terraform/website/source/docs/providers/docker/d/registry_image.html.markdown

layout	page_title	sidebar_current	description
docker	Docker: docker_registry_image	docs-docker-datasource-registry-image	Finds the latest available sha256 digest for a docker image/tag from a registry.

docker_registry_image

-> Note: The initial (current) version of this data source can reliably read only public images from the official Docker Hub Registry.

Reads the image metadata from a Docker Registry. Used in conjunction with the docker_image resource to keep an image up to date on the latest available version of the tag.

Example Usage

data "docker_registry_image" "ubuntu" {
    name = "ubuntu:precise"
}

resource "docker_image" "ubuntu" {
    name = "${data.docker_registry_image.ubuntu.name}"
    pull_trigger = "${data.docker_registry_image.ubuntu.sha256_digest}"
}

Argument Reference

The following arguments are supported:

• name - (Required, string) The name of the Docker image, including any tags. e.g. alpine:latest

Attributes Reference

The following attributes are exported in addition to the above configuration:

• sha256_digest (string) - The content digest of the image, as stored on the registry.