Docker - WARNING: No memory limit support 问题解决

1. 打开/etc/default/grub文件，添加如下内容：
   GRUB_CMDLINE_LINUX="cgroup_enable=memory swapaccount=1"

2. 更新grub
   $ sudo update-grub

3. 重启系统
   $ sudo reboot

4. 确认问题是否解决

   $ sudo docker info
   Containers: 0
   Running: 0
   Paused: 0
   Stopped: 0
   Images: 0
   Server Version: 1.11.2
   Storage Driver: aufs
   Root Dir: /var/lib/docker/aufs
   Backing Filesystem: extfs
   Dirs: 0
   Dirperm1 Supported: true
   Logging Driver: json-file
   Cgroup Driver: cgroupfs
   Plugins:
   Volume: local
   Network: host bridge null
   Kernel Version: 3.16.0-4-amd64
   Operating System: Debian GNU/Linux 8 (jessie)
   OSType: linux
   Architecture: x86_64
   CPUs: 4
   Total Memory: 3.739 GiB
   Name: debian
   ID: YGL7:QZFU:O6ZW:3TDM:LQRK:LNA7:OXVA:C7TI:W2PI:DAE6:2GBQ:IOT2
   Docker Root Dir: /var/lib/docker
   Debug mode (client): false
   Debug mode (server): false
   Registry: https://index.docker.io/v1/
   WARNING: No kernel memory limit support
   WARNING: No cpu cfs quota support
   WARNING: No cpu cfs period support

以下报错消失：

WARNING: No memory limit support
WARNING: No swap limit support