{
  "variables": {
    "ucloud_public_key": "{{env `UCLOUD_PUBLIC_KEY`}}",
    "ucloud_private_key": "{{env `UCLOUD_PRIVATE_KEY`}}",
    "ucloud_project_id": "{{env `UCLOUD_PROJECT_ID`}}"
  },

  "builders": [{
    "type": "ucloud-uhost",
    "public_key": "{{user `ucloud_public_key`}}",
    "private_key": "{{user `ucloud_private_key`}}",
    "project_id": "{{user `ucloud_project_id`}}",
    "region": "cn-bj2",
    "availability_zone": "cn-bj2-02",
    "instance_type": "n-basic-2",
    "source_image_id": "uimage-f1chxn",
    "ssh_username":"root",
    "image_name": "packer-test-basic-bj",
    "image_copy_to_mappings": [{
      "project_id": "{{user `ucloud_project_id`}}",
      "region": "cn-sh2",
      "description": "test",
      "name": "packer-test-basic-sh"
    }]
  }],
  "provisioners": [{
    "type": "shell",
    "inline": [
      "yum install -y nginx"
    ]
  }]
}