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Last active Nov 5, 2022
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#!/bin/sh -e
# apt-get install curl wget xz-utils apt-utils
# Converts OpenVZ VPS to Alpine Linux
# WARNING: This script will wipe any data in your VPS!
# GPLv2; Partly based on
path=$(wget -O- ${server}/meta/1.0/index-system | grep -v $version | awk '-F;' '($1=="alpine" && $3=="amd64") {print $NF}' | tail -1)
cd /
mkdir -p /x
wget ${server}/${path}/rootfs.tar.xz
tar -C /x -xf rootfs.tar.xz
sed -i '/getty/d' /x/etc/inittab
sed -i 's/rc_sys="lxc"/rc_sys="openvz"/' /x/etc/rc.conf
# save root password and ssh directory
sed -i '/^root:/d' /x/etc/shadow
grep '^root:' /etc/shadow >> /x/etc/shadow
[ -d /root/.ssh ] && cp -a /root/.ssh /x/root/
# save network configuration
ip=$(ip addr show dev $dev | grep global | awk '($1=="inet") {print $2}' | cut -d/ -f1 | head -1)
cat > /x/etc/network/interfaces << EOF
auto lo
iface lo inet loopback
auto $dev
iface $dev inet static
address $ip
up ip route add default dev $dev
hostname $hostname
cp /etc/resolv.conf /x/etc/resolv.conf
# remove all old files and replace with alpine rootfs
find / \( ! -path '/dev/*' -and ! -path '/proc/*' -and ! -path '/sys/*' -and ! -path '/x/*' \) -delete || true
/x/lib/ /x/bin/busybox cp -a /x/* /
export PATH="/usr/sbin:/usr/bin:/sbin:/bin"
rm -rf /x
apk update && apk upgrade
apk add bash util-linux python3 iproute2 curl mc nano rsync htop vnstat iperf3 nfs-utils e2fsprogs-extra wireguard-tools mtr ncdu mlocate
apk add gcc py3-pip python3-dev libc-dev linux-headers sysstat
apk add --no-cache --repository --repository dropbear dropbear-scp dropbear-ssh
apk add --no-cache --repository wireguard-go
rc-update add dropbear default
rc-update add vnstatd default
rc-update add mdev sysinit
rc-update add devfs sysinit
rc-update add sysctl default
rc-update add iptables sysinit
reboot -f
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