Flatcar
rpm-ostree
Flatcar | rpm-ostree | |
---|---|---|
20 | 47 | |
631 | 820 | |
1.4% | 2.0% | |
7.5 | 9.6 | |
13 days ago | 1 day ago | |
Python | C | |
Apache License 2.0 | GNU General Public License v3.0 or later |
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Flatcar
- Linux fu: getting started with systemd
- Bottlerocket β Minimal, immutable Linux OS with verified boot
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Wolfi: A community Linux OS designed for the container and cloud-native era
Sounds like you're looking for the CoreOS Linux successor FlatCar https://www.flatcar.org/
It's actually based on some ChromeOS update tools under the hood but is a regular Linux distro, just super minimal and designed to run containers.
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Flatcar Container Linux
I guess if you found my comment to be "comically hyperbolic" then replying to mine with a "comically reductionist" is fair game
So, anyway, I actually did dig up a concrete example of my experience with it, and I cannot link to the "Additional information" section but that is both why I think the thing was a mess and also why the Miroservices YT joke resonated: https://github.com/flatcar/Flatcar/issues/220
I think the CoreOS boot strategy was decomposed into a bunch of different executables, each responsible for doing their own little slice of the world. Maybe it drew inspiration from systemd in that way. But, just like my real life experience with microservices, it requires keeping a bunch of different projects and their upgrade paths in ones head, knowing their disparate config formats, and when one of them inevitably has a bug, understanding how to troubleshoot what went wrong with the system as a whole
And, again in trying to be reasonable in this discussion[1] I do also understand why one would opt for the data URI, given how much of the rest of Ignition loads content from URLs. I don't believe cloud-init has that remote content paradigm baked into in nearly the same way, so I hear you about that.
And yes, my belief is that JSON is a data-exchange format from _computer to computer_ and making people write them is a poor DX choice, IN MY OPINION. And, to reiterate, I know that CoreOS's perspective is that it is a computer-to-computer transmission from the transpiler-project-o-the-day to the Ignition binary, but that is predicated on one having access to that transpiler binary in all cases, which is quite different from the problem that cloud-init is trying to solve
fn-1: I'm sorry you got hurt by my "tire fire" outburst, and that evidently derailed this whole interaction, but it was my experience
- An overview of single-purpose Linux distributions
- Linux Distro for Running Docker Containers in VM - Ubuntu, Alpine, or...?
rpm-ostree
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What do you prefer more and why?
I definitely agree that immutability offers considerable value in regards to improving security. But arguably it's insufficient to pull the win over mutable Fedora due to the losses caused by the inability to install the kernel-hardened package and the lack of UKI (Unified Kernel Image) support.
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Looking to test out fedora Silverblue. I have only 1 question
Issue: https://github.com/coreos/rpm-ostree/issues/3944
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What is the difference between Immutable Desktops and non Immutable Desktops?
Oversimplifying might have been the most sensible in this context. However, you might have gone a little bit too far as your description fits only NixOS, Guix and distros that utilize rpm-ostree.
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Universal Blue is a new paradigm for the Linux desktop and it's brilliant
here's the documentation of ostree (the package manager)
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Fedora Silverblue 38: rpm-ostree crashes
Now... this was VERY alarming to say the least, so I went online and did indeed find an issue on GitHub.
- Fedora Linux 38 released!
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The New website is here, with modern UI. And getfedora.org redirect to fedoraproject.org with fresh look.π
And there are still some issues with layering. Some packages that don't behave or follow standards will modify files in /usr/local, which isn't supported, so you simply won't be able to install them on Silverblue. I think it's the same for /opt as well. (https://github.com/coreos/rpm-ostree/issues/233) This means it fundamentally can't do everything Workstation can, which is unfortunate.
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Flatcar Container Linux
ublue is based off of fedora and rpm-ostree, which is what "CoreOS" is today.
What happened was old school CoreOS was A/B partition based: https://github.com/coreos/docs/blob/master/os/sdk-disk-parti...
My memory is hazy but here's how I remember it: After Red Hat acquired CoreOS they rebased the entire thing around rpm-ostree, which is the CoreOS people know today: https://coreos.github.io/rpm-ostree/
At the time there was some anxiety in the community as to what would happen, as there was no direct upgrade path from old CoreOS to new CoreOS. Theoretically if we all believed the kool-aid we were drinking it's just a redeploy, no pets!
Kinvolk came along, forked it, and made Flatcar Linux, which kept the A/B partitioning system, and more crucially, let you just change a config file and all your old CoreOS nodes would just move to Flatcar and then you were good to go. So now if you wanted to stay on the system you were comfortable with you could just use Flatcar. If the composability of rpm-ostree attracted you then new CoreOS have you covered. Red Hat deserves a hat tip here because in their documentation/blog they explicitly mentioned Flatcar as an option for people who wanted to stick with what they know, which I thought was cool and how I discovered it!
Later on Microsoft acquired Kinvolk and and then people raised eyebrows. I have not checked in a while but the folks involved continued to do their thing and run it like a good OSS project, hold public meetings, all that stuff.
I use both and they're both high quality.
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Immutable Linux Distributions for Those Looking to Embrace the Future
Whenever I was looking at using CoreOS, I was somewhat disheartened that automatic reboots weren't built in: https://github.com/coreos/rpm-ostree/issues/2831. Has this changed? I know zincati has maintenance window support, which would also be nice to have.
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[HELP] AMD REST BUG
Doesn't look like it https://github.com/coreos/rpm-ostree/issues/1091
What are some alternatives?
bottlerocket - An operating system designed for hosting containers
ostree - Operating system and container binary deployment and upgrades
harvester - Open source hyperconverged infrastructure (HCI) software
vscode-remote-release - Visual Studio Code Remote Development: Open any folder in WSL, in a Docker container, or on a remote machine using SSH and take advantage of VS Code's full feature set.
talos - Talos Linux is a modern Linux distribution built for Kubernetes.
openvpn-install - OpenVPN road warrior installer for Ubuntu, Debian, AlmaLinux, Rocky Linux, CentOS and Fedora
typhoon - Minimal and free Kubernetes distribution with Terraform
cxx - Safe interop between Rust and C++
elemental-toolkit - :snowflake: The toolkit to build, ship and maintain cloud-init driven Linux derivatives based on container images
tectonic - A modernized, complete, self-contained TeX/LaTeX engine, powered by XeTeX and TeXLive.
inspektor-gadget - The eBPF tool and systems inspection framework for Kubernetes, containers and Linux hosts.
distrobox - Use any linux distribution inside your terminal. Enable both backward and forward compatibility with software and freedom to use whatever distribution youβre more comfortable with. Mirror available at: https://gitlab.com/89luca89/distrobox