Introduction Prometheus

This slide was presented at "CloudNative Days Tokyo Meetup w/ Melanie Cebula" held on July 20, 2019.
It's 5 minutes Lightning Talks.

CloudNative Days Tokyo Meetup w/ Melanie Cebula - connpass
https://wantedly.connpass.com/event/135968/

Transcript

1. Introduction Prometheus Takuma Nakagame, SAKURA internet Inc.
2. Takuma Nakagame @kameneko1004 • SAKURA internet Inc. ◦ Cloud Service Provider • IT infrastructure engineer • Evangelist • LIKE ◦ Prometheus ◦ FreeNAS
3. What is Prometheus?
4. What is Prometheus？ • A Monitoring system developed by the engineers of SoundCloud • Recording real-time metrics in a time series database build using a Pull model • Automatic discovery of their targets by ServiceDiscovery • Written in Golang
5. Dream Hack Monitoring with Prometheus • 10,000 computers • 500 swtiches Monitoring DreamHack - The World's Largest Digital Festival | PromCon 2016 https://promcon.io/2016-berlin/talks/monitoring-dreamhack-the-worlds-largest-digital-festival/
6. Prometheus Architecture
8. What ?
9. The minimum essential componets to use Prometheus
10. • Prometheus Server • Exporter • Service Discovery • PromQL
11. • Collecting the metrics from its targes • Filtering its metrics by PromQL ◦ WebGUI • Crating Alerts Prometheus Server
12. Exporter • Monitoring Agent • Expanding its metrics by HTTP and periodically pull these to show • So-called Web server for just hitting API
13. Exporter Exporters by their targets • Server : NodeExporter • MySQL : MySQL Server Exporter • Nginx : NGINX Exporter • Apache : Apache Exporter • and more!
14. Service Discovery Automatic target discovery • Kubernetes • AWS EC2 • GCP GCE • OpenStack • Azure
15. PromQL • Prometheus Query Language • Filtering metrics • Defining Alert • WebGUI • API • Grafana
16. An Example of PromQL http_requests_total Total number of requests in http http_requests_total{pod_name=”nginx1”} Total number of requests of POD ‘nginx1’ in http sum(http_requests_total) Sum of total requests in http
17. Run Prometheus
18. Run Prometheus Step 1. Binary download 2. Unarchive 3. Run!
19. Download Binary https://github.com/prometheus/prometheus/releases $ wget https://github.com/prometheus/prometheus/releases/download/v2.11.1/prometheus-2.11.1.linux-amd64.tar.gz
20. Unarchive $ tar -xvf prometheus-2.9.2.linux-amd64.tar.gz
21. Run $ cd prometheus-2.9.2.linux-amd64/ $ ./prometheus
22. Run $ cd prometheus-2.9.2.linux-amd64/ $ ./prometheus FINISH!
23. Takeaways
24. 3 Takeaways • Automatic target discovery • Plenty of Exporters • Simple