{
  "variables": {
    "aws_access_key": "{{env `AWS_ACCESS_KEY_ID`}}",
    "aws_secret_key": "{{env `AWS_SECRET_ACCESS_KEY`}}",
    "region": "us-east-2"
  },
  "builders": [
    {
      "type": "amazon-ebs",
      "access_key": "{{user `aws_access_key`}}",
      "ami_name": "go-linux-arm64-{{timestamp}}",
      "ami_description": "Image for linux-arm64 Go builder",
      "instance_type": "a1.medium",
      "region": "{{user `region`}}",
      "secret_key": "{{user `aws_secret_key`}}",
      "source_ami_filter": {
        "filters": {
          "architecture": "arm64",
          "virtualization-type": "hvm",
          "name": "debian-10-arm64-*",
          "root-device-type": "ebs"
        },
        "owners": ["136693071363"],
        "most_recent": true
      },
      "decode_authorization_messages": true,
      "ssh_username": "admin",
      "tags": {
        "Name": "Debian",
        "Created": "{{isotime \"2006-01-02\"}}",
        "OS": "Debian 10 Buster",
        "Release": "Latest",
        "Base_AMI_Name": "{{ .SourceAMIName }}",
        "Extra": "{{ .SourceAMITags.TagName }}",
        "Description": "{{user `description`}}"
      },
      "launch_block_device_mappings": [
        {
          "device_name": "/dev/xvda",
          "volume_size": 10,
          "volume_type": "gp2",
          "delete_on_termination": true
        }
      ]
    }
  ],
  "provisioners": [
    {
      "type": "file",
      "source": "./rundockerbuildlet.service",
      "destination": "/tmp/rundockerbuildlet.service"
    },
    {
      "type": "shell",
      "script": "./prepare_image.sh"
    }
  ]
}