852271bfc16 | private-subnet | 9f53c3b1-ec6b-499d-854a-588d3b0b96d6 | 192.168.100.0/24 | +--------------------------------------+----------------+--------------------------------------+------------------+[root@dlp ~(keystone)]# openstack loadbalancer create --name lb01 --vip-subnet-id private-subnet +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | admin_state_up | True | | availability_zone | None | | created_at | 2021-03-25T07:40:09 | | description | | | flavor_id | None | | id | c0c736f4-19cf-49fb-8929-3be1a4be0fa2 | | listeners | | | name | lb01 | | operating_status | OFFLINE | | pools | | | project_id | b9bf51c6436a4c5aa7a2df05688afb49 | | provider | amphora | | provisioning_status | PENDING_CREATE | | updated_at | None | | vip_address | 192.168.100.52 | | vip_network_id | 9f53c3b1-ec6b-499d-854a-588d3b0b96d6 | | vip_port_id | 477c07ee-a521-47a1-8591-7cb0b7e48bd5 | | vip_qos_policy_id | None | | vip_subnet_id | 94afb0cc-1d58-4615-8fef-8852271bfc16 | +---------------------+--------------------------------------+ # 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 | +--------------------------------------+------+----------------------------------+----------------+---------------------+------------------+----------+ | c0c736f4-19cf-49fb-8929-3be1a4be0fa2 | lb01 | b9bf51c6436a4c5aa7a2df05688afb49 | 192.168.100.52 | 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 | 2021-03-25T07:42:38 | | default_pool_id | None | | default_tls_container_ref | None | | description | | | id | 0bb16cd7-41f0-4847-915a-ebf083e34a42 | | insert_headers | None | | l7policies | | | loadbalancers | c0c736f4-19cf-49fb-8929-3be1a4be0fa2 | | name | listener01 | | operating_status | OFFLINE | | project_id | b9bf51c6436a4c5aa7a2df05688afb49 | | 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 | +-----------------------------+--------------------------------------+ # 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 | 2021-03-25T07:43:02 | | description | | | healthmonitor_id | | | id | 71ea3911-1b81-404c-b547-a209ae39e0b9 | | lb_algorithm | ROUND_ROBIN | | listeners | 0bb16cd7-41f0-4847-915a-ebf083e34a42 | | loadbalancers | c0c736f4-19cf-49fb-8929-3be1a4be0fa2 | | members | | | name | pool01 | | operating_status | OFFLINE | | project_id | b9bf51c6436a4c5aa7a2df05688afb49 | | 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 | +----------------------+--------------------------------------+ # web server instances [root@dlp ~(keystone)]# openstack server list +--------------------------------------+-------+--------+-------------------------+-----------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+-------+--------+-------------------------+-----------------+----------+ | 2c9582b9-1797-45b2-add8-68785d1be283 | Web02 | ACTIVE | private=192.168.100.74 | CentOS-Stream-8 | m1.small | | 92bf24c1-a8f5-41df-8f10-ea7f58184696 | Web01 | ACTIVE | private=192.168.100.144 | CentOS-Stream-8 | m1.small | +--------------------------------------+-------+--------+-------------------------+-----------------+----------+ # add web server instances to the pool member [root@dlp ~(keystone)]# openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.74 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.74 | | admin_state_up | True | | created_at | 2021-03-25T07:53:01 | | id | fa6d0183-722c-41c1-8820-5d28c99779b1 | | name | | | operating_status | NO_MONITOR | | project_id | b9bf51c6436a4c5aa7a2df05688afb49 | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | 94afb0cc-1d58-4615-8fef-8852271bfc16 | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | +---------------------+--------------------------------------+[root@dlp ~(keystone)]# openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.144 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.144 | | admin_state_up | True | | created_at | 2021-03-25T07:53:17 | | id | 4b396d5a-4ad5-472b-9c13-ffcf562d856d | | name | | | operating_status | NO_MONITOR | | project_id | b9bf51c6436a4c5aa7a2df05688afb49 | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | 94afb0cc-1d58-4615-8fef-8852271bfc16 | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | +---------------------+--------------------------------------+[root@dlp ~(keystone)]# openstack loadbalancer member list pool01 +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | id | name | project_id | provisioning_status | address | protocol_port | operating_status | weight | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | fa6d0183-722c-41c1-8820-5d28c99779b1 | | b9bf51c6436a4c5aa7a2df05688afb49 | ACTIVE | 192.168.100.74 | 80 | NO_MONITOR | 1 | | 4b396d5a-4ad5-472b-9c13-ffcf562d856d | | b9bf51c6436a4c5aa7a2df05688afb49 | ACTIVE | 192.168.100.144 | 80 | NO_MONITOR | 1 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ # create a floating IP on public network [root@dlp ~(keystone)]# openstack floating ip create public +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2021-03-25T07:53:50Z | | description | | | dns_domain | None | | dns_name | None | | fixed_ip_address | None | | floating_ip_address | 10.0.0.229 | | floating_network_id | ea9725cf-a8bc-4eb5-a374-7d7d0e11453c | | id | fb51e61d-1233-4f94-8268-04abc632fe0d | | name | 10.0.0.229 | | port_details | None | | port_id | None | | project_id | b9bf51c6436a4c5aa7a2df05688afb49 | | qos_policy_id | None | | revision_number | 0 | | router_id | None | | status | DOWN | | subnet_id | None | | tags | [] | | updated_at | 2021-03-25T07:53:50Z | +---------------------+--------------------------------------+ # 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 10.0.0.229
# verify settings to access to the floating IP [root@dlp ~(keystone)]# curl 10.0.0.229 Web Server on Instance01 [root@dlp ~(keystone)]# curl 10.0.0.229 Web Server on Instance02 [root@dlp ~(keystone)]# curl 10.0.0.229 Web Server on Instance01 [root@dlp ~(keystone)]# curl 10.0.0.229 Web Server on Instance02 |
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