{
  "variables": {
    "client_id": "{{env `ARM_CLIENT_ID`}}",
    "client_secret": "{{env `ARM_CLIENT_SECRET`}}",
    "resource_group": "{{env `ARM_RESOURCE_GROUP`}}",
    "storage_account": "{{env `ARM_STORAGE_ACCOUNT`}}",
    "subscription_id": "{{env `ARM_SUBSCRIPTION_ID`}}",
    "tenant_id": "{{env `ARM_TENANT_ID`}}",
    "ssh_user": "centos",
    "ssh_pass": null
  },
  "builders": [{
    "type": "azure-arm",

    "client_id": "{{user `client_id`}}",
    "client_secret": "{{user `client_secret`}}",
    "resource_group_name": "{{user `resource_group`}}",
    "storage_account": "{{user `storage_account`}}",
    "subscription_id": "{{user `subscription_id`}}",
    "tenant_id": "{{user `tenant_id`}}",

    "capture_container_name": "images",
    "capture_name_prefix": "packer",

    "ssh_username": "{{user `ssh_user`}}",
    "ssh_password": "{{user `ssh_pass`}}",

    "os_type": "Linux",
    "image_publisher": "RedHat",
    "image_offer": "RHEL",
    "image_sku": "7.3",
    "image_version": "latest",
    "ssh_pty": "true",

    "location": "South Central US",
    "vm_size": "Standard_DS2_v2"
  }],
  "provisioners": [{
    "execute_command": "echo '{{user `ssh_pass`}}' | {{ .Vars }} sudo -S -E sh '{{ .Path }}'",
    "inline": [
      "yum update -y",
      "/usr/sbin/waagent -force -deprovision+user && export HISTSIZE=0 && sync"
    ],
    "inline_shebang": "/bin/sh -x",
    "type": "shell",
    "skip_clean": true
  }]
}