Sail in the Cloud - An intro to Istio
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This document contains summaries from a presentation about microservices and service mesh. It discusses the evolution from monolithic applications to modular applications to microservices. Key concepts covered include microservices owning their own data, multiple entry points, and distributed computing challenges. The presentation introduces Istio as a service mesh that can provide capabilities like discovery, load balancing and resiliency to microservices externally through sidecars. It provides examples of using Istio on Kubernetes to visualize and route traffic between services.
Sail in the Cloud - An intro to Istio
- 1. @alexsotob#VoxxedBristol Sail in the Cloud Alex Soto Red Hat
- 2. @alexsotob2 Alex Soto Red Hat Engineer www.lordofthejars.com @alexsotob Who Am I? ctwvxddaysbristol18
- 11. @alexsotob11 Microservices Own Their Data
- 12. @alexsotob12 Multiple Points of Entry
- 13. @alexsotob13 Microservices == Distributed Computing OS JVM Service A OS JVM Service B OS JVM Service C
- 14. @alexsotob14 ▪ The network is reliable ▪ Latency is zero ▪ Bandwidth is infinite https://en.wikipedia.org/wiki/Fallacies_of_distributed_computing ▪ Topology does not change ▪ There is one administrator ▪ Transport cost is zero ▪ The network is homogeneous Fallacies of Distributed Computing
- 15. @alexsotob15 Failure of a Service
- 18. @alexsotob18
- 20. @alexsotob20 Pods A group of whales is commonly referred to as a pod and a pod usually consists a group of whales that have bonded together either because of biological reasons or through friendships developed between two or more whales. In many cases a typical whale pod consists of anywhere from 2 to 30 whales or more.* *http://www.whalefacts.org/what-is-a-group-of-whales-called/
- 21. @alexsotob21 Istio — ‘Sail’ (Kubernetes — the ‘Helmsman’)
- 22. @alexsotob22 But wow! Am I so ready for this change. — Anna “
- 23. @alexsotob23 Microservices’ilities + OpenShift + Istio MyService Monitoring Tracing API Discovery Invocation Resilience Pipeline Authentication Logging Elasticity
- 24. @alexsotob24 Container JVM Service B Discovery Load-balancer Resiliency Metrics Tracing Container JVM Service A Discovery Load-balancer Resiliency Metrics Tracing Container JVM Service C Discovery Load-balancer Resiliency Metrics Tracing Before Istio Microservices Embedding Capabilities
- 25. @alexsotob25 Okay, can I just, say something crazy? — Anna “
- 26. @alexsotob26 Pod Container JVM Service A Sidecar Container Pod Container JVM Service C Sidecar Container After Istio Pod Container JVM Service B Sidecar Container Microservices Externalizing Capabilities The sidecar intercepts all network traffic
- 27. @alexsotob27 Istio Concepts Destination Rule Virtual Service Service Entry Gateway ✓ Circuit Breaker ✓ Load Balancers ✓ TLS settings ✓ Defining subsets ✓ Virtual services, not in registry ✓ Describes mapping between destinations ✓ Configure traffic to external services of the mesh ✓ Use with Detination Rule & Virtual Service ✓ Load balancer at the edge of the mesh ✓ Use with Virtual Service
- 28. @alexsotob28
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- 32. @alexsotob32 It's time to see what I can do To test the limits and break through — Elsa “
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- 37. @alexsotob37 I'm never going back, the past is in the past — Elsa “
- 38. @alexsotob38 Polyglot Microservices Platforms circa 2018
- 39. @alexsotob39 Digital Darwinism Re-Org to DevOps Self-Service, On-Demand. Elastic Infrastructure as Code Automation Puppet, Chef, Ansible, Kubernetes CI & CD Deployment Pipeline Advanced Deployment Techniques Microservices