Add default AMI ID

Author: rf-sys

README.md

@@ -22,7 +22,7 @@ Variables that are used by this module:
 1. aws_access_key - AWS account public key
 2. aws_secret_key - AWS account private key
 3. aws_region - AWS region
-4. aws_instance_ami - AMI ID (example: ami-194cdc76)
+4. aws_instance_ami - CentOS AMI ID (default: ami-337be65c). Last updated: 03.04.2018
 5. aws_instance_type - EC2 instance Type (example: t2.micro)
 6. aws_instance_name - EC2 instance name
 7. aws_security_group_name - name of new security group

variables.tf

@@ -6,7 +6,10 @@ variable "aws_region" {}
 
 # instance
 
-variable "aws_instance_ami" {}
+variable "aws_instance_ami" {
+  # Default CentOS AMI. Last check: 03.04.2018
+  default = "ami-337be65c"
+}
 variable "aws_instance_type" {}
 variable "aws_instance_name" {}