peer2peer networking coming soon

[robinboening]

Mid November a big PR including p2p networking features got merged into cardano-node master and is now being tested. Even though it's not released yet I'd like to bring this to our attention and open a discussion about how to approach it and what changes will be required on our side.

The changes that caught my eye:

• The PR seems to allow running the node the old way, or to opt-in to the new p2p mode.

  non-p2p: the only officially supported version p2p: unverified and unsupported p2p mode

• A new topo file format for p2p, but I don't know if we need to care much as I believe they will probably be fully maintained by the node.

  a new topology file format for p2p nodes

• It also seem to allow reloading the topology without killing the process

  a mechanism to reload topology file on SIGHUP signal

I haven't seen any changes related to prometheus exports, but I am wondering if there will be some coming in the future.

[robinboening]

Some people are playing around with p2p on mainnet. So I am just leaving this here for reference: https://forum.cardano.org/t/cardano-node-1-33-0-in-p2p-mode-on-mainnet/91353/8