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this post was submitted on 23 Dec 2024
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Linux
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From Wikipedia, the free encyclopedia
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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Generally speaking you shouldn't be poking around running containers. It is rare that I have ever needed to do that. If you want to inspect the contents of an image then tools like dive are helpful. If the container produces some useful output that you might need then put that into a volume, you can then mount that volume to a debug/inspect container to read the files without messing around with the rest of the container.
Shell-less containers are a great security feature - it is extremely hard to get a reverse shell on something that does not have any shell. And if you must have a shell to debug something docker already has a feature for that docker debug which works for shell-less containers as well.