livecd-rootfs/live-build/ubuntu-server/hooks/032-installer-squashfs.binary

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

set -x

echo "032-installer-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

SQUASH_ROOT=binary/boot/squashfs.dir
OVERLAY_ROOT=binary/boot/overlay.dir

mkdir -p "$OVERLAY_ROOT"

setup_mountpoint binary/boot/squashfs.dir

# Create an installer squashfs layer
mount_overlay "$SQUASH_ROOT/" "$OVERLAY_ROOT/" "$SQUASH_ROOT/"

# Prepare installer layer.

# Install any requirements for the installer, for things we don't want
# to see on the installed system
chroot $SQUASH_ROOT apt-get update
chroot $SQUASH_ROOT apt-get -y install user-setup
chroot $SQUASH_ROOT apt-get -y install curtin

# Don't let cloud-init run in the live session.
touch $SQUASH_ROOT/etc/cloud/cloud-init.disabled

# Do the snap seeding dance.
chroot $SQUASH_ROOT mkdir -p /var/lib/snapd/seed/snaps /var/lib/snapd/seed/assertions
chroot $SQUASH_ROOT sh -c '
set -x;
cd /var/lib/snapd/seed;
sudo SNAPPY_STORE_NO_CDN=1 snap download core;
sudo SNAPPY_STORE_NO_CDN=1 snap download --channel=edge subiquity;

CORE_SNAP=$(ls -1 core*.snap);
SUBIQUITY_SNAP=$(ls -1 subiquity*.snap);

mv *.assert /var/lib/snapd/seed/assertions/;
mv *.snap /var/lib/snapd/seed/snaps/;

cat <<EOF > /var/lib/snapd/seed/seed.yaml
snaps:
 - name: core
   channel: stable
   file: ${CORE_SNAP}
 - name: subiquity
   channel: edge
   classic: true
   file: ${SUBIQUITY_SNAP}
EOF
'

cat <<EOF > $SQUASH_ROOT/var/lib/snapd/seed/assertions/cyphermox.account
type: account
authority-id: canonical
account-id: H0szZPjHTU4x04XeYjLyv8tJqYXq7cYk
display-name: Mathieu Trudel
timestamp: 2016-09-12T20:11:03.478544Z
username: cyphermox
validation: unproven
sign-key-sha3-384: BWDEoaqyr25nF5SNCvEv2v7QnM9QsfCc0PBMYD_i2NGSQ32EF2d4D0hqUel3m8ul

AcLBUgQAAQoABgUCV9cL1wAAbQIQAEa8X5Bf2achG/9gC2d9YHWE+Uk9/FXK58bZ4Ym5VDTPW2Es
BZOTMA6ROcCrii8/HM88+5bKGGoYLVNjfYUosYfR31kkFT1z1payhs4zfhANTBHXQpeNlGASm9ua
O1UkBNFJwYu+tRh9gsY5wuryjfxXndS2pzUm2fXlFB4I/FgQEZnKJP99C3H0cUkGHzEwadRc7vqu
/B+mmlwX/pgzlUwt3EXkCpx0hvN4ZgSzyKAtLn+ij2XSe4MxptT/uGCY2tnqsSa+H6J+O0RYENYD
Xa7MJLXSGS9iqOwBkTO5X1eHSNPUs0LqzAqz4zTL5Kd9c/ohFwPzZpO8ltLA2nhKEfHzofMsMjEi
qwhCDQ5LZD93dQ/VWzmmrCi9cmy+mci7K+hEYLtopzbkMl7cFBVVc2pQlTArspsFy9aMurCs4m8K
GfGJOmvYP4Rnn8YYVLtAIPbGADAzG4mxBDxc8r+NRCprDIJmVHed/aQo6gNNip6VHi7xORnAJYRI
0XQThASCRYzZxEBv3iND0GzAlRdlOLA+x+jRt2CDg0qLQ5DmuXGePEkEyJEMQb+OBsFHrPcvX1UI
eHoKL9ZyvcrhsuPmG92P2UYiGp7qeKYmPQFsWNNh/R18tgingyJbm75pAE8MrpyZ1TTyDEYhwzbm
F5zdm4dy0k1EGMhTTDz/hzlE0Ugw
EOF

cat <<EOF > $SQUASH_ROOT/var/lib/snapd/seed/assertions/cyphermox-sn-test.account-key
type: account-key
authority-id: canonical
public-key-sha3-384: vihTQiNMkgsi2g39sggy3k4EVGrkFyWMof_nIrCbhxSOO7U00PRD_TDeWrpqGNor
account-id: H0szZPjHTU4x04XeYjLyv8tJqYXq7cYk
name: cyphermox-sn-test
since: 2017-03-14T21:24:50Z
body-length: 717
sign-key-sha3-384: BWDEoaqyr25nF5SNCvEv2v7QnM9QsfCc0PBMYD_i2NGSQ32EF2d4D0hqUel3m8ul
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AcLBUgQAAQoABgUCWMhfrAAAXn4QALo795LKWhSNlzI7KIz3hq6rFK1YVDbj3KXW8xoF1FEwyE51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EOF

cat <<EOF > $SQUASH_ROOT/var/lib/snapd/seed/assertions/cyphermox-classic.model
type: model
authority-id: H0szZPjHTU4x04XeYjLyv8tJqYXq7cYk
series: 16
brand-id: H0szZPjHTU4x04XeYjLyv8tJqYXq7cYk
model: cyphermox-test-classic
classic: true
timestamp: 2017-03-15T14:32:45+00:00
sign-key-sha3-384: vihTQiNMkgsi2g39sggy3k4EVGrkFyWMof_nIrCbhxSOO7U00PRD_TDeWrpqGNor
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EOF

mv resolv.conf.tmp "binary/boot/squashfs.dir/etc/resolv.conf"

# Unmount the overlay first, where it is mounted:
umount "$SQUASH_ROOT"

# Then we can start unmounting the "real" root:
umount "binary/boot/squashfs.dir/proc"
umount "binary/boot/squashfs.dir/sys"
umount "binary/boot/squashfs.dir/dev/pts"
umount "binary/boot/squashfs.dir/dev"
umount "binary/boot/squashfs.dir/tmp"

squashfs_f="${PWD}/livecd.${PROJECT}.installer.squashfs"

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