domain-cloud-native

Design a Rust microservice for Kubernetes by applying domain constraints for 12-factor config, readiness and liveness probes, OpenTelemetry tracing, and statelessness. This ensures your service is observable, scalable, and resilient within cloud-native runtimes.

Stateless design for cloud-native Rust services means storing state externally rather than in-process. This approach ensures services can scale horizontally, handle graceful shutdowns, and restart reliably on Kubernetes without losing critical application data.

Implement graceful shutdown and observability in Rust by integrating tracing and metrics libraries like OpenTelemetry and Prometheus. This combination provides telemetry data and ensures in-flight requests complete safely during pod termination.

Yes, you can apply this approach to existing Rust services by refactoring configuration to 12-factor environment variables, adding health endpoints, and enforcing statelessness to align with cloud-native deployment requirements.

The best way to manage configuration for Rust apps on Kubernetes is using 12-factor environment-based configuration. This externalizes settings, allowing services to remain portable and environment-agnostic across different cloud-native deployments.

Kubernetes readiness probes may fail for Rust services if health endpoints are missing or state is stored locally, preventing proper scaling. Adding dedicated health checks and adopting stateless design ensures probes accurately reflect service readiness.