Warewulf

Spec sheet

Purpose

Warewulf provisions and manages stateless Linux clusters, most prominently for high-performance computing.Read 5 Oct 2026 · warewulf.org

API

Warewulf includes a REST API that is disabled by default and can be configured to require TLS.Read 5 Oct 2026 · warewulf.org

Integrations

The project identifies container tooling, CI/CD pipelines, OpenHPC, Ansible, and Slurm among the tools and ecosystems it works with or aims to integrate with.Read 5 Oct 2026 · warewulf.org

Security

Warewulf supports SELinux and offers asset-key checks, secure mode, optional TLS for runtime overlays, and Secure Boot with shim and GRUB.Read 5 Oct 2026 · warewulf.org

Support

Warewulf offers free documentation, Slack, and GitHub community resources, while commercial support is available through CIQ and SUSE.Read 5 Oct 2026 · warewulf.org

Founded

2001Read 28 Sep 2026 · warewulf.org

Additional use cases

The project says Warewulf can also serve clustered web servers, rendering farms, Kubernetes deployments, and cloud deployments.Read 5 Oct 2026 · warewulf.org

Feature maturity

The documentation marks GRUB, Secure Boot, disk provisioning, provision-to-disk, and dnsmasq as preview features, and generic resources as incomplete.Read 5 Oct 2026 · warewulf.org

Hardware and Linux support

The documentation says Warewulf is distribution and hardware agnostic, citing ARM and x86 plus Debian, SUSE, Rocky, CentOS, and RHEL.Read 5 Oct 2026 · warewulf.org

Installation

The project documents RPM packages for Rocky Linux 9 and openSUSE Leap, plus source builds and Linux container builds.Read 5 Oct 2026 · warewulf.org

Management

Its server provides the wwctl command-line interface for managing nodes, images, and overlays, with YAML node definitions and reusable profiles.Read 5 Oct 2026 · warewulf.org

Node images

Warewulf v4 manages bootable operating system images with container tooling or CI/CD pipelines, including DockerHub and private GitLab CI infrastructure.Read 5 Oct 2026 · warewulf.org

Provisioning

Warewulf supports iPXE network booting and template-based overlays applied at boot or runtime.Read 5 Oct 2026 · warewulf.org

Scale

The project describes deployments ranging from tens to tens of thousands of compute systems.Read 5 Oct 2026 · warewulf.org

Security limitation

By default, provisioning requests can be spoofed to download OS images and overlays, and the kernel and system image remain unencrypted even when TLS is enabled.Read 5 Oct 2026 · warewulf.org

Plans and prices

Every Warewulf plan and price →

Where Specifiction places it

• OS Imaging & Deployment Software#15 of 247.4
• Bare Metal Provisioning Software#22 of 287.4