The new CheckMK agent uses UID 998 (dynamic) for itself. This causes
ownership problems with the old logic of this check. Move instead to a
range, where the UIDs from 200-599 are reserved for administrators, and
check for this range explicitly. Also eliminates the exceptions for ceph
and 2000 from previous iterations.
1. Remove the obsolete pvc-vacuum script install.
2. Remove notifies when modifying configs; we do not want to restart the
daemons uncontrolled.
3. Add bootstrap check to package installs so they only happen on
bootstrap.
This ensures this part of the role, on re-runs, will *only* update
configs and not actually touch the running daemon. This makes it safe to
run before a oneshot/update-pvc-daemons.yml playbook run.
This was causing some confusing conflicts, so create a new fact called
"this_node" which is inventory_hostname.split('.')[0], i.e. the short
name, and use that everywhere instead of an FQDN or true inventory
hostname.
This is required on Debian 11 to use the cset tool, since the newer
systemd implementation of a unified cgroup hierarchy is not compatible
with the cset tool.
Ref for future use:
https://github.com/lpechacek/cpuset/issues/40
1. Detail the caveats and specific situations and ref the documentation
which will provide more details.
2. Always install the configs, but use /etc/default/ceph-osd-cpuset to
control if the script does anything or not (so, the "osd" cset set is
always active just not set in a special way.
1. Remove an explicit OSD journal size, especially such a small one (no
clue why I ever added that...)
2. Add max scrubs, disable scrub during recovery, and set scrub sleep.
3. Add max backfills, tune recovery sleep to 0 to prioritize recovery.
Allows an administrator to set CPU pinning with the cpuset tool for Ceph
OSDs, in situations where CPU contention with VMs or other system tasks
may be negatively affecting OSD performance. This is optional, advanced
tuning and is disabled by default.
Coupled with the removal of explicit --image-features flags to the RBD
command in PVC itself, this ensures that only the two features supported
on kernel 4.19 are enabled by default.
Joshua Boniface
Joshua Boniface