#! /bin/bash

set -ex

BASE=$(dirname $(dirname $0))

out=$1
arch=$2
virt_builder_image="$3"
if [ -n "$4" ]; then
    apt_source="$4"
fi

if [ "$VIRT_BUILDER_NO_CACHE" == "yes" ]; then
    virt_builder_caching="--no-cache"
fi

# 18.04 virt-builder image has an invalid apt proxy leftover; delete it
virt-builder $virt_builder_image \
             $virt_builder_caching \
             --output "$out" \
             --size 8G \
             --format qcow2 \
             --arch "$arch" \
             --root-password password:foobar \
             --ssh-inject root:file:$BASE/../../machine/identity.pub \
             --upload $BASE/../../machine/host_key:/etc/ssh/ssh_host_rsa_key \
             --chmod 0600:/etc/ssh/ssh_host_rsa_key \
             --upload $BASE/../../machine/host_key.pub:/etc/ssh/ssh_host_rsa_key.pub \
             ${apt_source:+--write /etc/apt/sources.list:"$apt_source"} \
             --write /etc/apt/apt.conf.d/90nolanguages:'Acquire::Languages "none";' \
             --run-command "sed -i 's/GRUB_TIMEOUT.*/GRUB_TIMEOUT=0/; /GRUB_CMDLINE_LINUX=/ s/"'"'"$/ console=ttyS0,115200 net.ifnames=0 biosdevname=0"'"'"/' /etc/default/grub" \
             --run-command "update-grub" \
             --run-command "sed -i 's/ens[^[:space:]:]*/eth0/' /etc/network/interfaces /etc/netplan/*.yaml || true" \
             --run-command "rm --verbose -f /etc/apt/apt.conf" \
             --run-command "export DEBIAN_FRONTEND=noninteractive; apt-get -y update; apt-get -y install eatmydata; eatmydata apt-get -y dist-upgrade"