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76 lines
2.2 KiB
Plaintext
76 lines
2.2 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * networking/load-balancing-openstack.adoc
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:_mod-docs-content-type: PROCEDURE
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[id="installation-osp-api-scaling_{context}"]
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= Scaling clusters by using Octavia
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If you want to use multiple API load balancers, create an Octavia load balancer and then configure your cluster to use it.
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.Prerequisites
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* Octavia is available on your {rh-openstack-first} deployment.
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.Procedure
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. From a command line, create an Octavia load balancer that uses the Amphora driver:
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+
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[source,terminal]
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----
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$ openstack loadbalancer create --name API_OCP_CLUSTER --vip-subnet-id <id_of_worker_vms_subnet>
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----
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You can use a name of your choice instead of `API_OCP_CLUSTER`.
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. After the load balancer becomes active, create listeners:
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[source,terminal]
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----
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$ openstack loadbalancer listener create --name API_OCP_CLUSTER_6443 --protocol HTTPS--protocol-port 6443 API_OCP_CLUSTER
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----
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[NOTE]
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====
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To view the status of the load balancer, enter `openstack loadbalancer list`.
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====
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. Create a pool that uses the round robin algorithm and has session persistence enabled:
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[source,terminal]
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----
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$ openstack loadbalancer pool create --name API_OCP_CLUSTER_pool_6443 --lb-algorithm ROUND_ROBIN --session-persistence type=<source_IP_address> --listener API_OCP_CLUSTER_6443 --protocol HTTPS
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----
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. To ensure that control plane machines are available, create a health monitor:
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[source,terminal]
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----
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$ openstack loadbalancer healthmonitor create --delay 5 --max-retries 4 --timeout 10 --type TCP API_OCP_CLUSTER_pool_6443
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----
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. Add the control plane machines as members of the load balancer pool:
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[source,terminal]
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----
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$ for SERVER in $(MASTER-0-IP MASTER-1-IP MASTER-2-IP)
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do
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openstack loadbalancer member create --address $SERVER --protocol-port 6443 API_OCP_CLUSTER_pool_6443
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done
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----
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. Optional: To reuse the cluster API floating IP address, unset it:
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[source,terminal]
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----
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$ openstack floating ip unset $API_FIP
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----
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. Add either the unset `API_FIP` or a new address to the created load balancer VIP:
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[source,terminal]
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----
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$ openstack floating ip set --port $(openstack loadbalancer show -c <vip_port_id> -f value API_OCP_CLUSTER) $API_FIP
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----
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Your cluster now uses Octavia for load balancing. |