scripts to build a ubuntu qcow2 root image for kvm
This commit is contained in:
Jeffrey Paul
parent
937ac1d09f
commit
3c9e5fe87c
|
|
@ -0,0 +1,8 @@
|
||||||
|
default: gen
|
||||||
|
|
||||||
|
gen:
|
||||||
|
vagrant destroy -f
|
||||||
|
vagrant up
|
||||||
|
|
||||||
|
sync:
|
||||||
|
rsync -avP ./make.sh root@nue1d0.datavibe.net:/storage/buildimage/make.sh
|
||||||
|
|
@ -0,0 +1,65 @@
|
||||||
|
# -*- mode: ruby -*-
|
||||||
|
# vi: set ft=ruby :
|
||||||
|
|
||||||
|
# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
|
||||||
|
VAGRANTFILE_API_VERSION = "2"
|
||||||
|
|
||||||
|
SETUP_BASE = <<-EOF
|
||||||
|
|
||||||
|
echo "UseDNS no" >> /etc/ssh/sshd_config
|
||||||
|
service ssh restart
|
||||||
|
|
||||||
|
function detect_local_mirror () {
|
||||||
|
AL="$(avahi-browse -p -t -r _ubuntumirror._tcp | grep '^=' | head -1)"
|
||||||
|
if [ -n "$AL" ]; then
|
||||||
|
NAME="$(echo \"$AL\" | cut -d';' -f 8)"
|
||||||
|
PORT="$(echo \"$AL\" | cut -d';' -f 9)"
|
||||||
|
UM="http://${NAME}:${PORT}/ubuntu/"
|
||||||
|
MOK="$(curl --head \"${UM}ls-lR.gz\" 2>&1 | grep '200 OK' | wc -l)"
|
||||||
|
if [ $MOK -gt 0 ]; then
|
||||||
|
echo "$UM"
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
function set_apt_mirror () {
|
||||||
|
CN="$(lsb_release -c -s)"
|
||||||
|
RPS="main restricted multiverse universe"
|
||||||
|
echo "deb $1 $CN $RPS" > /etc/apt/sources.list.new
|
||||||
|
for P in updates backports security ; do
|
||||||
|
echo "deb $1 $CN-$P $RPS" >> /etc/apt/sources.list.new
|
||||||
|
done
|
||||||
|
mv /etc/apt/sources.list.new /etc/apt/sources.list
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
set_apt_mirror "mirror://mirrors.ubuntu.com/mirrors.txt"
|
||||||
|
apt-get update
|
||||||
|
apt-get -y install avahi-utils jq curl
|
||||||
|
|
||||||
|
UM="$(detect_local_mirror)"
|
||||||
|
if [ -n "$UM" ]; then
|
||||||
|
echo "Detected LAN ubuntu mirror at $UM - configuring!"
|
||||||
|
set_apt_mirror "$UM"
|
||||||
|
fi
|
||||||
|
echo "**********************************************************"
|
||||||
|
echo "**********************************************************"
|
||||||
|
cat /etc/apt/sources.list
|
||||||
|
echo "**********************************************************"
|
||||||
|
echo "**********************************************************"
|
||||||
|
apt-get update
|
||||||
|
apt-get -y install kpartx debootstrap lvm2 qemu-utils
|
||||||
|
EOF
|
||||||
|
|
||||||
|
|
||||||
|
Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
|
||||||
|
config.vm.box = "ubuntu-12.04"
