Distributed Tracing with Jaeger on Kubernetes

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Distributed Tracing with Jaeger on Kubernetes Onur Kasimlar, Lead Cloud Engineer at Posedio VldgWebDev Meetup 17.05.2023

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2 POSEDIO GMBH Company founded: • 2020 Locations: • Vienna • Vorarlberg Co-workers: • 17 Cloud experts

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3 SERVICES Cloud Platform Cloud-Native Consulting Data Platform Application Modernization Multicloud FinOps Automated self- service Platform Data Governance Big Data Data Accessibility Security and Governance Scalability & Cost optimization DevOps Security Review Cloud readiness Review Architecture Review

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AGENDA 1. Challenge Distributed Tracing 2. Solutions 3. Showcase Minikube 4.Architecture 5. Real World Example

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CHALLENGE DISTRIBUTED TRACING 1

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7 CHALLENGE DISTRIBUTED TRACING Example Architecture

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8 CHALLENGE DISTRIBUTED TRACING What happens if an Error occurs?

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9 CHALLENGE DISTRIBUTED TRACING What makes it difficult to find the error? • Error is not logged • Logs are not accessible • Request can’t be tracked • Error != Performance Issue • Where is the bottleneck • …..

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10 CHALLENGE DISTRIBUTED TRACING Solution: Monitoring of Systems • Logs: Textual records generated by software applications • Metrics: CPU, Memory, Error rates, … • Alerts: Notifications generated by monitoring systems • Dashboards: visual representation of monitoring data • Traces

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11 CHALLENGE DISTRIBUTED TRACING What is a Trace? • Capture execution flow • Request / Transaction path with time • End-to-end visibility

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12 CHALLENGE DISTRIBUTED TRACING Example Architecture

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SOLUTION 2

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14 SOLUTION What is a Trace-ID? • Often referred as X-Correlation-Id • Unique Identifier assigned to a trace • Correlate and track the flow of a request or transaction • HTTP-Header in case of HTTP-requests

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15 SOLUTION Where/When create a Trace-ID? • ASAP you have the possibility • Check Trace-Id available • (y) – use the existing one • (n) – create one and propagate it

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16 SOLUTION Source of error • Every component must stick to the rules • Every component = potential single point of failure • Solution: OpenTelemetry / Jaeger

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17 SOLUTION What is OpenTelemetry • Project under Cloud Native Foundation (CNCF) • Standardization of telemetry data • Telemetry data: logs, metrics, traces • APIs and SDKs to generate data • A lot of programming languages supported

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18 SOLUTION What is Jaeger • Tool for analyisis of storage and visualization of trace data • Uses OpenTelemetry data

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19 SOLUTION How does a Trace look like • A trace represents data / execution path through system • Acyclic graph of spans

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EXAMPLE IN MINIKUBE AND QUARKUS SERVICES 3

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ARCHITECTURE 4

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22 SOLUTION Architecture

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23 SOLUTION Architecture

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REAL WORLD EXAMPLE 5

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THANK YOU! POSEDIO GMBH +43 660 8484500 [email protected] Weyringergasse 1-3, 1040 Wien, Millenium Park 4, 6980 Lustenau www.posedio.com