devstack_custom/tools/build_ramdisk.sh
2011-10-17 10:48:21 -05:00

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#!/bin/bash
# build_ramdisk.sh - Build RAM disk images
if [ ! "$#" -eq "1" ]; then
echo "$0 builds a gziped natty openstack install"
echo "usage: $0 dest"
exit 1
fi
PROGDIR=`dirname $0`
CHROOTCACHE=${CHROOTCACHE:-/var/cache/devstack}
# Source params
source ./stackrc
# Store cwd
CWD=`pwd`
DEST=${DEST:-/opt/stack}
# Param string to pass to stack.sh. Like "EC2_DMZ_HOST=192.168.1.1 MYSQL_USER=nova"
STACKSH_PARAMS=${STACKSH_PARAMS:-}
# Option to use the version of devstack on which we are currently working
USE_CURRENT_DEVSTACK=${USE_CURRENT_DEVSTACK:-1}
# clean install of natty
if [ ! -d $CHROOTCACHE/natty-base ]; then
$PROGDIR/make_image.sh -C natty $CHROOTCACHE/natty-base
# copy kernel modules...
# NOTE(ja): is there a better way to do this?
cp -pr /lib/modules/`uname -r` $CHROOTCACHE/natty-base/lib/modules
# a simple password - pass
echo root:pass | chroot $CHROOTCACHE/natty-base chpasswd
fi
# prime natty with as many apt/pips as we can
if [ ! -d $CHROOTCACHE/natty-dev ]; then
rsync -azH $CHROOTCACHE/natty-base/ $CHROOTCACHE/natty-dev/
chroot $CHROOTCACHE/natty-dev apt-get install -y `cat files/apts/* | cut -d\# -f1 | egrep -v "(rabbitmq|libvirt-bin|mysql-server)"`
chroot $CHROOTCACHE/natty-dev pip install `cat files/pips/*`
# Create a stack user that is a member of the libvirtd group so that stack
# is able to interact with libvirt.
chroot $CHROOTCACHE/natty-dev groupadd libvirtd
chroot $CHROOTCACHE/natty-dev useradd stack -s /bin/bash -d $DEST -G libvirtd
mkdir -p $CHROOTCACHE/natty-dev/$DEST
chroot $CHROOTCACHE/natty-dev chown stack $DEST
# a simple password - pass
echo stack:pass | chroot $CHROOTCACHE/natty-dev chpasswd
# and has sudo ability (in the future this should be limited to only what
# stack requires)
echo "stack ALL=(ALL) NOPASSWD: ALL" >> $CHROOTCACHE/natty-dev/etc/sudoers
fi
# clone git repositories onto the system
# ======================================
if [ ! -d $CHROOTCACHE/natty-stack ]; then
rsync -azH $CHROOTCACHE/natty-dev/ $CHROOTCACHE/natty-stack/
fi
# git clone only if directory doesn't exist already. Since ``DEST`` might not
# be owned by the installation user, we create the directory and change the
# ownership to the proper user.
function git_clone {
# clone new copy or fetch latest changes
CHECKOUT=$CHROOTCACHE/natty-stack$2
if [ ! -d $CHECKOUT ]; then
mkdir -p $CHECKOUT
git clone $1 $CHECKOUT
else
pushd $CHECKOUT
git fetch
popd
fi
# FIXME(ja): checkout specified version (should works for branches and tags)
pushd $CHECKOUT
# checkout the proper branch/tag
git checkout $3
# force our local version to be the same as the remote version
git reset --hard origin/$3
popd
# give ownership to the stack user
chroot $CHROOTCACHE/natty-stack/ chown -R stack $2
}
git_clone $NOVA_REPO $DEST/nova $NOVA_BRANCH
git_clone $GLANCE_REPO $DEST/glance $GLANCE_BRANCH
git_clone $KEYSTONE_REPO $DEST/keystone $KEYSTONE_BRANCH
git_clone $NOVNC_REPO $DEST/novnc $NOVNC_BRANCH
git_clone $DASH_REPO $DEST/dash $DASH_BRANCH
git_clone $NOVACLIENT_REPO $DEST/python-novaclient $NOVACLIENT_BRANCH
git_clone $OPENSTACKX_REPO $DEST/openstackx $OPENSTACKX_BRANCH
# Use this version of devstack?
if [ "$USE_CURRENT_DEVSTACK" = "1" ]; then
rm -rf $CHROOTCACHE/natty-stack/$DEST/devstack
cp -pr $CWD $CHROOTCACHE/natty-stack/$DEST/devstack
fi
# Configure host network for DHCP
mkdir -p $CHROOTCACHE/natty-stack/etc/network
cat > $CHROOTCACHE/natty-stack/etc/network/interfaces <<EOF
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
EOF
# Set hostname
echo "ramstack" >$CHROOTCACHE/natty-stack/etc/hostname
echo "127.0.0.1 localhost ramstack" >$CHROOTCACHE/natty-stack/etc/hosts
# Configure the runner
RUN_SH=$CHROOTCACHE/natty-stack/$DEST/run.sh
cat > $RUN_SH <<EOF
#!/usr/bin/env bash
# Get IP range
set \`ip addr show dev eth0 | grep inet\`
PREFIX=\`echo \$2 | cut -d. -f1,2,3\`
export FLOATING_RANGE="\$PREFIX.224/27"
# Kill any existing screens
killall screen
# Run stack.sh
cd $DEST/devstack && \$STACKSH_PARAMS ./stack.sh > $DEST/run.sh.log
echo >> $DEST/run.sh.log
echo >> $DEST/run.sh.log
echo "All done! Time to start clicking." >> $DEST/run.sh.log
EOF
# Make the run.sh executable
chmod 755 $RUN_SH
chroot $CHROOTCACHE/natty-stack chown stack $DEST/run.sh
# build a new image
BASE=$CHROOTCACHE/build.$$
IMG=$BASE.img
MNT=$BASE/
# (quickly) create a 2GB blank filesystem
dd bs=1 count=1 seek=$((2*1024*1024*1024)) if=/dev/zero of=$IMG
# force it to be initialized as ext2
mkfs.ext2 -F $IMG
# mount blank image loopback and load it
mkdir -p $MNT
mount -o loop $IMG $MNT
rsync -azH $CHROOTCACHE/natty-stack/ $MNT
# umount and cleanup
umount $MNT
rmdir $MNT
# gzip into final location
gzip -1 $IMG -c > $1