🔻Babylon

System Requirements

• 4+ CPU cores (AMD64)

• 32 GB RAM

• 1 TB NVMe SSD

• 100 Mbps internet connection

Installation

1. Update the system:

sudo apt update && sudo apt upgrade -y
sudo apt install curl git jq lz4 build-essential -y

1. Install Go:

ver="1.20.3"
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

1. Clone and build Babylon:

cd $HOME
rm -rf babylon
git clone https://github.com/babylonchain/babylon.git
cd babylon
git checkout v0.7.2
make build

1. Initialize the node:

MONIKER="YOUR_MONIKER_NAME"
babylond init $MONIKER --chain-id bbn-test-3

1. Download the genesis file:

wget https://github.com/babylonchain/networks/raw/main/bbn-test-3/genesis.tar.bz2
tar -xjf genesis.tar.bz2 && rm genesis.tar.bz2
mv genesis.json ~/.babylond/config/genesis.json

Configuration

1. Configure the settings:

sed -i 's|^minimum-gas-prices *=.*|minimum-gas-prices = "0.00001ubbn"|g' $HOME/.babylond/config/app.toml
sed -i 's|^prometheus *=.*|prometheus = true|' $HOME/.babylond/config/config.toml

1. Add seeds and peers:

SEEDS=""
PEERS=""
sed -i -e 's|^seeds *=.*|seeds = "'$SEEDS'"|; s|^persistent_peers *=.*|persistent_peers = "'$PEERS'"|' $HOME/.babylond/config/config.toml

1. Configure pruning:

sed -i 's|pruning = "default"|pruning = "custom"|g' $HOME/.babylond/config/app.toml
sed -i 's|pruning-keep-recent = "0"|pruning-keep-recent = "100"|g' $HOME/.babylond/config/app.toml
sed -i 's|pruning-interval = "0"|pruning-interval = "10"|g' $HOME/.babylond/config/app.toml

Launch

1. Create a service:

sudo tee /etc/systemd/system/babylond.service > /dev/null << EOF
[Unit]
Description=Babylon Node
After=network-online.target

[Service]
User=$USER
ExecStart=$(which babylond) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

1. Start the node:

sudo systemctl daemon-reload
sudo systemctl enable babylond
sudo systemctl start babylond

1. Check the logs:

sudo journalctl -u babylond -f -o cat

Creating a Validator

1. Create a wallet:

babylond keys add wallet

1. Get tokens from the faucet in Discord.

2. Create a validator:

babylond tx staking create-validator \
--amount=1000000ubbn \
--pubkey=$(babylond tendermint show-validator) \
--moniker="YOUR_MONIKER_NAME" \
--chain-id=bbn-test-3 \
--commission-rate=0.10 \
--commission-max-rate=0.20 \
--commission-max-change-rate=0.01 \
--min-self-delegation=1 \
--from=wallet \
--gas-adjustment=1.4 \
--gas=auto \
-y