diff --git a/.gitignore b/.gitignore
index 8c17ca4..a6ae4a9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,6 @@
*.tfstate.backup
.terraform
.idea
-*.iml
\ No newline at end of file
+*.iml
+.terraform.tfstate.lock.info
+
diff --git a/README.md b/README.md
index 688af29..684df83 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
Terraform AWS Elasticsearch
-
+
Terraform module to create an Elasticsearch resource on AWS.
@@ -38,7 +38,7 @@
-We eat, drink, sleep and most importantly love **DevOps**. We are working towards strategies for standardizing architecture while ensuring security for the infrastructure. We are strong believer of the philosophy Bigger problems are always solved by breaking them into smaller manageable problems. Resonating with microservices architecture, it is considered best-practice to run database, cluster, storage in smaller connected yet manageable pieces within the infrastructure.
+We eat, drink, sleep and most importantly love **DevOps**. We are working towards strategies for standardizing architecture while ensuring security for the infrastructure. We are strong believer of the philosophy Bigger problems are always solved by breaking them into smaller manageable problems. Resonating with microservices architecture, it is considered best-practice to run database, cluster, storage in smaller connected yet manageable pieces within the infrastructure.
This module is basically combination of [Terraform open source](https://www.terraform.io/) and includes automatation tests and examples. It also helps to create and improve your infrastructure with minimalistic code instead of maintaining the whole infrastructure code yourself.
@@ -49,9 +49,9 @@ We have [*fifty plus terraform modules*][terraform_modules]. A few of them are c
## Prerequisites
-This module has a few dependencies:
+This module has a few dependencies:
-- [Terraform 0.12](https://learn.hashicorp.com/terraform/getting-started/install.html)
+- [Terraform 0.13](https://learn.hashicorp.com/terraform/getting-started/install.html)
- [Go](https://golang.org/doc/install)
- [github.com/stretchr/testify/assert](https://github.com/stretchr/testify)
- [github.com/gruntwork-io/terratest/modules/terraform](https://github.com/gruntwork-io/terratest)
@@ -139,52 +139,54 @@ Note: There are some type of instances which not support encryption and EBS opti
## Inputs
| Name | Description | Type | Default | Required |
-|------|-------------|:----:|:-----:|:-----:|
-| advanced\_options | Key-value string pairs to specify advanced configuration options. | map(string) | `