krunvm
crun
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krunvm | crun | |
---|---|---|
10 | 30 | |
1,341 | 2,787 | |
1.9% | 3.5% | |
5.6 | 9.3 | |
2 months ago | 4 days ago | |
Rust | C | |
Apache License 2.0 | GNU General Public License v3.0 only |
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.
krunvm
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Show HN: Isolated microVM-based self-hosted GitHub runners
This project creates self-hosted (ephemeral) GitHub runners based on krunvm [1]. krunvm creates microVMs, so the project enables fully isolated runners inside your infrastruture. MicroVMs boot fast, providing an experience close to running containers. The project starts VMs based on the multi-platform OCI images that it creates -- ubuntu [2](default) or fedora [3]. The default is to create far-less capable runners than the GitHub runners, but most settings are similar to when running at GitHub: same user ID, member of the `docker` group, password-less `sudo`, etc. Since krunvm runs on MacOS, this should also run on MacOS -- although I haven't been able to test it: reports and/or PRs are welcome.
[1]: https://github.com/containers/krunvm
- Ask HN: Best way to run Linux VMs on M1 Mac with fileSharing/shared networking?
- krunvm
- Krunvm – Create MicroVMs from OCI Images
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How to create a kvm virtual machine without a gui?
An interesting alternative is krunvm. On my MacBook Pro M1 it takes less than a second to start a VM and get a Linux shell prompt with krunvm . When I boot up a Fedora CoreOS on the same computer it takes about 17 seconds. Note though that krunvm is for managing lightweight VMs created from OCI images.
- Execute Docker Containers as QEMU MicroVMs
- krunvm is a CLI-based utility for managing lightweight VMs created from OCI images
- Show HN: krunvm – Create and run lightweight VMs from OCI images
crun
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Show HN: dockerc – Docker image to static executable "compiler"
Yep pretty much.
The executables bundle crun (a container runtime)[0], and a fuse implementation of squashfs and overlayfs. Appended to that is a squashfs of the image.
At runtime the squashfs and overlayfs are mounted and the container is started.
[0]: https://github.com/containers/crun
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Howto: WASM runtimes in Docker / Colima
cpu: 4 disk: 60 memory: 12 arch: host hostname: colima autoActivate: true forwardAgent: false # I only tested this with 'docker', not 'containerd': runtime: docker kubernetes: enabled: false version: v1.24.3+k3s1 k3sArgs: [] network: address: true dns: [] dnsHosts: host.docker.internal: host.lima.internal # Added: # - containerd-snapshotter: true (meaning containerd will be used for pulling images) # - default-runtime / runtimes: crun (instead of the default 'runc') docker: default-runtime: crun features: buildkit: true containerd-snapshotter: true runtimes: crun: path: /usr/local/bin/crun vmType: vz rosetta: true mountType: virtiofs mountInotify: false cpuType: host # This provisioning script installs WasmEdge and builds crun with wasmedge support: provision: - mode: system script: | [ -f /etc/docker/daemon.json ] && echo "Already provisioned!" && exit 0 echo "Install system updates:" apt-get update -y apt-get upgrade -y echo "Install WasmEdge and crun dependencies:" # NOTE: packages curl git python3 already installed: apt-get install -y make gcc build-essential pkgconf libtool libsystemd-dev libprotobuf-c-dev libcap-dev libseccomp-dev libyajl-dev libgcrypt20-dev go-md2man autoconf automake criu apt-get clean -y - mode: user script: | [ -f /etc/docker/daemon.json ] && echo "Already provisioned!" && exit 0 echo "Installing WasmEdge:" curl -sSf https://raw.githubusercontent.com/WasmEdge/WasmEdge/master/utils/install.sh | sudo bash -s -- -p /usr/local echo echo "`wasmedge -v` installed!" # NOTE: I failed to Configure Wasmtime properly - turned off for now: #echo "Installing Wasmtime:" #curl -sSf https://wasmtime.dev/install.sh | bash #sudo cp .wasmtime/bin/* /usr/local/bin/ #rm -rf .wasmtime #echo "`wasmtime -V` installed!" echo "Install crun:" git clone https://github.com/containers/crun cd crun ./autogen.sh #./configure --with-wasmedge --with-wasmtime ./configure --with-wasmedge make sudo make install crun -v echo "crun installed! Replacing runc with crun:" # NOTE: replacing runc with runc is to simplify containerd config TRC=`which runc` sudo rm -rf $TRC sudo cp `which crun` $TRC echo "Configuring containerd:" sudo mkdir -p /etc/containerd/ containerd config default | sudo tee /etc/containerd/config.toml >/dev/null echo "Restarting/reloading docker/containerd services:" sudo systemctl daemon-reload sudo systemctl restart containerd # As soon as Colima writes its /etc/docker/daemon.json file (right after this provisioning script), # it will also start the Docker daemon. If we stop Docker here, the changes will actually take effect: sudo systemctl stop docker sshConfig: true mounts: [] env: {}
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Google assigns a CVE for libwebp and gives it a 10.0 score
On this note, I was really surprised to find Red Hat's OCI runtime is written in C: https://github.com/containers/crun
Is anyone working on a Rust version?
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US Cybersecurity: The Urgent Need for Memory Safety in Software Products
It's interesting that, in light of things like this, you still see large software companies adding support for new components written in non-memory safe languages (e.g. C)
As an example Red Hat OpenShift added support for crun(https://github.com/containers/crun) this year(https://cloud.redhat.com/blog/whats-new-in-red-hat-openshift...), which is written in C as an alternative to runc, which is written in Go(https://github.com/opencontainers/runc)...
- Barco: Linux Containers from Scratch in C
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Crun: Fast and lightweight OCI runtime and C library for running containers
Kubernetes needs an OCI runtime to run containers with. Crun is one implementation it can use.
Docker also appears to be able to use crun for it's engine as well. https://github.com/containers/crun/issues/37
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Best virtualization solution with Ubuntu 22.04
crun
- Why did the Krustlet project die?
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Is this an incompatibility with docker or an I doing something else wrong?
Looks like https://github.com/containers/crun/issues/255 - start there.
What are some alternatives?
firecracker - Secure and fast microVMs for serverless computing.
runc - CLI tool for spawning and running containers according to the OCI specification
libkrunfw - A dynamic library bundling the guest payload consumed by libkrun
youki - A container runtime written in Rust
slim - Build and run tiny vms from Dockerfiles. Small and sleek.
cri-o - Open Container Initiative-based implementation of Kubernetes Container Runtime Interface
libkrun - A dynamic library providing Virtualization-based process isolation capabilities
podman - Podman: A tool for managing OCI containers and pods.
harvester - Open source hyperconverged infrastructure (HCI) software
wasm-micro-runtime - WebAssembly Micro Runtime (WAMR)
lima - Linux virtual machines, with a focus on running containers
runtime-tools - OCI Runtime Tools