eBPF and Kubernetes

Scaling Kubernetes
- There are monitoring and logging systems, but its tough to monitor everything accurately in a distributed environment
- The Kubernetes cluster does not expose kernel level monitoring data
- Process/Service Specific Monitoring
  - Since Kubernetes Service is essentially a process run by the linux Kernel
  - With eBPF it is easy to monitor a specific process, so teams can monitor a process running across all of their infrastructure nodes.
  - More granular than logs
  - No special instrumentation needed
  - unlike the sidecar pattern eBPF install a very small overhead
Challenges

There is no easy way to install eBPF on all nodes of the cluster, orchestration is a challenge, they can use Cilium like tools to get more visibility into their cluster though.

References:
- https://searchitoperations.techtarget.com/answer/Why-and-how-to-use-eBPF-for-Kubernetes-scaling

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