https://github.com/afbjorklund/bean
small green OS for lima
https://github.com/afbjorklund/bean
Last synced: 7 months ago
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small green OS for lima
- Host: GitHub
- URL: https://github.com/afbjorklund/bean
- Owner: afbjorklund
- Created: 2021-10-02T16:32:52.000Z (about 4 years ago)
- Default Branch: master
- Last Pushed: 2021-10-15T19:16:36.000Z (almost 4 years ago)
- Last Synced: 2025-03-20T02:07:06.480Z (7 months ago)
- Homepage: https://github.com/lima-vm/lima
- Size: 61.5 KB
- Stars: 4
- Watchers: 4
- Forks: 0
- Open Issues: 4
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# bean
Creating a boot ISO with containerd/buildkitd, for lima.
Lima:
Lima launches Linux virtual machines, using [QEMU](https://www.qemu.org/).
> An image has to satisfy the following requirements:
>
> - systemd or OpenRC
> - cloud-init
> - The following binaries to be preinstalled:
> - `sudo`
> - `sshfs`
> - `newuidmap` and `newgidmap` (shadow)
Format:
- `disk.img`
- kernel (bzImage)
- rootfs (rootfs.ext4)
- `cidata.iso`
- `user-data` (cloud-init)
- generated by: `limactl`
Bootloader:
- UEFI (instead of BIOS)
- GRUB
Architecture:
- amd64 (`x86_64`)
- arm64 (`aarch64`)
Software:
- `sshd`
- `containerd`
- `buildkitd`
- `nerdctl`
Docker:
`nerdctl` is a Docker-compatible CLI for contai**nerd**. 🤓
nerdctl is a non-core sub-project of CNCF's [containerd](https://containerd.io/).
```console
# nerdctl build -t foo .
# nerdctl run -it --rm foo
```
Toolbox:
The regular image does **not** have a package manager,
but it is possible to install a toolbox container.
The default `toolbox` uses the `alpine` distribution.
That makes it possible to install `apk` packages.
`2.7M /var/lib/toolbox/alpine_latest.tar`
Based on [CoreOS Toolbox](https://github.com/coreos/toolbox), but using nerdctl.
Design:
This OS follows a layered "three images" approach:
1) Base OS, based on musl/busybox (like [Alpine](https://alpinelinux.org/))
2) "boot2nerdctl", adds containerd and buildkitd
3) Adding support for `python3` and `cloud-init`
---
qemu
pstree
```text
init-+-acpid
|-buildkitd---5*[{buildkitd}]
|-containerd---7*[{containerd}]
|-klogd
|-sshd---sshd---sshd-+-bash---pstree
| `-2*[sshfs---3*[{sshfs}]]
|-supervise-daemo---lima-guestagent---3*[{lima-guestagent}]
|-2*[supervise-daemo---getty]
|-syslogd
|-udevd
`-udhcpc
```
```console
$ lima nproc
4
$ lima free -m
total used free shared buff/cache available
Mem: 3942 47 3761 3 133 3837
Swap: 0 0 0
$ lima df -h /
Filesystem Size Used Available Use% Mounted on
/dev/root 96.9G 269.4M 92.6G 0% /
$ lima sudo nerdctl version
Client:
Version: 0.12.0
Git commit:
Server:
containerd:
Version: 1.4.9
GitCommit:
```
---
Building all the required software is done using [Buildroot](https://buildroot.org/).
The download is around 100 MB, with all batteries included.
```text
98M output/disk.img.gz
```
See [https://github.com/afbjorklund/buildroot4containers](https://github.com/afbjorklund/buildroot4containers/tree/lima)
---
There is currently no public release of Bean OS available.
Written by Anders F Björklund
---
Green Beans image credit: Designed by macrovector / [Freepik](http://www.freepik.com)