eigenda-orbit-precompile-setup-script

Instructions

1. Compile the precompile nitro-node image

git clone https://github.com/Fairblock/nitro-eigenda-precompile
cd nitro-eigenda-precompile
git submodule update --init --recursive --force

Execute the following command to generate go abi file in the nitro/solgen directory:

make contracts

Compile the docker image:

make docker

Get the WASM module root:

docker run --rm --name replay-binary-extractor --entrypoint sleep nitro-node-dev infinity
docker cp replay-binary-extractor:/home/user/target/machines/latest/ extracted-replay-binary
docker stop replay-binary-extractor
cat extracted-replay-binary/latest/module-root.txt

Create a directory based on this hash, copy machine.wavm.br, module-root.txt, replay.wasm, and until-host-io-state.bin files from the extracted-replay-binary directory to the newly created directory:

mkdir -p target/machines/$(cat extracted-replay-binary/latest/module-root.txt)
cp extracted-replay-binary/latest/* target/machines/$(cat extracted-replay-binary/latest/module-root.txt)

Edit the Dockerfile file in the root of the folder, and after all the RUN ./download-machine.sh ... lines, add:

COPY target/machines/<wasm module root> <wasm module root>
RUN ln -sfT <wasm module root> latest

Replace each with the WASM module root you got earlier.

Recompile docker image:

make docker

2. Clone the eigenda-orbit-precompile-setup-script repository and install dependency

git clone https://github.com/Fairblock/eigenda-orbit-precompile-setup-script
cd eigenda-orbit-precompile-setup-script
yarn install

3. Deploy contracts and obtain the configuration file

According to instructions in the website https://orbit.eigenda.xyz to deploy contracts and obtain nodeConfig.json and orbitSetupScriptConfig.json configuration file. Then place the two files in the config directory of the eigenda-orbit-precompile-setup-script

4. Get L1 RPC and config it in the config files

You can use a rpc from rpc providers or deploy a L1 node and replace them with your rpc in the two files:

• nodeConfig.json

{
   ...
   "parent-chain": {
    "connection": {
      "url": "<YourRPC>"
    },
    "blob-client": {
      "beacon-url": "<YourRPC>"
    }
  }
  ...
}

• orbitSetupScriptConfig.json

{
  ...
  "parent-chain-node-url": "<YourRPC>",
  ...
}

5. Setup and start the chain

EIGENDA_PROXY_PRIVATE_KEY="YourPrivateKey" ETH_RPC_URL="${YourRPC}" docker compose up -d
PRIVATE_KEY="YourPrivateKey" PARENT_CHAIN_RPC_URL="${YourRPC}" ORBIT_RPC_URL="http://127.0.0.1:8449" yarn run setup

EIGENDA_PROXY_PRIVATE_KEY need to remove the 0x prefix of the private key.

6. Change wasm module root on the deployed contract

Shut down the chain first.

docker compose down

then send tx to change wasm module root on contract

ETH_RPC_URL=<YourRPC> cast send <upgradeExecutorContractAddress> "executeCall(address,bytes)" <rollupContractAddress> 0x89384960<newWasmModuleRoot>  --gas-limit 10000000 --private-key "0xxxx"

newWasmModuleRoot need to remove the 0x prefix.

7. Modify the docker-compose.yaml file to use the precompile image

  nitro:
-   image: ghcr.io/layr-labs/nitro-eigenda:eigenda-v3.1.2
+   image: nitro-node
    platform: linux/amd64
    ports:
      - "8449:8449"
    volumes:
      - "./config:/home/user/.arbitrum"
    command: --conf.file /home/user/.arbitrum/nodeConfig.json

8. Start the chain

EIGENDA_PROXY_PRIVATE_KEY="YourPrivateKey" ETH_RPC_URL="${YourRPC}" docker compose up -d