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linuxkit | documentation | |
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14 | 5 | |
8,133 | 454 | |
0.6% | - | |
9.2 | 6.1 | |
7 days ago | almost 3 years ago | |
Go | Shell | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
linuxkit
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Gokrazy – Go Appliances
Another project that aims to deliver this is Linuxkit (https://github.com/linuxkit/linuxkit). All the components they ship are written in memory safe languages (usually Go) and run as containers under containerd. You can build a custom image very easily, fully defined as a YAML file.
- How to connect to a docker container service when it's running on a mac?
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An overview of single-purpose Linux distributions
docker-the-company maintained https://github.com/linuxkit/linuxkit when I worked there. I have no idea who maintains it now, but it looks like it is still active (presumably still docker-the-company, since their adopters list [1] lists docker desktop).
[1]: https://github.com/linuxkit/linuxkit/blob/master/ADOPTERS.md
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Create a minimalist OS using Docker Containers and Hashicorp Packer
LF-Edge EVE project leverages Linuxkit to create custom OSs for Edge Devices which in turn leverages Containers as Lego Blocks
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RootFS Tooling
LinuxKit - Docker
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Unpopular opinion: I was promised lightweight containers but I got yet another VM
Behind the scenes Docker Desktop for Mac spawns a linuxkit VM with a bit of extra stuff like NFS to enable mounting Mac paths into containers. In the Docker Desktop settings you'll find the current resource assignment for that VM. That is pretty much reserved for docker so that it does not have to compete with MacOS processes for available resources.
- Open source components of Docker for Mac
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What happened to the nice Ansible cloud (provisioning) listing?
That said... you might want to check out linuxkit
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Ask HN: How are you using unikernels?
The definition of what a unikernel is needs to be narrowed down, a lot of these projects in the space (not all the ones listed above) have material differences that are not clear:
- some run only one language
- some require recompilation
- some essentially swap out libraries, others do something closer to dropping your already mostly static binary in a minimal disk image
- some build pid1 processes, others VMs images
Anyway, here are some additional entries in the space:
- https://ssrg-vt.github.io/hermitux/
- https://github.com/linuxkit/linuxkit (more embedded/minimal VM than unikernel)
- https://nabla-containers.github.io/ (runs on Solo5)
I am going through using Linuxkit to build AMIs for cloud providers now. I wouldn’t necessarily class linuxkit as a universal project because it doesn’t have the hallmark blurring of user and kernel space or kernel-as-a-library but you can customize the kernel so it’s an adjacent idea, and I think it’s the one most likely to be in actual use at non-hyperscalers.
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Unikraft: Fast, Specialized Unikernels the Easy Way
I believe there is growing interest in providing leaner, "trimmed" runtimes for services deployed to the cloud. Today, this is seen largely by specializing the Linux kernel for, for example, container services[0] or in general[1], as much as that is possible (the paper above covers this problem in greater detail). But, Unikernels in themselves are not yet widely adopted. This is the space Unikraft is aiming to enter, providing the ultimate level of specialization for a target application.
It's clear that bigger players, such as Red Hat[2] are interested in the topic of unikernels, and that cloud providers are preparing for this future too [3].
[0]: https://github.com/linuxkit/linuxkit
documentation
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Speed boost achievement unlocked on Docker Desktop 4.6 for Mac
Both Kata Containers and UTM support virtio-fs, so this is not strictly true. The former can be used as a stand-in replacement for the runtime used by docker desktop[1]. With the latter, one could use a UTM-backed guest as a docker runtime in macOS[2] or run docker directly on the guest[3].
[1] https://github.com/kata-containers/documentation/blob/master...
[2] https://www.codeluge.com/post/setting-up-docker-on-macos-m1-...
[3] https://www.lifeintech.com/2021/11/03/docker-performance-on-...
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Kubernetes Security Checklist 2021
For services with increased security requirements, it is recommended to use a low-level run-time with a high degree of isolation (gVisior, Kata-runtime)
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Kata Containers on GKE?
On the official Kata repo, I found a tutorial only for manually deployed Kubernetes on GCE.
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Monitoring Elixir Apps on Fly.io with Prometheus and PromEx
This is new and may not be used much, but it is possible to use part of Kata with part of Firecracker. https://github.com/kata-containers/documentation/wiki/Initia...
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Docker Without Docker
If it's using firecracker, it's probably using KVM virtualization while ensuring that the memory the VM consumes is not pinned... that is, that the VM can be swapped out of memory. For reference, firecracker was created by AWS to run and secure AWS Lambda. The hypervisor is written in rust and uses seccomp to eliminate unnecessary system calls. They open sourced it a few years back.
What you gain is a stronger security boundary. Just FYI, since 2019, you can also do this in Kubernetes using Kata containers which will happily shim firecracker. The setup is not simple though.
https://github.com/kata-containers/documentation/wiki/Initia...
Overall, fly.io building infrastructure on this pattern is fantastic and making it accessible is fantastic. Looking forward to seeing how this continues to evolve and am happy to see more infra build on top of firecracker. Very exciting!
What are some alternatives?
nanos - A kernel designed to run one and only one application in a virtualized environment
grype - A vulnerability scanner for container images and filesystems
unikraft - A next-generation cloud native kernel designed to unlock best-in-class performance, security primitives and efficiency savings.
kubevirt - Kubernetes Virtualization API and runtime in order to define and manage virtual machines.
lxd - Powerful system container and virtual machine manager [Moved to: https://github.com/canonical/lxd]
simplenetes - The sns tool is used to manage the full life cycle of your Simplenetes clusters. It integrates with the Simplenetes Podcompiler project podc to compile pods.
mirage - MirageOS is a library operating system that constructs unikernels
oci-seccomp-bpf-hook - OCI hook to trace syscalls and generate a seccomp profile
kata-containers - Kata Containers is an open source project and community working to build a standard implementation of lightweight Virtual Machines (VMs) that feel and perform like containers, but provide the workload isolation and security advantages of VMs. https://katacontainers.io/
krane - Kubernetes RBAC static analysis & visualisation tool
firecracker-container
cvehound - Check linux sources dump for known CVEs.