packer-centos-docker.json

{
    "variables": {
        "aws_access_key": "",
        "aws_secret_key": "",
        "region": "",
        "source_ami": "ami-*****",
        "instance_type": "t1.micro",
        "ssh_username": "root"
    },

    "builders": [{
        "type": "amazon-ebs",
        "access_key": "{{user `aws_access_key`}}",
        "secret_key": "{{user `aws_secret_key`}}",
        "region": "{{user `region`}}",
        "source_ami": "{{user `source_ami`}}",
        "instance_type": "{{user `instance_type`}}",
        "ssh_username": "{{user `ssh_username`}}",
        "ssh_port": 22,
        "ssh_timeout": "10000s",
        "ami_name": "centos-docker-{{timestamp}}"
    }],

    "provisioners": [{
        "type": "shell",
        "scripts": [
            "sh/addrepo.sh",
            "sh/yum-utils.sh",
            "sh/makecache.sh",
            "sh/update.sh",
            "sh/docker-ce.sh",
            "sh/enablesystemdservice.sh",
            "sh/startsystemdservice.sh"
        ]
    }]
}