{
  "variables": {
    "ucloud_public_key": "{{env `UCLOUD_PUBLIC_KEY`}}",
    "ucloud_private_key": "{{env `UCLOUD_PRIVATE_KEY`}}",
    "ucloud_project_id": "{{env `UCLOUD_PROJECT_ID`}}",
    "password": "ucloud_2019"
  },

  "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-irofn4",
    "ssh_password": "{{user `password`}}",
    "ssh_username": "ubuntu",
    "image_name": "packer-test-ubuntu-bj"
  }],

  "provisioners": [{
    "type": "shell",
    "execute_command": "echo '{{user `password`}}' | sudo -S '{{.Path}}'",
    "inline": [
      "sleep 30",
      "sudo apt update",
      "sudo apt install nginx -y"
    ]
  }]
}