Tracking: Dynamic Validator Set

[jenpaff]

Definition of Done

We can add validators to our existing validator set.

Known Limitations:

• epoch_length needs to tweaked since adding a new validator involves coordination w/ all the other validators (easy if we're the only validating party)
• we should limit the number of validators joining per epochs

Testing

Happy path test

• 6 validator set with epoch_length = 120
• Pick a random node from the set and remove it
• Check metrics to verify that the participants went down by 1
• Pick a random node from the set and add it
• Check metrics to verify that the participants went up by 1
• Check more granularly: DKG ceremony should have the expected number of dealers and players

Edge cases