'''Azure Linux''' (previously CBL-Mariner),<ref name="TechRepublic">{{Cite web|first=Mary|last=Branscombe|url=https://www.techrepublic.com/article/what-is-microsoft-doing-with-linux-everything-you-need-to-know-about-its-plans-for-open-source/|title=What is Microsoft doing with Linux? Everything you need to know about its plans for open source|date=December 2, 2020|website=TechRepublic}}</ref> is a [[free and open-source]] [[Linux distribution]] thatdeveloped by [[Microsoft]] has developed. It is the base [[Containerization (computing)|container]] OS for [[Microsoft Azure]] services<ref name="ZDNet">{{Cite web|last=Foley|first=Mary Jo|date=November 11, 2020|title=CBL-Mariner: Microsoft's internal Linux distribution for Azure first-party services and edge appliances|url=https://www.zdnet.com/article/cbl-mariner-microsofts-internal-linux-distribution-for-azure-first-party-services-and-edge-appliances/|website=ZDNet}}</ref><ref name="IW">{{Cite web|first=Simon|last=Bisson|url=https://www.infoworld.com/article/3596347/microsoft-adds-a-new-linux-cbl-mariner.html|title=Microsoft adds a new Linux: CBL-Mariner|date=November 10, 2020|website=InfoWorld}}</ref> and the graphical component of [[Windows Subsystem for Linux 2|WSL 2]].<ref>{{Cite news|last=Foley|first=Mary Jo|date=2021-04-21|url=https://www.zdnet.com/article/new-windows-10-test-build-adds-first-preview-of-linux-gui-apps-on-wsl/|title=New Windows 10 test build adds first preview of Linux GUI apps on WSL|access-date=2021-04-23|website=ZDNet|language=en-US}}</ref>
