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Empower Your Microservices with Istio Service M...
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Hossam Barakat
June 14, 2019
Technology
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Empower Your Microservices with Istio Service Mesh - NDC Oslo 2019
Hossam Barakat
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Transcript
Empower Your Microservices with Istio Service Mesh Hossam Barakat Lead
Consultant at Readify @hossambarakat_ | www.hossambarakat.net
@hossambarakat_ • Intro to Istio Service Mesh • Istio Architecture
• Traffic Routing • Reliability • Observability Agenda
@hossambarakat_ Monolith Service Service Service Service
@hossambarakat_ Monolith Container Engine Container Container Container Container Orchestration Engine
@hossambarakat_ Distributed Services Same Host Service A Service B Host
A Service A Host B Service B Network
@hossambarakat_
@hossambarakat_ • The network is reliable. • Latency is zero.
• Bandwidth is infinite. • The network is secure. • Topology doesn't change. • There is one administrator. • Transport cost is zero. • The network is homogeneous. Fallacies of distributed computing
@hossambarakat_ We can achieve that using application frameworks
@hossambarakat_ Using Application Level Frameworks Host A Service A Host
B Service B Network Service Discovery Retry Policies Service Discovery Retry Policies
@hossambarakat_ Let’s write this new service in Elixir!
None
@hossambarakat_ Host A Sidecar Proxy Sidecar Proxy Service A Host
B Service B Service Discovery Retry Policies Sidecar Proxy Service Discovery Retry Policies Network
@hossambarakat_ Enter Service Mesh
@hossambarakat_ Service Mesh Data Plane
@hossambarakat_ Service Mesh Control Plane Control Plane
@hossambarakat_ Istio
@hossambarakat_ Istio Architecture Service A Service B
@hossambarakat_ Istio Architecture Service A Proxy Service B Pilot Proxy
Mixer Citadel
@hossambarakat_ Istio Architecture Service A Proxy Service B Pilot Proxy
Mixer Citadel Control Plane
@hossambarakat_ Kubernetes
@hossambarakat_ Pods Pod
@hossambarakat_ Sidecar Pod
@hossambarakat_ Service 10.0.0.2 Pod B 10.0.0.3 Pod C IP: 10.0.0.30
DNS: myservice Service 10.0.0.1 Pod A
@hossambarakat_ Espresso Shop
@hossambarakat_ Espresso Shop
@hossambarakat_ Espresso Shop
@hossambarakat_ Espresso Shop Services Web Product Catalog Reviews
@hossambarakat_ Espresso Shop on Istio Web Product Catalog Reviews V1
Proxy Proxy Proxy Reviews V2 Proxy X
@hossambarakat_
@hossambarakat_ Traffic Routing
@hossambarakat_ • Envoy Proxy • Pilot Traffic Routing
@hossambarakat_ • Envoy is an open source edge and service
proxy, designed for cloud-native applications Envoy Proxy
@hossambarakat_ Pilot
@hossambarakat_ Request Routing Configuration Sidecar DestinationRule VirtualService Gateway ServiceEntry
@hossambarakat_ Routing Configurations Web Virtual Service Destination Rule Reviews V1
Reviews V2
@hossambarakat_
@hossambarakat_ Canary Deployment Web Proxy Reviews V1 Proxy Reviews V2
Proxy
@hossambarakat_
@hossambarakat_ User Role Based Routing Web Proxy Reviews V1 Proxy
Reviews V2 Proxy
@hossambarakat_
@hossambarakat_ Reliability
@hossambarakat_ • Timeout • Retry • Fault Injection • Circuit
breakers Reliability
@hossambarakat_ Timeout Web Proxy Reviews V1 Proxy
@hossambarakat_
@hossambarakat_ Fault Injection Web Proxy Reviews V1 Proxy
@hossambarakat_
@hossambarakat_ Circuit Breaker
@hossambarakat_ Observability
@hossambarakat_ • Distributed Tracing • Metrics • Success rates •
Request volumes • Request duration • Latency Observability
@hossambarakat_ Mixer
@hossambarakat_ Mixer Adapters https://istio.io/docs/reference/config/policy-and-telemetry/adapters/
@hossambarakat_
@hossambarakat_
@hossambarakat_ Summary
@hossambarakat_ • https://github.com/hossambarakat/EspressoShop • Learn Istio using Interactive Hands-on Scenarios
(Katacoda) • https://istio.io/docs/ Resources https://bit.ly/istio-ndc-oslo
@hossambarakat_ Questions?
Thanks Hossam Barakat @hossambarakat_ www.hossambarakat.net