Simulate from a genesis file

[ValarDragon]

We should add functionality to run the simulator from a given genesis file. There is the problem of not knowing the private key to accounts / validators. This can be fixed by swapping every address / pubkey with a known privkey / pubkey / address pair. This would catch a decent class of issues that have high human-hour cost, such as game of stake upgrade 1's halt and upgrade 2's halt.

Alternatively if we are just doing message simulation, you don't even need the private keys. I think its overall simpler to swap out the private keys, and have the ability to do either msg or tx simulation. (Key swapping should take negligible time)

[rigelrozanski]

I think this is encompassed within #3026 ... duplicate?

[ValarDragon]

I don't think it is. AFAIU #3026 is about replaying an existing blockchain. This is about simulating from a genesis file where you know none of the private keys.

[rigelrozanski]

my mistake you're correct, they are distinct - however there are overlapping components, such as the private key "swapping" so to speak; also a common framework would be beneficial whether they are existing txs from a historical executed blockchain or generated from txs from the simulation. So yeah I think we should implement with this in mind

Additionally the combination of these two utilities may also be useful (imagine running known txs to a certain point and further simulation txs after)