#!/bin/bash -ex
# vi: ts=4 noexpandtab
#
# Generate a squashfs root and manifest

set -x

echo "031-maas-squashfs.binary"

case $IMAGE_TARGETS in
	""|*squashfs*)
		;;
	*)
		echo "Skipping squashfs build"
		exit 0
		;;
esac

if [ -n "$SUBARCH" ]; then
	echo "Skipping rootfs build for subarch flavor build"
	exit 0
fi

. config/functions
. config/common

SQUASH_ROOT=binary/boot/squashfs.dir

RACK_ROOT=binary/boot/squashfs-rack.dir
REGION_ROOT=binary/boot/squashfs-region.dir

OVERLAY_RACK_ROOT=binary/overlay-maas-rack
OVERLAY_REGION_ROOT=binary/overlay-maas-region

mkdir -p "$RACK_ROOT"
mkdir -p "$REGION_ROOT"

mkdir -p "$OVERLAY_RACK_ROOT"
mkdir -p "$OVERLAY_REGION_ROOT"

# RACK is on top of the regular squashfs

mount_overlay "$SQUASH_ROOT/" "$OVERLAY_RACK_ROOT/" "$RACK_ROOT/"

setup_mountpoint $RACK_ROOT
env DEBIAN_FRONTEND=noninteractive chroot $RACK_ROOT apt-get -y install maas-rack-controller
rm -f $RACK_ROOT/etc/maas/rackd.conf
chroot $RACK_ROOT sh -c 'echo RESET maas/default-maas-url | debconf-communicate maas-common'
chroot $RACK_ROOT sh -c 'echo RESET maas-rack-controller/maas-url | debconf-communicate maas-common'
chroot $RACK_ROOT sh -c 'echo RESET maas-rack-controller/maas-url | debconf-communicate maas-rack-controller'
teardown_mountpoint $RACK_ROOT

umount "$RACK_ROOT"

# Full MAAS (Region) is on top of the rack
# in overlayfs lowerdir are mounted right to left, colon separated
mount_overlay "$OVERLAY_RACK_ROOT/:$SQUASH_ROOT/" "$OVERLAY_REGION_ROOT/" "$REGION_ROOT/"

setup_mountpoint $REGION_ROOT

env DEBIAN_FRONTEND=noninteractive chroot $REGION_ROOT apt-get -y install maas

# Forget how things had to be configured
chroot $REGION_ROOT debconf -fnoninteractive -omaas-region-controller /var/lib/dpkg/info/maas-region-controller.prerm remove
chroot $REGION_ROOT debconf -fnoninteractive -omaas-region-controller /var/lib/dpkg/info/maas-region-controller.postrm remove
chroot $REGION_ROOT debconf -fnoninteractive -omaas-region-controller /var/lib/dpkg/info/maas-region-controller.postrm purge
chroot $REGION_ROOT sh -c 'echo RESET maas/default-maas-url | debconf-communicate maas-common'
chroot $REGION_ROOT sudo -u postgres psql -c 'alter role maas password null;'
rm -f $REGION_ROOT/etc/maas/rackd.conf
rm -f $REGION_ROOT/etc/maas/regiond.conf
chroot $REGION_ROOT pg_ctlcluster $(/bin/ls $REGION_ROOT/var/lib/postgresql/) main stop || :

# After the install, one may call the below to "reconfigure" maas-region-controller
## debconf -fnoninteractive -omaas-region-controller /var/lib/dpkg/info/maas-region-controller.config configure
## debconf -fnoninteractive -omaas-region-controller /var/lib/dpkg/info/maas-region-controller.postinst configure

teardown_mountpoint "$REGION_ROOT"

umount "$REGION_ROOT"

squashfs_rack_f="${PWD}/livecd.${PROJECT}.maas-rack.squashfs"

(cd "$OVERLAY_RACK_ROOT/" &&
      mksquashfs . ${squashfs_rack_f} \
        -no-progress -xattrs -comp xz )

squashfs_region_f="${PWD}/livecd.${PROJECT}.maas-region.squashfs"

(cd "$OVERLAY_REGION_ROOT/" &&
      mksquashfs . ${squashfs_region_f} \
        -no-progress -xattrs -comp xz )