Backing up Docker images in Container Registry

Data in Container Registry is stored securely and replicated in the Yandex Cloud infrastructure. However, you can create backups of Docker images at any time.

To back up your Docker images:

1. View the list of available registries:

   Management console

   CLI

   API

   1. In the management console, select the folder where you want to view the list of registries.
   2. Select Container Registry.
   3. You can see a list of registries on the Registries tab.

   If you do not have the Yandex Cloud CLI yet, install and initialize it.

   The folder specified when creating the CLI profile is used by default. To change the default folder, use the yc config set folder-id <folder_ID> command. You can specify a different folder using the --folder-name or --folder-id parameter.

   yc container registry list
   

   Result:

   +----------------------+-------------+----------------------+
   |          ID          |   NAME      |      FOLDER ID       |
   +----------------------+-------------+----------------------+
   | crp1abc2tl3d******** | my-registry | b1g23ga82bcv******** |
   +----------------------+-------------+----------------------+
   

   Use the list method for the Registry resource.

2. Get information about Docker images in each registry:

   Management console

   CLI

   API

   1. In the management console, select the folder where you want to view information about Docker images.
   2. Select Container Registry.
   3. On the Registries tab, click the name of the registry.
   4. On the Repositories page, click the name of the repository.
   5. On the Docker images page you can see the Docker images.

   yc container image list --registry-name my-registry
   

   Where registry-name is the registry name.

   Result:

   +----------------------+---------------------+-----------------------------+-------+-----------------+
   |          ID          |       CREATED       |            NAME             | TAGS  | COMPRESSED SIZE |
   +----------------------+---------------------+-----------------------------+-------+-----------------+
   | crpabcpg1pde******** | 2020-10-26 15:45:39 | crp1abc2tl3d********/ubuntu | hello | 27.2 MB         |
   +----------------------+---------------------+-----------------------------+-------+-----------------+
   

   Use the list method for the Image resource.

3. Download the Docker images you want from each registry using their full address, cr.yandex/<name>:<tag>:

   CLI

   docker pull cr.yandex/<registry_ID>/ubuntu:hello
   

   Result:

   hello: Pulling from crp1abc2tl3d********/ubuntu
   Digest: sha256:1d2b339619babc2d008eca2d5293e3c43ff84cbee597ff76dd3e7f7d********
   Status: Downloaded newer image for cr.yandex/crp1abc2tl3d********/ubuntu:hello
   cr.yandex/crp1abc2tl3d********/ubuntu:hello
   

4. Make sure the Docker image has been pulled:

   CLI

   docker image list
   

   Result:

   REPOSITORY                                   TAG     IMAGE ID      CREATED     SIZE
   cr.yandex /crp1abc2tl3d********/ubuntu       hello   d12e********  3 days ago  72.9MB
   ubuntu                                       latest  d12e********  3 days ago  72.9MB