️🏆0G LAB

Website: https://0g.ai/

Twitter: https://x.com/0G_labs

Discord: https://discord.com/invite/0glabs

Hardware Requirement

- Memory: 64 GB
- CPU: 8 cores
- Disk: 1 TB NVME SSD
- Bandwidth: 100 MBps for Download / Upload

Update system

sudo apt update && sudo apt upgrade -y
sudo apt install make curl git wget htop tmux build-essential jq make lz4 gcc unzip -y

Install Go

ver="1.21.5"
wget "https://golang.org/dl/go$ver.linux-amd64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf "go$ver.linux-amd64.tar.gz"
rm "go$ver.linux-amd64.tar.gz"
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile
go version

Build 0gchain binary

git clone -b v0.1.0 https://github.com/0glabs/0g-chain.git
cd 0g-chain
make install
0gchaind version

Set up variables

# Customize if you need
echo 'export MONIKER="My_Node"' >> ~/.bash_profile
echo 'export CHAIN_ID="zgtendermint_16600-1"' >> ~/.bash_profile
echo 'export WALLET_NAME="wallet"' >> ~/.bash_profile
echo 'export RPC_PORT="26657"' >> ~/.bash_profile
source $HOME/.bash_profile

Initialize the node

cd $HOME
0gchaind init $MONIKER --chain-id $CHAIN_ID
0gchaind config chain-id $CHAIN_ID
0gchaind config node tcp://localhost:$RPC_PORT
0gchaind config keyring-backend os # You can set it to "test" so you will not be asked for a password

Download genesis.json

wget https://github.com/0glabs/0g-chain/releases/download/v0.1.0/genesis.json -O $HOME/.0gchain/config/genesis.json

Add seeds and peers to the config.toml

SEEDS="[email protected]:26656,[email protected]:26656,[email protected]:26656,[email protected]:26656" && \
sed -i.bak -e "s/^seeds *=.*/seeds = \"${SEEDS}\"/" $HOME/.0gchain/config/config.toml

Change ports (Optional) Customize if you need

EXTERNAL_IP=$(wget -qO- eth0.me) \
PROXY_APP_PORT=26658 \
P2P_PORT=26656 \
PPROF_PORT=6060 \
API_PORT=1317 \
GRPC_PORT=9090 \
GRPC_WEB_PORT=9091

sed -i \
    -e "s/\(proxy_app = \"tcp:\/\/\)\([^:]*\):\([0-9]*\).*/\1\2:$PROXY_APP_PORT\"/" \
    -e "s/\(laddr = \"tcp:\/\/\)\([^:]*\):\([0-9]*\).*/\1\2:$RPC_PORT\"/" \
    -e "s/\(pprof_laddr = \"\)\([^:]*\):\([0-9]*\).*/\1localhost:$PPROF_PORT\"/" \
    -e "/\[p2p\]/,/^\[/{s/\(laddr = \"tcp:\/\/\)\([^:]*\):\([0-9]*\).*/\1\2:$P2P_PORT\"/}" \
    -e "/\[p2p\]/,/^\[/{s/\(external_address = \"\)\([^:]*\):\([0-9]*\).*/\1${EXTERNAL_IP}:$P2P_PORT\"/; t; s/\(external_address = \"\).*/\1${EXTERNAL_IP}:$P2P_PORT\"/}" \
    $HOME/.0gchain/config/config.toml

sed -i \
    -e "/\[api\]/,/^\[/{s/\(address = \"tcp:\/\/\)\([^:]*\):\([0-9]*\)\(\".*\)/\1\2:$API_PORT\4/}" \
    -e "/\[grpc\]/,/^\[/{s/\(address = \"\)\([^:]*\):\([0-9]*\)\(\".*\)/\1\2:$GRPC_PORT\4/}" \
    -e "/\[grpc-web\]/,/^\[/{s/\(address = \"\)\([^:]*\):\([0-9]*\)\(\".*\)/\1\2:$GRPC_WEB_PORT\4/}" \
    $HOME/.0gchain/config/app.toml

Configure pruning to save storage (Optional)

sed -i \
    -e "s/^pruning *=.*/pruning = \"custom\"/" \
    -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"100\"/" \
    -e "s/^pruning-interval *=.*/pruning-interval = \"10\"/" \
    "$HOME/.0gchain/config/app.toml"

Set min gas price

sed -i "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0ua0gi\"/" $HOME/.0gchain/config/app.toml

Enable indexer (Optional)

sed -i "s/^indexer *=.*/indexer = \"kv\"/" $HOME/.0gchain/config/config.toml

Create a service file

sudo tee /etc/systemd/system/0gd.service > /dev/null <<EOF
[Unit]
Description=0G Node
After=network.target

[Service]
User=$USER
Type=simple
ExecStart=$(which 0gchaind) start --home $HOME/.0gchain
Restart=on-failure
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

Start the node

sudo systemctl daemon-reload && \
sudo systemctl enable 0gd && \
sudo systemctl restart 0gd && \
sudo journalctl -u 0gd -f -o cat

P.S. Consider download snapshot or using statesync for the quick sync.

Create a wallet for your validator

0gchaind keys add $WALLET_NAME

Extract the HEX address to request some tokens from the faucet

echo "0x$(0gchaind debug addr $(0gchaind keys show $WALLET_NAME -a) | grep hex | awk '{print $3}')"

Request tokens from the faucet

Faucet - 0G Testnet

Checking Synchronization

0gchaind status 2>&1 | jq .sync_info

Check wallet balance

0gchaind q bank balances $(0gchaind keys show $WALLET_NAME -a) 

Check node status

0gchaind status | jq