fix(elasticsearch): fix #143 bug to allow the deployment with 0 master nodes (#145)

* fix(elasticsearch): fix #143 bug to allow the deployment with 0 master nodes

* Auto Format

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Co-authored-by: cloudpossebot <11232728+cloudpossebot@users.noreply.github.com>
Co-authored-by: Igor Rodionov <goruha@gmail.com>

Author: 3 people

main.tf

@@ -145,8 +145,8 @@ resource "aws_elasticsearch_domain" "default" {
     instance_count           = var.instance_count
     instance_type            = var.instance_type
     dedicated_master_enabled = var.dedicated_master_enabled
-    dedicated_master_count   = var.dedicated_master_count
-    dedicated_master_type    = var.dedicated_master_type
+    dedicated_master_count   = var.dedicated_master_enabled ? var.dedicated_master_count : null
+    dedicated_master_type    = var.dedicated_master_enabled ? var.dedicated_master_type : null
     zone_awareness_enabled   = var.zone_awareness_enabled
     warm_enabled             = var.warm_enabled
     warm_count               = var.warm_enabled ? var.warm_count : null