20 year old cloud native apps with .NET
summary
Twenty‑year‑old .NET apps compile and run on modern runtimes: legacy site images and XML “database” (≈6,000 files) move from a 30 GB physical disk to containers, the blog becomes DosBlog.Core on .NET 8, and the stack runs on Linux and a Raspberry Pi. Migration uses Net Upgrade Assistant, DNS + Azure Front Door as a reverse proxy, multi‑stage Docker builds, Playwright for headless tests, and chiseled containers with tree‑trimming. Result: ~15 sites (2M monthly pageviews) for ~$41/month.
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chapters (10)
- 0:00Introduction
- 1:16Modernize .NET apps intentionally
- 5:4620-year-old server under desk
- 15:20Legacy .NET modernization strategy
- 28:03Cross-platform .NET flexibility
- 38:45Porting code to Linux
- 43:45Testing and Docker for modernization
- 49:04Chiseled containers and tree trimming
- 54:28Automated testing with Azure DevOps
- 58:46Final thoughts and cost savings
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