OpenStack Xena : How to use Octavia2021/10/08 |
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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 ] | | [ Storage 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 | | 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 | +--------------------------------------+----------------+--------------------------------------+------------------+ | 694a93ec-762f-4c2e-b8f3-4f5aa72b631e | public-subnet | 35816d4c-fa30-4901-8aa5-3749970fa706 | 10.0.0.0/24 | | 77ab8a8b-9cca-4f4a-90c6-a61f8a58f08d | private-subnet | a5d44a8a-4980-4c19-a53a-26af6aabd732 | 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 | 2021-10-08T05:03:26 | | description | | | flavor_id | None | | id | 986331e6-be7e-4dd6-96c7-bb1ecde17b7a | | listeners | | | name | lb01 | | operating_status | OFFLINE | | pools | | | project_id | f4431102f2d9415590e3ac11c616858a | | provider | amphora | | provisioning_status | PENDING_CREATE | | updated_at | None | | vip_address | 192.168.100.177 | | vip_network_id | a5d44a8a-4980-4c19-a53a-26af6aabd732 | | vip_port_id | 9948f5ae-c98f-4e8c-a1b0-38b8516ef7d7 | | vip_qos_policy_id | None | | vip_subnet_id | 77ab8a8b-9cca-4f4a-90c6-a61f8a58f08d | | tags | | +---------------------+--------------------------------------+ # 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 | +--------------------------------------+------+----------------------------------+-----------------+---------------------+------------------+----------+ | 986331e6-be7e-4dd6-96c7-bb1ecde17b7a | lb01 | f4431102f2d9415590e3ac11c616858a | 192.168.100.177 | 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 | 2021-10-08T05:08:19 | | default_pool_id | None | | default_tls_container_ref | None | | description | | | id | cc123fd0-f28b-4077-a71f-4125be43126f | | insert_headers | None | | l7policies | | | loadbalancers | 986331e6-be7e-4dd6-96c7-bb1ecde17b7a | | name | listener01 | | operating_status | OFFLINE | | project_id | f4431102f2d9415590e3ac11c616858a | | 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 | 2021-10-08T05:08:36 | | description | | | healthmonitor_id | | | id | 01b0ce47-1f4a-4673-8669-3891fc9cecb7 | | lb_algorithm | ROUND_ROBIN | | listeners | cc123fd0-f28b-4077-a71f-4125be43126f | | loadbalancers | 986331e6-be7e-4dd6-96c7-bb1ecde17b7a | | members | | | name | pool01 | | operating_status | OFFLINE | | project_id | f4431102f2d9415590e3ac11c616858a | | 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 | +--------------------------------------+----------------------------------------------+---------+-------------------------------------------+------------+------------+ | 7cfa7b6b-ab77-46b0-a43a-5c7a1fd70c8b | Web02 | ACTIVE | private=192.168.100.193 | Ubuntu2004 | m1.small | | 5d25cb2b-7537-4a7b-ab10-5cca4c93828b | Web01 | ACTIVE | private=192.168.100.53 | Ubuntu2004 | m1.small | | d6b7dc51-51c4-4b50-998e-022304f0de3b | amphora-c71c1dea-eeb6-4778-9a12-8ef416887416 | ACTIVE | private=192.168.100.29; public=10.0.0.222 | Amphora | m1.octavia | | 4699d575-1d94-4024-8323-9dfa3599c8d2 | Ubuntu-2004 | SHUTOFF | private=10.0.0.249, 192.168.100.237 | Ubuntu2004 | m1.small | +--------------------------------------+----------------------------------------------+---------+-------------------------------------------+------------+------------+ # add web server instances to the pool member root@dlp ~(keystone)# openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.53 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.53 | | admin_state_up | True | | created_at | 2021-10-08T05:44:34 | | id | ff33cd0e-5f10-4442-9b92-240a2d18c6a5 | | name | | | operating_status | NO_MONITOR | | project_id | f4431102f2d9415590e3ac11c616858a | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | 77ab8a8b-9cca-4f4a-90c6-a61f8a58f08d | | 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 192.168.100.193 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.193 | | admin_state_up | True | | created_at | 2021-10-08T05:44:49 | | id | 5fea3980-9dce-4c8b-94e8-dc1fd12d4b18 | | name | | | operating_status | NO_MONITOR | | project_id | f4431102f2d9415590e3ac11c616858a | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | 77ab8a8b-9cca-4f4a-90c6-a61f8a58f08d | | 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 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | ff33cd0e-5f10-4442-9b92-240a2d18c6a5 | | f4431102f2d9415590e3ac11c616858a | ACTIVE | 192.168.100.53 | 80 | NO_MONITOR | 1 | | 5fea3980-9dce-4c8b-94e8-dc1fd12d4b18 | | f4431102f2d9415590e3ac11c616858a | ACTIVE | 192.168.100.193 | 80 | NO_MONITOR | 1 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ # create a floating IP on public network root@dlp ~(keystone)# openstack floating ip create public +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2021-10-08T05:46:00Z | | description | | | dns_domain | | | dns_name | | | fixed_ip_address | None | | floating_ip_address | 10.0.0.212 | | floating_network_id | 35816d4c-fa30-4901-8aa5-3749970fa706 | | id | 57d2ecbb-41da-4d49-9e17-e2ff268ff770 | | name | 10.0.0.212 | | port_details | None | | port_id | None | | project_id | f4431102f2d9415590e3ac11c616858a | | qos_policy_id | None | | revision_number | 0 | | router_id | None | | status | DOWN | | subnet_id | None | | tags | [] | | updated_at | 2021-10-08T05:46:00Z | +---------------------+--------------------------------------+ # 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 10.0.0.212
# verify settings to access to the floating IP root@dlp ~(keystone)# curl 10.0.0.212 Web Server on Instance01 root@dlp ~(keystone)# curl 10.0.0.212 Web Server on Instance02 root@dlp ~(keystone)# curl 10.0.0.212 Web Server on Instance01 root@dlp ~(keystone)# curl 10.0.0.212 Web Server on Instance02 |
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