Managing container registries

The container registry is an important component of Neutree infrastructure layer, providing the container images required for cluster deployment.

If the cluster nodes can connect to a Docker-compatible container registry (such as Docker Hub), the cluster will retrieve Neutree container images through the registries you create. If no container registry (such as Harbor or Docker Hub) is available in your environment, see Setting up a temporary container registry.

If the cluster nodes cannot connect to the above registries or the connection is slow, you can manually import container images.

Creating a container registry

1. Log in to the Neutree management interface. Click Image Registries in the left navigation pane, then click Create on the right.

2. Fill in the configuration.

   • Basic Information

     Parameter	Description	Editable after creation
     Name	The name of the container registry.	No
     Workspace	The workspace to which the container registry belongs.	No

   • Image Registry

     Parameter	Description	Editable after creation
     URL	The URL of the container registry. When using Docker Hub, the URL is https://docker.io.	Yes
     Repository	The project or repository in the container registry. Leave this field empty in the following cases: When using Docker Hub. When no project name was set when uploading images with the CLI tool.	Yes

   • Authentication

     Parameter	Description	Editable after creation
     Username	The username for accessing the container registry.	Yes
     Password	The password for accessing the container registry.	Yes

3. After confirming that all configurations are correct, click Save.

Viewing container registries

Log in to the Neutree management interface. Click Image Registries in the left navigation pane. The registry list on the right shows all current container registries. Click a registry name to view its details.

Editing a container registry

After a container registry is created, you can modify the registry URL, repository information, and authentication configuration as needed.

1. Log in to the Neutree management interface. In the registry list or details page, click the menu icon (…) and select Edit.

2. Modify the configuration as needed. For parameter descriptions, see Creating a container registry.

3. After confirming that the configuration is correct, click Save to complete the edit.

Deleting container registries

You can delete one or more container registries at the same time.

1. Log in to the Neutree management interface. In the registry list or details page, click the menu icon (…) and select Delete; or select multiple registries in the list and click Delete above the list.

2. In the confirmation dialog, confirm the deletion and click Delete. The selected container registries will be permanently deleted.