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Update labels to resources.

Replace k8s manifest with helm chart

See merge request !1

restrictions of sets and metadataPrefixes

preparations to include flexible configuations for these parameters
based on configMaps
some thoughts how to use these additional resorictions on query
component (for us by now ES)

.gitla-ci.yml ...

files to provide people coming from outside an easier understanding for
the implementation

error handling
a little bit code refactoring