OpenStack Victoria : How to use Octavia2020/11/27 |
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Install and Configure OpenStack Load Balancing as a Service (Octavia).
This example is based on the environment like follows.
Configured Networking is Geneve like here on this environment.
------------+---------------------------+---------------------------+------------
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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 | | Octavia Services | | OVN Metadata Agent |
| | | | | 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)]# openstack subnet list +--------------------------------------+----------------+--------------------------------------+------------------+ | ID | Name | Network | Subnet | +--------------------------------------+----------------+--------------------------------------+------------------+ | db0a36a6-5be6-4609-951e-27b4d3f9f5b9 | private-subnet | 431d7888-dcde-40dc-9727-ecfa65a25366 | 192.168.100.0/24 | | e09e5481-afaf-484e-9c7a-b24a3545d092 | public-subnet | dae78c9d-c885-4949-a05d-8e456f9ba1b9 | 10.0.0.0/24 | +--------------------------------------+----------------+--------------------------------------+------------------+[root@dlp ~(keystone)]# openstack loadbalancer create --name lb01 --vip-subnet-id private-subnet +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | admin_state_up | True | | availability_zone | None | | created_at | 2020-11-26T05:51:48 | | description | | | flavor_id | None | | id | 9a4aeebc-68fb-4e4e-ae5f-94ad9cb1ca44 | | listeners | | | name | lb01 | | operating_status | OFFLINE | | pools | | | project_id | f631c12338934447bb3172f3378d2b9a | | provider | amphora | | provisioning_status | PENDING_CREATE | | updated_at | None | | vip_address | 192.168.100.120 | | vip_network_id | 431d7888-dcde-40dc-9727-ecfa65a25366 | | vip_port_id | 4dec49a6-f9fd-4ba6-a23b-f85707a70640 | | vip_qos_policy_id | None | | vip_subnet_id | db0a36a6-5be6-4609-951e-27b4d3f9f5b9 | +---------------------+--------------------------------------+ # 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 | +--------------------------------------+------+----------------------------------+-----------------+---------------------+------------------+----------+ | 9a4aeebc-68fb-4e4e-ae5f-94ad9cb1ca44 | lb01 | f631c12338934447bb3172f3378d2b9a | 192.168.100.120 | 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 | 2020-11-26T05:54:59 | | default_pool_id | None | | default_tls_container_ref | None | | description | | | id | cb27a811-f50f-44cc-95a2-c34dee021928 | | insert_headers | None | | l7policies | | | loadbalancers | 9a4aeebc-68fb-4e4e-ae5f-94ad9cb1ca44 | | name | listener01 | | operating_status | OFFLINE | | project_id | f631c12338934447bb3172f3378d2b9a | | 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 | 2020-11-26T05:55:17 | | description | | | healthmonitor_id | | | id | 79c101d8-5347-4737-add7-5e33ec51c056 | | lb_algorithm | ROUND_ROBIN | | listeners | cb27a811-f50f-44cc-95a2-c34dee021928 | | loadbalancers | 9a4aeebc-68fb-4e4e-ae5f-94ad9cb1ca44 | | members | | | name | pool01 | | operating_status | OFFLINE | | project_id | f631c12338934447bb3172f3378d2b9a | | 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 | +--------------------------------------+---------------+--------+-------------------------+---------+----------+ | 1df58f38-bac2-46a7-ba6d-fb21fc43d120 | CentOS-8-Web2 | ACTIVE | private=192.168.100.207 | CentOS8 | m1.small | | 65e97bf7-0561-437c-9301-f679bd81dc07 | CentOS-8-Web1 | ACTIVE | private=192.168.100.154 | CentOS8 | m1.small | +--------------------------------------+---------------+--------+-------------------------+---------+----------+ # add web server instances to the pool member [root@dlp ~(keystone)]# openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.207 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.207 | | admin_state_up | True | | created_at | 2020-11-26T05:59:27 | | id | 636cd334-0a11-421a-9926-370b30116724 | | name | | | operating_status | NO_MONITOR | | project_id | f631c12338934447bb3172f3378d2b9a | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | db0a36a6-5be6-4609-951e-27b4d3f9f5b9 | | 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 192.168.100.154 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.154 | | admin_state_up | True | | created_at | 2020-11-26T05:59:44 | | id | 0bf65bc4-03a3-4fe7-9991-fb7c67e3da2c | | name | | | operating_status | NO_MONITOR | | project_id | f631c12338934447bb3172f3378d2b9a | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | db0a36a6-5be6-4609-951e-27b4d3f9f5b9 | | 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 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | 636cd334-0a11-421a-9926-370b30116724 | | f631c12338934447bb3172f3378d2b9a | ACTIVE | 192.168.100.207 | 80 | NO_MONITOR | 1 | | 0bf65bc4-03a3-4fe7-9991-fb7c67e3da2c | | f631c12338934447bb3172f3378d2b9a | ACTIVE | 192.168.100.154 | 80 | NO_MONITOR | 1 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ # create a floating IP on public network [root@dlp ~(keystone)]# openstack floating ip create public +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2020-11-26T06:00:16Z | | description | | | dns_domain | | | dns_name | | | fixed_ip_address | None | | floating_ip_address | 10.0.0.250 | | floating_network_id | dae78c9d-c885-4949-a05d-8e456f9ba1b9 | | id | b107cd4e-c3a6-40ad-88b9-60e5b9af4ba7 | | name | 10.0.0.250 | | port_details | None | | port_id | None | | project_id | f631c12338934447bb3172f3378d2b9a | | qos_policy_id | None | | revision_number | 0 | | router_id | None | | status | DOWN | | subnet_id | None | | tags | [] | | updated_at | 2020-11-26T06:00:16Z | +---------------------+--------------------------------------+ # 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 10.0.0.250
# verify settings to access to the floating IP [root@dlp ~(keystone)]# curl 10.0.0.250 Web Server on Instance01 [root@dlp ~(keystone)]# curl 10.0.0.250 Web Server on Instance02 [root@dlp ~(keystone)]# curl 10.0.0.250 Web Server on Instance01 [root@dlp ~(keystone)]# curl 10.0.0.250 Web Server on Instance02 |
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