Resilient Microservices with AKS

The slide deck of the presentation for Global Azure Bootcamp on 27th April 2019. The talk covers approaches to build resilient Microservices and deploying them to AKS. Along with code based approach with Polly, Istio Service Mesh is also covered during the session. Istio helps in adding features without making any code changes.

Transcript

1. Resilient Microservices with AKS Nilesh Gule @nileshgule | www.HandsOnArchitect.com Welcome to the Singapore
2. A BIG thank you to the 2019 Global Sponsors!
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. Don’t let one fault sink the whole ship
27. https://docs.microsoft.com/en-sg/azure/architecture/patterns/bulkhead
28. requests: memory: "64Mi" cpu: "250m" limits: memory: "128Mi" cpu: "1“
29. repeated retries likely to fail
30. https://docs.microsoft.com/en-sg/azure/architecture/patterns/circuit-breaker
31. .CircuitBreakerAsync(5, TimeSpan.FromSeconds(30)); .AddPolicyHandler(GetCircuitBreakerPolicy()
32. @EnableHystrixDashboard @EnableCircuitBreaker
33. circuitBreaker: simpleCb: maxConnections: 100 httpMaxRequests: 1000 httpMaxRequestsPerConnection: 10 httpConsecutiveErrors: 7 sleepWindow: 15m httpDetectionInterval: 5m Istio Cirtcuit Breaker
34. https://developers.redhat.com/blog/2017/05/16/it-takes-more-than-a-circuit-breaker-to-create-a-resilient-application/
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 https://github.com/NileshGule/ABC2019 https://www.slideshare.net/nileshgule/presentations https://speakerdeck.com/nileshgule/
40. $whoami { “name” : “Nilesh Gule”, “website” : “https://www.HandsOnArchitect.com", “github” : “https://github.com/NileshGule" “twitter” : “@nileshgule”, “linkedin” : “https://www.linkedin.com/in/nileshgule”, “email” : “nileshgule@gmail.com", “likes” : “Technical Evangelism, Cricket” }
41. Q&A