Monitoring¶
参考
The available Prometheus
endpoints for monitoring Krill Manager components can be determined using the
krillmanager status
command:
# krillmanager status
...
...
...
- Prometheus monitoring endponts:
- Krill : http://<YOUR DOMAIN>:9657/metrics
- NGINX : http://<YOUR DOMAIN>:9113/metrics
- Docker : http://<YOUR DOMAIN>:9323/metrics
- O/S : http://<YOUR DOMAIN>:9100/metrics
- Gluster : http://<YOUR DOMAIN>:8080/metrics
- Fluentd : http://<YOUR DOMAIN>:24231/metrics
注釈
Fluentd metrics are available from Krill Manager v0.2.2.
注釈
In cluster mode the per-node metrics (NGINX, Docker, O/S and Gluster) should be queried on the node you are interested in, Krill Manager does NOT aggregate cluster metrics for you.
ちなみに
Krill metrics can be queried on any cluster node, NGINX will fetch them from Krill on whichever cluster node the single Krill instance is running.
Visualisation¶
To visualise the monitoring endpoint metrics deploy your own Prometheus and Grafana servers, e.g. using these DigitalOcean Marketplace Apps:
- https://marketplace.digitalocean.com/apps/prometheus
- https://marketplace.digitalocean.com/apps/grafana
Alternatively, if you don't mind losing your monitoring and alerting if your server has problems, you could deploy Prometheus and Grafana on your Krill server like this.
Add stanzas like the following to the scrape_configs
section of the
prometheus.yml
file on the Prometheus server and restart Prometheus:
scrape_configs:
...
...
...
- job_name: 'krill'
static_configs:
- targets: ['<YOUR DOMAIN>:9657']
- job_name: 'nginx'
static_configs:
- targets: ['<YOUR DOMAIN>:9113']
Add http://<PROMETHEUS DOMAIN OR IP>:9090
as a datasource to Grafana.
- Then import Grafana Dashboards by ID, e.g.:
- https://grafana.com/grafana/dashboards/1860 (Node Exporter Full)
- https://grafana.com/grafana/dashboards/8951 (Docker Monitoring)
- https://grafana.com/grafana/dashboards/11199 (NGINX by nginxinc)
Alerting¶
Grafana can be configured to send notifications to a variety of destination types when alert conditions are met.