feat!: Add support for Outposts, remove node security group, add support for addon preserve and most_recent configurations (#2250)

Co-authored-by: Anton Babenko <anton@antonbabenko.com>
Resolves undefined

outputs.tf

@@ -4,52 +4,52 @@
 
 output "cluster_arn" {
   description = "The Amazon Resource Name (ARN) of the cluster"
-  value       = try(aws_eks_cluster.this[0].arn, "")
+  value       = try(aws_eks_cluster.this[0].arn, null)
 }
 
 output "cluster_certificate_authority_data" {
   description = "Base64 encoded certificate data required to communicate with the cluster"
-  value       = try(aws_eks_cluster.this[0].certificate_authority[0].data, "")
+  value       = try(aws_eks_cluster.this[0].certificate_authority[0].data, null)
 }
 
 output "cluster_endpoint" {
   description = "Endpoint for your Kubernetes API server"
-  value       = try(aws_eks_cluster.this[0].endpoint, "")
-}
-
-output "cluster_name" {
-  description = "The name of the EKS cluster. Will block on cluster creation until the cluster is really ready"
-  value       = try(aws_eks_cluster.this[0].name, "")
+  value       = try(aws_eks_cluster.this[0].endpoint, null)
 }
 
 output "cluster_id" {
-  description = "The id of the EKS cluster. Will block on cluster creation until the cluster is really ready"
-  value       = try(aws_eks_cluster.this[0].id, "")
+  description = "The ID of the EKS cluster. Note: currently a value is returned only for local EKS clusters created on Outposts"
+  value       = try(aws_eks_cluster.this[0].cluster_id, null)
+}
+
+output "cluster_name" {
+  description = "The name of the EKS cluster"
+  value       = try(aws_eks_cluster.this[0].name, null)
 }
 
 output "cluster_oidc_issuer_url" {
   description = "The URL on the EKS cluster for the OpenID Connect identity provider"
-  value       = try(aws_eks_cluster.this[0].identity[0].oidc[0].issuer, "")
+  value       = try(aws_eks_cluster.this[0].identity[0].oidc[0].issuer, null)
 }
 
 output "cluster_version" {
   description = "The Kubernetes version for the cluster"
-  value       = try(aws_eks_cluster.this[0].version, "")
+  value       = try(aws_eks_cluster.this[0].version, null)
 }
 
 output "cluster_platform_version" {
   description = "Platform version for the cluster"
-  value       = try(aws_eks_cluster.this[0].platform_version, "")
+  value       = try(aws_eks_cluster.this[0].platform_version, null)
 }
 
 output "cluster_status" {
   description = "Status of the EKS cluster. One of `CREATING`, `ACTIVE`, `DELETING`, `FAILED`"
-  value       = try(aws_eks_cluster.this[0].status, "")
+  value       = try(aws_eks_cluster.this[0].status, null)
 }
 
 output "cluster_primary_security_group_id" {
   description = "Cluster security group that was created by Amazon EKS for the cluster. Managed node groups use this security group for control-plane-to-data-plane communication. Referred to as 'Cluster security group' in the EKS console"
-  value       = try(aws_eks_cluster.this[0].vpc_config[0].cluster_security_group_id, "")
+  value       = try(aws_eks_cluster.this[0].vpc_config[0].cluster_security_group_id, null)
 }
 
 ################################################################################
@@ -77,12 +77,12 @@ output "kms_key_policy" {
 
 output "cluster_security_group_arn" {
   description = "Amazon Resource Name (ARN) of the cluster security group"
-  value       = try(aws_security_group.cluster[0].arn, "")
+  value       = try(aws_security_group.cluster[0].arn, null)
 }
 
 output "cluster_security_group_id" {
   description = "ID of the cluster security group"
-  value       = try(aws_security_group.cluster[0].id, "")
+  value       = try(aws_security_group.cluster[0].id, null)
 }
 
 ################################################################################
@@ -91,12 +91,12 @@ output "cluster_security_group_id" {
 
 output "node_security_group_arn" {
   description = "Amazon Resource Name (ARN) of the node shared security group"
-  value       = try(aws_security_group.node[0].arn, "")
+  value       = try(aws_security_group.node[0].arn, null)
 }
 
 output "node_security_group_id" {
   description = "ID of the node shared security group"
-  value       = try(aws_security_group.node[0].id, "")
+  value       = try(aws_security_group.node[0].id, null)
 }
 
 ################################################################################
@@ -105,17 +105,17 @@ output "node_security_group_id" {
 
 output "oidc_provider" {
   description = "The OpenID Connect identity provider (issuer URL without leading `https://`)"
-  value       = try(replace(aws_eks_cluster.this[0].identity[0].oidc[0].issuer, "https://", ""), "")
+  value       = try(replace(aws_eks_cluster.this[0].identity[0].oidc[0].issuer, "https://", null), null)
 }
 
 output "oidc_provider_arn" {
   description = "The ARN of the OIDC Provider if `enable_irsa = true`"
-  value       = try(aws_iam_openid_connect_provider.oidc_provider[0].arn, "")
+  value       = try(aws_iam_openid_connect_provider.oidc_provider[0].arn, null)
 }
 
 output "cluster_tls_certificate_sha1_fingerprint" {
   description = "The SHA1 fingerprint of the public key of the cluster's certificate"
-  value       = try(data.tls_certificate.this[0].certificates[0].sha1_fingerprint, "")
+  value       = try(data.tls_certificate.this[0].certificates[0].sha1_fingerprint, null)
 }
 
 ################################################################################
@@ -124,17 +124,17 @@ output "cluster_tls_certificate_sha1_fingerprint" {
 
 output "cluster_iam_role_name" {
   description = "IAM role name of the EKS cluster"
-  value       = try(aws_iam_role.this[0].name, "")
+  value       = try(aws_iam_role.this[0].name, null)
 }
 
 output "cluster_iam_role_arn" {
   description = "IAM role ARN of the EKS cluster"
-  value       = try(aws_iam_role.this[0].arn, "")
+  value       = try(aws_iam_role.this[0].arn, null)
 }
 
 output "cluster_iam_role_unique_id" {
   description = "Stable and unique string identifying the IAM role"
-  value       = try(aws_iam_role.this[0].unique_id, "")
+  value       = try(aws_iam_role.this[0].unique_id, null)
 }
 
 ################################################################################
@@ -161,12 +161,12 @@ output "cluster_identity_providers" {
 
 output "cloudwatch_log_group_name" {
   description = "Name of cloudwatch log group created"
-  value       = try(aws_cloudwatch_log_group.this[0].name, "")
+  value       = try(aws_cloudwatch_log_group.this[0].name, null)
 }
 
 output "cloudwatch_log_group_arn" {
   description = "Arn of cloudwatch log group created"
-  value       = try(aws_cloudwatch_log_group.this[0].arn, "")
+  value       = try(aws_cloudwatch_log_group.this[0].arn, null)
 }
 
 ################################################################################