hetzner-k3s
hetzner-k3s is a CLI tool that automates Kubernetes cluster creation on Hetzner Cloud in 2-3 minutes. It bundles k3s, load balancing, persistent storage, and auto-scaling into a single YAML configuration without requiring Terraform, Ansible, or a management cluster.
Key facts
Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.
| Field | Value |
|---|---|
| Repository | vitobotta/hetzner-k3s |
| Owner | vitobotta |
| Primary language | Crystal |
| License | MIT — OSI-approved |
| Stars | 3.6k |
| Forks | 226 |
| Open issues | 30 |
| Latest release | v2.6.0 (2026-06-24) |
| Last updated | 2026-06-24 |
| Source | https://github.com/vitobotta/hetzner-k3s |
What hetzner-k3s is
Written in Crystal, hetzner-k3s wraps the Hetzner Cloud API to provision infrastructure and deploy k3s clusters with integrated Cloud Controller Manager, CSI driver, System Upgrade Controller, and Cluster Autoscaler. It stores kubeconfig locally and requires only SSH key access to nodes.
Get the hetzner-k3s source
Clone the repository and explore it locally.
git clone https://github.com/vitobotta/hetzner-k3s.gitcd hetzner-k3s# follow the project's README for install & configurationNeed it deployed, integrated, or customized instead? DEV.co ships production installs.
Best use cases
Implementation considerations
- Cluster creation is automated end-to-end, but you must manage node OS updates, k3s upgrades (via System Upgrade Controller), and persistent data backups independently.
- SSH key-based access is required for all nodes; ensure your SSH key management and distribution practices are secure. Private key compromise exposes cluster access.
- The tool is single-developer maintained (as of GitHub data). Review the GitHub issues (30 open) and sponsorship notice; adoption risk depends on whether community maintainers can backfill support.
- Hetzner Cloud API rate limits and regional availability (4 regions globally) may impact large-scale deployments or rapid cluster turnover.
When to avoid it — and what to weigh
- Multi-Cloud Strategy Required — Hetzner-k3s is tightly coupled to Hetzner Cloud. If you need portability across AWS, GCP, Azure, or on-premises, use Terraform or a cloud-agnostic tool instead.
- Zero Tolerance for Single-Vendor Lock-in — The tool and cluster design assume Hetzner Cloud; migrating to another cloud is not straightforward. If vendor independence is non-negotiable, evaluate managed Kubernetes or Terraform-based approaches.
- Preference for Graphical UI or Managed SaaS — hetzner-k3s is CLI-only with no web UI. Operators accustomed to GUI-driven provisioning or fully managed control planes may find the operational model unfamiliar.
- Compliance with Specific CSP Certifications — If your compliance framework mandates AWS, GCP, or Azure certifications (e.g., FedRAMP, GxP), Hetzner's certifications may not align with your requirements.
License & commercial use
MIT License (permissive). Permits commercial use, modification, and distribution with minimal restrictions. Full license text available in the repository.
MIT License explicitly permits commercial use, modification, and redistribution without royalties or restrictions. No commercial support, SLA, or indemnification is stated in the project. Organizations relying on this tool for revenue-critical workloads should review the single-developer maintenance model and consider sponsoring development or forking if required.
DEV.co evaluation signals
Editorial assessment — not user reviews. Directional, with an explicit confidence level.
| Signal | Assessment |
|---|---|
| Maintenance | Active |
| Documentation | Adequate |
| License clarity | Clear |
| Deployment complexity | Low |
| DEV.co fit | Good |
| Assessment confidence | High |
SSH-based node access is the primary credential vector; ensure private key storage and distribution follow organizational practices. Hetzner API token is stored locally in config; protect this file with filesystem permissions. No built-in RBAC, network policies, or pod security standards are mentioned; these must be configured post-deployment. Firewall and private networking are configured automatically by the tool; review generated firewall rules for least-privilege access. No third-party audit, penetration test, or security audit data is provided. HTTPS/TLS between nodes and kubeapi server is assumed via k3s defaults but requires verification.
Alternatives to consider
Terraform + Hetzner Cloud provider
Offers cloud-agnostic configuration, longer-term maintainability, and large ecosystem. Steeper learning curve (HCL, state management) and longer setup time (15-30+ min) but provides modularity and reusability across clouds.
Managed Kubernetes (AWS EKS, GCP GKE, Azure AKS, Hetzner Cloudfleet)
Outsource control plane management, automatic updates, and SLA-backed support. Higher recurring costs (platform fees) and potential third-party data access; less direct control over infrastructure.
Kind (Kubernetes in Docker) or Minikube
Lightweight local development clusters. Not suitable for production; designed for developer workstations and CI/CD containers, not multi-node infrastructure.
Build on hetzner-k3s with DEV.co software developers
Evaluate hetzner-k3s for your next development or cost-optimized production cluster. Start with the quick-start guide and sample configurations to assess fit for your workloads and team expertise.
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hetzner-k3s FAQ
Can I use hetzner-k3s for production workloads?
What are the costs compared to managed Kubernetes?
What if Hetzner has an outage or I need to migrate?
Is this suitable for a team or enterprise?
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Ready to Deploy Kubernetes on Hetzner?
Evaluate hetzner-k3s for your next development or cost-optimized production cluster. Start with the quick-start guide and sample configurations to assess fit for your workloads and team expertise.