Use ONLYOFFICE stock container, version 5.5.1

Closes #557

See merge request openappstack/openappstack!289

Resolve "Try local volumes instead of host-path"

Closes #581

See merge request openappstack/openappstack!290

Update docs

See merge request openappstack/openappstack!282

Add some parameters to kubernetes deployment based on security checks

Closes #556

See merge request openappstack/openappstack!285

Resolve "Upgrade local path provisioner to 0.0.13"

Closes #580

See merge request openappstack/openappstack!287

Resolve "Switch to rancher's local storage provisioner"

Closes #579

See merge request openappstack/openappstack!286

Upgrade rke

See merge request openappstack/openappstack!284

Resolve "Remove rsyslogd and syslog-ng"

Closes #575

See merge request openappstack/openappstack!279

Resolve "Pod eviction due to low resources"

Closes #521

See merge request openappstack/openappstack!283

Merge branch '573-possible-conflicting-droplet-names-for-multiple-mr-of-the-same-issue' into 'master'

Fix bug in master pipeline

Closes #573

See merge request openappstack/openappstack!281

Resolve "Limit prometheus data retention size"

Closes #287

See merge request openappstack/openappstack!278

Resolve "Promtail leaves too many files open"

Closes #569

See merge request openappstack/openappstack!275