OpenStack Dalmatian : How to use Octavia2024/10/24 |
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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] | Install Octavia client tool. |
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root@dlp ~(keystone)# apt -y install python3-octaviaclient
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| [2] | Login as any Openstack user and create Loadbalancer instance. It's OK to work on any node. (example below is on Control Node) |
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ubuntu@dlp ~(keystone)$ openstack subnet list +--------------------+----------------+---------------------+------------------+ | ID | Name | Network | Subnet | +--------------------+----------------+---------------------+------------------+ | 22837749-299e- | public-subnet | ce38ba4f-6066-4e93- | 10.0.0.0/24 | | 4323-bfc3- | | ae59-de238fb6ed08 | | | 3120c8c2d635 | | | | | bc45dd3e-0b15- | private-subnet | 2da36a04-0d3e-4de8- | 192.168.100.0/24 | | 42ca-a37b- | | 9be8-a2972c15bbe4 | | | 94f2feaf341e | | | | +--------------------+----------------+---------------------+------------------+ubuntu@dlp ~(keystone)$ openstack loadbalancer create --name lb01 --vip-subnet-id private-subnet +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | admin_state_up | True | | availability_zone | None | | created_at | 2024-10-24T00:44:44 | | description | | | flavor_id | None | | id | 91b072b8-e06a-48e4-b6e8-37c1ea3899c6 | | listeners | | | name | lb01 | | operating_status | OFFLINE | | pools | | | project_id | 84e315c8d65e4b3cb33aaf69c9eed0c3 | | provider | amphora | | provisioning_status | PENDING_CREATE | | updated_at | None | | vip_address | 192.168.100.34 | | vip_network_id | 2da36a04-0d3e-4de8-9be8-a2972c15bbe4 | | vip_port_id | f59bb54b-a37a-4bce-a5b5-db663df8f190 | | vip_qos_policy_id | None | | vip_subnet_id | bc45dd3e-0b15-42ca-a37b-94f2feaf341e | | vip_vnic_type | normal | | tags | | | additional_vips | [] | +---------------------+--------------------------------------+ # after a few minutes, status turns to [ACTIVE] if instance successfully created ubuntu@dlp ~(keystone)$ openstack loadbalancer list +-----------+------+------------+-------------+---------------------+------------------+----------+ | id | name | project_id | vip_address | provisioning_status | operating_status | provider | +-----------+------+------------+-------------+---------------------+------------------+----------+ | 91b072b8- | lb01 | 84e315c8d6 | 192.168.100 | ACTIVE | OFFLINE | amphora | | e06a- | | 5e4b3cb33a | .34 | | | | | 48e4- | | af69c9eed0 | | | | | | b6e8- | | c3 | | | | | | 37c1ea389 | | | | | | | | 9c6 | | | | | | | +-----------+------+------------+-------------+---------------------+------------------+----------+ |
| [3] | 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 ubuntu@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 | 2024-10-24T00:47:16 | | default_pool_id | None | | default_tls_container_ref | None | | description | | | id | f562d192-85bc-4db6-96e4-2e0fb1bca232 | | insert_headers | None | | l7policies | | | loadbalancers | 91b072b8-e06a-48e4-b6e8-37c1ea3899c6 | | name | listener01 | | operating_status | OFFLINE | | project_id | 84e315c8d65e4b3cb33aaf69c9eed0c3 | | 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 | | | hsts_max_age | None | | hsts_include_subdomains | False | | hsts_preload | False | +-----------------------------+--------------------------------------+ # add a pool to the listener ubuntu@dlp ~(keystone)$ openstack loadbalancer pool create --name pool01 --lb-algorithm ROUND_ROBIN --listener listener01 --protocol TCP +----------------------+--------------------------------------+ | Field | Value | +----------------------+--------------------------------------+ | admin_state_up | True | | created_at | 2024-10-24T00:47:49 | | description | | | healthmonitor_id | | | id | 0e9135cd-31f9-434e-a2d7-9dc63d62e7ff | | lb_algorithm | ROUND_ROBIN | | listeners | f562d192-85bc-4db6-96e4-2e0fb1bca232 | | loadbalancers | 91b072b8-e06a-48e4-b6e8-37c1ea3899c6 | | members | | | name | pool01 | | operating_status | OFFLINE | | project_id | 84e315c8d65e4b3cb33aaf69c9eed0c3 | | 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 ubuntu@dlp ~(keystone)$ openstack server list +------------------+-------+--------+------------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +------------------+-------+--------+------------------+------------+----------+ | fb215355-6d93- | Web02 | ACTIVE | private=192.168. | Ubuntu2404 | m1.small | | 4d73-bc99- | | | 100.138 | | | | 453a9c674d62 | | | | | | | 605d794e-6cbd- | Web01 | ACTIVE | private=192.168. | Ubuntu2404 | m1.small | | 4cea-abc2- | | | 100.181 | | | | 5a1074ccec70 | | | | | | +------------------+-------+--------+------------------+------------+----------+ # add web server instances to the pool member ubuntu@dlp ~(keystone)$ openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.138 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.138 | | admin_state_up | True | | created_at | 2024-10-24T01:02:53 | | id | 9172971b-f525-4ace-ac9c-5c53c9052bc2 | | name | | | operating_status | NO_MONITOR | | project_id | 84e315c8d65e4b3cb33aaf69c9eed0c3 | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | bc45dd3e-0b15-42ca-a37b-94f2feaf341e | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | | tags | | | vnic_type | normal | +---------------------+--------------------------------------+ubuntu@dlp ~(keystone)$ openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.181 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.181 | | admin_state_up | True | | created_at | 2024-10-24T01:03:07 | | id | dadcb676-5dcc-40d3-958b-3232b0ea3996 | | name | | | operating_status | NO_MONITOR | | project_id | 84e315c8d65e4b3cb33aaf69c9eed0c3 | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | bc45dd3e-0b15-42ca-a37b-94f2feaf341e | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | | tags | | | vnic_type | normal | +---------------------+--------------------------------------+ubuntu@dlp ~(keystone)$ openstack loadbalancer member list pool01 +----------+------+------------+---------------------+----------+---------------+------------------+--------+ | id | name | project_id | provisioning_status | address | protocol_port | operating_status | weight | +----------+------+------------+---------------------+----------+---------------+------------------+--------+ | 9172971b | | 84e315c8d6 | ACTIVE | 192.168. | 80 | NO_MONITOR | 1 | | -f525- | | 5e4b3cb33a | | 100.138 | | | | | 4ace-ac9 | | af69c9eed0 | | | | | | | c- | | c3 | | | | | | | 5c53c905 | | | | | | | | | 2bc2 | | | | | | | | | dadcb676 | | 84e315c8d6 | ACTIVE | 192.168. | 80 | NO_MONITOR | 1 | | -5dcc- | | 5e4b3cb33a | | 100.181 | | | | | 40d3- | | af69c9eed0 | | | | | | | 958b- | | c3 | | | | | | | 3232b0ea | | | | | | | | | 3996 | | | | | | | | +----------+------+------------+---------------------+----------+---------------+------------------+--------+ # create a floating IP on public network ubuntu@dlp ~(keystone)$ openstack floating ip create public +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2024-10-24T01:04:03Z | | description | | | dns_domain | | | dns_name | | | fixed_ip_address | None | | floating_ip_address | 10.0.0.228 | | floating_network_id | ce38ba4f-6066-4e93-ae59-de238fb6ed08 | | id | 0d4efa8e-68d0-42be-a908-c76202b33f3f | | name | 10.0.0.228 | | port_details | None | | port_id | None | | project_id | 84e315c8d65e4b3cb33aaf69c9eed0c3 | | qos_policy_id | None | | revision_number | 0 | | router_id | None | | status | DOWN | | subnet_id | None | | tags | [] | | updated_at | 2024-10-24T01:04:03Z | +---------------------+--------------------------------------+ # associate floating IP with VIP of loadbalancer instace ubuntu@dlp ~(keystone)$ VIPPORT=$(openstack loadbalancer show lb01 | grep vip_port_id | awk {'print $4'}) ubuntu@dlp ~(keystone)$ openstack floating ip set --port $VIPPORT 10.0.0.228
# verify settings to access to the floating IP ubuntu@dlp ~(keystone)$ curl 10.0.0.228 Web Server on Instance01 ubuntu@dlp ~(keystone)$ curl 10.0.0.228 Web Server on Instance02 ubuntu@dlp ~(keystone)$ curl 10.0.0.228 Web Server on Instance01 ubuntu@dlp ~(keystone)$ curl 10.0.0.228 Web Server on Instance02 |
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