Add a separate make(1) target to release/Makefile to

build FreeBSD virtual machine disk images for use on
the Microsoft Azure service.

For now, this target is not directly connected to the
build, however can be manually invoked.

The 'vm-azure' target invokes {amd64,i386}/mk-azure.sh,
which does the heavy lifting to produce proper VHDs.
mk-azure.sh uses a configuration file, defaulting to
tools/azure.conf if otherwise unset.

Sponsored by:	The FreeBSD Foundation

1 files changed, 171 insertions, 0 deletions

diff --git a/release/amd64/mk-azure.sh b/release/amd64/mk-azure.sh
new file mode 100755
index 000000000000..b691d54f6a69
--- /dev/null
+++ b/release/amd64/mk-azure.sh
@@ -0,0 +1,171 @@
+#!/bin/sh
+#-
+# Copyright (c) 2014 The FreeBSD Foundation
+# All rights reserved.
+#
+# This software was developed by Glen Barber under sponsorship
+# from the FreeBSD Foundation.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# mk-azure.sh: Create virtual machine disk images for Microsoft Azure
+#
+# $FreeBSD$
+#
+
+export PATH="/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin"
+
+usage() {
+	echo "Usage:"
+	echo -n "$(basename ${0}) vm-azure <base image>"
+	echo " <source tree> <dest dir> <disk image size> <vm image name>"
+	exit 1
+}
+
+panic() {
+	msg="${@}"
+	printf "${msg}\n"
+	if [ ! -z "${mddev}" ]; then
+		mdconfig -d -u ${mddev}
+	fi
+	# Do not allow one failure case to chain through any remaining image
+	# builds.
+	exit 0
+}
+
+vm_create_azure() {
+	# Arguments:
+	# vm-azure <base image> <source tree> <dest dir> <disk image size> <vm image name>
+
+	VMBASE="${1}"
+	WORLDDIR="${2}"
+	DESTDIR="${3}"
+	VMSIZE="${4}"
+	VMIMAGE="${5}"
+
+	if [ -z "${VMBASE}" -o -z "${WORLDDIR}" -o -z "${DESTDIR}" \
+		-o -z "${VMSIZE}" -o -z "${VMIMAGE}" ]; then
+			usage
+	fi
+
+	trap "umount ${DESTDIR}/dev ${DESTDIR}" EXIT
+
+	i=0
+	mkdir -p ${DESTDIR}
+	truncate -s ${VMSIZE} ${VMBASE}
+	mddev=$(mdconfig -f ${VMBASE})
+	newfs -j /dev/${mddev}
+	mkdir -p ${DESTDIR}
+	mount /dev/${mddev} ${DESTDIR}
+	make -C ${WORLDDIR} DESTDIR=$(realpath ${DESTDIR}) \
+		installworld installkernel distribution || \
+		panic 1 "\n\nCannot install the base system to ${DESTDIR}."
+	mount -t devfs devfs ${DESTDIR}/dev
+	chroot ${DESTDIR} /usr/bin/newaliases
+	echo '# Custom /etc/fstab for FreeBSD VM images' \
+		> ${DESTDIR}/etc/fstab
+	echo '/dev/gpt/rootfs	/	ufs	rw	2	2' \
+		>> ${DESTDIR}/etc/fstab
+	# Although a swap partition is created, it is not used in Azure.
+	echo '#/dev/gpt/swapfs	none	swap	sw	0	0' \
+		>> ${DESTDIR}/etc/fstab
+
+	chroot ${DESTDIR} /etc/rc.d/ldconfig forcestart
+	chroot ${DESTDIR} env ASSUME_ALWAYS_YES=yes /usr/sbin/pkg bootstrap -y
+	chroot ${DESTDIR} env ASSUME_ALWAYS_YES=yes /usr/sbin/pkg install -y \
+	        python python2 python27 py27-asn1 sudo bash
+	if [ ! -z "${VM_EXTRA_PACKAGES}" ]; then
+	        chroot ${DESTDIR} env ASSUME_ALWAYS_YES=yes /usr/sbin/pkg install -y \
+	                ${VM_EXTRA_PACKAGES}
+	fi
+
+	fetch -o ${DESTDIR}/usr/sbin/waagent \
+		http://people.freebsd.org/~gjb/waagent
+	chmod +x ${DESTDIR}/usr/sbin/waagent
+	rm -f ${DESTDIR}/etc/resolv.conf
+	chroot ${DESTDIR} /usr/sbin/waagent -verbose -install
+	yes | chroot ${DESTDIR} /usr/sbin/waagent -deprovision
+	echo 'sshd_enable="YES"' > ${DESTDIR}/etc/rc.conf
+	echo 'ifconfig_hn0="SYNCDHCP"' >> ${DESTDIR}/etc/rc.conf
+	echo 'waagent_enable="YES"' >> ${DESTDIR}/etc/rc.conf
+
+	echo 'console="comconsole vidconsole"' >> ${DESTDIR}/boot/loader.conf
+	echo 'comconsole_speed="115200"' >> ${DESTDIR}/boot/loader.conf
+
+	if [ ! -z "${VM_RC_LIST}" ]; then
+		for _rcvar in ${VM_RC_LIST}; do
+			echo ${_rcvar}_enable="YES" >> ${DESTDIR}/etc/rc.conf
+		done
+	fi
+
+	sync
+
+	while ! umount ${DESTDIR}/dev ${DESTDIR}; do
+		i=$(( $i + 1 ))
+		if [ $i -ge 10 ]; then
+			# This should never happen.  But, it has happened.
+			msg="Cannot umount(8) ${DESTDIR}\n"
+			msg="${msg}Something has gone horribly wrong."
+			panic 1 "${msg}"
+		fi
+		sleep 1
+	done
+
+	mkimg -f vhdf -s gpt \
+		-b /boot/pmbr -p freebsd-boot/bootfs:=/boot/gptboot \
+		-p freebsd-swap/swapfs::1G \
+		-p freebsd-ufs/rootfs:=${VMBASE} \
+		-o ${VMIMAGE}.raw
+
+	if [ ! -x "/usr/local/bin/qemu-img" ]; then
+		env ASSUME_ALWAYS_YES=yes pkg install -y emulators/qemu-devel
+	fi
+
+	size=$(qemu-img info -f raw --output json ${VMIMAGE}.raw | awk '/virtual-size/ {print $2}' | tr -d ',')
+	size=$(( ( ${size} / ( 1024 * 1024 ) + 1 ) * ( 1024 * 1024 ) ))
+	qemu-img resize ${VMIMAGE}.raw ${size}
+	qemu-img convert -f raw -o subformat=fixed -O vpc ${VMIMAGE}.raw ${VMIMAGE}
+
+	return 0
+}
+
+main() {
+	cmd="${1}"
+	shift 1
+
+	if [ -e "${AZURECONF}" -a ! -c "${AZURECONF}" ]; then
+		. ${AZURECONF}
+	fi
+
+	case ${cmd} in
+		vm-azure)
+			eval vm_create_azure "$@" || return 0
+			;;
+		*|\?)
+			usage
+			;;
+	esac
+
+	return 0
+}
+
+main "$@"