GetCluster

using Pulumi;
using Aws = Pulumi.Aws;

class MyStack : Stack
{
    public MyStack()
    {
        var clusterName = Output.Create(Aws.Rds.GetCluster.InvokeAsync(new Aws.Rds.GetClusterArgs
        {
            ClusterIdentifier = "clusterName",
        }));
    }

}

package main

import (
    "github.com/pulumi/pulumi-aws/sdk/v2/go/aws/rds"
    "github.com/pulumi/pulumi/sdk/v2/go/pulumi"
)

func main() {
    pulumi.Run(func(ctx *pulumi.Context) error {
        _, err := rds.LookupCluster(ctx, &rds.LookupClusterArgs{
            ClusterIdentifier: "clusterName",
        }, nil)
        if err != nil {
            return err
        }
        return nil
    })
}

import pulumi
import pulumi_aws as aws

cluster_name = aws.rds.get_cluster(cluster_identifier="clusterName")

import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

const clusterName = pulumi.output(aws.rds.getCluster({
    clusterIdentifier: "clusterName",
}, { async: true }));