Resilient Microservices with AKS

Slide deck of the presentation Microsoft Ignite Tour Singapore on 16th January. The talk covers approaches to build resilient Microservices and deploying them to AKS. Along with code based approach with Polly & Hystrix libraries, Istio Service Mesh is also covered during the session.

Transcript

2. .NET Conf SG ‘18 www.HandsOnArchitect.com
4. Autonomous work together
5. https://samnewman.io/talks/principles-of-microservices/
6. https://microservices.io/patterns/microservices.html
7. https://github.com/dotnet-architecture/eShopOnContainers
8. https://github.com/NileshGule/AKS-learning-series
10. Software infrastructure layer for controlling and monitoring internal, service-to- service traffic in Microservice application
12. No code changes
14. Recover from failure continue to function
16. handle transient failures
17. https://docs.microsoft.com/en-sg/azure/architecture/patterns/retry
18. .HandleTransientHttpError() .OrResult(msg => msg.StatusCode == System.Net.HttpStatusCode.NotFound) .WaitAndRetryAsync(6, retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt))); .AddPolicyHandler(GetRetryPolicy());
19. http://goupaz.com/docs/reference/config/traffic-rules/routing-rules.html#httpretry httpReqRetries: simpleRetry: attempts: 3 perTryTimeout: 2s
20. Don’t wait forever
22. Policy timeoutPolicy = Policy.TimeoutAsync(30, TimeoutStrategy.Optimistic); await timeoutPolicy .ExecuteAsync(
23. https://istio.io/docs/tasks/traffic-management/request-timeouts/ timeout: 0.5s
24. Provide graceful degradation in event of failure
26. @Override protected String getFallback() { return "Hello Failure " + name + "!"; }
27. Don’t let one fault sink the whole ship
28. https://docs.microsoft.com/en-sg/azure/architecture/patterns/bulkhead
29. requests: memory: "64Mi" cpu: "250m" limits: memory: "128Mi" cpu: "1“
30. repeated retries likely to fail
31. https://docs.microsoft.com/en-sg/azure/architecture/patterns/circuit-breaker
32. .CircuitBreakerAsync(5, TimeSpan.FromSeconds(30)); .AddPolicyHandler(GetCircuitBreakerPolicy()
33. @EnableHystrixDashboard @EnableCircuitBreaker
34. circuitBreaker: simpleCb: maxConnections: 100 httpMaxRequests: 1000 httpMaxRequestsPerConnection: 10 httpConsecutiveErrors: 7 sleepWindow: 15m httpDetectionInterval: 5m Istio Cirtcuit Breaker
36. eShopOnContainers Resiliency Patterns 8 fallacies of Distributed Computing 12 factor apps Polly Istio Istio Service Mesh Hystrix patterns History of Service Mesh Rise of Service Mesh Architecture
39. Thank you very much Code with Passion and Strive for Excellence
40. Q&A