Observability

Dalibor Švonavecrequested to merge
observability into main

Adds observability to the micro-services:

  • actuator health for all services
  • actuator info for all services
  • actuator metrics for all services
  • some custom metrics added
  • Prometheus container added to Docker to show metrics
  • Grafana container added to Docker for grafical metrics display
  • basic Grafana dashboard added

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