Packer Environment Variable

Note:

 1011  export AWS_ACCESS=AKGQ                         do this on console not on editor

 1012  export AWS_SECRET=KfVkt1aurid

 1013  echo $AWS_ACCESS

 1014  AKVUGQ

 vim moon.json

{

    "variables": {

      "aws_access_key": "{{env `AWS_ACCESS`}}",

      "aws_secret_key": "{{env `AWS_SECRET`}}"

    },

       "builders": [

           {

           "type": "amazon-ebs",

           "region": "us-east-1",

           "access_key": "{{user `aws_access_key`}}",

           "secret_key": "{{user `aws_secret_key`}}",

           "instance_type": "t2.micro",

           "source_ami": "ami-02e136e904f3da870",

           "ssh_username": "ec2-user",

           "ami_name": "moon-amiii"

           }

       ]

}