Update the lmon to support datanetwork interface monitoring
and use collectd to control the alarm information. Now lmon
will obtain the list of interfaces from /etc/lmon/lmon.conf
which is generated by puppet.
Change-Id: Id9ceb78afc15d853ede2dc0b0ef237e8beeee24c
Story: #2002948
Task: #37326
Depends-on: https://review.opendev.org/#/c/694927
Signed-off-by: marvin <weifei.yu@intel.com>