|
||||||
|
config.vm.box_url = "http://cloud-images.ubuntu.com/vagrant/precise/" + \
|
||||||
|
"current/precise-server-cloudimg-amd64-vagrant-disk1.box"
|
||||||
|
config.vm.network "public_network", :bridge => "en4: Display Ethernet"
|
||||||
|
config.vm.provision "shell", inline: SETUP_BASE
|
||||||
|
config.vm.provision "shell", path: "buildimage.sh"
|
||||||
|
config.vm.provider :virtualbox do |vb|
|
||||||
|
vb.customize ["modifyvm", :id, "--memory", "2048"]
|
||||||
|
end
|
||||||
|
end
|
||||||
|
|
@ -0,0 +1,224 @@
|
||||||
|
#!/bin/bash
|
||||||
|
|
||||||
|
R="saucy" # release
|
||||||
|
MR="./roottemp" # mounted root
|
||||||
|
RI="./raw.img" # raw image
|
||||||
|
VGN="vmvg0" # volume group name
|
||||||
|
DSIZE="8G" # disk size
|
||||||
|
|
||||||
|
DATE="$(date +%Y%m%d)"
|
||||||
|
LOOPDEV="/dev/loop5"
|
||||||
|
LDBASE="$(basename $LOOPDEV)"
|
||||||
|
ROOTPW="7c493cc530734f4c11e00bcecadb7b73"
|
||||||
|
|
||||||
|
function detect_local_mirror () {
|
||||||
|
AL="$(avahi-browse -p -t -r _ubuntumirror._tcp | grep '^=' | head -1)"
|
||||||
|
UM=""
|
||||||
|
if [ -n "$AL" ]; then
|
||||||
|
NAME="$(echo \"$AL\" | cut -d\; -f 8)"
|
||||||
|
PORT="$(echo \"$AL\" | cut -d\; -f 9)"
|
||||||
|
UM="http://${NAME}:${PORT}/ubuntu/"
|
||||||
|
fi
|
||||||
|
if [ -z "$UM" ]; then
|
||||||
|
echo "http://archive.ubuntu.com/ubuntu/"
|
||||||
|
else
|
||||||
|
echo "$UM"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
UM="$(detect_local_mirror)"
|
||||||
|
|
||||||
|
set -e
|
||||||
|
dd if=/dev/zero of=$RI bs=1 count=0 seek=$DSIZE
|
||||||
|
parted -s $RI mklabel msdos
|
||||||
|
parted -a optimal $RI mkpart primary 0% 200MiB
|
||||||
|
parted -a optimal $RI mkpart primary 200MiB 100%
|
||||||
|
parted $RI set 1 boot on
|
||||||
|
losetup $LOOPDEV $RI
|
||||||
|
kpartx -av $LOOPDEV
|
||||||
|
mkfs.ext4 -L BOOT /dev/mapper/${LDBASE}p1
|
||||||
|
tune2fs -c -1 /dev/mapper/${LDBASE}p1
|
||||||
|
pvcreate /dev/mapper/${LDBASE}p2
|
||||||
|
vgcreate $VGN /dev/mapper/${LDBASE}p2
|
||||||
|
lvcreate -l 100%FREE -n root $VGN
|
||||||
|
mkfs.ext4 -L ROOT /dev/$VGN/root
|
||||||
|
mkdir -p $MR
|
||||||
|
mount /dev/$VGN/root $MR
|
||||||
|
mkdir $MR/boot
|
||||||
|
mount /dev/mapper/${LDBASE}p1 $MR/boot
|
||||||
|
|
||||||
|
# install base:
|
||||||
|
debootstrap --arch amd64 $R $MR $UM
|
||||||
|
|
||||||
|
# temporary config for install:
|
||||||
|
RPS="main restricted multiverse universe"
|
||||||
|
echo "deb $UM $R $RPS" > $MR/etc/apt/sources.list
|
||||||
|
for P in updates backports security ; do
