AlmaLinux
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| AlmaLinux | |
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| Name | AlmaLinux |
| Family | Linux kernel |
| Developer | CloudLinux, Inc. |
| Source model | Open-source software |
| Kernel type | Monolithic kernel |
| Ui | GNOME, KDE Plasma |
| License | GNU General Public License, various open-source license |
| Website | CloudLinux, Inc. |
AlmaLinux is a community-oriented enterprise-grade Linux distribution created to provide a free, binary-compatible alternative to commercially supported Red Hat Enterprise Linux (RHEL). Launched in the aftermath of major product-policy changes by Red Hat, Inc., the project aims to maintain stability for production workloads in datacenters run by organizations such as Amazon Web Services, Google Cloud Platform, Microsoft Azure, and service providers like DigitalOcean and Linode. AlmaLinux positions itself alongside distributions like CentOS Stream, Rocky Linux, Debian, and Ubuntu as a community-focused platform for servers, virtualization, and container orchestration.
History
AlmaLinux originated after Red Hat, Inc. announced changes affecting CentOS in late 2020, catalyzing reactions from stakeholders including IBM, Intel, and numerous hosting companies. The initiative was publicly announced by CloudLinux, Inc. and key figures from community projects and companies such as cPanel, LLC., Plesk International GmbH, and the team behind Rocky Linux participated in ecosystem discussions. Early momentum drew comparisons to historical forks like FreeBSD branches and responses to vendor shifts such as the Oracle Linux strategy. The project adopted governance and build practices influenced by precedents set by Debian Project, Fedora Project, and community-led efforts like OpenStack foundations.
Features
AlmaLinux offers binary compatibility with Red Hat Enterprise Linux packages, delivering features expected in enterprise distributions: long-term stability preferred by operators at institutions such as NASA, CERN, and University of California. It ships with standard enterprise components like the Linux kernel, systemd, GNOME, and networking stacks comparable to those in distributions used by Netflix and Spotify for high-scale services. Integration options include container toolchains compatible with Docker, Podman, and orchestration via Kubernetes and OpenShift. Enterprise storage and virtualization interoperability mirrors that of KVM, Xen Project, and VMware ESXi ecosystems. The project emphasizes compatibility with popular control panels and automation tools from Ansible, Puppet, and Chef.
Release and Versioning
AlmaLinux follows a point-release model aligned with upstream Red Hat Enterprise Linux major versions, providing minor updates and backported security fixes. The release cadence mirrors the lifecycle practiced by vendors like SUSE, with Extended Update Support considerations similar to those from Oracle Linux offerings. Version numbering corresponds to RHEL major.minor schemes used by distributions like CentOS historically, and upgrade paths are supported through tooling resembling approaches from Fedora Project and Debian stable upgrades. Announcement channels include communities and organizations such as GitHub, GitLab, and major mailing lists patterned after Apache Software Foundation projects.
Architecture and Package Management
AlmaLinux supports common server architectures deployed by cloud providers and enterprises, including x86-64, with considerations for ARM adoption seen across Amazon Web Services Graviton instances and hardware providers like Ampere Computing. Package management is RPM-based using RPM Package Manager and DNF/YUM frontends, adhering to conventions established by Red Hat Package Manager ecosystems and package signing practices similar to Debian and Arch Linux security models. Build systems and CI/CD pipelines integrate with tooling such as Koji, Mock, and continuous integration services used by projects like Kubernetes and OpenShift.
Governance and Community
AlmaLinux established a non-profit governing body to steward releases and community contributions, inspired by governance models from the Debian Project, Fedora Project, and the Apache Software Foundation. The community comprises contributors from companies like CloudLinux, Inc., hosting providers including OVHcloud and Hetzner, and independent maintainers who have affiliations with projects such as cPanel, Plesk, and Percona. Decision-making channels include public repositories on GitHub, issue trackers, and community forums following patterns used by Stack Overflow and developer ecosystems such as Node.js Foundation collaborations.
Adoption and Use Cases
Adopters range from web hosting firms to research institutions and enterprises migrating production workloads from discontinued or reprioritized distributions. Common use cases include LAMP/LEMP stacks employed by companies like WordPress.com operators, container hosts for microservices used by GitHub and GitLab runners, and virtualization hosts for services run on OpenStack and VMware ESXi. Managed service providers and control panel vendors such as cPanel and Plesk support AlmaLinux to offer customers continuity similar to migrations previously undertaken from CentOS to alternatives like Rocky Linux.
Security and Support
Security practices for AlmaLinux align with upstream advisories from Red Hat Security bulletins and community workflows resembling those of Debian Security and Ubuntu Security. The project provides signed packages, CVE tracking compatible with feeds used by vulnerability management tools like OpenVAS and enterprise scanners from Qualys and Rapid7. Support is available through community forums, paid options from CloudLinux, Inc., and third-party vendors experienced with enterprise Linux support such as Red Hat, Inc. partners; incident response and patch management follow protocols similar to those in CERN and NASA operational environments.