[OP Stack Deployment] Configure P2P Sequencer Address

[con5cience]

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Issue Description

Super simple question within a very complex context.

I've built a devnet sequencer on Optimism per the "Create Your Own Rollup" docs. I'm now trying to stand up a Reth + Optimism node to peer with the network because there are technical dependencies that only Reth satisfies. I'm seeing this error in the Optimism logs on that peer:
"no configured p2p sequencer address, ignoring gossiped block"

Where/how do I configure a P2P Sequencer Address? I've tried reverse-engineering the codebase, it seems to refer to a parameter in the rollup configuration that doesn't exist.

Any help would be appreciated. 🙏

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[hash1go]

Hello.
I think the sequencer address refers to this address.
https://docs.optimism.io/builders/chain-operators/tutorials/create-l2-rollup#generate-addresses

The Sequencer address signs blocks on the p2p network.

[con5cience]

Hi there!

Thanks for your comment.

I definitely understand the notion of the sequencer address -- What I don't get is how or where to actually hand off the address to op-node.

Let me know if that helps clarify things.

[hash1go]

With this procedure, information about the sequencer address is registered as a host environment variable, so the sequencer's op-node should be able to reference it.
https://docs.optimism.io/builders/chain-operators/tutorials/create-l2-rollup#load-environment-variables

Additionally, the sequencer address becomes accessible through the L1 contract (SystemConfig).
https://etherscan.io/address/0x229047fed2591dbec1eF1118d64F7aF3dB9EB290#readProxyContract#F27

[con5cience]

Right, but this is an op-node process not running on the sequencer itself -- does op-node consume that environment variable regardless of whether it's running in Sequencer mode?

Since I have to hand off the rollup configuration to op-node for my custom devnet peer, does that somehow imply that the sequencer address didn't make it into that file? How would I confirm, and once confirmed, how do I correct it?

[hash1go]

Sorry, I thought you were talking about op-node on the sequencer.
The L1 system config contract address should be written in rollup.json. For more details, please check this troubleshooting guide.

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