Parachain.md

How to run parachain

Build

Please note that we have two different runtimes

• vln-node - The standalone "validator" node runtime
• vln-parachain - The parachain-compliant "collator" node runtime which runs on Rococo

For development, we recommend to run the vln-node.

cargo build --release -p vln-parachain

Run

Local Testnet

Clone Polkadot (rococo-v1 branch):

cd polkadot/
cargo build --release --features real-overseer

./target/release/polkadot build-spec --chain rococo-local --raw --disable-default-bootnode > rococo_local.json

./target/release/polkadot --chain ./rococo_local.json -d cumulus_relay1 --validator --bob --port 50555
./target/release/polkadot --chain ./rococo_local.json -d cumulus_relay0 --validator --alice --port 50556

Run VLN parachain:

./target/release/vln_parachain -d local-test --collator --alice --ws-port 9945 --parachain-id 200 -- --chain ./node/parachain/src/chain_spec/rococo_local.json