Merge pull request #79209 from brendan-daly-red-hat/OCPBUGS-31434

kcarmichael08 · web-flow · commit 2aa811bc321a · 2024-08-02T15:05:59.000-04:00
OCPBUGS-31434#adding IngressController update
diff --git a/installing/overview/installing-preparing.adoc b/installing/overview/installing-preparing.adoc
@@ -62,6 +62,7 @@ For installer-provisioned infrastructure installations, you can use an existing
 
 You can use the installer-provisioned infrastructure method to create appropriate machine instances on your hardware for xref:../../installing/installing_vsphere/ipi/installing-vsphere-installer-provisioned.adoc#installing-vsphere-installer-provisioned[vSphere], and xref:../../installing/installing_bare_metal_ipi/ipi-install-overview#ipi-install-overview[bare metal]. Additionally, for xref:../../installing/installing_vsphere/ipi/installing-vsphere-installer-provisioned-network-customizations.adoc#installing-vsphere-installer-provisioned-network-customizations[vSphere], you can also customize additional network parameters during installation.
 
+For some installer-provisioned infrastructure installations, for example on the {vmw-first} and bare metal platforms, the external traffic that reaches the ingress virtual IP (VIP) is not balanced between the default `IngressController` replicas. For {vmw-short}  and bare metal installer-provisioned infrastructure installations where exceeding the baseline `IngressController` router performance is expected, you must configure an external load balancer. Configuring an external load balancer achieves the performance of multiple `IngressController` replicas. For more information about the baseline `IngressController` performance, see xref:../../scalability_and_performance/optimization/routing-optimization.adoc#baseline-router-performance_routing-optimization[Baseline Ingress Controller (router) performance]. For more information about configuring an external load balancer, see xref:../../installing/installing_bare_metal_ipi/ipi-install-installation-workflow.adoc#nw-osp-configuring-external-load-balancer_ipi-install-installation-workflow[Configuring a user-managed load balancer].
 
 If you want to reuse extensive cloud infrastructure, you can complete a _user-provisioned infrastructure_ installation. With these installations, you manually deploy the machines that your cluster requires during the installation process. If you perform a user-provisioned infrastructure installation on xref:../../installing/installing_aws/upi/installing-aws-user-infra.adoc#installing-aws-user-infra[AWS], xref:../../installing/installing_azure/upi/installing-azure-user-infra.adoc#installing-azure-user-infra[Azure], xref:../../installing/installing_azure_stack_hub/installing-azure-stack-hub-user-infra.adoc#installing-azure-stack-hub-user-infra[Azure Stack Hub], you can use the provided templates to help you stand up all of the required components. You can also reuse a shared xref:../../installing/installing_gcp/installing-gcp-user-infra-vpc.adoc#installing-gcp-user-infra-vpc[VPC on GCP]. Otherwise, you can use the xref:../../installing/installing_platform_agnostic/installing-platform-agnostic.adoc#installing-platform-agnostic[provider-agnostic] installation method to deploy a cluster into other clouds.
 

Original file line number	Diff line number	Diff line change
`@@ -62,6 +62,7 @@ For installer-provisioned infrastructure installations, you can use an existing`
`62`	`62`
`63`	`63`	You can use the installer-provisioned infrastructure method to create appropriate machine instances on your hardware for xref:../../installing/installing_vsphere/ipi/installing-vsphere-installer-provisioned.adoc#installing-vsphere-installer-provisioned[vSphere], and xref:../../installing/installing_bare_metal_ipi/ipi-install-overview#ipi-install-overview[bare metal]. Additionally, for xref:../../installing/installing_vsphere/ipi/installing-vsphere-installer-provisioned-network-customizations.adoc#installing-vsphere-installer-provisioned-network-customizations[vSphere], you can also customize additional network parameters during installation.
`64`	`64`
	`65`	+For some installer-provisioned infrastructure installations, for example on the {vmw-first} and bare metal platforms, the external traffic that reaches the ingress virtual IP (VIP) is not balanced between the default `IngressController` replicas. For {vmw-short} and bare metal installer-provisioned infrastructure installations where exceeding the baseline `IngressController` router performance is expected, you must configure an external load balancer. Configuring an external load balancer achieves the performance of multiple `IngressController` replicas. For more information about the baseline `IngressController` performance, see xref:../../scalability_and_performance/optimization/routing-optimization.adoc#baseline-router-performance_routing-optimization[Baseline Ingress Controller (router) performance]. For more information about configuring an external load balancer, see xref:../../installing/installing_bare_metal_ipi/ipi-install-installation-workflow.adoc#nw-osp-configuring-external-load-balancer_ipi-install-installation-workflow[Configuring a user-managed load balancer].
`65`	`66`
`66`	`67`	If you want to reuse extensive cloud infrastructure, you can complete a _user-provisioned infrastructure_ installation. With these installations, you manually deploy the machines that your cluster requires during the installation process. If you perform a user-provisioned infrastructure installation on xref:../../installing/installing_aws/upi/installing-aws-user-infra.adoc#installing-aws-user-infra[AWS], xref:../../installing/installing_azure/upi/installing-azure-user-infra.adoc#installing-azure-user-infra[Azure], xref:../../installing/installing_azure_stack_hub/installing-azure-stack-hub-user-infra.adoc#installing-azure-stack-hub-user-infra[Azure Stack Hub], you can use the provided templates to help you stand up all of the required components. You can also reuse a shared xref:../../installing/installing_gcp/installing-gcp-user-infra-vpc.adoc#installing-gcp-user-infra-vpc[VPC on GCP]. Otherwise, you can use the xref:../../installing/installing_platform_agnostic/installing-platform-agnostic.adoc#installing-platform-agnostic[provider-agnostic] installation method to deploy a cluster into other clouds.
`67`	`68`