OpenStack Zed : How to use Octavia2023/06/30 |
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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 | | Neutron L2/L3 Agent | | Libvirt |
| Memcached Nginx | | Neutron Metadata | | Nova Compute |
| Keystone httpd | | Open vSwitch | | Neutron L2 Agent |
| Glance Nova API | | iSCSI Target | | Open vSwitch |
| Neutron Server | | Cinder Volume | | |
| Neutron Metadata | | Octavia Services | | |
| Cinder API | | Nginx | | |
+-----------------------+ +-----------------------+ +-----------------------+
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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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debian@dlp ~(keystone)$ openstack subnet list +--------------------------------------+----------------+--------------------------------------+------------------+ | ID | Name | Network | Subnet | +--------------------------------------+----------------+--------------------------------------+------------------+ | b3234f3f-b3e3-41d2-b3a4-ca3d4ec55d24 | private-subnet | ae5fdb1f-efb9-412b-9053-b81106c90336 | 192.168.100.0/24 | +--------------------------------------+----------------+--------------------------------------+------------------+debian@dlp ~(keystone)$ openstack loadbalancer create --name lb01 --vip-subnet-id private-subnet +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | admin_state_up | True | | availability_zone | None | | created_at | 2023-06-30T01:34:10 | | description | | | flavor_id | None | | id | 599003a5-35a5-4d1e-8f60-250121beb7c0 | | listeners | | | name | lb01 | | operating_status | OFFLINE | | pools | | | project_id | 1c2f5dc8c4f9494fbaaa4217c8e3585a | | provider | amphora | | provisioning_status | PENDING_CREATE | | updated_at | None | | vip_address | 192.168.100.171 | | vip_network_id | ae5fdb1f-efb9-412b-9053-b81106c90336 | | vip_port_id | 5a74fec6-7455-4dd5-baca-3cd13b6aa80f | | vip_qos_policy_id | None | | vip_subnet_id | b3234f3f-b3e3-41d2-b3a4-ca3d4ec55d24 | | tags | | | additional_vips | [] | +---------------------+--------------------------------------+ # after a few minutes, status turns to [ACTIVE] if instance successfully created debian@dlp ~(keystone)$ openstack loadbalancer list +--------------------------------------+------+----------------------------------+-----------------+---------------------+------------------+----------+ | id | name | project_id | vip_address | provisioning_status | operating_status | provider | +--------------------------------------+------+----------------------------------+-----------------+---------------------+------------------+----------+ | 599003a5-35a5-4d1e-8f60-250121beb7c0 | lb01 | 1c2f5dc8c4f9494fbaaa4217c8e3585a | 192.168.100.171 | 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 debian@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 | 2023-06-30T01:35:43 | | default_pool_id | None | | default_tls_container_ref | None | | description | | | id | 8651a761-d663-488b-a5f0-4e69ff783755 | | insert_headers | None | | l7policies | | | loadbalancers | 599003a5-35a5-4d1e-8f60-250121beb7c0 | | name | listener01 | | operating_status | OFFLINE | | project_id | 1c2f5dc8c4f9494fbaaa4217c8e3585a | | 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 debian@dlp ~(keystone)$ openstack loadbalancer pool create --name pool01 --lb-algorithm ROUND_ROBIN --listener listener01 --protocol TCP +----------------------+--------------------------------------+ | Field | Value | +----------------------+--------------------------------------+ | admin_state_up | True | | created_at | 2023-06-30T01:36:07 | | description | | | healthmonitor_id | | | id | 7ddd7f61-92e4-451b-b7c1-6ea79800b743 | | lb_algorithm | ROUND_ROBIN | | listeners | 8651a761-d663-488b-a5f0-4e69ff783755 | | loadbalancers | 599003a5-35a5-4d1e-8f60-250121beb7c0 | | members | | | name | pool01 | | operating_status | OFFLINE | | project_id | 1c2f5dc8c4f9494fbaaa4217c8e3585a | | 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 debian@dlp ~(keystone)$ openstack server list +--------------------------------------+-----------+---------+------------------------------------+----------+-----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+-----------+---------+------------------------------------+----------+-----------+ | e7a9befb-e6ed-4523-9014-b0ccca522d05 | Web02 | ACTIVE | private=192.168.100.196 | Debian12 | m1.medium | | 2beaca03-d1a7-4317-9258-fe4acc401ab7 | Web01 | ACTIVE | private=192.168.100.18 | Debian12 | m1.medium | | c3a4a792-a7ac-41bd-8c93-7fd162016f22 | Debian-12 | SHUTOFF | private=10.0.0.241, 192.168.100.66 | Debian12 | m1.medium | +--------------------------------------+-----------+---------+------------------------------------+----------+-----------+ # add web server instances to the pool member debian@dlp ~(keystone)$ openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.196 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.196 | | admin_state_up | True | | created_at | 2023-06-30T01:39:13 | | id | 189ea6ca-ee34-469d-b33c-f56b306be9dd | | name | | | operating_status | NO_MONITOR | | project_id | 1c2f5dc8c4f9494fbaaa4217c8e3585a | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | b3234f3f-b3e3-41d2-b3a4-ca3d4ec55d24 | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | | tags | | +---------------------+--------------------------------------+debian@dlp ~(keystone)$ openstack loadbalancer member create --subnet-id private-subnet --address 192.168.100.18 --protocol-port 80 pool01 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | address | 192.168.100.18 | | admin_state_up | True | | created_at | 2023-06-30T01:39:32 | | id | 102ef5c8-b30f-47ee-9578-96eb6bea2890 | | name | | | operating_status | NO_MONITOR | | project_id | 1c2f5dc8c4f9494fbaaa4217c8e3585a | | protocol_port | 80 | | provisioning_status | PENDING_CREATE | | subnet_id | b3234f3f-b3e3-41d2-b3a4-ca3d4ec55d24 | | updated_at | None | | weight | 1 | | monitor_port | None | | monitor_address | None | | backup | False | | tags | | +---------------------+--------------------------------------+debian@dlp ~(keystone)$ openstack loadbalancer member list pool01 +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | id | name | project_id | provisioning_status | address | protocol_port | operating_status | weight | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ | 189ea6ca-ee34-469d-b33c-f56b306be9dd | | 1c2f5dc8c4f9494fbaaa4217c8e3585a | ACTIVE | 192.168.100.196 | 80 | NO_MONITOR | 1 | | 102ef5c8-b30f-47ee-9578-96eb6bea2890 | | 1c2f5dc8c4f9494fbaaa4217c8e3585a | ACTIVE | 192.168.100.18 | 80 | NO_MONITOR | 1 | +--------------------------------------+------+----------------------------------+---------------------+-----------------+---------------+------------------+--------+ # create a floating IP on public network debian@dlp ~(keystone)$ openstack floating ip create public +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2023-06-30T01:44:07Z | | description | | | dns_domain | None | | dns_name | None | | fixed_ip_address | None | | floating_ip_address | 10.0.0.254 | | floating_network_id | b9b8536b-0696-4a5b-af05-602587435c0a | | id | b9a07664-3dc6-473b-9f87-f17ea6f0d03a | | name | 10.0.0.254 | | port_details | None | | port_id | None | | project_id | 1c2f5dc8c4f9494fbaaa4217c8e3585a | | qos_policy_id | None | | revision_number | 0 | | router_id | None | | status | DOWN | | subnet_id | None | | tags | [] | | updated_at | 2023-06-30T01:44:07Z | +---------------------+--------------------------------------+ # associate floating IP with VIP of loadbalancer instace debian@dlp ~(keystone)$ VIPPORT=$(openstack loadbalancer show lb01 | grep vip_port_id | awk {'print $4'}) debian@dlp ~(keystone)$ openstack floating ip set --port $VIPPORT 10.0.0.254
# verify settings to access to the floating IP debian@dlp ~(keystone)$ curl 10.0.0.254 Web Server on Instance01 debian@dlp ~(keystone)$ curl 10.0.0.254 Web Server on Instance02 debian@dlp ~(keystone)$ curl 10.0.0.254 Web Server on Instance01 debian@dlp ~(keystone)$ curl 10.0.0.254 Web Server on Instance02 |
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