Sequencer network upgrade

[szynwelski]

The purpose of the task is to test the migration of the application so that we can perform upgrades with the version containing changes that affect consensus. The tool that supports such migration is Cosmovisor.

As part of the task, we want to:

• set the gov module parameters appropriately:
  • min_deposit so that validators have the appropriate funds,
  • expedited_voting_period for 2 minutes so that in case of urgent updates they can be carried out quickly,
• write a script that will perform the update, specifically:
  • will upload a new docker image with a new binary,
  • on behalf of one of the validators, submit a proposal for voting,
  • will vote on behalf of all validators.

Document with instructions on how to upgrade: upgrades.pdf

[szynwelski]

The expedited_voting_period parameter will be introduced with version 0.50 of the Cosmos SDK. So for now we will set voting_period to 2 minutes, then increase it again, and set a short time for expedited_voting_period.