eBPF in Microservices Observability at eBPF Day

Transcript

1. @rakyll eBPF in Microservices Observability Jaana Dogan Principal Engineer, AWS jbd@amazon.com
2. @rakyll About me • Not a Linux developer. • Working on monitoring, observability and performance. • Multi-tenancy and microservices focus.
3. @rakyll
4. @rakyll How does eBPF work? process JIT compiler Verifier Sockets TCP/IP BPF Maps code (accessible from the user space)
5. @rakyll Where can eBPF hook into? - Kernel and user functions - System calls - Network events - Kernel tracepoints
6. @rakyll Challenges in microservices
7. @rakyll Challenges in microservices We don’t just monitor VMs or processes. We monitor critical paths.
8. @rakyll What’s next? service service database storage service
9. @rakyll What’s next? service service database storage service
10. @rakyll Challenges in microservices Context matters. Downstream stack don’t have context.
11. @rakyll What’s next? process Linux kernel process process M:N Problem
12. @rakyll What’s next? process Linux kernel process process RPCs M:N Problem
13. @rakyll What’s next? process Linux kernel process process RPCs container container M:N Problem
14. @rakyll What’s next? process Linux kernel process process RPCs container container Kubernetes pod, ECS task M:N Problem
15. @rakyll Challenges in microservices First, we debug the path of the request. We debug functions or syscalls secondarily.
16. @rakyll Challenges in microservices Too much data. Need runtime controls to modify the collection.
17. @rakyll Challenges in microservices Instrumentation is a two-year roadmap. Data is not consistent.
18. @rakyll Recap Out of the box instrumentation is critical. Networking observability is essential. Extensibility in runtime is needed. Decoration and enrichment is needed.
19. @rakyll How does eBPF help?
20. @rakyll Network Diagnostics TCP, UDP, HTTP, gRPC metrics Inspect protocols (MySQL, Postgres, ...)
21. @rakyll Network Diagnostics TCP, UDP, HTTP, gRPC metrics Inspect protocols (MySQL, Postgres, ...)
22. @rakyll Service Maps
23. @rakyll Distributed Traces Automatically create trace span if a trace header is present. Your job is to generate and propagate the header. GET /users HTTP/1.1 Host: users.service Accept-Encoding: gzip, deflate Connection: Keep-Alive Traceparent: 00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01
24. @rakyll Continuous Profiling
25. @rakyll Extensibility
26. @rakyll Decorating with Context eBPF agent process JIT compiler Verifier Sockets TCP/IP BPF Maps API Server
27. @rakyll Decorating with Context
28. @rakyll Several projects... - Cillium/Hubble - Pixie - Flowmill - Prodfiler - Parca
29. @rakyll What’s next? - High level language? - More platforms supporting eBPF? - Reusable eBPF event processors? - Signed programs?
30. @rakyll Thank you Jaana Dogan jbd@amazon.com
31. @rakyll After party? Pixie KubeCon Happy Hour hosted by New Relic Tomorrow, 8:30 PM PDT RSVP: pixiehh.eventbrite.com
32. @rakyll Runtime Extensibility eBPF agent process JIT compiler Verifier Sockets TCP/IP BPF Maps code