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Selenium in Kubernetes: lessons learned
- 1. Selenium in Kubernetes:lessons learned by Ivan Krutov
- 2. About me Java &Golang developer Devops Big Selenium cluster
- 3. Big Selenium Cluster TypicalSelenium Grid 50 browsers 10000 sessions / day 1 data center 5 rps 500 Kbit/s Sometimes down My cluster 5000+ browsers 2.5M sessions / day 5 data centers 4000 rps > 2 Gbit/s 24/7/365
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- 7. Stone Age (10years ago)
- 8. Middle Ages (5years ago)
- 9. Modern History (3years ago)
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- 11. Getting Kubernetes cluster MinikubeCloudDocker Manually
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- 15. Selenium Grid inKubernetes Node 1 Node 2 Hub Node
- 16. Selenium launcher inKubernetes Selenium API ContainerPod Kubernetes API
- 17. Why Selenoid isnot suitable Node 1 Node 2
- 18. Fault-tolerance in Kubernetes ServiceIngress(L7) LoadBalancer (L3)
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- 20. Stateful Selenium fault-tolerance SelenographSelenium Grid 4 WebDriverGrid
- 21. Stateful Selenium fault-tolerance Databasesmaintenance is complicated Not every database can live in Kubernetes Databases go down under Selenium load
- 22. Stateless Selenium fault-tolerance Service POST/session/<id>/url GET /session/<id>/screenshot
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- 24. Original session ID: e0dfdda0-1786-4e8f-987b-29a61f5c165e md5(‘http://example.com:4444’): 798744d2b7036ba36c4ea285272bcd48 Extendedsession ID: 798744d2b7036ba36c4ea285272bcd48e0dfdda0- 1786-4e8f-987b-29a61f5c165e Ggr session ID magic
- 25. Moon generated hostnames firefox-73-0-<uuid> firefox-73-0-<uuid>
- 26. Artifact storage inKubernetes Container 1 Container 2 Volume
- 27. S3 artifact storage Data Replica2 S3 SLB Replica 1
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- 29. Kubernetes makes Seleniumcheaper
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