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## Example Usage

### Basic

Finds and downloads the latest `ubuntu:precise` image but does not check
for further updates of the image

{{tffile "examples/resources/docker_image/resource.tf"}}

### Dynamic updates

To be able to update an image dynamically when the `sha256` sum changes,
you need to use it in combination with `docker_registry_image` as follows:

{{tffile "examples/resources/docker_image/resource-dynamic.tf"}}

### Build

You can also use the resource to build an image.
In this case the image "zoo" and "zoo:develop" are built.

{{tffile "examples/resources/docker_image/resource-build.tf"}}

You can use the `triggers` argument to specify when the image should be rebuild. This is for example helpful when you want to rebuild the docker image whenever the source code changes.

{{tffile "examples/resources/docker_image/resource-build-triggers.tf"}}

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