https://stackoverflow.com/q/51431537 https://docs.gitlab.com/ee/ci/yaml/#exclude-jobs-with-rules-from-certain-pipelines https://docs.gitlab.com/ee/ci/yaml/README.html#workflowrules
https://stackoverflow.com/q/51431537 https://docs.gitlab.com/ee/ci/yaml/#exclude-jobs-with-rules-from-certain-pipelines
set-up struktur (https://github.com/lafkon/servus.btsw/blob/9d034b35/Behind_The_Smart_World_PDF.mdsh)
