> ## Documentation Index
> Fetch the complete documentation index at: https://docs.domino.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# AMI operations

The following sections describe how to perform important operations on an EC2 instance to set it up as the template for a new AMI suitable for Domino.

## Install Docker

See the official instructions about how to [install Docker](https://docs.docker.com/engine/install/).

## Pull Environment images

To pre-cache environment images, you must run `docker pull` for the base images that those environments are built on, or the built environments from the internal registry itself.

To pull the [Domino Standard Environment](/cloud/platform-capabilities/core-concepts/compute-environments/manage-compute-environments/2-domino-standard-environments) base images, your command would look like this (substituting the version string for the image you want to cache):

```shell theme={null}
docker pull quay.io/domino/base:<desired version>
```

To pull a built image from the Domino internal registry, you must find its URI on the **Revisions** tab in the Environment details page.

For example, to cache revision #9 of the environment shown in the previous screenshot, you would run:

```shell theme={null}
docker pull 100.97.56.113:5000/domino-5d7abf2715f3690007f23081:9
```

## Install NVIDIA Docker 2.0 (GPU AMIs only)

See the official instructions for [ installing the nvidia-docker 2.0 runtime](https://github.com/NVIDIA/nvidia-docker/wiki/Installation-\(version-2.0\)).

## Install GPU drivers (GPU AMIs only)

To use the GPU on a GPU node, install the appropriate driver on the machine image. Domino does not have a requirement for any specific driver version, however, if you want to use a Domino Standard Environment, it must be a version that is compatible with the current version of Cuda shown in standard environments.

View a [compatibility matrix](https://docs.nvidia.com/deploy/cuda-compatibility/index.html#binary-compatibility__table-toolkit-driver).

If you’d like to install the GPU drivers manually, you can follow these [instructions](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/install-nvidia-driver.html#obtain-nvidia-driver-linux).

To validate that your GPU machine is configured properly, reboot the machine and run the following:

```shell theme={null}
docker run --runtime=nvidia --rm nvidia/cuda nvidia-smi
```

This shows the driver number and GPU devices if installed successfully.

## Change the default Docker runtime (GPU AMIs only)

See the [official instructions from NVIDIA](https://docs.nvidia.com/dgx/nvidia-container-runtime-upgrade/index.html#using-nv-container-runtime) about using the container runtime.

You must restart Docker before this will work.