Op-Geth

Author: [Godwin]

System Requirements

CPU	OS	RAM	DISK
4-8 cores	Ubuntu 24.04	16	5TB

The Optimism Sepolia Archive Node has a size of 2.3TB as of 3/10/2025.

Pre-Requisites

Update System

sudo apt update -y && sudo apt upgrade -y && sudo apt autoremove -y
sudo apt install -y git gcc make --fix-missing

Installl Docker

# Update and upgrade packages
sudo apt-get update
sudo apt-get upgrade -y

### Docker and docker compose prerequisites
sudo apt-get install -y curl
sudo apt-get install -y gnupg
sudo apt-get install -y ca-certificates
sudo apt-get install -y lsb-release

### Download the docker gpg file to Ubuntu
sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg

### Add Docker and docker compose support to the Ubuntu's packages list
echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update
 
### Install docker and docker compose on Ubuntu
sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin

sudo usermod -aG docker $(whoami)
 
### Verify the Docker and docker compose install on Ubuntu
sudo docker run hello-world

Firewall Configuration

Set Explicit Firewall Configuration

sudo ufw default deny incoming && sudo ufw default allow outgoing

Allow SSH

sudo ufw allow 22/tcp

Allow Connections for OP-NODE & OP-GETH

sudo ufw allow 8546
sudo ufw allow 9545
sudo ufw allow 8545
sudo ufw allow 3000

Enable Firewall Rules

sudo ufw enable

Check Status of Firewall Rules (UFW)

sudo ufw status verbose

Clone the Optimism Docker Setup Directory

Create Directories

git clone https://github.com/smartcontracts/simple-optimism-node.git
cd simple-optimism-node

Copy .env.example to .env

cp .env.example .env

Configure the .env file

This is a sampe of how to configure the .env for op-sepolia node

If port 8545 isn't working, you can connect to the default port for the l2 geth execution node port - 9993

###############################################################################
#                                ↓ REQUIRED ↓                                 #
###############################################################################

# Network to run the node on ("op-mainnet" or "op-sepolia")
NETWORK_NAME=op-sepolia

# Type of node to run ("full" or "archive"), note that "archive" is 10x bigger
NODE_TYPE=archive

###############################################################################
#                            ↓ REQUIRED (BEDROCK) ↓                           #
###############################################################################

# L1 node that the op-node (Bedrock) will get chain data from
OP_NODE__RPC_ENDPOINT=<l1-endpoint>

# L1 beacon endpoint, you can setup your own or use Quicknode
OP_NODE__L1_BEACON=<l1-beacon-endpoint>

# Type of RPC that op-node is connected to, see README
OP_NODE__RPC_TYPE=basic

# Reference L2 node to run healthcheck against
HEALTHCHECK__REFERENCE_RPC_PROVIDER=https://sepolia.optimism.io

###############################################################################
#                            ↓ OPTIONAL (BEDROCK) ↓                           #
###############################################################################

# Optional provider to serve legacy RPC requests, see README
OP_GETH__HISTORICAL_RPC=https://mainnet.optimism.io

# Set to "full" to force op-geth to use --syncmode=full
OP_GETH__SYNCMODE=

###############################################################################
#                                ↓ OPTIONAL ↓                                 #
###############################################################################

# Feel free to customize your image tag if you want, uses "latest" by default
# See here for all available images: https://hub.docker.com/u/ethereumoptimism
IMAGE_TAG__L2GETH=
IMAGE_TAG__DTL=
IMAGE_TAG__HEALTCHECK=
IMAGE_TAG__PROMETHEUS=
IMAGE_TAG__GRAFANA=
IMAGE_TAG__INFLUXDB=
IMAGE_TAG__OP_GETH=
IMAGE_TAG__OP_NODE=

# Exposed server ports (must be unique)
# See docker-compose.yml for default values
PORT__L2GETH_HTTP=8545
PORT__L2GETH_WS=
PORT__DTL=
PORT__HEALTHCHECK_METRICS=
PORT__PROMETHEUS=
PORT__GRAFANA=
PORT__INFLUXDB=
PORT__TORRENT_UI=
PORT__TORRENT=
PORT__OP_GETH_HTTP=
PORT__OP_GETH_WS=
PORT__OP_GETH_P2P=
PORT__OP_NODE_P2P=
PORT__OP_NODE_HTTP=

You can get more info on the env config in this link - https://github.com/smartcontracts/simple-optimism-node#mandatory-configurations

The docker-compose.yml file can be found here

https://github.com/smartcontracts/simple-optimism-node/blob/main/docker-compose.yml

Operating the Node

docker compose up -d --build

View the logs

docker compose logs <CONTAINER_NAME> -f --tail 10

Monitoring

Run progress.sh to estimate remaining sync time and speed.

./progress.sh

Chain ID: 11155420
Sampling, please wait
Blocks per minute: 30
Hours until sync completed: ...

Grafana dashboard

Grafana is exposed at http://localhost:3000 and comes with one pre-loaded dashboard ("Simple Node Dashboard").

Use the following login details to access the dashboard:

• Username: admin

• Password: optimism

Query Node

Check Sync Status

curl -H "Content-Type: application/json" \
-X POST --data '{"jsonrpc":"2.0", "method":"eth_syncing", "params":[], "id":1}' \
http://localhost:8545 or 9993

# If node is done syncing - the response should resemble the below.
{"jsonrpc":"2.0","id":1,"result":false}

Check optimism sync status

curl -X POST -H "Content-Type: application/json" --data \
    '{"jsonrpc":"2.0","method":"optimism_syncStatus","params":[],"id":1}'  \
    http://localhost:9545

{"jsonrpc":"2.0","id":1,"result":{"current_l1":{"hash":"0xda1a28e8d035386478138aa1941d324bf39ac9ff57f4fbcf72ff98450f2c2590","number":7876040,"parentHash":"0x3a3a56dd92718df3b55ad48d3b8adfcf2a1741f7ec1478b9ec9bcf152a4dbc26","timestamp":1741642332},"current_l1_finalized"....

Check Block Number

curl -H "Content-Type: application/json" \
-X POST --data '{"jsonrpc":"2.0", "method":"eth_blockNumber", "params":[], "id":1}' \
http://localhost:8545 or 9993

# Response should resemble the below.
{"jsonrpc":"2.0","id":1,"result":"0x17c3e4e"}