Monitoring Ceph with Prometheus and Grafana

Monitoring Ceph with Prometheus and Grafana.md

Monitoring Ceph with Prometheus and Grafana

Concepts

• Ceph Exporter: returns data on demand
• Prometheus: data collector
• Grafana: data visualizer

Installataion Steps

1. Deploy ceph-exporter on host that has access to ceph

docker run -dp 9128:9128 --name ceph-exporter digitalocean/ceph_exporter

2. Deploy Prometheus on monitoring host

docker volume create prometheus-data
mkdir /etc/prometheus
curl https://raw.githubusercontent.com/prometheus/prometheus/master/documentation/examples/prometheus.yml -O /etc/prometheus/prometheus.yml
docker run -dp 9090:9090 --name prometheus -v prometheus-data:/prometheus-data -v /etc/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml prom/prometheus

3. Config Prometheus to retrieve data from ceph-exporter add the following to scrape_configs section in prometheus.yml

- job_name: ceph
  static_configs:
    - targets: ["$CEPH_EXPORTER_HOST"]

Then restart the prometheus container 4. Deploy Grafana

docker volume create grafana-data
docker run -dp 3000:3000 --name grafana -v grafana-data:/var/lib/grafana grafana/grafana

5. Configure grafana
   • add prometheus data source
   • add dashboards

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