Deploying ASP.NET Core APIs in Kubernetes requires careful configuration of resources, thread pools, and networking.
1. Optimizing the .NET Thread Pool
In container environments, the .NET runtime dynamically queries CPU allocations. Set environment variables to configure minimum thread counts, preventing startup connection latency:
env:
- name: COMPlus_ThreadPool_MinThreads
value: "100"
2. Service Communication via gRPC
For internal microservice calls, replace REST HTTP APIs with gRPC to leverage HTTP/2 multiplexing, binary payload serialization, and compiled schemas.
3. Namespace Isolation & Network Policies
Secure your cluster by isolating workloads into namespaces and applying strict network policies that only allow communication between authorized services.