Support the butterfly testing network

[lemmih]

Issue summary

It appears that the butterfly network is here to stay and will be used to test new features even before they hit calibnet. We should add support for syncing to the butterfly network.

Task summary

• Find the bootstrap peers
• Find the version schedule
• Find the default policy schedule

Acceptance Criteria

• sync to butterflynet from a snapshot
• generate butterflynet snapshots

Other information and links

The required information might only exist in the source code of Lotus.

[lemmih]

Oh, this is a dupe of #1440

[elmattic]

We will probably not join butterflynet since it's (again) a private "dev-network" for lotus-only nodes.

Joining Interop network will make more sense for us. As its name stands it's used for cross implementation testing (so a mix of lotus/venus/forest nodes).

[lemmih]

I can't seem to find any documentation about the interop network.

[elmattic]

I can't seem to find any documentation about the interop network.

Same for me. I can only find documentation for butterflynet.
https://lotus.filecoin.io/kb/butterfly-network/

[lemmih]

Okay, let's close this issue and only support mainnet and calibnet. It does make me a little sad to see butterflynet on https://status.filecoin.io knowing Forest isn't allowed to join but I can learn to live with it. :)

[lemmih]

We've been invited into the butterfly network. This will let us test the network upgrade before it goes live on calibnet.

Parameters: https://github.com/filecoin-project/lotus/blob/release/v1.18.0/build/params_butterfly.go