OpenStack Yoga : How to use Octavia2022/04/12 |
|
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
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ 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 |
+-----------------------+ +-----------------------+ +-----------------------+
|
| [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) |
|
root@dlp ~(keystone)#
root@dlp ~(keystone)# apt -y install python3-octaviaclient openstack subnet list +--------------------------------------+----------------+--------------------------------------+------------------+ | ID | Name | Network | Subnet | +--------------------------------------+----------------+--------------------------------------+------------------+ | 5d1edead-636e-4622-942a-bfd2347908e3 | private-subnet | b19c6ee5-26f7-4a98-8a8c-58a2e7637610 | 192.168.100.0/24 | | 99f81758-a8a8-4a25-8c20-a8c52f374815 | public-subnet | 8fd7472d-9182-4a17-aa35-984fb7fb059d | 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 | 2022-04-12T04:53:40 | | description | | | flavor_id | None | | id | 3925a640-bf21-47d5-a0a0-2bd69e58fc60 | | listeners | | | name | lb01 | | operating_status | OFFLINE | | pools | | | project_id | ddb7c08ba73a48eea040270d13a7b0cf | | provider | amphora | | provisioning_status | PENDING_CREATE | | updated_at | None | | vip_address | 192.168.100.41 | | vip_network_id | b19c6ee5-26f7-4a98-8a8c-58a2e7637610 | | vip_port_id | a01a6e53-777a-45d8-a81d-392c0b98c1c2 | | vip_qos_policy_id | None | | vip_subnet_id | 5d1edead-636e-4622-942a-bfd2347908e3 | | 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 | +--------------------------------------+------+----------------------------------+----------------+---------------------+------------------+----------+ | 3925a640-bf21-47d5-a0a0-2bd69e58fc60 | lb01 | ddb7c08ba73a48eea040270d13a7b0cf | 192.168.100.41 | ACTIVE | OFFLINE | amphora | +--------------------------------------+------+----------------------------------+----------------+---------------------+------------------+----------+ |
| [2] | Add a listener and pool to the instance and Configure loadbalancing to use 2 backend Web Server instances. |
|
# 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 | 2022-04-12T04:55:53 | | default_pool_id | None | | default_tls_container_ref | None | | description | | | id | 7ba8f04a-083c-47ed-8c85-88f48b91abdd | | insert_headers | None | | l7policies | | | loadbalancers | 3925a640-bf21-47d5-a0a0-2bd69e58fc60 | | name | listener01 | | operating_status | OFFLINE | | project_id | ddb7c08ba73a48eea040270d13a7b0cf | | 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 | 2022-04-12T04:56:40 | | description | | | healthmonitor_id | | | id | 4dc424cc-2023-46f4-811b-7b651978697b | | lb_algorithm | ROUND_ROBIN | | listeners | 7ba8f04a-083c-47ed-8c85-88f48b91abdd | | loadbalancers | 3925a640-bf21-47d5-a0a0-2bd69e58fc60 | | members | | | name | pool01 | | operating_status | OFFLINE | | project_id | ddb7c08ba73a48eea040270d13a7b0cf | | 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 | +--------------------------------------+----------------------------------------------+---------+--------------------------------------------+------------+------------+ | a113c516-2dbb-43b8-9a5d-9aad029bb147 | Web02 | ACTIVE | private=192.168.100.101 | Ubuntu2004 | m1.small | | 22591df1-91b9-4efa-b3be-a32bb09bb7cc | Web01 | ACTIVE | private=192.168.100.214 | Ubuntu2004 | m1.small | | 6b22fd88-4438-4387-960b-e1d2f4f8c416 | amphora-8be98176-c389-4836-833d-19f676a998c0 | ACTIVE | private=192.168.100.102; public=10.0.0.216 | Amphora | m1.octavia | | 90aff00b-7f8f-4d4c-8929-85c4dbe555df | Ubuntu-2004 | SHUTOFF | private=10.0.0.242, 192.168.100.134 | Ubuntu2004 | m1.small | +--------------------------------------+----------------------------------------------+---------+--------------------------------------------+------------+------------+ # add web server instances to the pool member root@dlp ~(keystone)# openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.214 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.214 | | admin_state_up | True | | created_at | 2022-04-12T04:59:33 | | id | 01ed1232-63b3-4eec-a9e4-45c0abd6586c | | name | | | operating_status | NO_MONITOR | | project_id | ddb7c08ba73a48eea040270d13a7b0cf | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | 5d1edead-636e-4622-942a-bfd2347908e3 | | 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 192.168.100.101 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.101 | | admin_state_up | True | | created_at | 2022-04-12T04:59:49 | | id | 3512e6b2-7b39-4bab-8287-95fcccf56e9e | | name | | | operating_status | NO_MONITOR | | project_id | ddb7c08ba73a48eea040270d13a7b0cf | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | 5d1edead-636e-4622-942a-bfd2347908e3 | | 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 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | 01ed1232-63b3-4eec-a9e4-45c0abd6586c | | ddb7c08ba73a48eea040270d13a7b0cf | ACTIVE | 192.168.100.214 | 80 | NO_MONITOR | 1 | | 3512e6b2-7b39-4bab-8287-95fcccf56e9e | | ddb7c08ba73a48eea040270d13a7b0cf | ACTIVE | 192.168.100.101 | 80 | NO_MONITOR | 1 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ # create a floating IP on public network root@dlp ~(keystone)# openstack floating ip create public +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2022-04-12T05:00:19Z | | description | | | dns_domain | | | dns_name | | | fixed_ip_address | None | | floating_ip_address | 10.0.0.223 | | floating_network_id | 8fd7472d-9182-4a17-aa35-984fb7fb059d | | id | 51b6ffd6-ad4a-4bbd-9896-48985e6ae0c3 | | name | 10.0.0.223 | | port_details | None | | port_id | None | | project_id | ddb7c08ba73a48eea040270d13a7b0cf | | qos_policy_id | None | | revision_number | 0 | | router_id | None | | status | DOWN | | subnet_id | None | | tags | [] | | updated_at | 2022-04-12T05:00:19Z | +---------------------+--------------------------------------+ # 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 10.0.0.223
# verify settings to access to the floating IP root@dlp ~(keystone)# curl 10.0.0.223 Web Server on Instance01 root@dlp ~(keystone)# curl 10.0.0.223 Web Server on Instance02 root@dlp ~(keystone)# curl 10.0.0.223 Web Server on Instance01 root@dlp ~(keystone)# curl 10.0.0.223 Web Server on Instance02 |
| Sponsored Link |
|
|