Skip to content

Instantly share code, notes, and snippets.

@minhpq331

minhpq331/install_node_exporter.sh

Last active October 14, 2025 09:20
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save minhpq331/1e235d45ad72f18cb84878bbb84d2eb9 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save minhpq331/1e235d45ad72f18cb84878bbb84d2eb9 to your computer and use it in GitHub Desktop.
Download ZIP
Run node-exporter using docker
Raw
install_node_exporter.sh
#!/bin/bash
# ============================================================
# Node Exporter installation script for Ubuntu
# ============================================================
set -e
# Variables
NODE_EXPORTER_VERSION="1.9.1"
DOWNLOAD_URL="https://github.com/prometheus/node_exporter/releases/download/v${NODE_EXPORTER_VERSION}/node_exporter-${NODE_EXPORTER_VERSION}.linux-amd64.tar.gz"
INSTALL_DIR="/usr/local/bin"
USER="node_exporter"
echo "=== Installing Node Exporter v${NODE_EXPORTER_VERSION} ==="
# Update system and install prerequisites
sudo apt update -y
sudo apt install -y wget tar
# Create a dedicated user
if ! id -u $USER >/dev/null 2>&1; then
echo "Creating user $USER..."
sudo useradd --no-create-home --shell /bin/false $USER
fi
# Download and extract Node Exporter
cd /tmp
echo "Downloading Node Exporter..."
wget -q $DOWNLOAD_URL
echo "Extracting package..."
tar xzf node_exporter-${NODE_EXPORTER_VERSION}.linux-amd64.tar.gz
sudo cp node_exporter-${NODE_EXPORTER_VERSION}.linux-amd64/node_exporter $INSTALL_DIR/
# Set permissions
sudo chown $USER:$USER $INSTALL_DIR/node_exporter
# Create systemd service file
echo "Creating systemd service..."
sudo tee /etc/systemd/system/node_exporter.service > /dev/null <<EOF
[Unit]
Description=Prometheus Node Exporter
After=network.target
[Service]
User=${USER}
Group=${USER}
Type=simple
ExecStart=${INSTALL_DIR}/node_exporter
Restart=always
[Install]
WantedBy=multi-user.target
EOF
# Reload systemd and enable the service
echo "Enabling and starting Node Exporter service..."
sudo systemctl daemon-reload
sudo systemctl enable node_exporter
sudo systemctl start node_exporter
# Verify service status
sudo systemctl status node_exporter --no-pager
echo "=== Installation completed successfully! ==="
echo "Node Exporter is running on port 9100"
echo "You can verify it by visiting: http://<your-server-ip>:9100/metrics"
Raw
install_node_exporter_docker.sh
#!/bin/bash
# Node Exporter Installation Script for Linux
# This script installs Docker using convenient script, sets up the node exporter, and starts it
set -e # Exit on any error
echo "🚀 Starting Node Exporter installation..."
# Function to check if command exists
command_exists() {
command -v "$1" >/dev/null 2>&1
}
# Function to check if docker compose is available
docker_compose_available() {
docker compose version >/dev/null 2>&1
}
# Function to install docker-compose if needed
install_docker_compose() {
echo "📦 Docker Compose not found. Installing latest docker-compose from GitHub..."
# Get the latest release version
COMPOSE_VERSION=$(curl -s https://api.github.com/repos/docker/compose/releases/latest | grep -Po '"tag_name": "\K.*?(?=")')
if [ -z "$COMPOSE_VERSION" ]; then
echo "❌ Failed to get latest docker-compose version. Using fallback version."
COMPOSE_VERSION="v2.20.2"
fi
echo "🔽 Installing docker-compose version: $COMPOSE_VERSION"
# Download docker-compose binary
sudo curl -L "https://github.com/docker/compose/releases/download/${COMPOSE_VERSION}/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
# Make it executable
sudo chmod +x /usr/local/bin/docker-compose
# Create symlink for easier access
sudo ln -sf /usr/local/bin/docker-compose /usr/bin/docker-compose
