this post was submitted on 20 Sep 2023
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Linux
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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Don't forget configuration. A properly built Docker image can be configured purely via environment variables, which are all in one place. That's much more transparent than having 20 locations with tiny changes to the defaults.
There are obviously edge cases where this doesn't work, but even then you still have a just a bundle of config files in one place.