Discovery Performance Issues on large clab topologies #62
Description
Some users with more demanding containerlab configurations run into discovery timeouts (30s). Apart from twisting timeout knobs, there is on one hand a potential performance problem with discovering port forwarding from large nftable rulesets, on another hand a needlessly detailed discovery when finding capture targets.
Thus, this issue tackles performance improvement of discovery in the specific context of capture targets.
- for the
/mobysharkAPI endpoint use trimmed-down discovery, instead of the default exhaustive discovery. - provide configurable (internal) discovery using discovery options in the same vein as lxkns does.
- provide scan configuration to NewNetworkNamespaces
- opting out (skipping) port forwarding discovery