info

用法：docker info

功能：显示docker系统级的相关信息，包括系统中的Container数量、Image数量、Image的存储驱动、容器的执行驱动、内核版本、主机操作系统版本等信息。

选项：无

示例：

  1. $ sudo docker info
  2. Containers: 4
  3.  Running: 3
  4.  Paused: 0
  5.  Stopped: 1
  6. Images: 45
  7. Server Version: 18.09.0
  8. Storage Driver: devicemapper
  9.  Pool Name: docker-thinpool
  10.  Pool Blocksize: 524.3kB
  11.  Base Device Size: 10.74GB
  12.  Backing Filesystem: ext4
  13.  Udev Sync Supported: true
  14.  Data Space Used: 11GB
  15.  Data Space Total: 51GB
  16.  Data Space Available: 39.99GB
  17.  Metadata Space Used: 5.083MB
  18.  Metadata Space Total: 532.7MB
  19.  Metadata Space Available: 527.6MB
  20.  Thin Pool Minimum Free Space: 5.1GB
  21.  Deferred Removal Enabled: true
  22.  Deferred Deletion Enabled: true
  23.  Deferred Deleted Device Count: 0
  24. ......