查看 Docker 占用了多少磁盘
磁盘满了怀疑是 Docker 时，看镜像、容器、数据卷、构建缓存各占多少
docker system df示例输出
TYPE TOTAL ACTIVE SIZE RECLAIMABLE Images 23 4 9.8GB 8.1GB (82%) Containers 4 4 12MB 0B (0%) Local Volumes 3 2 1.2GB 300MB (25%) Build Cache 41 0 2.4GB 2.4GB
磁盘满了怀疑是 Docker 时，看镜像、容器、数据卷、构建缓存各占多少
docker system dfTYPE TOTAL ACTIVE SIZE RECLAIMABLE Images 23 4 9.8GB 8.1GB (82%) Containers 4 4 12MB 0B (0%) Local Volumes 3 2 1.2GB 300MB (25%) Build Cache 41 0 2.4GB 2.4GB