|
||||||
|
echo "deb $UM $R-$P $RPS" >> $MR/etc/apt/sources.list
|
||||||
|
done
|
||||||
|
|
||||||
|
cp /etc/resolv.conf $MR/etc/resolv.conf
|
||||||
|
|
||||||
|
cat > $MR/etc/environment <<EOF
|
||||||
|
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
|
||||||
|
LANGUAGE="en_US:en"
|
||||||
|
LANG="en_US.UTF-8"
|
||||||
|
ROOT_IMAGE_BUILD_DATE="$DATE"
|
||||||
|
EOF
|
||||||
|
|
||||||
|
chroot $MR locale-gen en_US.UTF-8
|
||||||
|
chroot $MR dpkg-reconfigure locales
|
||||||
|
|
||||||
|
echo 'cd /dev && MAKEDEV generic 2>/dev/null' | chroot $MR
|
||||||
|
|
||||||
|
BUUID="$(blkid -s UUID -o value /dev/mapper/${LDBASE}p1)"
|
||||||
|
RUUID="$(blkid -s UUID -o value /dev/${VGN}/root)"
|
||||||
|
|
||||||
|
# this has to come before packages:
|
||||||
|
cat > $MR/etc/fstab <<EOF
|
||||||
|
proc /proc proc defaults 0 0
|
||||||
|
/dev/mapper/$VGN-root / ext4 noatime,errors=remount-ro 0 1
|
||||||
|
UUID=$BUUID /boot ext4 noatime 0 2
|
||||||
|
EOF
|
||||||
|
|
||||||
|
cat > $MR/etc/network/interfaces <<EOF
|
||||||
|
auto lo
|
||||||
|
iface lo inet loopback
|
||||||
|
|
||||||
|
auto eth0
|
||||||
|
iface eth0 inet dhcp
|
||||||
|
EOF
|
||||||
|
HOSTNAME="${R}64-$DATE"
|
||||||
|
echo "$HOSTNAME" > $MR/etc/hostname
|
||||||
|
|
||||||
|
cat > $MR/etc/hosts <<EOF
|
||||||
|
127.0.0.1 localhost
|
||||||
|
127.0.1.1 $HOSTNAME
|
||||||
|
::1 localhost ip6-localhost ip6-loopback
|
||||||
|
fe00::0 ip6-localnet
|
||||||
|
ff00::0 ip6-mcastprefix
|
||||||
|
ff02::1 ip6-allnodes
|
||||||
|
ff02::2 ip6-allrouters
|
||||||
|
ff02::3 ip6-allhosts
|
||||||
|
EOF
|
||||||
|
|
||||||
|
#### install and update packages
|
||||||
|
|
||||||
|
mount --bind /proc $MR/proc
|
||||||
|
mount --bind /dev $MR/dev
|
||||||
|
mount --bind /sys $MR/sys
|
||||||
|
|
||||||
|
chroot $MR <<EOF
|
||||||
|
export DEBIAN_FRONTEND=noninteractive
|
||||||
|
export RUNLEVEL=1 apt-get -y update
|
||||||
|
|
||||||
|
PACKAGES="
|
||||||
|
linux-image-server
|
||||||
|
lvm2
|
||||||
|
acpid
|
||||||
|
avahi-utils
|
||||||
|
"
|
||||||
|
apt-get -y install \$PACKAGES
|
||||||
|
EOF
|
||||||
|
|
||||||
|
echo "GRUB_CMDLINE_LINUX_DEFAULT=\"text serial=tty0 console=ttyS0\"" \
|
||||||
|
>> $MR/etc/default/grub
|
||||||
|
echo "GRUB_SERIAL_COMMAND=\"serial --unit=0 --speed=9600 --stop=1\"" \
|
||||||
|
>> $MR/etc/default/grub
|
||||||
|
echo "GRUB_TERMINAL=\"serial\"" >> $MR/etc/default/grub
|
||||||
|
echo "GRUB_GFXPAYLOAD=\"text\"" >> $MR/etc/default/grub
|
||||||
|
|
||||||
|
chroot $MR /bin/bash -c "echo \"root:$ROOTPW\" | chpasswd"
