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Deploy an OP Stack testnet with Celestia

In order to deploy a testnet with Celestia, you will need to have a modified version of optimism-bedrock.

Install dependencies​

You can find the steps to install dependencies and the modified version here.

Pick your deployment type​

Using Celestia and OP stack, you have the option to either run a light node of your own or a local-celestia-devnet, which will give you a local devnet to test things out with.

Using a local devnet​

If you'd like to use the local-celestia-devnet, you're in luck! This is the default for the OP Stack + Celestia repository. Head to the previous page to get started.

Using a light node​

caution

This is a beta integration and we are working on resolving open issues. The current testnet this setup is compatible with is the Arabica devnet.

In order to allow your light node to post and retrieve data without errors, you will need to change UseShareExchange to false in:

$HOME/.celestia-light-blockspacerace-0/config.toml

If you choose to use your own node store, the light node must be fully synced and funded for you to be able to submit and retreive PayForBlobs to a Celestia network.

If it is not synced, you will run into errors.

Visit the Arabica page to visit the faucet.

In order to mount existing data, you must have a node store that is in this directory:

$HOME/.celestia-light-blockspacerace-0

This is the default location of the node store when you initialize and run a new Celestia node.

caution

The user in the docker-compose-testnet.yml is the root user, but this is not meant to be used in production.

By default, the node will run with the account named my_celes_key.

If you have your own setup you'd like to try, you can always edit optimism/ops-bedrock/docker-compose-testnet.yml to work with your setup.

Using a RaaS provider​

If you'd like to use a Rollups as a Service (RaaS) provider, you can do so by going to the RaaS category.

Build the testnet​

Build TypeScript definitions for TS dependencies:

cd $HOME
cd optimism
make build-ts

Set environment variables to start network:

export SEQUENCER_BATCH_INBOX_ADDRESS=0xff00000000000000000000000000000000000000
export L2OO_ADDRESS=0x70997970C51812dc3A010C7d01b50e0d17dc79C8

Start the testnet​

First, make sure your light node is synced and funded.

Next, you can start up the testnet with the following command:

make testnet-up

View the logs of the testnet​

If you'd like to view the logs of the testnet, run the following command from the root of the Optimism directory:

make testnet-logs

Stop the testnet​

To safely stop the testnet, run the following command:

make testnet-down

Clean the testnet​

To remove all data from the testnet, run the following command:

make testnet-clean