»Yandex.Cloud Compute Image Exporter Post-Processor

Type: yandex-export Artifact BuilderId:

The Yandex.Cloud Compute Image Exporter post-processor exports the resultant image from a yandex build as a qcow2 file to Yandex Object Storage.

The exporter uses the same Yandex.Cloud folder and authentication credentials as the yandex build that produced the image. A temporary VM is started in the folder using these credentials. The VM mounts the built image as a secondary disk, then dumps the image in qcow2 format. The VM then uploads the file to the provided Yandex Object Storage paths using the same credentials.

As such, assigned Service Account must have write permissions to the Yandex Object Storage paths. A new temporary static access keys from assigned Service Account used to upload image.

Also, you should configure ssh communicator. Default ssh_username to ubuntu.




  • token (string) - OAuth token or IAM token to use to authenticate to Yandex.Cloud. Alternatively you may set value by environment variable YC_TOKEN.


  • paths ([]string) - List of paths to Yandex Object Storage where exported image will be uploaded. Please be aware that use of space char inside path not supported. Also this param support build template function. Check available template data for Yandex builder. Paths to Yandex Object Storage where exported image will be uploaded.


  • folder_id (string) - The folder ID that will be used to launch instances and store images. Alternatively you may set value by environment variable YC_FOLDER_ID. To use a different folder for looking up the source image or saving the target image to check options 'source_image_folder_id' and 'target_image_folder_id'.
  • service_account_id (string) - Service Account ID with proper permission to modify an instance, create and attach disk and make upload to specific Yandex Object Storage paths.



  • endpoint (string) - Non standard API endpoint. Default is

  • service_account_key_file (string) - Path to file with Service Account key in json format. This is an alternative method to authenticate to Yandex.Cloud. Alternatively you may set environment variable YC_SERVICE_ACCOUNT_KEY_FILE.

  • max_retries (int) - The maximum number of times an API request is being executed.


  • source_image_folder_id (string) - The ID of the folder containing the source image. Default standard-images.

  • source_image_family (string) - The source image family to start export process. Default ubuntu-1604-lts. Image must contains utils or supported package manager: apt or yum - requires root or sudo without password. Utils: qemu-img, aws. The qemu-img utility requires root user or sudo access without password.

  • source_image_id (string) - The source image ID to use to create the new image from. Just one of a source_image_id or source_image_family must be specified.

  • source_disk_extra_size (int) - The extra size of the source disk in GB. This defaults to 0GB. Requires losetup utility on the instance.

    Careful! Increases payment cost. See perfomance.


  • serial_log_file (string) - File path to save serial port output of the launched instance.

  • state_timeout (duration string | ex: "1h5m2s") - The time to wait for instance state changes. Defaults to 5m.


  • instance_cores (int) - The number of cores available to the instance.

  • instance_gpus (int) - The number of GPU available to the instance.

  • instance_mem_gb (int) - The amount of memory available to the instance, specified in gigabytes.

  • instance_name (string) - The name assigned to the instance.

  • platform_id (string) - Identifier of the hardware platform configuration for the instance. This defaults to standard-v2.

  • labels (map[string]string) - Key/value pair labels to apply to the launched instance.

  • metadata (map[string]string) - Metadata applied to the launched instance.

  • metadata_from_file (map[string]string) - Metadata applied to the launched instance. The values in this map are the paths to the content files for the corresponding metadata keys.

  • preemptible (bool) - Launch a preemptible instance. This defaults to false.


  • disk_name (string) - The name of the disk, if unset the instance name will be used.

  • disk_size_gb (int) - The size of the disk in GB. This defaults to 10/100GB.

  • disk_type (string) - Specify disk type for the launched instance. Defaults to network-ssd.

  • disk_labels (map[string]string) - Key/value pair labels to apply to the disk.


  • subnet_id (string) - The Yandex VPC subnet id to use for the launched instance. Note, the zone of the subnet must match the zone in which the VM is launched.

  • zone (string) - The name of the zone to launch the instance. This defaults to ru-central1-a.

  • use_ipv4_nat (bool) - If set to true, then launched instance will have external internet access.

  • use_ipv6 (bool) - Set to true to enable IPv6 for the instance being created. This defaults to false, or not enabled.

  • use_internal_ip (bool) - If true, use the instance's internal IP address instead of its external IP during building.

»Basic Example

The following example builds a Compute image in the folder with id b1g8jvfcgmitdrslcn86, with an Service Account whose keyfile is account.json. After the image build, a temporary VM will be created to export the image as a qcow2 file to s3://packer-export/my-exported-image.qcow2 and s3://packer-export/image-number-two.qcow2. keep_input_artifact is true, so the source Compute image won't be deleted after the export.

In order for this example to work, the service account associated with builder must have write access to both s3://packer-export/my-exported-image.qcow2 and s3://packer-export/image-number-two.qcow2 and get permission to modify temporary instance (create new disk, attach to instance, etc).

  "builders": [
      "type": "yandex",
      "folder_id": "b1g8jvfcgmitdrslcn86",
      "subnet_id": "e9bp6l8sa4q39yourxzq",
      "zone": "ru-central1-a",

      "source_image_family": "ubuntu-1604-lts",
      "ssh_username": "ubuntu",
      "use_ipv4_nat": true
  "post-processors": [
      "type": "yandex-export",
      "folder_id": "b1g8jvfcgmitdrslcn86",
      "subnet_id": "e9bp6l8sa4q39yourxzq",

      "service_account_id": "ajeu0363240rrnn7xgen",

      "paths": [
        "s3://packer-export-bucket/template-supported-get-{{build `ImageID` }}-right-here.qcow2"
      "keep_input_artifact": true
{  "builders": [    {      "type": "yandex",      "folder_id": "b1g8jvfcgmitdrslcn86",      "subnet_id": "e9bp6l8sa4q39yourxzq",      "zone": "ru-central1-a",
      "source_image_family": "ubuntu-1604-lts",      "ssh_username": "ubuntu",      "use_ipv4_nat": true    }  ],  "post-processors": [    {      "type": "yandex-export",      "folder_id": "b1g8jvfcgmitdrslcn86",      "subnet_id": "e9bp6l8sa4q39yourxzq",
      "service_account_id": "ajeu0363240rrnn7xgen",
      "paths": [        "s3://packer-export-bucket/my-exported-image.qcow2",        "s3://packer-export-bucket/template-supported-get-{{build `ImageID` }}-right-here.qcow2"      ],      "keep_input_artifact": true    }  ]}