Navigating the Seas of Transformation: Migrating from EC2 to Kubernetes
summary
Migrates a SaaS from 1800 EC2 instances into Kubernetes over a nine‑month 2019 effort, converting to Linux containers, porting to .NET Core (about 10–15% code touched), and ending with ~1,000 customer instances across eight clusters in three regions (nodes ~20 vCPU / 160 GB, 3–6 nodes). Uses per‑customer Azure SQL databases and Azure file shares, short‑lived Windows dynamic workers for Powershell, and a custom cloud portal for automation; it works but surfaces surprising post‑migration issues and requires a dedicated cloud platform team.
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chapters (11)
- 0:00Introduction and background
- 3:55Cost challenges with EC2
- 6:00Considering Kubernetes options
- 9:08Migrating to Linux containers
- 14:24Building the plane while flying
- 16:12Managed services vs self-hosting
- 19:04Octopus Cloud V2 architecture
- 20:35Managing clusters at scale
- 27:38Tooling for operational efficiency
- 29:02Key lessons learned
- 30:49Q&A session
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