Migrating a stateful .NET app from Azure VMs to Azure Container Apps without dropping a single request — including SQL Server Always On AG failover — is exactly the kind of scenario senior interviewers throw at platform engineers.
You'll learn:
- How to containerize a stateful .NET app and handle session/state externalization before cutover
- Azure Container Apps environment setup: managed environments, Dapr sidecars, and ingress configuration for gradual traffic shifting
- SQL Server Always On Availability Group failover patterns — listener routing, read-scale replicas, and avoiding split-brain during migration
- Blue/green and weighted traffic strategies in Azure Container Apps to achieve zero-downtime cutover
- Common gotchas: persistent volume claims, connection string management with Key Vault references, and health probe tuning
Keywords: Azure Container Apps migration, SQL Server Always On failover, zero downtime .NET containerization, stateful app Azure Kubernetes migration, platform engineering interview
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