Developer | Microsoft |
---|---|
Written in | Go, Shell script, C, Roff, Python |
OS family | Linux |
Source model | Open source |
Initial release | April 1, 2020 (as CBL-Mariner) |
Latest release | 3.0.20240824 / August 24, 2024 [1] |
Repository | github |
Marketing target | Cloud infrastructure and edge products and services |
Kernel type | Monolithic (Linux kernel) |
License | Primarily MIT License, with some components under Photon License, Apache License v2, GPLv2, and LGPLv2.1 [2] |
Official website | github |
Azure Linux, previously known as CBL-Mariner (in which CBL stands for Common Base Linux), [3] is a free and open-source Linux distribution that Microsoft has developed. It is the base container OS for Microsoft Azure services [4] [5] and the graphical component of WSL 2. [6]
CBL-Mariner is being developed by the Linux Systems Group at Microsoft for its edge network services and as part of its cloud infrastructure. [5] The company uses it as the base Linux for containers in the Azure Stack HCI implementation of Azure Kubernetes Service. [4] Microsoft also uses CBL-Mariner in Azure IoT Edge to run Linux workloads on Windows IoT, and as a backend distro to host the Weston compositor for WSLg. [7]
In a similar approach to Fedora CoreOS, CBL-Mariner only has the basic packages needed to support and run containers. Common Linux tools are used to add packages and manage security updates. Updates are offered either as RPM packages or as complete disk images that can be deployed as needed. Using RPM allows adding custom packages to a base CBL-Mariner image to support additional features and services as needed. Notable features include an iptables-based firewall, support for signed updates, and a hardened kernel. [5]
Microsoft released the operating system in 2020. [5] Its source code is available on GitHub, mainly under the MIT License, with some components under Photon License , Apache License v2, GPLv2, and LGPLv2.1. [2] Building CBL-Mariner requires the Go programming language, QEMU utilities, and RPM. [5]
Starting from the release 2.0.20240301, CBL-Mariner is called Azure Linux. [8]
Windows IoT, short for Windows Internet of Things and formerly known as Windows Embedded, is a family of operating systems from Microsoft designed for use in embedded systems. Microsoft has three different subfamilies of operating systems for embedded devices targeting a wide market, ranging from small-footprint, real-time devices to point of sale (POS) devices like kiosks. Windows Embedded operating systems are available to original equipment manufacturers (OEMs), who make it available to end users preloaded with their hardware, in addition to volume license customers in some cases.
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