Run a validator and bridge together

Overview

This guide demonstrates how to run a mainnet validator node and a bridge node on one machine using Docker.

Prerequisites

Docker

Install Docker Engine and the Docker Compose plugin:

RPC endpoints

Have two RPC endpoints ready:

Ronin RPC endpoint for listening and sending events on the mainnet: https://api.roninchain.com/rpc.
Ethereum RPC endpoint for listening and sending events on the Ethereum chain, such as Alchemy or Infura.

Private keys

Generate private keys for operating the nodes:

One key for the validator node
One key for the bridge operator

For more information, see Generate keys.

Steps

Set up directories:
```
mkdir -p ~/ronin/docker
cd ~/ronin
```
Create a directory for bridge data:
```
mkdir bridgedata
```
Create a directory for chain data:
```
mkdir -p chaindata/data/ronin
```

In the docker directory, create a docker-compose.yml file with the following configuration:

version: "3"
services:
  node:
    image: ${NODE_IMAGE}
    stop_grace_period: 5m
    stop_signal: SIGINT
    hostname: node
    container_name: node
    ports:
      - 127.0.0.1:8545:8545
      - 127.0.0.1:8546:8546
      - 30303:30303
      - 30303:30303/udp
      - 6060:6060
    volumes:
      - ~/ronin/chaindata:/ronin
    environment:
      - SYNC_MODE=full
      - PASSWORD=${PASSWORD}
      - PRIVATE_KEY=${VALIDATOR_PRIVATE_KEY}
      - NETWORK_ID=${NETWORK_ID}
      - RONIN_PARAMS=${RONIN_PARAMS}
      - VERBOSITY=${VERBOSITY}
      - MINE=${MINE}
      - GASPRICE=${GASPRICE}
      - ETHSTATS_ENDPOINT=${INSTANCE_NAME}:${CHAIN_STATS_WS_SECRET}@${CHAIN_STATS_WS_SERVER}:443
      - BLS_PASSWORD=${BLS_PASSWORD}
      - BLS_PRIVATE_KEY=${BLS_PRIVATE_KEY}
      - BLS_AUTO_GENERATE=${BLS_AUTO_GENERATE}
      - ENABLE_FAST_FINALITY=${ENABLE_FAST_FINALITY}
      - ENABLE_FAST_FINALITY_SIGN=${ENABLE_FAST_FINALITY_SIGN}
      - BLS_SHOW_PRIVATE_KEY=${BLS_SHOW_PRIVATE_KEY}
      - GENERATE_BLS_PROOF=${GENERATE_BLS_PROOF}
  db:
    image: postgres:14.3
    restart: always
    command: postgres -c 'max_connections=1000'
    hostname: db
    container_name: db
    ports:
      - 127.0.0.1:5432:5432
    environment:
      POSTGRES_PASSWORD: ${DB_PASSWORD}
    volumes:
      - ~/ronin/data:/var/lib/postgresql/data
  bridge:
    image: ${BRIDGE_IMAGE}
    restart: always
    container_name: bridge
    environment:
      - LISTENERS__RONIN__RPCURL=${LISTENERS__RONIN__RPCURL}
      - LISTENERS__RONIN__SECRET__BRIDGEOPERATOR__PLAINPRIVATEKEY=${LISTENERS__RONIN__SECRET__BRIDGEOPERATOR__PLAINPRIVATEKEY}
      - LISTENERS__ETHEREUM__RPCURL=${LISTENERS__ETHEREUM__RPCURL}
      - DATABASE__HOST=db
      - DATABASE__DBNAME=${DATABASE__DBNAME}
      - DATABASE__PORT=5432
      - DATABASE__USER=${DATABASE__USER}
      - DATABASE__PASSWORD=${DATABASE__PASSWORD}
      - VERBOSITY=${VERBOSITY}
      - CONFIG_PATH=${CONFIG_PATH}
      - LISTENERS__RONIN__TASKINTERVAL=${LISTENERS__RONIN__TASKINTERVAL}
      - LISTENERS__RONIN__TRANSACTIONCHECKPERIOD=${LISTENERS__RONIN__TRANSACTIONCHECKPERIOD}
      - LISTENERS__RONIN__MAXPROCESSINGTASKS=${LISTENERS__RONIN__MAXPROCESSINGTASKS}
      - LISTENERS__ETHEREUM__GETLOGSBATCHSIZE=${LISTENERS__ETHEREUM__GETLOGSBATCHSIZE}
      - LISTENERS__RONIN__STATS__NODE=${LISTENERS__RONIN__STATS__NODE}
      - LISTENERS__RONIN__STATS__HOST=${LISTENERS__RONIN__STATS__HOST}
      - LISTENERS__RONIN__STATS__SECRET=${LISTENERS__RONIN__STATS__SECRET}
    depends_on:
      - db
      - node

This compose file defines three services:

node that pulls a Ronin node image from the GitHub Container Registry.
bridge that pulls a bridge image.
db, which builds a Postgres database for the bridge.

