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runc package drops following file.

/usr/lib/sysctl.d/99-containers.conf

And enables /proc/sys/fs/may_detach_mounts

We need this for docker as well.

By default installing docker does not install runc so this does not get enabled. 

We have two options.

- Either drop similar config file drom docker package.
- Or pull in runc when installing docker.

Hmmm..., may be first one is little light weight solution. So how about dropping another file from docker package says /usr/lib/sysctl.d/99-docker.conf

Lokesh, will you be able to take care of this please.

Confirmed:

   # cat /proc/sys/fs/may_detach_mounts
   0

   # yum install docker
   ...
   Installed:
     docker.x86_64 2:1.12.6-41.1.gitf55a118.el7
   ...
   # cat /proc/sys/fs/may_detach_mounts
   1
   # rpm -q runc
   package runc is not installed

After evaluating this issue, there are no plans to address it further or fix it in an upcoming release.  Therefore, it is being closed.  If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.