mkcephfs: make remote temp directory name unique

The predictable file name is a security problem.

Signed-off-by: Sage Weil <sage@inktank.com>
Reported-by: Michael Scherer <misc@zarb.org>
init-ceph: push temp conf file to a unique location on remote host

The predictable file name is a security problem.

Signed-off-by: Sage Weil <sage@inktank.com>
Reported-by: Michael Scherer <misc@zarb.org>
init-ceph: clean up temp ceph.conf filename on exit

Signed-off-by: Sage Weil <sage@inktank.com>
common/MemoryModel: remove logging to /tmp/memlog

This was a hack for dev purposes ages ago; remove it.  The predictable
filename is a security issue.

Signed-off-by: Sage Weil <sage@inktank.com>
Reported-by: Michael Scherer <misc@zarb.org>