Version bump 2.2.3

See merge request !20

check_ram2: Fix awk int overflow on too much RAM

Closes #4

See merge request !19

awk is unable to handle more than a 32 bit integer value in its
calculations, yielding invalid results if the maximum int32 value is
exceeded. This commit drops the calculation in the awk statement and
instead performs it in bc, which supports more than 32 bit integers.

Closes: #4

gitignore: Add debian build artifacts

See merge request !18

When building locally, build artifacts are produced which reside in the
repo directory. This commit adds the gitignore entries to prevent these
artifacts from being committed by accident.

Version bump 2.2.2

See merge request !17

check_ram2: Prevent scientific notation errors

See merge request !16

awk might print out numbers in scientific notation when using the print
statement instead of printf. However, bc is unable to handle the
scientific notation, leading to missing perfdata and possibly invalid
results. By switching to printf in the awk expressions, this commit
force the use of regular integer values.

Version bump 2.2.1

See merge request !15

check_ram2: Fix perfdata thresholds syntax

See merge request !14

The min/max and warn/crit thresholds in the Nagios perfdata string in
check_ram2 were swapped, leading to monitoring systems interpreting the
perfdata wrong.

Version bump 2.2.0

See merge request !13

check_ram2: Add new plugin

See merge request !12

check_ram2 needs to be installed on the system as well.

check_ram2 gets added as part of the base package. However, since it
introduces bc(1) as dependency, the control file needs updating.

This commit adds the general description, dependencies and license for
check_ram2 to the README.

The old check_ram plugin returns quite imprecise measurements and
inconsistent performance data depending on the options set. It
furthermore had problems if the system locale wasn't LANG=C. This
improved version was written from scratch and supports systems with any
locale set, since it relies on /proc/meminfo for data. It further allows
a more consistent setting of thresholds and outputs performance data
consistently.

Since this plugin is incompatible with check_ram in terms of the usage,
it is added as a second monitoring plugin.

debian: Add subpackage descriptions

See merge request !11

The testing tag is no longer required for dupload to work. This commit
switches to buster-latest.

The descriptions for the subpackages (the ones which provide extra
plugins with dependencies) were previously omitted. Since this prevents
the deb packages from being uploaded, this commit adds some simple
descriptions for these subpackages.

Version bump 2.1.1

See merge request !10

CHANGELOG: Small refactoring

See merge request !9

The markdown formatting in the changelog was not consistent. This commit
switches to 0 indents for the first level of bullet points and uses the
asterisk as symbol for bullet points instead of the dash (previously,
both were used). This should have no impact on the rendered document.

This commit removes empty sections and makes the “Renamed” section part
of “Changed”, unifying the structure of the changelog.

README: Add install instructions

See merge request !7

ci: Autocreate GitLab release on tag

See merge request !8

To allow viewing Changelogs easily in GitLab and associate assets (e.g.
deb packages) to a releaes, this commit creates GitLab releases for every
tag in the CI pipeline, automatically extracting the latest CHANGELOG
entry as release description.

This commit adds a guide on how to do version bumps, so maintainers have
a reference on how to do it.

There were no instructions on how to install the plugins for the various
distros. This commit adds instructions for a manual installation as well
as using the packages for Debian and Gentoo.

Add deb packaging

See merge request !6

To allow automatic distribution, this commit introduces a job to publish
the packages to the FeM base deb repo.