OpenStack Bobcat : How to use Octavia2023/10/09 |
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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 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 | +--------------------------------------+----------------+--------------------------------------+------------------+ | e14c5e7d-41d0-4378-af0f-0993c4389593 | private-subnet | 529ae54a-4bba-40a3-905d-2ca57557236a | 192.168.100.0/24 | +--------------------------------------+----------------+--------------------------------------+------------------+ubuntu@dlp ~(keystone)$ openstack loadbalancer create --name lb01 --vip-subnet-id private-subnet +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | admin_state_up | True | | availability_zone | None | | created_at | 2023-10-09T02:12:17 | | description | | | flavor_id | None | | id | ec3dfec8-1008-4a5c-a171-4ed2615b9b04 | | listeners | | | name | lb01 | | operating_status | OFFLINE | | pools | | | project_id | f30cd546632e484cb24414d83207694b | | provider | amphora | | provisioning_status | PENDING_CREATE | | updated_at | None | | vip_address | 192.168.100.12 | | vip_network_id | 529ae54a-4bba-40a3-905d-2ca57557236a | | vip_port_id | 2ed63575-343c-4602-a920-9c0c45c56003 | | vip_qos_policy_id | None | | vip_subnet_id | e14c5e7d-41d0-4378-af0f-0993c4389593 | | 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 | +--------------------------------------+------+----------------------------------+----------------+---------------------+------------------+----------+ | ec3dfec8-1008-4a5c-a171-4ed2615b9b04 | lb01 | f30cd546632e484cb24414d83207694b | 192.168.100.12 | ACTIVE | OFFLINE | amphora | +--------------------------------------+------+----------------------------------+----------------+---------------------+------------------+----------+ |
| [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 | 2023-10-09T02:13:21 | | default_pool_id | None | | default_tls_container_ref | None | | description | | | id | 28348127-3cf8-43b6-9f26-55e93bb290d7 | | insert_headers | None | | l7policies | | | loadbalancers | ec3dfec8-1008-4a5c-a171-4ed2615b9b04 | | name | listener01 | | operating_status | OFFLINE | | project_id | f30cd546632e484cb24414d83207694b | | 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 | 2023-10-09T02:13:59 | | description | | | healthmonitor_id | | | id | 93d3459b-0e7e-406a-8a08-27c739620826 | | lb_algorithm | ROUND_ROBIN | | listeners | 28348127-3cf8-43b6-9f26-55e93bb290d7 | | loadbalancers | ec3dfec8-1008-4a5c-a171-4ed2615b9b04 | | members | | | name | pool01 | | operating_status | OFFLINE | | project_id | f30cd546632e484cb24414d83207694b | | 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 | +--------------------------------------+-------------+---------+------------------------------------+------------+-----------+ | 0f3b7e03-333b-4d6c-b5ca-b8fa5c5418a5 | Web02 | ACTIVE | private=192.168.100.43 | Ubuntu2204 | m1.medium | | 1b60f8cb-a463-4eaf-9c07-d9b8eb078c25 | Web01 | ACTIVE | private=192.168.100.30 | Ubuntu2204 | m1.medium | | 530698ed-413e-4bda-b02e-8f6f60380bd1 | Ubuntu-2204 | SHUTOFF | private=10.0.0.222, 192.168.100.79 | Ubuntu2204 | m1.medium | +--------------------------------------+-------------+---------+------------------------------------+------------+-----------+ # add web server instances to the pool member ubuntu@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 | 2023-10-09T02:27:47 | | id | 3708260b-14d7-4d6c-959e-5b316f1799fa | | name | | | operating_status | NO_MONITOR | | project_id | f30cd546632e484cb24414d83207694b | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | e14c5e7d-41d0-4378-af0f-0993c4389593 | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | | tags | | +---------------------+--------------------------------------+ubuntu@dlp ~(keystone)$ openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.30 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.30 | | admin_state_up | True | | created_at | 2023-10-09T02:28:14 | | id | 97c2915a-1250-476b-a921-9b121711ee13 | | name | | | operating_status | NO_MONITOR | | project_id | f30cd546632e484cb24414d83207694b | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | e14c5e7d-41d0-4378-af0f-0993c4389593 | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | | tags | | +---------------------+--------------------------------------+ubuntu@dlp ~(keystone)$ openstack loadbalancer member list pool01 +--------------------------------------+------+----------------------------------+---------------------+----------------+---------------+------------------+--------+ | id | name | project_id | provisioning_status | address | protocol_port | operating_status | weight | +--------------------------------------+------+----------------------------------+---------------------+----------------+---------------+------------------+--------+ | 3708260b-14d7-4d6c-959e-5b316f1799fa | | f30cd546632e484cb24414d83207694b | ACTIVE | 192.168.100.43 | 80 | NO_MONITOR | 1 | | 97c2915a-1250-476b-a921-9b121711ee13 | | f30cd546632e484cb24414d83207694b | ACTIVE | 192.168.100.30 | 80 | NO_MONITOR | 1 | +--------------------------------------+------+----------------------------------+---------------------+----------------+---------------+------------------+--------+ # create a floating IP on public network ubuntu@dlp ~(keystone)$ openstack floating ip create public +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2023-10-09T02:29:23Z | | description | | | dns_domain | | | dns_name | | | fixed_ip_address | None | | floating_ip_address | 10.0.0.236 | | floating_network_id | 1d42f5e1-1ff2-4f70-8c48-8c7f6eae0672 | | id | 745f488c-dc16-402a-8815-3ebb1ff8cf2a | | name | 10.0.0.236 | | port_details | None | | port_id | None | | project_id | f30cd546632e484cb24414d83207694b | | qos_policy_id | None | | revision_number | 0 | | router_id | None | | status | DOWN | | subnet_id | None | | tags | [] | | updated_at | 2023-10-09T02:29:23Z | +---------------------+--------------------------------------+ # 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 $VIPPORT 10.0.0.236
# verify settings to access to the floating IP ubuntu@dlp ~(keystone)$ curl 10.0.0.236 Web Server on Instance01 ubuntu@dlp ~(keystone)$ curl 10.0.0.236 Web Server on Instance02 ubuntu@dlp ~(keystone)$ curl 10.0.0.236 Web Server on Instance01 ubuntu@dlp ~(keystone)$ curl 10.0.0.236 Web Server on Instance02 |
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