switch to terraform id extractor for cluster references

So that the refs don't resolve until after the cluster exists

Signed-off-by: Matt Bush <[email protected]>

config/eks/config.go

@@ -113,21 +113,27 @@ func Configure(p *config.Provider) {
 		r.References = config.References{
 			"cluster_name": {
 				TerraformName: "aws_eks_cluster",
+				// Use the terraform id instead of the external name because the external name is set before the cluster
+				// has been created.
+				Extractor: common.PathTerraformIDExtractor,
 			},
 			// Principal Arn can refer to either the ARN of an IAM user or an IAM role, with a strong best-practice
 			// recommendation to always use roles. However, the eks Access Policy resource won't do anything unless
 			// the principal arn matches a principal with an eks Access Entry defined on the same cluster. By retrieving
 			// the principal arn from the Access Entry, we provide an easy means of ordered creation.
 			"principal_arn": {
 				TerraformName: "aws_eks_access_entry",
-				Extractor:     `github.com/crossplane/upjet/pkg/resource.ExtractParamPath("principal_arn",false)`,
+				Extractor:     `github.com/crossplane/upjet/pkg/resource.ExtractParamPath("principal_arn",true)`,
 			},
 		}
 	})
 	p.AddResourceConfigurator("aws_eks_access_entry", func(r *config.Resource) {
 		r.References = config.References{
 			"cluster_name": {
 				TerraformName: "aws_eks_cluster",
+				// Use the terraform id instead of the external name because the external name is set before the cluster
+				// has been created.
+				Extractor: common.PathTerraformIDExtractor,
 			},
 			"principal_arn": {
 				TerraformName:     "aws_iam_role",