Getting Started with Elastic Load Balancing
You do not install your ACM Certificate directly on the Amazon EC2 instances that contain your website or your application. Instead, you associate the ACM Certificate with an AWS service, such as Elastic Load Balancing. Elastic Load Balancing improves the availability of your website or application by automatically distributing incoming traffic across your Amazon EC2 instances. The load balancer serves as a single point of contact for clients. This is shown by the following illustration.
You must perform the following steps to use ACM with a load balancer.
Install a website or application on one or more Amazon EC2 instances.
Create an Elastic Load Balancing load balancer to route client traffic to the Amazon EC2 instances.
Use the Elastic Load Balancing console, API, or AWS CLI to provision the ACM Certificate on the load balancer.
Clients access the website through the load balancer.
The load balancer distributes client traffic to the Amazon EC2 instances.
For more information about configuring your load balancer to use a certificate provided by ACM (step 4 in the preceding list), see one of the following topics:
Create an HTTPS Listener for Your Application Load Balancer in the Application Load Balancer Guide
HTTPS Listeners for Your Classic Load Balancer in the Classic Load Balancer Guide