OpenStack Antelope : How to use Octavia2023/04/20 |
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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)]# dnf --enablerepo=centos-openstack-antelope,epel,crb -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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[cent@dlp ~(keystone)]$ openstack subnet list +--------------------------------------+----------------+--------------------------------------+------------------+ | ID | Name | Network | Subnet | +--------------------------------------+----------------+--------------------------------------+------------------+ | bd8d7602-95e4-4540-971e-a0104dd8b658 | private-subnet | 913ec733-5a60-4df0-b182-49a393675bca | 192.168.100.0/24 | +--------------------------------------+----------------+--------------------------------------+------------------+[cent@dlp ~(keystone)]$ openstack loadbalancer create --name lb01 --vip-subnet-id private-subnet +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | admin_state_up | True | | availability_zone | None | | created_at | 2023-04-20T00:16:05 | | description | | | flavor_id | None | | id | ae91be56-804c-4fda-b17d-b11b2371cc88 | | listeners | | | name | lb01 | | operating_status | OFFLINE | | pools | | | project_id | 40aa0807595447f0bd8d5b2dbfa1839b | | provider | amphora | | provisioning_status | PENDING_CREATE | | updated_at | None | | vip_address | 192.168.100.64 | | vip_network_id | 913ec733-5a60-4df0-b182-49a393675bca | | vip_port_id | a0c2397b-2123-4bf2-ae9a-e2132996af3b | | vip_qos_policy_id | None | | vip_subnet_id | bd8d7602-95e4-4540-971e-a0104dd8b658 | | tags | | | additional_vips | [] | +---------------------+--------------------------------------+ # after a few minutes, status turns to [ACTIVE] if instance successfully created [cent@dlp ~(keystone)]$ openstack loadbalancer list +--------------------------------------+------+----------------------------------+----------------+---------------------+------------------+----------+ | id | name | project_id | vip_address | provisioning_status | operating_status | provider | +--------------------------------------+------+----------------------------------+----------------+---------------------+------------------+----------+ | ae91be56-804c-4fda-b17d-b11b2371cc88 | lb01 | 40aa0807595447f0bd8d5b2dbfa1839b | 192.168.100.64 | 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 [cent@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 | 2023-04-20T00:18:00 | | default_pool_id | None | | default_tls_container_ref | None | | description | | | id | 97ac9f57-3204-486d-9661-e35199d06cfc | | insert_headers | None | | l7policies | | | loadbalancers | ae91be56-804c-4fda-b17d-b11b2371cc88 | | name | listener01 | | operating_status | OFFLINE | | project_id | 40aa0807595447f0bd8d5b2dbfa1839b | | 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 [cent@dlp ~(keystone)]$ openstack loadbalancer pool create --name pool01 --lb-algorithm ROUND_ROBIN --listener listener01 --protocol TCP +----------------------+--------------------------------------+ | Field | Value | +----------------------+--------------------------------------+ | admin_state_up | True | | created_at | 2023-04-20T00:18:24 | | description | | | healthmonitor_id | | | id | 376ff833-4838-4d45-af4a-5593eddcdf72 | | lb_algorithm | ROUND_ROBIN | | listeners | 97ac9f57-3204-486d-9661-e35199d06cfc | | loadbalancers | ae91be56-804c-4fda-b17d-b11b2371cc88 | | members | | | name | pool01 | | operating_status | OFFLINE | | project_id | 40aa0807595447f0bd8d5b2dbfa1839b | | 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 [cent@dlp ~(keystone)]$ openstack server list +--------------------------------------+------------+---------+-------------------------------------+----------------+-----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+------------+---------+-------------------------------------+----------------+-----------+ | 6aa3410d-6f43-4c50-9b4e-51193e86f3cb | Web02 | ACTIVE | private=192.168.100.86 | CentOS-Stream9 | m1.small | | f299a117-41f4-41c2-828a-9fe0daae0d58 | Web01 | ACTIVE | private=192.168.100.188 | CentOS-Stream9 | m1.small | | 284a5b69-7b76-49c3-8180-c9b22284d429 | CentOS-St9 | SHUTOFF | private=10.0.0.229, 192.168.100.140 | CentOS-Stream9 | m1.medium | +--------------------------------------+------------+---------+-------------------------------------+----------------+-----------+ # add web server instances to the pool member [cent@dlp ~(keystone)]$ openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.86 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.86 | | admin_state_up | True | | created_at | 2023-04-20T00:24:24 | | id | b0e909a9-73fc-4885-891a-c484273dba69 | | name | | | operating_status | NO_MONITOR | | project_id | 40aa0807595447f0bd8d5b2dbfa1839b | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | bd8d7602-95e4-4540-971e-a0104dd8b658 | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | | tags | | +---------------------+--------------------------------------+[cent@dlp ~(keystone)]$ openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.188 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.188 | | admin_state_up | True | | created_at | 2023-04-20T00:24:42 | | id | 474ea35b-8ea1-49ca-8d1a-1e4ca70772f0 | | name | | | operating_status | NO_MONITOR | | project_id | 40aa0807595447f0bd8d5b2dbfa1839b | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | bd8d7602-95e4-4540-971e-a0104dd8b658 | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | | tags | | +---------------------+--------------------------------------+[cent@dlp ~(keystone)]$ openstack loadbalancer member list pool01 +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | id | name | project_id | provisioning_status | address | protocol_port | operating_status | weight | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | b0e909a9-73fc-4885-891a-c484273dba69 | | 40aa0807595447f0bd8d5b2dbfa1839b | ACTIVE | 192.168.100.86 | 80 | NO_MONITOR | 1 | | 474ea35b-8ea1-49ca-8d1a-1e4ca70772f0 | | 40aa0807595447f0bd8d5b2dbfa1839b | ACTIVE | 192.168.100.188 | 80 | NO_MONITOR | 1 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ # create a floating IP on public network [cent@dlp ~(keystone)]$ openstack floating ip create public +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2023-04-20T00:25:24Z | | description | | | dns_domain | | | dns_name | | | fixed_ip_address | None | | floating_ip_address | 10.0.0.224 | | floating_network_id | c1c6a4c6-776e-4c4f-b557-b9efc4a43ee8 | | id | cfc36f0b-4305-47dd-b471-53ae43a903f8 | | name | 10.0.0.224 | | port_details | None | | port_id | None | | project_id | 40aa0807595447f0bd8d5b2dbfa1839b | | qos_policy_id | None | | revision_number | 0 | | router_id | None | | status | DOWN | | subnet_id | None | | tags | [] | | updated_at | 2023-04-20T00:25:24Z | +---------------------+--------------------------------------+ # associate floating IP with VIP of loadbalancer instace [cent@dlp ~(keystone)]$ VIPPORT=$(openstack loadbalancer show lb01 | grep vip_port_id | awk {'print $4'}) [cent@dlp ~(keystone)]$ openstack floating ip set --port $VIPPORT 10.0.0.224
# verify settings to access to the floating IP [cent@dlp ~(keystone)]$ curl 10.0.0.224 Web Server on Instance01 [cent@dlp ~(keystone)]$ curl 10.0.0.224 Web Server on Instance02 [cent@dlp ~(keystone)]$ curl 10.0.0.224 Web Server on Instance01 [cent@dlp ~(keystone)]$ curl 10.0.0.224 Web Server on Instance02 |
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