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, Istio Service Mesh is also covered during the session.

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