AWS Cluster Service Discovery

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In this example, we are connecting to a service running on a cluster using its AWS Cloud Map service host name. This is useful for service discovery.

We are deploying a service to a cluster in a VPC. And we can access it within the VPC using the service’s cloud map hostname.

lambda.ts

const response = await fetch(`http://${Resource.MyService.service}`);

Here we are accessing it through a Lambda function that’s linked to the service and is deployed to the same VPC.

sst.config.ts

const vpc = new sst.aws.Vpc("MyVpc", { nat: "ec2" });

const cluster = new sst.aws.Cluster("MyCluster", { vpc });
const service = new sst.aws.Service("MyService", { cluster });

new sst.aws.Function("MyFunction", {
  vpc,
  url: true,
  link: [service],
  handler: "lambda.handler",
});

View the full example.