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54 lines
1.9 KiB
Markdown
54 lines
1.9 KiB
Markdown
# Raspberry Pi OS
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1. [Store files on the SD even when the overlay file system is active](#store-files-on-the-sd-even-when-the-overlay-file-system-is-active)
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2. [Make it able to run containers](#make-it-able-to-run-containers)
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1. [Kernel containerization features](#kernel-containerization-features)
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2. [Firewall settings](#firewall-settings)
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3. [Sources](#sources)
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## Store files on the SD even when the overlay file system is active
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The files just need to be stored on a different file system from `/`. You can partition the SD and use that, or create a file and mount it as a virtual file system:
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```sh
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truncate -s '6G' 'file'
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mkfs.ext4 'file'
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mkdir 'mount/point'
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sudo mount -t 'ext4' -o 'loop' 'file' 'mount/point'
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sudo chown 'user':'group' 'mount/point'
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touch 'mount/point/new-file'
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```
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## Make it able to run containers
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### Kernel containerization features
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Enable containerization features in the kernel to be able to run containers as intended.
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Add the following properties at the end of the line in `/boot/cmdline.txt`:
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```sh
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cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory
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```
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### Firewall settings
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Switch Debian firewall to legacy config:
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```sh
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update-alternatives --set iptables /usr/sbin/iptables-legacy
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update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
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```
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## Sources
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- The [k3s] project page
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- The [Build your very own self-hosting platform with Raspberry Pi and Kubernetes] series of articles
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- [Run Kubernetes on a Raspberry Pi with k3s]
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- Project's [issue 2067]
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[build your very own self-hosting platform with raspberry pi and kubernetes]: https://kauri.io/build-your-very-own-self-hosting-platform-with-raspberry-pi-and-kubernetes/5e1c3fdc1add0d0001dff534/c
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[issue 2067]: https://github.com/k3s-io/k3s/issues/2067#issuecomment-664052806
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[k3s]: https://k3s.io/
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[run kubernetes on a raspberry pi with k3s]: https://opensource.com/article/20/3/kubernetes-raspberry-pi-k3s
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