Add process monitoring

[Dankoy]

Is your feature request related to a problem? Please describe.
Sometimes some processes use much CPU and IO stats, but you can't say which processes. It should be monitored to blame bad processes.

Describe the solution you'd like
Possible solutions:

1. https://github.com/ncabatoff/process-exporter + https://grafana.com/grafana/dashboards/8378-system-processes-metrics/

Describe alternatives you've considered
2) https://devconnected.com/monitoring-linux-processes-using-prometheus-and-grafana/

But it costs more work to do.

[Dankoy]

High IO usage is caused by mimir container. At the time of alert HostCpuHighIowait and HostUnusualDiskWriteLatency happens when mimir writes data.

Also container memory cache increases almost twice at that time.

Solution for this issue is not necessary, but just for academic interest it could be done.