Update documentation for downloading docker image from AR

README.md

@@ -45,49 +45,5 @@ to obtain the script.
 
 ## Docker
 
-We also provide the docker image with installed cuttlefish debian packages
-inside; including `cuttlefish-base`, `cuttlefish-user`, and
-`cuttlefish-orchestration`.
-Currently it's available for x86_64 and ARM64 architecture.
-
-### Build docker image manually
-
-Please run below command to build manually.
-
-```bash
-cd /path/to/android-cuttlefish
-cd docker
-./image-builder.sh
-```
-
-You can validate if the docker image is successfully built by checking
-`cuttlefish-orchestration` in `docker image list` like below.
-```
-$ docker image list
-REPOSITORY               TAG    IMAGE ID       CREATED          SIZE
-cuttlefish-orchestration latest 0123456789ab   2 minutes ago    690MB
-...
-```
-
-### Download prebuilt image
-
-Downloading latest image is available on
-[Github action history](https://github.com/google/android-cuttlefish/actions/workflows/artifacts.yaml?query=event%3Apush).
-
-After downloading image, please load the image and verify with
-`docker image list`.
-
-```bash
-docker load --input ${PATH_TO_PREBUILT_DOCKER_IMAGE}
-```
-
-Registering the tag of loaded image as `latest` is available with below script.
-
-```bash
-docker tag cuttlefish-orchestration:${PREBUILT_DOCKER_IMAGE_TAG} cuttlefish-orchestration:latest
-```
-
-### Use docker image with Cloud Orchestrator
-
-Please refer to
-[Cloud Orchestrator documentation](https://github.com/google/cloud-android-orchestration/blob/main/docs/cloud_orchestrator.md).
+Please read [docker/README.md](docker/README.md) to know how to use docker image
+containing Cuttlefish debian packages.

docker/README.md

@@ -0,0 +1,43 @@
+# Docker
+
+We provide docker images with installed cuttlefish debian packages inside;
+including `cuttlefish-base`, `cuttlefish-user`, and `cuttlefish-orchestration`.
+Currently it's available for x86_64 and ARM64 architectures.
+
+## Download docker image
+
+Currently docker image is available to download from Artifact Registry.
+Please run command below to download latest version of docker image.
+
+Also, please choose one location among `us`, `europe`, or `asia`.
+It's available to download artifacts from any location, but download latency is
+different based on your location.
+
+```bash
+DOWNLOAD_LOCATION=us # Choose one among us, europe, or asia.
+docker pull $DOWNLOAD_LOCATION-docker.pkg.dev/android-cuttlefish-artifacts/cuttlefish-orchestration/cuttlefish-orchestration
+```
+
+## Use docker image with Cloud Orchestrator
+
+Please refer to
+[Cloud Orchestrator documentation for on-premise server](https://github.com/google/cloud-android-orchestration/blob/main/scripts/on-premises/single-server/README.md).
+
+## Build docker image manually
+
+Please run below command to build manually.
+
+```bash
+cd /path/to/android-cuttlefish
+cd docker
+./image-builder.sh -d
+```
+
+You can validate if the docker image is successfully built by checking
+`cuttlefish-orchestration` in `docker image list` like below.
+```
+$ docker image list
+REPOSITORY               TAG    IMAGE ID       CREATED          SIZE
+cuttlefish-orchestration latest 0123456789ab   2 minutes ago    690MB
+...
+```