Generating infrastructure architecture overviews/network diagrams for sysdumps

[PhilipSchmid]

Proposal / RFE

It would be amazing for sysdump analysis to get a generated infrastructure architecture overview/network diagram (graphviz?).

Is your feature request related to a problem? Not directly, but it often already takes quite some time to gain a good overview of infrastructure from a sysdump before one is actually able to start digging into finding the actual Cilium issue.

Describe the solution you'd like Something like this would make it easier and faster to understand the infrastructure context before digging into the actual Cilium issue. In my imagination, a generated network diagram could include information like this:

• Kubernetes Nodes
  • Name
  • Node IP
  • L2 of the Nodes
  • Region / AZ (if present)
  • Perhaps the node gateway IP as an additional "router" node in the L2?
• Cilium / Envoy Pod per Node (so it's directly clear which Cilium Pod runs on which Node)
  • Cilium Internal IP
  • Cilium Health IP
• If present:
  • Cilium BGP Peers with IPs
  • Cilium Ingress / GatewayAPI LB Service IP
  • Etc.

This diagram could either be generated during the cilium sysdump sub-command or after a sysdump has already been taken, and we use a separate sub-command to achieve this.

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