Convert custom-metrics into an addon

README.md

docs/developing-prometheus-rules-and-grafana-dashboards.md

example.jsonnet

experimental/custom-metrics-api/.gitignore

experimental/custom-metrics-api/README.md

...trics-apiserver-resource-reader-cluster-role-binding.yaml

...imental/custom-metrics-api/custom-metrics-apiservice.yaml

...ental/custom-metrics-api/custom-metrics-cluster-role.yaml

...rimental/custom-metrics-api/custom-metrics-configmap.yaml

experimental/custom-metrics-api/deploy.sh

...-metrics-api/hpa-custom-metrics-cluster-role-binding.yaml

experimental/custom-metrics-api/sample-app.yaml

experimental/custom-metrics-api/teardown.sh

.../kube-prometheus/kube-prometheus-custom-metrics.libsonnet