mirror of
https://github.com/apache/cloudstack.git
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Make the vm smaller
This commit is contained in:
Chiradeep Vittal
parent
6d6b74fdfa
commit
2164d07b61
303
tools/systemvm/debian/buildsystemvm.sh
Executable file
303
tools/systemvm/debian/buildsystemvm.sh
Executable file
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#!/bin/bash
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IMAGENAME=systemvm
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LOCATION=/var/lib/images/systemvm2
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PASSWORD=password
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APT_PROXY=
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HOSTNAME=systemvm
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SIZE=2000
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DEBIAN_MIRROR=ftp.us.debian.org/debian
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MINIMIZE=true
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baseimage() {
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mkdir -p $LOCATION
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dd if=/dev/zero of=$IMAGELOC bs=1M seek=$((SIZE - 1)) count=1
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loopdev=$(losetup -f)
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losetup $loopdev $IMAGELOC
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parted $loopdev -s 'mklabel msdos'
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parted $loopdev -s 'mkpart primary ext3 512B 2097151000B'
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losetup -d $loopdev
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loopdev=$(losetup --show -o 512 -f $IMAGELOC )
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mkfs.ext3 -L ROOT $loopdev
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mkdir -p $MOUNTPOINT
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tune2fs -c 100 -i 0 $loopdev
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losetup -d $loopdev
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mount -o loop,offset=512 $IMAGELOC $MOUNTPOINT
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#debootstrap --variant=minbase --keyring=/usr/share/keyrings/debian-archive-keyring.gpg squeeze $MOUNTPOINT http://${APT_PROXY}${DEBIAN_MIRROR}
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debootstrap --variant=minbase --arch=i386 squeeze $MOUNTPOINT http://${APT_PROXY}${DEBIAN_MIRROR}
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}
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fixapt() {
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if [ "$APT_PROXY" != "" ]; then
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cat >> etc/apt/apt.conf.d/01proxy << EOF
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Acquire::http::Proxy "http://${APT_PROXY}";
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EOF
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fi
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cat > etc/apt/sources.list << EOF
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deb http://ftp.us.debian.org/debian/ squeeze main non-free
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deb-src http://ftp.us.debian.org/debian/ squeeze main non-free
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deb http://security.debian.org/ squeeze/updates main
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deb-src http://security.debian.org/ squeeze/updates main
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deb http://volatile.debian.org/debian-volatile squeeze/volatile main
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deb-src http://volatile.debian.org/debian-volatile squeeze/volatile main
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deb http://ftp.us.debian.org/debian testing main contrib non-free
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EOF
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cat >> etc/apt/apt.conf << EOF
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APT::Default-Release "stable";
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EOF
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cat >> etc/apt/preferences << EOF
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Package: *
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Pin: release o=Debian,a=stable
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Pin-Priority: 900
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Package: *
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Pin: release o=Debian,a=testing
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Pin-Priority: 400
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EOF
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#apt-key exportall | chroot . apt-key add - &&
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chroot . apt-get update &&
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echo "Apt::Install-Recommends 0;" > etc/apt/apt.conf.d/local-recommends
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cat >> usr/sbin/policy-rc.d << EOF
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#!/bin/sh
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exit 101
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EOF
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chmod a+x usr/sbin/policy-rc.d
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cat >> etc/default/locale << EOF
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LANG=en_US.UTF-8
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LC_ALL=en_US.UTF-8
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EOF
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cat >> etc/locale.gen << EOF
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en_US.UTF-8 UTF-8
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EOF
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DEBIAN_FRONTEND=noninteractive
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DEBIAN_PRIORITY=critical
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export DEBIAN_FRONTEND DEBIAN_PRIORITY
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chroot . dpkg-reconfigure debconf --frontend=noninteractive
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chroot . apt-get -q -y install locales
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}
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network() {
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echo "$HOSTNAME" > etc/hostname &&
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cat > etc/hosts << EOF
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127.0.0.1 localhost
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# The following lines are desirable for IPv6 capable hosts
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::1 localhost ip6-localhost ip6-loopback
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fe00::0 ip6-localnet
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ff00::0 ip6-mcastprefix
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ff02::1 ip6-allnodes
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ff02::2 ip6-allrouters
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ff02::3 ip6-allhosts
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EOF
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cat >> etc/network/interfaces << EOF
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auto lo
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iface lo inet loopback
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# The primary network interface
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allow-hotplug eth0
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iface eth0 inet dhcp
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EOF
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}
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install_kernel() {
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DEBIAN_FRONTEND=noninteractive
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DEBIAN_PRIORITY=critical
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export DEBIAN_FRONTEND DEBIAN_PRIORITY
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chroot . apt-get -qq -y --force-yes install grub &&
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cp -av usr/lib/grub/i386-pc boot/grub
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#for some reason apt-get install grub does not install grub/stage1 etc
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loopd=$(losetup -f --show $1)
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grub-install $loopd --root-directory=$MOUNTPOINT
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losetup -d $loopd
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grub << EOF &&
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device (hd0) $1
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root (hd0,0)
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setup (hd0)
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quit
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EOF
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# install a kernel image
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cat > etc/kernel-img.conf << EOF &&
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do_symlinks = yes
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link_in_boot = yes
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do_initrd = yes
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EOF
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chroot . apt-get install -qq -y --force-yes linux-image-686-bigmem
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cat >> etc/kernel-img.conf << EOF
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postinst_hook = /usr/sbin/update-grub
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postrm_hook = /usr/sbin/update-grub
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EOF
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}
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fixgrub() {
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cat > boot/grub/menu.lst << EOF
