Monitoring with ServiceMonitors, PodMonitors, GrafanaDashboards

[alexei-matveev]

I dont seem to find the corresponding Feature in APIcast Custom Resource Definition.
With 3scale-operator and APImanager it seems to work bei setting .spec.monitoring.enabled=true
in that CR. However the additional APIcast deployments outside of the APIManager Namespace
are not covered.

See https://github.com/3scale/3scale-operator/blob/master/doc/operator-monitoring-resources.md