Prometheus glusterfs exporter

This exporter is meant to be started next to a gluster peer (not neccessarily serving bricks!).

It will only work with volumes that have profiling enabled.

 gluster volume profile <volname> start

The exporter will not set up profiling, but you can run the following command to enable profiling on all volumes.

 gluster volume list | xargs -I {} -n1 gluster volume profile {} start

Building glusterfs_exporter

Can be done with cargo and a recent-ish rust.

cargo install