anchor.diff:  
   This will change after Heapster, InfluxDB and Grafana are installed.
   
  +== Heapster
  +
  +https://github.com/kubernetes/heapster[Heapster] is a metrics aggregator and processor. It is installed as a cluster-wide pod. It gathers monitoring and events data for all containers on each node by talking to the Kubelet. Kubelet itself fetches this data from https://github.com/google/cadvisor[cAdvisor]. This data is persisted in a time series database https://github.com/influxdata/influxdb[InfluxDB] for storage. The data is then visualized using a using http://grafana.org/[Grafana] dashboard or can be viewed in Kubernetes Dashboard.
  +
  +Heapster collects and interprets various signals like compute resource usage, lifecycle events, etc, and exports cluster metrics via REST endpoints.
  +
  +Heapster, InfluxDB and Grafana are http://kubernetes.io/docs/admin/addons/[Kubernetes addons].
  +
   === Installation
   
   This command will install Heapster, InfluxDB and Grafana:
  
positive.code:     kubectl create -f heapster/templates/
  
  Heapster is now aggregating metrics from the cAdvisor instances running on each node. This data is stored in an InfluxDB instance and is now exposed for visualization through Grafana which is accessible at http://localhost:8001/api/v1/namespaces/kube-system/services/monitoring-grafana/proxy/?orgId=1. In case proxy was terminated, you need to start it again using `kubectl proxy`.
  
  There are some built-in dashboards for monitoring the cluster and workloads. They are available by clicking on the upper left corner of the screen.
  
  
negative.code: . Heapster, InfluxDB and Grafana
  . Prometheus
  
  == Pre-requisites
  
  Make sure the cluster is up and running as explained in the link:../cluster-install[installation instructions].
  
  