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default 0
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timeout 2
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color cyan/blue white/blue
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### BEGIN AUTOMAGIC KERNELS LIST
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# kopt=root=LABEL=ROOT ro
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## ## End Default Options ##
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title Debian GNU/Linux, kernel 2.6.32-5-686-bigmem
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root (hd0,0)
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kernel /boot/vmlinuz-2.6.32-5-686-bigmem root=LABEL=ROOT ro console=tty0 xencons=ttyS0,115200 console=hvc0 quiet
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initrd /boot/initrd.img-2.6.32-5-686-bigmem
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### END DEBIAN AUTOMAGIC KERNELS LIST
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EOF
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(cd boot/grub; ln -s menu.lst grub.conf)
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}
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fixinittab() {
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cat >> etc/inittab << EOF
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vc:2345:respawn:/sbin/getty 38400 hvc0
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EOF
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}
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fixfstab() {
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cat > etc/fstab << EOF
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# <file system> <mount point> <type> <options> <dump> <pass>
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proc /proc proc defaults 0 0
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LABEL=ROOT / ext3 errors=remount-ro 0 1
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EOF
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}
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fixacpid() {
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cat >> etc/acpi/events/power << EOF
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event=button/power.*
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action=/usr/local/sbin/power.sh "%e"
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EOF
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cat >> usr/local/sbin/power.sh << EOF
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#!/bin/bash
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/sbin/poweroff
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EOF
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chmod a+x usr/local/sbin/power.sh
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}
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packages() {
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DEBIAN_FRONTEND=noninteractive
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DEBIAN_PRIORITY=critical
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DEBCONF_DB_OVERRIDE=’File{/root/config.dat}’
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export DEBIAN_FRONTEND DEBIAN_PRIORITY DEBCONF_DB_OVERRIDE
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chroot . apt-get --no-install-recommends -q -y --force-yes install rsyslog chkconfig insserv net-tools ifupdown vim-tiny netbase iptables openssh-server grub e2fsprogs dhcp3-client dnsmasq tcpdump socat wget apache2 python2.5 bzip2 sed gawk diff grep gzip less tar telnet xl2tpd traceroute openswan psmisc
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chroot . apt-get --no-install-recommends -q -y --force-yes -t backports install haproxy nfs-common
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echo "***** getting additional modules *********"
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chroot . apt-get --no-install-recommends -q -y --force-yes install iproute acpid iptables-persistent
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echo "***** getting sun jre 6*********"
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DEBIAN_FRONTEND=readline
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export DEBIAN_FRONTEND
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chroot . echo sun-java6-jdk shared/accepted-sun-dlj-v1-1 boolean true | debconf-set-selections
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chroot . apt-get --no-install-recommends -q -y install sun-java6-jre
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}
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password() {
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chroot . echo "root:$PASSWORD" | chroot . chpasswd
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}
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cleanup() {
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rm -f usr/sbin/policy-rc.d
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rm -f etc/apt/apt.conf.d/01proxy
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if [ "$MINIMIZE" == "true" ]
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then
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rm -rf var/cache/apt/*
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rm -rf var/lib/apt/*
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rm -rf usr/share/locale/[a-d]*
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rm -rf usr/share/locale/[f-z]*
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rm -rf usr/share/doc/*
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fi
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}
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mkdir -p $IMAGENAME
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mkdir -p $LOCATION
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MOUNTPOINT=/mnt/$IMAGENAME/
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IMAGELOC=$LOCATION/$IMAGENAME.img
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scriptdir=$(dirname $PWD/$0)
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rm -f $IMAGELOC
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echo "*************INSTALLING BASEIMAGE********************"
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baseimage
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cp $scriptdir/config.dat $MOUNTPOINT/root/
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cd $MOUNTPOINT
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mount -o bind /proc $MOUNTPOINT/proc
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mount -o bind /dev $MOUNTPOINT/dev
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echo "*************CONFIGURING APT********************"
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fixapt
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echo "*************DONE CONFIGURING APT********************"
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echo "*************CONFIGURING NETWORK********************"
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network
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echo "*************DONE CONFIGURING NETWORK********************"
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echo "*************INSTALLING KERNEL********************"
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install_kernel $IMAGELOC
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echo "*************DONE INSTALLING KERNEL********************"
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echo "*************CONFIGURING GRUB********************"
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fixgrub $IMAGELOC
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echo "*************DONE CONFIGURING GRUB********************"
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echo "*************CONFIGURING INITTAB********************"
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fixinittab
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echo "*************DONE CONFIGURING INITTAB********************"
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echo "*************CONFIGURING FSTAB********************"
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fixfstab
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echo "*************DONE CONFIGURING FSTAB********************"
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echo "*************CONFIGURING ACPID********************"
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fixacpid
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echo "*************DONE CONFIGURING ACPID********************"
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#cp etc/inittab etc/inittab.hvm
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#cp $scriptdir/inittab.xen etc/inittab.xen
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#cp $scriptdir/inittab.xen etc/inittab
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#cp $scriptdir/fstab.xen etc/fstab.xen
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#cp $scriptdir/fstab.xen etc/fstab
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#cp $scriptdir/fstab etc/fstab
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echo "*************INSTALLING PACKAGES********************"
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packages
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echo "*************DONE INSTALLING PACKAGES********************"
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echo "*************CONFIGURING PASSWORD********************"
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password
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echo "*************CLEANING UP********************"
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cleanup
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cd $scriptdir
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umount $MOUNTPOINT/proc
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umount $MOUNTPOINT/dev
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umount $MOUNTPOINT
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