ACK Serverless provides the NGINX Ingress controller, which is an optimized version of the community NGINX Ingress controller. This topic describes how to install the NGINX Ingress controller in an ACK Serverless cluster.
Procedure
Method 1: Install the NGINX Ingress Controller When You Create a Cluster
When you create an ACK Serverless cluster, select Nginx Ingress in the Ingress configuration section. For more information, see Quick Start for ACK Serverless.
The following are required to install the NGINX Ingress controller:
Two Elastic Container Instance (ECI) instances, each with 2 CPU cores and 4 GiB of memory, to deploy services.
One Server Load Balancer (SLB) instance. You can select an Internet-facing or internal-facing instance type based on your requirements.

Method 2: Install the NGINX Ingress Controller on the Component Management Page
Log on to the ACK console. In the left navigation pane, click Clusters.
On the Clusters page, find the cluster that you want to manage and click the name of the cluster or click Details in the Actions column. The details page of the cluster appears.
In the left-side navigation pane of the details page, click Add-ons.
On the Networking tab, in the Nginx Ingress Controller section, click Install.
In the Install Nginx Ingress Controller dialog box, click OK.
If Installed is displayed in the upper-right corner of the Nginx Ingress Controller section, the component has been successfully installed.