Issue 29

[f18m]

cmonitor_collector:

• Large Cgroup configuration code refactor: revise completely and deep-test all supported kernels/cgroup-provider combination
• Add unit tests for SYSTEMD-created cgroups (previously we had only for DOCKER-created cgroups)
• Fix search for cmonitor_collector PID in cgroups v2 (when running outside a container)
• Log errors on stdout when running in debug mode
• Change behavior: if some cgroup v2 limit cannot be detected, keep monitoring instead of giving up; this makes collector logic much more robust against unknown environments (combination of linux kernel, distribution, systemd/docker/etc)
• Fix bug where last baremetal cpu was not monitored
• in README: add info on how to build from sources

cmonitor tools:

• Fix formatting of Python scripts by increasing length used by black
• in cmonitor_chart: fix reading of timestamps when --utc is not provided

all:

• bump version to 2.2