Add feature:

• build proper docker image.
• add example showing how to run the netns-exporter in docker.

As OpenStack User, i want monitor router traffic in namespace.
Currently, there no information related to router in OpenStack, so i write develop some function to show more information. This feature help OpenStack User monitor traffic inside router and more information about router's namespace
This feature included:

• Get router name
• Get IP address of device
• Get current hostname

This function only develop for openstack, we can fork a separate branch and develop on it.

Hi,

I was trying netns-exporter to fetch metrics from linux namespace.
How can i fetch if an interface is up or down.

Regards

We've tried to run netns-exporter on a host with ~1146 network namespaces.

Time spent by curl for waiting of data collection:

real	1m21.932s
user	0m0.009s
sys	0m0.052s

Netns-exporter consumes about 25% of one cpu time in kernel space.

That would be awesome to have stats collected in 10-12 seconds, if possible, without high cpu consumption (no more than one cpu).

Call stack flamegraph:

Add filtering of device by regular expressions.