Support scale testing framework for network policies

[jayunit100]

Describe the problem/challenge you have

Netpol framework is hardcoded to a/b/c x/y/z

Describe the solution you'd like

Would like to test larger scales of , for example, 30 pods per node. and possibly use

• fuzz testing to ensure breadth of coverage : generate policy and back calculate expectations
• psuedo-random verification for performance: reducing probe test coverage (so that we dont wind up sending out 10000s of probes in a large cluster.)

Anything else you would like to add?

discussed in antrea community meeting with @antoninbas and others.

cc @jianjuns can we use this to implement #224 ? Would be cool to merge streams

[jianjuns]

cc @jianjuns can we use this to implement #224 ? Would be cool to merge streams

Would like @tnqn and @weiqiangt to comment too, as they worked on our current scale tests. In general I would agree always good to share the framework for tests. But #224 created by me also includes some simulation (of Nodes and Pods) part.

[github-actions]

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