HCP Packer Image Data Source

Type: hcp-packer-image

The HCP Packer Image Data Source retrieves information about an image from the HCP Packer registry. This information can be used to provide a source image to various Packer builders.

To get started with HCP Packer, refer to the HCP Packer documentation or try the Get Started with HCP Packer tutorials.

Revoked Iterations

If an iteration is revoked, the hcp-packer-iteration data source will fail and Packer won't proceed with the build. Building new images from a revoked image is not compliant. Iterations that are scheduled to be revoked will still be considered valid until the revocation date.

Basic Example

Below is a fully functioning example. It stores information about an image, which can then be parsed and accessed as a variable.

data "hcp-packer-image" "example" {
  bucket_name = "hardened-ubuntu-16-04"
  iteration_id = "${data.hcp-packer-iteration.hardened-source.id}"
  cloud_provider = "aws"
  region = "us-east-1"
}

Full Example

This data source can be used in conjunction with the hcp-packer-iteration data source to retrieve an image ID using a channel. You provide the channel name to the iteration data source, then use the iteration source in the image data source, then use the image data source inside your source block.

# Retrieves information about the HCP Packer "iteration"; an "iteration" can be
# thought of as all the metadata created by a single call of `packer build`.
data "hcp-packer-iteration" "hardened-source" {
  bucket_name = "hardened-ubuntu-16-04"
  channel = "packer-test"
}

# Retrieves information about the HCP Packer "image"; an image can be thought
# of as all the metadata (including the artifact names) created by a single
# "source" builder; this can include multiple images so we provide a cloud
# region to disambiguate.
data "hcp-packer-image" "foo" {
  bucket_name = "hardened-ubuntu-16-04"
  iteration_id = data.hcp-packer-iteration.hardened-source.id
  cloud_provider = "aws"
  region = "us-east-1"
}

# This source uses the output from a previous Packer build. By using the
# HCP Packer registry in this way, you can easily create build pipelines where
# a single base image can be customized in multiple secondary layers.
source "amazon-ebs" "packer-secondary" {
  source_ami       = data.hcp-packer-image.foo.id
  # ...
}

Configuration Reference

Configuration options are organized below into two categories: required and optional. Within each category, the available options are alphabetized and described.

Required:

• bucket_name (string) - The name of the bucket your image is in.

• channel (string) - The name of the channel to use when retrieving your image. Either this or iteration_id MUST be set. Mutually exclusive with iteration_id. If using several images from a single iteration, you may prefer sourcing an iteration first, and referencing it for subsequent uses, as every hcp-packer-image with the channel set will generate a potentially billable HCP Packer request, but if several hcp-packer-images use a shared hcp-packer-iteration that will only generate one potentially billable request.

• iteration_id (string) - The ID of the iteration to use when retrieving your image Either this or channel MUST be set. Mutually exclusive with channel

• cloud_provider (string) - The name of the cloud provider that your image is for. For example, "aws" or "gce".

• region (string) - The name of the cloud region your image is in. For example "us-east-1".

Optional:

• component_type (string) - The specific Packer builder used to create the image. For example, "amazon-ebs.example"

Output Fields:

• cloud_provider (string) - The name of the cloud provider that the image exists in. For example, "aws", "azure", or "gce".

• component_type (string) - The specific Packer builder or post-processor used to create the image.

• created_at (string) - The date and time at which the image was created.

• build_id (string) - The ID of the build that created the image. This is a ULID, which is a unique identifier similar to a UUID. It is created by the HCP Packer Registry when an build is first created, and is unique to this build.

• iteration_id (string) - The iteration ID. This is a ULID, which is a unique identifier similar to a UUID. It is created by the HCP Packer Registry when an iteration is first created, and is unique to this iteration.

• channel_id (string) - The ID of the channel used to query the image iteration. This value will be empty if the iteration_id was used directly instead of a channel.

• packer_run_uuid (string) - The UUID associated with the Packer run that created this image.

• id (string) - ID or URL of the remote cloud image as given by a build.

• region (string) - The cloud region as given by packer build. eg. "ap-east-1". For locally managed clouds, this may map instead to a cluster, server or datastore.

• labels (map[string]string) - The key:value metadata labels associated with this build.