Add support for Deneb

[realbigsean]

Resolves #3625

Devnet V3 related notes [deprecated]

• install lighthouse on this branch by runnnig make
  • Note: docker images for this branch available at sigp/lighthouse:eip4844-amd64 (portable) and sigp/lighthouse:eip4844-amd64-modern (non-portable). Currently working on adding aarch64 images, not available yet
• run:
  • lighthouse bn --network eip4844 --execution-jwt <jwtsecret_path> --execution-endpoint http://localhost:8551 --trusted-setup-file <trusted_setup_file_path> --http
• The trustued-setup-file to use: https://github.com/sigp/lighthouse/blob/eip4844/scripts/local_testnet/trusted_setup.txt

Devnet V4 related notes

• build the eip-4844 branch of this geth fork: https://github.com/mdehoog/go-ethereum
• wget https://config.eip4844-devnet-4.ethpandaops.io/el/genesis.json
• geth init --datadir geth_data genesis.json
• run geth

geth --ipcdisable --http --http.api="eth,web3,net,debug" --syncmode=full --bootnodes "enode://8488a57c323d5e5bef1c40c5cb2330cb0bd75d900afad5e7f50a47ecc1ae7683fb664f509908c6b978633b9af75788e943f26e9b64989504d189ae7b3278ede3@161.35.91.184:30303" --verbosity 4 --datadir geth_data --networkid 4844001004

• run lighthouse

lighthouse bn --purge-db --network eip4844 --execution-endpoint http://localhost:8551 --execution-jwt geth_data/geth/jwtsecret --debug-level trace --http --disable-optimistic-finalized-sync --libp2p-addresses "/ip4/64.225.74.231/tcp/9000/p2p/16Uiu2HAm4uoHpnkrfLncYRiKjWTtUfKUazH6afQgPtBuNpGDSJ7M"

Local testnet instructions

GNU grep and GNU sed are required

• install lighthouse
  • make
• install lcli
  • make install-lcli
• install this geth commit: mdehoog/go-ethereum@2bd3a3c
• update the geth_binary location here: https://github.com/sigp/lighthouse/blob/eip4844/scripts/local_testnet/vars.env#L1
• run cd scripts/local_testnet
• run ./start_local_testnet.sh -d debug genesis.json
• all logs will be in ~/.lighthouse/local-testnet/testnet
• stop the network with ./stop_local_testnet.sh

Note: By default, this testnet starts at Bellatrix, forks to Capella at epoch 1 (slot 32) and forks to EIP4844 at epoch 2 (slot 64).

Update 12/28/22: "withdrawals" feature is no longer necessary as it's now enabled by default

[jimmygchen]

@realbigsean maybe worth adding json_rpc_snoop installation to instructions as well:

- install json_rpc_snoop: https://github.com/ethDreamer/json_rpc_snoop

and your description:
> this is a proxy between lighthouse and geth that just prints out the json being sent back and forth...it's very useful for debugging CL <> EL compatibility

sorry, just realised you've already removed it :)

[jimmygchen]

^ this is added twice

[realbigsean]

👍

[realbigsean]

Closing in favor of #4054