echo "✅ docker-compose installed successfully!"
}
# Function to install Docker using convenient script
install_docker_convenient() {
echo "📦 Docker not found. Installing Docker using convenient script..."
# Download and run Docker's convenient installation script
echo "🐳 Downloading Docker installation script..."
curl -fsSL https://get.docker.com -o get-docker.sh
echo "🚀 Running Docker installation script..."
sudo sh get-docker.sh
# Add current user to docker group
echo "👤 Adding current user to docker group..."
sudo usermod -aG docker $USER
# Start and enable Docker service
echo "🔄 Starting and enabling Docker service..."
sudo systemctl start docker
sudo systemctl enable docker
# Clean up installation script
rm -f get-docker.sh
echo "✅ Docker installed successfully using convenient script!"
echo "⚠️ Please log out and log back in for group changes to take effect."
}
# Check if Docker is installed
if ! command_exists docker; then
echo "❌ Docker is not installed."
# Install Docker using convenient script
if [[ "$OSTYPE" == "linux-gnu"* ]]; then
install_docker_convenient
else
echo "❌ Unsupported operating system: $OSTYPE"
echo "This script supports Linux distributions only."
echo "Please install Docker manually and run this script again."
exit 1
fi
else
echo "✅ Docker is already installed."
# Check if Docker is running
if ! docker info >/dev/null 2>&1; then
echo "❌ Docker is installed but not running."
echo "Please start Docker service: sudo systemctl start docker"
exit 1
fi
fi
# Check for Docker Compose
echo "🔍 Checking for Docker Compose..."
if docker_compose_available; then
echo "✅ Docker Compose plugin is available (docker compose)"
COMPOSE_CMD="docker compose"
elif command_exists docker-compose; then
echo "✅ docker-compose binary is available"
COMPOSE_CMD="docker-compose"
else
echo "❌ Neither 'docker compose' nor 'docker-compose' found."
install_docker_compose
COMPOSE_CMD="docker-compose"
fi
# Create /data/exporter directory
echo "📁 Creating /data/exporter directory..."
sudo mkdir -p /data/exporter
sudo chown $USER:$USER /data/exporter
# Create docker-compose.yml file
echo "📝 Creating docker-compose.yml file..."
cat > /data/exporter/docker-compose.yml << 'EOF'
services:
node_exporter:
image: quay.io/prometheus/node-exporter:latest
container_name: node_exporter
command:
- '--path.rootfs=/host'
network_mode: host
pid: host
restart: unless-stopped
volumes:
- '/:/host:ro,rslave'
EOF
echo "✅ docker-compose.yml created successfully!"
# Navigate to the exporter directory
cd /data/exporter
# Stop existing container if running
echo "🛑 Stopping existing node_exporter container if running..."
$COMPOSE_CMD down 2>/dev/null || true
# Start the node exporter
echo "🚀 Starting Node Exporter..."
$COMPOSE_CMD up -d
# Wait a moment for the container to start
sleep 3
# Check if container is running
if docker ps | grep -q node_exporter; then
echo "✅ Node Exporter is running successfully!"
echo "📊 Node Exporter metrics are available at: http://localhost:9100/metrics"
echo "🔍 Container status:"
docker ps | grep node_exporter
else
echo "❌ Failed to start Node Exporter. Checking logs..."
$COMPOSE_CMD logs
exit 1
fi
echo "🎉 Installation completed successfully!"
echo ""
echo "📋 Summary:"
echo " - Docker: ✅ Installed and running"
echo " - Directory: /data/exporter"
echo " - Configuration: /data/exporter/docker-compose.yml"
echo " - Node Exporter: ✅ Running on port 9100"
echo ""
echo "🔧 To manage the service:"
echo " - Stop: cd /data/exporter && $COMPOSE_CMD down"
echo " - Start: cd /data/exporter && $COMPOSE_CMD up -d"
echo " - View logs: cd /data/exporter && $COMPOSE_CMD logs -f"
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment