➜  ~ git:(master) ✗ diff -C3 /usr/lib/systemd/system/docker.service /etc/systemd/system/docker.service
*** /usr/lib/systemd/system/docker.service	2016-02-12 00:53:30.000000000 +0100
--- /etc/systemd/system/docker.service	2016-02-14 21:48:19.992194898 +0100
***************
*** 6,13 ****

  [Service]
  Type=notify
! ExecStart=/usr/bin/docker daemon -H fd://
  MountFlags=slave
  LimitNOFILE=1048576
  LimitNPROC=1048576
  LimitCORE=infinity
--- 6,14 ----

  [Service]
  Type=notify
! ExecStart=/usr/bin/docker daemon --bip=172.17.0.1/16 -H fd://
  MountFlags=slave
+ TasksMax=infinity
  LimitNOFILE=1048576
  LimitNPROC=1048576
  LimitCORE=infinity