Foreman vs Grendel
Foreman
theforeman.orgGrendel
grendel.readthedocs.ioSide by side
| Figure | Foreman | Grendel |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Bare Metal Provisioning Software | 8.7 (#5) | 7.5 (#17) |
| Access controls | Foreman supports fine-grained role-based access control and authentication integrations including LDAP, FreeIPA, and Microsoft Active Directory. | The TCP listener uses token authentication and role-based access control, with built-in admin, user, and read-only roles. |
| Intended users | Foreman is aimed at system administrators, and the project says getting started requires a degree of Linux system administration knowledge. | The documentation assumes HPC, Linux, and networking knowledge and describes administrators using Grendel to deploy physical compute clusters. |
| Provisioning | Foreman provisions bare-metal systems and instances across virtualization environments and public or private clouds. | It provides DHCP, PXE, TFTP, DNS, and HTTP services for provisioning Linux systems over a network. |
| Purpose | Foreman is an open-source tool for managing servers through provisioning, configuration, orchestration, and monitoring. | Grendel is a bare-metal provisioning system for High Performance Computing Linux clusters. |
Plans
In their own words
Foreman
Foreman is a free, open-source lifecycle management tool for physical and virtual servers. System administrators can use it to automate repetitive tasks, deploy applications, and manage on-premise or cloud systems. It provisions bare-metal machines and resources from providers including Amazon EC2, Google Compute Engine, OpenStack, Libvirt, oVirt, and VMware. Configuration integrations include Puppet, Ansible, Chef, and Salt; Foreman also collects Ansible reports and facts. Administrators can work through a web frontend, REST API, or Linux CLI, including Hammer CLI access to API calls. Role-based access control and integrations such as LDAP, FreeIPA, and Microsoft Active Directory support access management. Host groups, bulk management, health reports, and audits help organize systems and review changes. A typical deployment has a Foreman server, Smart Proxy servers, and managed hosts. The quickstart lists Enterprise Linux 9, Debian 12 and 13, and Ubuntu 22.04 and 24.04, and requires 4 GB of memory. Installation configures multiple system components, and setup requires Linux system administration knowledge.
Grendel
Grendel has no write-up on Specifiction yet; its figures are above.