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#!/bin/bash
set -ex
arch="$(dpkg --print-architecture)"
case $arch in
amd64)
url="https://github.com/docker-library/busybox/raw/31d342ad033e27c18723a516a2274ab39547be27/stable/glibc/busybox.tar.xz"
;;
arm64)
url="https://github.com/docker-library/busybox/raw/94c664b5ca464546266bce54be0082874a44c7b2/stable/glibc/busybox.tar.xz"
;;
*)
echo >&2 "error: unsupported architecture: $arch"
exit 1
;;
esac
WORKDIR=$(mktemp -d)
trap "rm -rf $WORKDIR" 0 INT QUIT ABRT PIPE TERM
cd "$WORKDIR"
curl -o rootfs.tar.xz -fsSL --retry 5 "$url"
mkdir -p rootfs
tar --exclude './dev/*' -C rootfs -xf rootfs.tar.xz
runsc spec -- /bin/dmesg
runsc run hello
|
