roll-op is an open-source script that allows to spin up an OP stack rollup infrastructure by running only a few commands, and using a single configuration file. The package supports spinning a block explorer (Blockscout).

In this branch roll-op has been modified to

• consume 0 gas
• write data to a database as a Data Availability layer insted of the L1 chain.

The roll-op project was supported by an Optimism governance grant.

The current version deploys software pinned to the following branches:

• Optimism Monorepo: op-node/feat/da-db-v2
• op-geth: op-geth/feat/0gas

• Python >= 3.10 (to run the roll.py script) with pip
  • sudo apt install python3-pip on Debian-based systems
  • brew install python on macOS with Homebrew

You also need the following installed, rollop will warn you if these are missing:

• Some common command line utilities: make, curl, tar, awk and grep.
• logrotate
  • sudo apt install logrotate on Debian-based systems
  • brew install logrotate on macOS with Homebrew
• Git
• Docker (if you wish to run the Blockscout block explorer)

rollop will check the following dependencies and install them for you if needed (the script will always ask for your permission before installing anything outside the current directory):

• Python libraries
  • Tomli
  • PyYAML (for block explorer support)
  • These will be installed globally by default. To install them locally instead (in a venv within the roll-op directory), you can run source devenv.sh before running rollbop.
• Node.js 20.9.0
• pnpm (pnpm install -g pnpm)
• Yarn (for account abstraction support) (npm install -g yarn — the old one, not yarn v3 aka yarn berry)
• Geth >= 1.13.4 (but only if you want to run a devnet L1 node)
• The jq command line utility
• Foundry
• Go >= 1.21

The docker compose plugin is required. Note this differs from docker-compose. The presence of the plugin can be checked with

docker compose version

For manual installation refer the bottom of the official instalation description.

For a complete usage guide refer the original README. Here we only list the below examples.

./rollop setup --yes && ./rollop --clean --name=myTestnet --preset=dev --config=config.toml.example devnet --yes

The following starts network but sometimes the network is not fully responsive

./rollop --name=myTestnet --preset=dev --config=config.toml.example devnet

To check balances and send a tx run

npm install ethers
node myTestScripts.js

A blockscout explorer is provided. To start the explorer clean, use

./rollop explorer --clean

For a simple restart use

./rollop explorer --config=config.toml.example