docker_image

Pulls a Docker image to a given Docker host from a Docker Registry.

This resource will not pull new layers of the image automatically unless used in conjunction with docker_registry_image data source to update the pull_triggers field.

Example Usage

# Find the latest Ubuntu precise image.
resource "docker_image" "ubuntu" {
  name = "ubuntu:precise"
}

# Access it somewhere else with ${docker_image.ubuntu.latest}

Dynamic image

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

resource "docker_image" "ubuntu" {
  name          = "${data.docker_registry_image.ubuntu.name}"
  pull_triggers = ["${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.
• keep_locally - (Optional, boolean) If true, then the Docker image won't be deleted on destroy operation. If this is false, it will delete the image from the docker local storage on destroy operation.
• pull_triggers - (Optional, list of strings) List of values which cause an image pull when changed. This is used to store the image digest from the registry when using the docker_registry_image data source to trigger an image update.
• pull_trigger - Deprecated, use pull_triggers instead.

Attributes Reference

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

• latest (string) - The ID of the image.