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How to Gain Insights from Istio by Leveraging Tools Like Jaeger, Prometheus and CortexCNCF WEBINAR SERIES
Neeraj PoddarPlatform Lead
© 2018 Cloud Native Computing Foundation2
Service A
Container 1
Microservices Without a Service Mesh
Flask
OpenTracing Flask
Kingpin
Lemur
Open SSL 110d
Python
Service B
Container 1
http.createServer
Jaeger
Zoologist
Express
Open SSL 102l
Node.js
Service C
Container 1
Spring
OpenTracing Spring
Disco-java
Ribbon
Open SSL 110f
Java
© 2018 Cloud Native Computing Foundation3
Service A
Container 1
Microservices With a Service Mesh
Flask
Service Mesh
Python
Service B
Container 1
http.createServer
Service Mesh
Node.js
Service C
Container 1
Spring
Service Mesh
Java
© 2018 Cloud Native Computing Foundation4
Service Mesh Architectures
© 2018 Cloud Native Computing Foundation5
Service B Service C
Container 2 Container 2
Service A
Container 2
Container 1
Microservices with Istio
Flask
Python
Container 1
http.createServer
Node.js
Container 1
Spring
Java
Istio Control Plane
Config data to EnvoysPolicy,quota,telemetry
TLS certs to Envoys Monitors K8s for new pods to inject Envoy
EnvoyEnvoyEnvoy
Mixer Citadel Sidecar InjectorPilot
© 2018 Cloud Native Computing Foundation6
Istio Features
A bundling of capabilities
• Service discovery• Load balancing• Advanced traffic management• Enhanced security• Policy• Tracing• Metrics
© 2018 Cloud Native Computing Foundation7
Benefits of Tracing
Service dependency analysis
Track requests across multiple microservices
Identify performance bottlenecks
© 2018 Cloud Native Computing Foundation8
Tracing with Istio
• Automatic tracing of all network requests• Context handling• Asynchronous span reporting
– Start and end times
– Source & destination service– HTTP headers
• Application header propagation• Multiple backend integrations
– Zipkin– Jaeger
Distributed Tracing with Istio in AWSTracing gRPC with Istio
© 2018 Cloud Native Computing Foundation9
Jaeger
• OpenTracing compatible API• Flexible & scalable architecture• Multiple storage backends
– Cassandra– Elasticsearch
• Advanced sampling• Accepts Zipkin spans• CNCF project & active OS community
• Great UI
© 2018 Cloud Native Computing Foundation10
Jaeger UI
• Jaeger has gained the most traction and is what we use– CNCF project– Thriving community– Great UI
© 2018 Cloud Native Computing Foundation11
Benefits of Metrics
Monitoring & alerting
Debugging & fault analysis
Historical view
© 2018 Cloud Native Computing Foundation12
Metrics with Istio
• Envoy stats– Request Pending– Connection bytes buffered– SSL failures
• Mixer service stats– Request latency– Request counts
• Custom metrics• Telemetry monitoring options
– StatsD– Stackdriver– Prometheus
Envoy Sta ts O verv iew
© 2018 Cloud Native Computing Foundation13
Prometheus
• Pull model• Flexible query API• Efficient storage• Dashboard integrations
– Grafana• Exporters
– Prom etheus In teg ra tions
• CNCF project & strong OS community
© 2018 Cloud Native Computing Foundation14
Enhancing Prometheus with Cortex
• Long term durable storage– AWS DynamoDB– Bigtable– Cassandra
• Scalable Prometheus query API• Multi-tenancy• Easy to manage• Intent to add as CNCF project
© 2018 Cloud Native Computing Foundation15
More on Getting the Most from Istio
Istio 0.8 Release• Stability & Scalability • Envoy v2• Istio v1alpha3
We are active users of Istio and are happy to talk in greater depthPlease feel free to reach out: • [email protected]• http://aspenmesh.io/blog
v0.8 release
Questions
Thank You
