Resolve "Backup and restore instructions"

Closes #152

See merge request openappstack/openappstack!194

Resolve "Let users test their cluster easily"

Closes #441

See merge request openappstack/openappstack!191

Closes: #152

See https://open.greenhost.net/openappstack/openappstack/-/jobs/15079
for an example where the script fails but the CI job still continues

Resolve "Wrong NodeFilesystemSpaceFillingUp prometheus alert"

Closes #446

See merge request openappstack/openappstack!193

Closes: #446

Resolve "Ignore KubeAPILatencyHigh Prometheus alert"

Closes #385

See merge request openappstack/openappstack!185

define before_tag function here instead of in oas_behave repo

See merge request openappstack/openappstack!189

Resolve "Hostname is still too long"

Closes #442

See merge request openappstack/openappstack!188

Resolve "Remove helmfiles"

Closes #408

See merge request openappstack/openappstack!172

Resolve "Hostname is still too long"

Closes #442

See merge request openappstack/openappstack!186

Closes: #385

Resolve "Don't generate OnlyOffice fonts on startup"

Closes #432

See merge request openappstack/openappstack!178

Closes: #432

Ignore failing pods and jobs from NC installation

Closes #379

See merge request openappstack/openappstack!184

Currently, Nextcloud installation is a pain where a lot of jobs and pod
fail until NC is finally installed. Still they show up in proemetheus and
create noise, why we ignore them in this check.
Once we achieve a better NC installation we should revert this.

Closes: #379

Improve cert-manager troubleshooting

See merge request openappstack/openappstack!170