Set ebs volume size for basic example (#65)

Author: hoadinhmai

README.md

@@ -95,6 +95,7 @@ module "elasticsearch" {
   elasticsearch_version   = "6.5"
   instance_type           = "t2.small.elasticsearch"
   instance_count          = 4
+  ebs_volume_size         = 10
   iam_role_arns           = ["arn:aws:iam::XXXXXXXXX:role/ops", "arn:aws:iam::XXXXXXXXX:role/dev"]
   iam_actions             = ["es:ESHttpGet", "es:ESHttpPut", "es:ESHttpPost"]
   encrypt_at_rest_enabled = true

README.yaml

@@ -63,6 +63,7 @@ usage: |-
     elasticsearch_version   = "6.5"
     instance_type           = "t2.small.elasticsearch"
     instance_count          = 4
+    ebs_volume_size         = 10
     iam_role_arns           = ["arn:aws:iam::XXXXXXXXX:role/ops", "arn:aws:iam::XXXXXXXXX:role/dev"]
     iam_actions             = ["es:ESHttpGet", "es:ESHttpPut", "es:ESHttpPost"]
     encrypt_at_rest_enabled = true

examples/basic/main.tf

@@ -15,6 +15,7 @@ module "elasticsearch" {
   elasticsearch_version   = "6.5"
   instance_type           = "t2.small.elasticsearch"
   instance_count          = 4
+  ebs_volume_size         = 10
   iam_role_arns           = ["arn:aws:iam::XXXXXXXXX:role/ops", "arn:aws:iam::XXXXXXXXX:role/dev"]
   iam_actions             = ["es:ESHttpGet", "es:ESHttpPut", "es:ESHttpPost"]
   encrypt_at_rest_enabled = "true"