Obol Stack One-Line Installer (reth + charon + lighthouse) - Simple Version

install.sh

#!/bin/sh
set -e

# Default configuration
CHAIN=${1:-mainnet}  # Default to mainnet if not specified
case "$CHAIN" in
    mainnet|holesky|sepolia) ;;
    *) echo "Unsupported chain: $CHAIN. Use mainnet, holesky or sepolia." && exit 1 ;;
esac

# Versions
ERIGON_VERSION="v2.61.0"
CHARON_VERSION="v1.2.0"

# Architecture detection
ARCH=$(uname -m)
case "$ARCH" in
    x86_64)  ARCH="amd64" ;;
    aarch64) ARCH="arm64" ;;
    *) echo "Unsupported architecture: $ARCH" && exit 1 ;;
esac

echo "Installing for $CHAIN network..."

# Create base directories
rm -rf /opt/obol/erigon/*
rm -rf /opt/obol/charon/*
mkdir -p /opt/obol/erigon
mkdir -p /opt/obol/charon

# Create temp directory
TMPDIR=$(mktemp -d)
cd $TMPDIR

# Download and install erigon
echo "Installing erigon..."
wget "https://github.com/erigontech/erigon/releases/download/${ERIGON_VERSION}/erigon_${ERIGON_VERSION}_linux_${ARCH}.tar.gz"
tar xzf "erigon_${ERIGON_VERSION}_linux_${ARCH}.tar.gz"
rm -rf "/opt/obol/erigon/erigon_${ERIGON_VERSION}_linux_${ARCH}"
mv "erigon_${ERIGON_VERSION}_linux_${ARCH}" "/opt/obol/erigon/"

# Download and install charon
echo "Installing charon..."
# Install Go and build dependencies
apt-get update && apt-get install -y --no-install-recommends build-essential git wget ca-certificates unzip golang-1.23
export PATH=$PATH:/usr/lib/go-1.23/bin

# Download and build charon
wget -O charon.zip "https://github.com/ObolNetwork/charon/archive/refs/tags/${CHARON_VERSION}.zip"
unzip charon.zip
cd "charon-${CHARON_VERSION#v}"
go build -o charon .
mv charon /opt/obol/charon/
cd ..
rm -rf charon.zip "charon-${CHARON_VERSION#v}"

# Cleanup
cd /
rm -rf $TMPDIR

# Create systemd services
cat > /etc/systemd/system/erigon.service << EOF
[Unit]
Description=Erigon Execution Client with Caplin Consensus
After=network.target

[Service]
Type=simple
User=erigon
ExecStart=/opt/obol/erigon/erigon_${ERIGON_VERSION}_linux_${ARCH}/erigon --datadir=/opt/obol/erigon/data --chain=${CHAIN} --http --ws --http.api=eth,debug,net,trace,web3,erigon --beacon.api=beacon,builder,config,node,validator
Restart=always
RestartSec=5
WorkingDirectory=/opt/obol/erigon

[Install]
WantedBy=multi-user.target
EOF

cat > /etc/systemd/system/charon.service << EOF
[Unit]
Description=Charon Client
After=network.target

[Service]
Type=simple
User=charon
ExecStart=/opt/obol/charon/charon run
Restart=always
RestartSec=5
WorkingDirectory=/opt/obol/charon

[Install]
WantedBy=multi-user.target
EOF

# Create system users
useradd -r -s /sbin/nologin erigon || true
useradd -r -s /sbin/nologin charon || true

# Set permissions
chown -R erigon:erigon /opt/obol/erigon
chown -R charon:charon /opt/obol/charon

# Enable and start services
systemctl daemon-reload
systemctl enable erigon charon
systemctl start erigon charon

echo "Installation complete! Services have been started for $CHAIN network."
echo "Check status with: systemctl status erigon charon"
echo "Usage: $0 [mainnet|holesky]"