implemented EKS infra provisioning with CFN

Signed-off-by: Sam Alba <sam.alba@gmail.com>

examples/aws-eks/main.cue

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"dagger.io/aws"
+)
+
+// Fill using:
+//          --input-string awsConfig.accessKey=XXX
+//          --input-string awsConfig.secretKey=XXX
+awsConfig: aws.#Config & {
+	region: *"us-east-2" | string
+}
+
+// Auto-provision an EKS cluster:
+// - VPC, Nat Gateways, Subnets, Security Group
+// - EKS Cluster
+// - Instance Node Group: auto-scaling-group, ec2 instances, etc...
+// base config can be changed (number of EC2 instances, types, etc...)
+infra: #Infrastructure & {
+	"awsConfig": awsConfig
+}