In the docker directory, create an .env file and add the following content, replacing the <...> placeholder values with your information:

# Your Ethereum RPC endpoint
LISTENERS__ETHEREUM__RPCURL=<ETHEREUM_RPC_ENDPOINT>

# Ronin RPC endpoint
LISTENERS__RONIN__RPCURL=<RONIN_RPC_ENDPOINT>

# The name of your node that you want displayed on https://ronin-stats.roninchain.com/
INSTANCE_NAME=<INSTANCE_NAME>

# The latest version of the node's image as listed in https://docs.roninchain.com/validators/setup/upgrade-validator
NODE_IMAGE=<NODE_IMAGE>

# The latest version of the bridge's image as listed in https://docs.roninchain.com/bridge-operators/setup/upgrade-bridge
BRIDGE_IMAGE=<BRIDGE_IMAGE>

# Your bridge operator private key without the 0x prefix
LISTENERS__RONIN__SECRET__BRIDGEOPERATOR__PLAINPRIVATEKEY=<BRIDGE_OPERATOR_PRIVATE_KEY>

# Your ECDSA private key without the 0x prefix, see https://docs.roninchain.com/validators/setup/generate-keys#generate-an-ecdsa-key
VALIDATOR_PRIVATE_KEY=<ECDSA_PRIVATE_KEY>

# The password used to encrypt the node's private key file
PASSWORD=<PASSWORD>

# BLS Wallet features
# Your BLS private key without the 0x prefix, see https://docs.roninchain.com/validators/setup/generate-keys#generate-a-bls-key
BLS_PRIVATE_KEY=<BLS_PRIVATE_KEY>

# The password used to encrypt the BLS private key file
BLS_PASSWORD=<BLS_PASSWORD>

# Whether to participate in the finality vote broadcast
ENABLE_FAST_FINALITY=true

# Whether to produce the finality vote
ENABLE_FAST_FINALITY_SIGN=true

# Whether to automatically generate BLS private key
BLS_AUTO_GENERATE=false

# Whether to show the raw BLS private key after decryption
BLS_SHOW_PRIVATE_KEY=false

DATABASE__DBNAME=bridge
DATABASE__USER=postgres

# The Postgres database password
DATABASE__PASSWORD=<DATABASE_PASSWORD>

LISTENERS__RONIN__RPCURL=http://node:8545

CONFIG_PATH=config.mainnet.json

LISTENERS__RONIN__TASKINTERVAL=3s
LISTENERS__RONIN__TRANSACTIONCHECKPERIOD=50s
LISTENERS__RONIN__MAXPROCESSINGTASKS=200
LISTENERS__ETHEREUM__GETLOGSBATCHSIZE=100

NETWORK_ID=2020

GASPRICE=20000000000

MINE=true

VERBOSITY=3

CHAIN_STATS_WS_SECRET=WSyDMrhRBe111
CHAIN_STATS_WS_SERVER=ronin-stats-ws.roninchain.com

RONIN_PARAMS=--http.api eth,net,web3,consortium --miner.gaslimit 100000000 --miner.gasreserve 10000000 --cache 4096 --discovery.dns enrtree://AIGOFYDZH6BGVVALVJLRPHSOYJ434MPFVVQFXJDXHW5ZYORPTGKUI@nodes.roninchain.com

LISTENERS__RONIN__STATS__NODE=<NODE_NAME>
LISTENERS__RONIN__STATS__HOST=wss://ronin-stats-ws.roninchain.com/bridge
LISTENERS__RONIN__STATS__SECRET=WSyDMrhRBe111

(Optional) Download the snapshot from the ronin-snapshot repo, preferably using PebbleDB:

cd ~/ronin/chaindata/data/ronin/
wget -q -O - <snapshot URL from the README file in the repo> | tar -I zstd -xvf -

Start the node:
```
cd ~/ronin/docker && docker-compose up -d
```
This command pulls a Ronin node image, a bridge image, a Postgres database, and starts the services you defined.
After a few minutes, check the status of your node on the Ronin Analytics page. If it's green, the node is connected and up to date with the network.
Review the log for the validator and the bridge (the node should sync to the latest block for making the bridge work).
```
docker logs node -f --tail 100
docker logs bridge -f --tail 100
```

Overview​

Prerequisites​

Docker​

RPC endpoints​

Private keys​

Steps​