ami.json

{
    "variables": {
        "aws_access_key": "",
        "aws_secret_key": "",
        "aws_region": "",
        "subnet_id": "",
        "source_ami": ""
    },
    "builders": [{
        "type": "amazon-ebs",        
        "access_key": "{{user `aws_access_key`}}",
        "secret_key": "{{user `aws_secret_key`}}",
        "ami_name": "csye6225_{{timestamp}}",
        "subnet_id": "{{user `subnet_id`}}",
        "region": "{{user `aws_region`}}",
        "source_ami": "{{user `source_ami`}}",
        "ssh_username": "ec2-user",
        "instance_type": "t2.micro",
        "ami_description": "Linux AMI for CSYE6225",
        "disable_stop_instance": "false",
        "ssh_timeout": "20m",
        "communicator": "ssh",            
        "launch_block_device_mappings": [
               {
                   "device_name": "/dev/xvda",
                   "volume_size": 8,
                   "volume_type": "gp2",
                   "delete_on_termination": true
               }
        ],
        "run_tags": {
            "Name": "Packer Builder",
            "OsType": "Linux",
            "CreationDate": "{{timestamp}}",
            "Owner": "bhan"
        },
        "tags": {
            "CreationDate": "{{timestamp}}",
            "OsType": "Linux",
            "Owner": "bhan",
            "Name": "csye6225_{{timestamp}}"
        }
      }],
      "provisioners": [{
        "type": "shell",
        "inline": [
            "sudo yum update -y",
            "sudo yum install  java-1.8.0-openjdk -y",
            "sudo yum install wget"
        ]
      }]
}