* commit 'dcfbaf30':
  fix tests
  implemented get last in group, added tests

* commit '576d7840':
  update versions

* commit '971ba7cb':
  Add special case for pip version, which shouldn't have leading zeroes

* commit 'b7bbd656':
  Update docusaurus version to 2.0.0-beta.6

* commit 'db24b20b':
  Missing files for version freeze and docker image name updates
  Freeze docs version for 21.09.0

* commit '0520a4aa':
  Add missing Makefiles
  Remove the errorneous gitignore file
  Copy the whole site source folder to the build dirctory
  Cookbook update
  update python simple examples
  Update changelog, add missing source file
  Docusaurus site update.

* commit '7a366e48':
  update changelog
  configure more alerts
  update prom metric for receiver
  add metrics endpoint to broker, update alerts
  fix test
  fix deployment
  metrics for receiver
  ignore mongoose warnings
  fix discovery, add metrics to receiver
  add prometheus and alertmanager