Ceph - Cluster

Ceph Cluster overview.

Description

This dashboard is targeted for service managers or teams which manage more than one ceph instances. It shows all the stats per cluster and easy to switch between them. This dashboard uses native Ceph prometheus module (ceph_exporter not needed) for ceph stats and node exporter for node stats

Requisites

Ceph 12.2 Luminous or Ceph 13.2 Mimic (Note that some of the stats are only reported by Mimic instances)
Node Exporter for node metrics

Setup

Enable ceph prometheus module on every cluster: ceph mgr module enable prometheus
Allow traffic through the port 9283 of the machines containing the ceph mgr
To ensure that you don’t lose the metrics between mgr fail-overs, add all the mgr to the target section in Prometheus (depending of the prometheus scrape interval some of the metrics could be lost during the failover)
In prometheus configuration, create a new label when defining the ceph targets and also the node targets, like:

{ceph-targets}

{
        "targets": [ "mycluster-mgr-1:9283", "mycluster-mgr-2:9283", "mycluster-mgr-3:9283" ],
        "labels": {
           "cluster":"mycluster"
        }
}

{node-exporter-targets}

{
        "targets": [ "mycluster-node-1:9100", "mycluster-node-2:9100", "mycluster-node-3:9100" ],
        "labels": {
           "cluster":"mycluster"
        }
}