Hetzner Bare Metal vs AWS EC2 Arbitrage Calculator

# Automated Bare Metal provisioning on Hetzner using Cloud-Init and Coolify
# Deploy high-availability PaaS cluster at 85% lower cost than AWS ECS/EKS
# Step 1: Install Docker and security hardening on Hetzner Ubuntu 24.04 LTS
curl -fsSL https://get.docker.com -o get-docker.sh && sh get-docker.sh
ufw default deny incoming
ufw default allow outgoing
ufw allow 22/tcp
ufw allow 80/tcp
ufw allow 443/tcp
ufw --force enable

# Step 2: Install Coolify self-hosted PaaS
curl -fsSL https://cdn.coollabs.io/coolify/install.sh | bash

# Result: Instant Heroku/AWS-like developer experience:
# - Automatic SSL via Let's Encrypt
# - GitHub Webhook deployments
# - Zero egress fees on 1 Gbps uplink
echo "✓ Hetzner PaaS cluster active at https://$(curl -s ifconfig.me):8000"

Infrastructure Arbitrage: Hetzner Bare Metal vs AWS EC2 Cloud TCO

For compute-intensive backend workloads (such as Elasticsearch clusters, self-hosted Postgres, Redis caches, and CPU-based inference), Hetzner Bare Metal delivers an astounding 70% to 85% cost reduction compared to equivalent AWS EC2 instances. While AWS offers managed hypervisors, global VPCs, and seamless IAM integration, its egress bandwidth pricing ($0.09/GB vs Hetzner's 20TB free per server + €1/TB) and persistent EBS storage IOPS taxes create massive monthly invoice divergence at scale.

Production Pipeline: Hetzner Bare-Metal Terraform Automation

Provisioning an automated Hetzner Cloud and Dedicated server using the official Hetzner Terraform provider with cloud-init:

# main.tf: Hetzner Infrastructure Provisioning
terraform {
  required_providers {
    hcloud = { source = "hetznercloud/hcloud", version = "~> 1.45" }
  }
}

provider "hcloud" {
  token = var.hcloud_token
}

resource "hcloud_server" "app_node" {
  name        = "production-api-worker"
  image       = "ubuntu-24.04"
  server_type = "cpx51" # 16 vCPU, 32GB RAM (~$32/mo)
  location    = "fsn1"
  ssh_keys    = [var.ssh_key_id]
  user_data   = <<-EOF
    #!/bin/bash
    apt-get update && apt-get install -y docker.io docker-compose
    systemctl enable --now docker
  EOF
}

Production Best Practices & Hybrid Cloud Guardrails

• Hardware Raid-1 Configuration: Bare-metal servers have physical NVMe drives. Always configure software RAID-1 (`mdadm`) during initial OS installation to guarantee continuous uptime during drive failure.
• Hybrid WireGuard Interconnect: Connect Hetzner compute nodes to AWS RDS databases over an encrypted WireGuard VPN tunnel, capturing cheap compute while keeping critical data inside AWS VPCs.
• Automated Backup Snapshots: Hetzner provides low-cost Storage Boxes ($3.80/month for 1TB). Schedule nightly incremental BorgBackup or Restic snapshots to off-site European datacenters.