firecracker-netns/rootf-kernel/alpine-rootfs.sh

#!/bin/bash

set -ex

DISK_SIZE=10G
DISK_FILE=../out/alpine-rootfs.ext4
DISK_ROOT=../out/mount

# Allocate rootfs disk
fallocate -l "$DISK_SIZE" "$DISK_FILE"
mkfs.ext4 -F $DISK_FILE

# Mount rootfs to mount
mkdir -p $DISK_ROOT

sudo mount $DISK_FILE $DISK_ROOT

wget -O ../out/alpine-minirootfs-3.19.0-x86_64.tar.gz https://dl-cdn.alpinelinux.org/alpine/v3.19/releases/x86_64/alpine-minirootfs-3.19.0-x86_64.tar.gz

tar xvf ../out/alpine-minirootfs-3.19.0-x86_64.tar.gz --directory="$DISK_ROOT"


#sudo umount $DISK_ROOT
#rmdir $DISK_ROOT