BIND: libcap is now mandatory

See merge request !71

On Linux, the libcap is mandatory for BIND since 9.19.7. BIND always
drops capabilities and consequently files accessed by BIND must be owned
by the same user as BIND process, which in our case means root inside
the container.

shotgun: add extra scenarios

See merge request !70

It can be useful to test GET or POST methods on their own.

These can be useful to test behaviour and performance of resolvers for
malicious clients which intentionally try to exhaust server resources.

bind: parametrize additional named.conf options

See merge request !69

At ISC, we've been running a bunch of tests with this parameter set to
10k and it seems to be a very reasonable default.

Support pulling shotgun/flamegraph images from registries

See merge request !68

The newer version works just like the one before. Additionally, this
newer version is already used inside kresd containers (see
roles/kresd/defaults/main.yaml).

If the image is cached in some registry, this makes it possible to
re-use the remote image instead of rebuilding it.

The original motivation to use local docker images was to make it easy
to test any shotgun version, which was especially useful during
development.

Nowadays its development slowed down and it is useful to be able to
cache the image in registry and re-use it without the need to rebuild it
on every machine.

resource monitor: collect resource usage data during test

See merge request !67

Use ISC's resource-monitor repository in favor of deploying and using
custom scripts directly from this role.

shotgun: ensure generator timestamps are integers

See merge request !66

The conversion into integer should happen after the division, otherwise
we end up with a float.

Additionally, the condition was problematic in Ansible 6.0+ and since it
didn't make much sense anyway, it was removed. It doesn't seem to be
possible to set facts and check their value in the same task.

various updates

See merge request !65

ansible: support for collapsible job logs format for Gitlab

See merge request !64

Fixes pylint warning R1725 (super-with-arguments).

I would love not to collapse sections which cointain errors, but that's
currently not possible:
https://gitlab.com/gitlab-org/gitlab/-/issues/290225

bind: ability to cache non-tagged images

See merge request !63

If the image is not available, registry pull will be attempted, followed
by build if registry does not contain the image.
Pull is not done if the image is already available locally
(this is properly of the Ansible module).

roles/shotgun: use v20210714 release

See merge request !62

Tomas Krizek authored Jul 14, 2021 and Petr Špaček committed Jul 20, 2021

To be able to collect the shotgun build log, it needs to be place into
work_dir rather than shotgun_workdir, since the latter is cleaned up
before logs are collected.

tuning: allow customization of sysctl file path

See merge request !61

We have to use new variable name otherwise Ansible templating engine
gets into loop.

fixup! bind: collect internal statistics at the end

See merge request !60

bind: remove resolver-query-timeout option from named.conf

See merge request !58

This was nonsense. The value is silently limited to minimal value 10
seconds, i.e. the old config was no-op.

bind: collect internal statistics at the end

See merge request !59