Docker Registry（包括 Harbor）默認沒有可以直觀查看使用空間的工具，registry-du 這個工具就可以用來統計 Registry 的 Project 空間占用。例如：

安裝

pip3 install registry-du

用法

registry-du /path/to/registry/docker/registry/v2

示例

?  registry-du /home/X/du-demo/registry/data/docker/registry/v2

Registry Path is: /home/X/du-demo/registry/data/docker/registry/v2
+Project-Size----------+-----------+
| Project Name         | Size(MiB) |
+----------------------+-----------+
| jellyfin             | 277.55    |
| library              | 147.62    |
| mongo-express:latest | 47.2      |
+----------------------+-----------+
+Image-Size----------------+-----------+
| Image Name               | Size(MiB) |
+--------------------------+-----------+
| jellyfin/jellyfin:latest | 277.55    |
| library/mysql:5.7        | 147.62    |
| mongo-express:latest     | 47.2      |
+--------------------------+-----------+