Grafana dashboard: Kubernetes Cluster
Description: Cluster level overview of workloads deployed, based on prometheus metrics exposed by kubelet, node-exporter, nginx ingress controller

Updated from https://grafana.com/dashboards/4018 for use with
- Kubernetes v1.10.~
- [Prometheus v2.3.1](https://hub.docker.com/r/prom/prometheus/)
- [Prometheus Node Exporter v0.16.0](https://hub.docker.com/r/prom/node-exporter/)
- [Nginx Ingress Controller 0.15.0](https://quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.15.0)
- [Kube State Metrics v1.3.1](https://quay.io/coreos/kube-state-metrics:v1.3.1)


Shows basic stuff about

- cluster health (pod status count, pod restarts etc.)
- cluster nodes (cpu, memory, storage etc.)
- running pods (cpu, memory etc.)
- nginx ingress controller (connections, resp time)

intended for a starting point for looking at and debugging cluster health / performance

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