AWS Guide Simplifies Blazor Server Deployment on Fargate
The new tutorial outlines how to manage .NET 10 session affinity and state persistence on serverless container infrastructure.
Updated on Oct. 28, 2026 in Data Centers
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AWS has published a technical deployment guide for hosting .NET 10 Blazor Server applications on Amazon ECS using Fargate. The configuration addresses the stateful requirements of the Blazor framework by utilizing session affinity through load balancer settings.
Why it matters
Blazor Server architecture relies on persistent SignalR WebSocket connections to maintain state in server memory, making standard stateless container deployment challenging. This guide provides an architecture pattern to manage session affinity and data protection for production-ready .NET workloads on serverless infrastructure.
The architecture relies on ASP.NET Core Data Protection keys stored in AWS Systems Manager Parameter Store to ensure session consistency. It utilizes load-balancer cookie stickiness to maintain persistent connections across multiple Availability Zones.
The players
Amazon Web Services
A subsidiary of Amazon providing a comprehensive suite of cloud computing services including ECS, Fargate, and RDS.
Microsoft
The technology corporation responsible for developing the .NET framework and the Blazor application model.
The details
Blazor Server maintains application state directly in server memory, meaning every browser request must hit the same container instance to prevent session errors. To solve this, the tutorial leverages Application Load Balancer stickiness to ensure consistent routing, paired with SignalR WebSocket keep-alive intervals to sustain the connection. For security and durability, the design offloads persistent state storage to Amazon RDS for PostgreSQL or Amazon ElastiCache for Redis while using the AWS Cloud Development Kit to orchestrate the infrastructure.
Timeline
October 27, 2026: AWS architects published the deployment tutorial.
The Tech Race
This guide simplifies the migration of stateful .NET applications into modern container-orchestrated environments. It follows a wider industry push to make serverless infrastructure more compatible with legacy-adjacent web frameworks like Blazor Server.
Developers using .NET 10 can now follow this blueprint to transition stateful apps to Fargate without needing custom routing logic. The setup requires initial configuration of the AWS Cloud Development Kit and integration with existing RDS or ElastiCache services for long-term state persistence.
The takeaway
This guide formalizes the necessary infrastructure requirements to keep stateful web sessions alive in a distributed serverless environment. Watch for further AWS library updates to the Cloud Development Kit that may automate these session affinity configurations in future releases.
Further reading
For broader technical standards in high-availability infrastructure, visit Data Centers.
Source note: This article includes information reported by Visual Studio Magazine.
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