Now, zabbix agent return information regardless namespaces. So, on machines with userspace containers it may give "wrong" data (ie. proc.num[] return number of processes in all namespaces, not in his own namespace). It is very inconvient to monitor container's host machine with such behavior.

Can you make optional switch for agent to look up only in his own namespace for all returnted data (proc.num/proc.mem/...)?