feat: Add interpreter option to wait_for_cluster_cmd (#795)

Co-authored-by: Vasilyev, Viacheslav <viacheslav.vasilyev@accenture.com>
Co-authored-by: Thierno IB. BARRY <ibrahima.br@gmail.com>

README.md

@@ -178,6 +178,7 @@ MIT Licensed. See [LICENSE](https://github.com/terraform-aws-modules/terraform-a
 | tags | A map of tags to add to all resources. | `map(string)` | `{}` | no |
 | vpc\_id | VPC where the cluster and workers will be deployed. | `string` | n/a | yes |
 | wait\_for\_cluster\_cmd | Custom local-exec command to execute for determining if the eks cluster is healthy. Cluster endpoint will be available as an environment variable called ENDPOINT | `string` | `"for i in `seq 1 60`; do wget --no-check-certificate -O - -q $ENDPOINT/healthz \u003e/dev/null \u0026\u0026 exit 0 \|\| true; sleep 5; done; echo TIMEOUT \u0026\u0026 exit 1"` | no |
+| wait\_for\_cluster\_interpreter | Custom local-exec command line interpreter for the command to determining if the eks cluster is healthy. | `list(string)` | <pre>[<br>  "/bin/sh",<br>  "-c"<br>]</pre> | no |
 | worker\_additional\_security\_group\_ids | A list of additional security group ids to attach to worker instances | `list(string)` | `[]` | no |
 | worker\_ami\_name\_filter | Name filter for AWS EKS worker AMI. If not provided, the latest official AMI for the specified 'cluster\_version' is used. | `string` | `""` | no |
 | worker\_ami\_name\_filter\_windows | Name filter for AWS EKS Windows worker AMI. If not provided, the latest official AMI for the specified 'cluster\_version' is used. | `string` | `""` | no |

cluster.tf

@@ -65,7 +65,8 @@ resource "null_resource" "wait_for_cluster" {
   ]
 
   provisioner "local-exec" {
-    command = var.wait_for_cluster_cmd
+    command     = var.wait_for_cluster_cmd
+    interpreter = var.wait_for_cluster_interpreter
     environment = {
       ENDPOINT = aws_eks_cluster.this[0].endpoint
     }

variables.tf

@@ -204,6 +204,12 @@ variable "wait_for_cluster_cmd" {
   default     = "for i in `seq 1 60`; do wget --no-check-certificate -O - -q $ENDPOINT/healthz >/dev/null && exit 0 || true; sleep 5; done; echo TIMEOUT && exit 1"
 }
 
+variable "wait_for_cluster_interpreter" {
+  description = "Custom local-exec command line interpreter for the command to determining if the eks cluster is healthy."
+  type        = list(string)
+  default     = ["/bin/sh", "-c"]
+}
+
 variable "cluster_create_security_group" {
   description = "Whether to create a security group for the cluster or attach the cluster to `cluster_security_group_id`."
   type        = bool