|
||||||
|
|
||||||
|
chroot $MR update-grub 2> /dev/null
|
||||||
|
chroot $MR grub-mkconfig -o /boot/grub/grub.cfg 2> /dev/null
|
||||||
|
cat > $MR/boot/grub/device.map <<EOF
|
||||||
|
(hd0) ${LOOPDEV}
|
||||||
|
EOF
|
||||||
|
chroot $MR grub-install ${LOOPDEV} 2> /dev/null
|
||||||
|
|
||||||
|
# get rid of device.map after grub is installed...
|
||||||
|
rm $MR/boot/grub/device.map
|
||||||
|
|
||||||
|
chroot $MR update-initramfs -d -k all
|
||||||
|
# for some stupid reason, -k all doesn't work after removing:
|
||||||
|
KERN="$(cd $MR/boot && ls vmlinuz*)"
|
||||||
|
VER="${KERN#vmlinuz-}"
|
||||||
|
chroot $MR update-initramfs -c -k $VER
|
||||||
|
|
||||||
|
cat > $MR/etc/init/ttyS0.conf <<EOF
|
||||||
|
# ttyS0 - getty
|
||||||
|
# run a getty on the serial console
|
||||||
|
start on stopped rc or RUNLEVEL=[12345]
|
||||||
|
stop on runlevel [!12345]
|
||||||
|
respawn
|
||||||
|
exec /sbin/getty -L 115200 ttyS0 vt102
|
||||||
|
EOF
|
||||||
|
|
||||||
|
# update all packages on the system
|
||||||
|
chroot $MR /bin/bash -c \
|
||||||
|
"DEBIAN_FRONTEND=noninteractive RUNLEVEL=1 apt-get -y upgrade"
|
||||||
|
|
||||||
|
#####################################################
|
||||||
|
### Local Modifications
|
||||||
|
#####################################################
|
||||||
|
|
||||||
|
# install ssh key
|
||||||
|
mkdir -p $MR/root/.ssh
|
||||||
|
cp /root/.ssh/authorized_keys $MR/root/.ssh/
|
||||||
|
|
||||||
|
# clean apt cache
|
||||||
|
rm $MR/var/cache/apt/archives/*.deb
|
||||||
|
|
||||||
|
# set dist apt source:
|
||||||
|
RPS="main restricted multiverse universe"
|
||||||
|
MURL="mirror://mirrors.ubuntu.com/mirrors.txt"
|
||||||
|
echo "deb $MURL $R $RPS" > $MR/etc/apt/sources.list
|
||||||
|
for P in updates backports security ; do
|
||||||
|
echo "deb $MURL $R-$P $RPS" >> $MR/etc/apt/sources.list
|
||||||
|
done
|
||||||
|
|
||||||
|
# clear issue
|
||||||
|
echo "clear > /etc/issue" | chroot $MR
|
||||||
|
|
||||||
|
# run firstboot on boot if exists
|
||||||
|
echo "if test -x /firstboot.sh ; then /firstboot.sh ; fi" \
|
||||||
|
>> $MR/etc/rc.local
|
||||||
|
|
||||||
|
# write firstboot file
|
||||||
|
cat > $MR/firstboot.sh <<EOF
|
||||||
|
#!/bin/bash
|
||||||
|
apt-get update
|
||||||
|
apt-get -y install openssh-server
|
||||||
|
rm /firstboot.sh
|
||||||
|
EOF
|
||||||
|
chmod +x $MR/firstboot.sh
|
||||||
|
|
||||||
|
#####################################################
|
||||||
|
### Clean Up and Write Image
|
||||||
|
#####################################################
|
||||||
|
|
||||||
|
echo "******************************************************"
|
||||||
|
echo "*** Almost done. Cleaning up..."
|
||||||
|
echo "******************************************************"
|
||||||
|
|
||||||
|
set +e
|
||||||
|
while grep roottemp /proc/mounts ; do
|
||||||
|
for MP in $(cat /proc/mounts | grep roottemp | awk '{print $2}') ; do
|
||||||
|
umount -l $MP
|
||||||
|
done
|
||||||
|
sleep 1
|
||||||
|
done
|
||||||
|
set -e
|
||||||
|
|
||||||
|
rmdir $MR
|
||||||
|
vgchange -a n $VGN
|
||||||
|
kpartx -dv $LOOPDEV
|
||||||
|
losetup -d $LOOPDEV
|
||||||
|
|
||||||
|
qemu-img convert -f raw -O qcow2 $RI ${R}64.qcow2 && rm $RI
|
||||||
|
sync
|
||||||
|
echo "******************************************************"
|
||||||
|
echo "*** Image generation completed successfully."
|
||||||
|
echo "*** output: ${R}64.qcow2"
|
||||||
|
echo "******************************************************"
|
||||||
|
|
@ -0,0 +1,13 @@
|
||||||
|
#!/bin/bash
|
||||||
|
MR="./mr"
|
||||||
|
L="/dev/loop5"
|
||||||
|
losetup -d /dev/loop6
|
||||||
|
umount $MR/sys
|
||||||
|
umount $MR/proc
|
||||||
|
umount $MR/dev
|
||||||
|
umount $MR/boot
|
||||||
|
umount $MR
|
||||||
|
vgchange -a n vmvg0
|
||||||
|
kpartx -dv $L
|
||||||
|
losetup -d $L
|
||||||
|
rm -rf mr raw.img
|
||||||
Loading…
Reference in New Issue