title: How to prohibit ordinary users to read the file '/proc/cpuinfo' in a docker?
body: <p>Default, the file '/proc/cpuinfo' can be read by all users in a docker. So any user can get the host's info from it. I'd like to know how to prohibit ordinary users to read the file '/proc/cpuinfo' in a docker or don't get anything useful from it is also ok.  What if i chmod the file to 440?</p>