openstack/devstack
Code Issues Proposed changes
d4d3a579b0
devstack/tools/build_uec.sh
Attila Fazekas 91b8d13eda Fix "sudo: sorry, you must have a tty to run sudo" 
On many systems the requiretty sudoers option is turned on by default.
With "requiretty" option the sudo ensures the user have real tty access.

Just several "su" variant has an option for skipping the new session creation step.

Only one session can posses a tty, so after a "su -c" the sudo will not
work.

We will use sudo instead of su, when we create the stack account.

This change adds new variable the STACK_USER for
 service username.

Change-Id: I1b3fbd903686884e74a5a22d82c0c0890e1be03c
2013-01-11 09:15:30 +01:00

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#!/usr/bin/env bash
# **build_uec.sh**
# Make sure that we have the proper version of ubuntu (only works on oneiric)
if ! egrep -q "oneiric" /etc/lsb-release; then
echo "This script only works with ubuntu oneiric."
exit 1
fi
# Keep track of the current directory
TOOLS_DIR=$(cd $(dirname "$0") && pwd)
TOP_DIR=$(cd $TOOLS_DIR/..; pwd)
# Import common functions
. $TOP_DIR/functions
cd $TOP_DIR
# Source params
source ./stackrc
# Ubuntu distro to install
DIST_NAME=${DIST_NAME:-oneiric}
# Configure how large the VM should be
GUEST_SIZE=${GUEST_SIZE:-10G}
# exit on error to stop unexpected errors
set -o errexit
set -o xtrace
# Abort if localrc is not set
if [ ! -e $TOP_DIR/localrc ]; then
echo "You must have a localrc with ALL necessary passwords defined before proceeding."
echo "See stack.sh for required passwords."
exit 1
fi
# Install deps if needed
DEPS="kvm libvirt-bin kpartx cloud-utils curl"
apt_get install -y --force-yes $DEPS || true # allow this to fail gracefully for concurrent builds
# Where to store files and instances
WORK_DIR=${WORK_DIR:-/opt/uecstack}
# Where to store images
image_dir=$WORK_DIR/images/$DIST_NAME
mkdir -p $image_dir
# Start over with a clean base image, if desired
if [ $CLEAN_BASE ]; then
rm -f $image_dir/disk
fi
# Get the base image if it does not yet exist
if [ ! -e $image_dir/disk ]; then
$TOOLS_DIR/get_uec_image.sh -r $GUEST_SIZE $DIST_NAME $image_dir/disk $image_dir/kernel
fi
# Copy over dev environment if COPY_ENV is set.
# This will also copy over your current devstack.
if [ $COPY_ENV ]; then
cd $TOOLS_DIR
./copy_dev_environment_to_uec.sh $image_dir/disk
fi
# Option to warm the base image with software requirements.
if [ $WARM_CACHE ]; then
cd $TOOLS_DIR
./warm_apts_for_uec.sh $image_dir/disk
fi
# Name of our instance, used by libvirt
GUEST_NAME=${GUEST_NAME:-devstack}
# Mop up after previous runs
virsh destroy $GUEST_NAME || true
# Where this vm is stored
vm_dir=$WORK_DIR/instances/$GUEST_NAME
# Create vm dir and remove old disk
mkdir -p $vm_dir
rm -f $vm_dir/disk
# Create a copy of the base image
qemu-img create -f qcow2 -b $image_dir/disk $vm_dir/disk
# Back to devstack
cd $TOP_DIR
GUEST_NETWORK=${GUEST_NETWORK:-1}
GUEST_RECREATE_NET=${GUEST_RECREATE_NET:-yes}
GUEST_IP=${GUEST_IP:-192.168.$GUEST_NETWORK.50}
GUEST_CIDR=${GUEST_CIDR:-$GUEST_IP/24}
GUEST_NETMASK=${GUEST_NETMASK:-255.255.255.0}
GUEST_GATEWAY=${GUEST_GATEWAY:-192.168.$GUEST_NETWORK.1}
GUEST_MAC=${GUEST_MAC:-"02:16:3e:07:69:`printf '%02X' $GUEST_NETWORK`"}
GUEST_RAM=${GUEST_RAM:-1524288}
GUEST_CORES=${GUEST_CORES:-1}
# libvirt.xml configuration
NET_XML=$vm_dir/net.xml
NET_NAME=${NET_NAME:-devstack-$GUEST_NETWORK}
cat > $NET_XML <<EOF
<network>
<name>$NET_NAME</name>
<bridge name="stackbr%d" />
<forward/>
<ip address="$GUEST_GATEWAY" netmask="$GUEST_NETMASK">
<dhcp>
<range start='192.168.$GUEST_NETWORK.2' end='192.168.$GUEST_NETWORK.127' />
</dhcp>
</ip>
</network>
EOF
if [[ "$GUEST_RECREATE_NET" == "yes" ]]; then
virsh net-destroy $NET_NAME || true
# destroying the network isn't enough to delete the leases
rm -f /var/lib/libvirt/dnsmasq/$NET_NAME.leases
virsh net-create $vm_dir/net.xml
fi
# libvirt.xml configuration
LIBVIRT_XML=$vm_dir/libvirt.xml
cat > $LIBVIRT_XML <<EOF
<domain type='kvm'>
<name>$GUEST_NAME</name>
<memory>$GUEST_RAM</memory>
<os>
<type>hvm</type>
<kernel>$image_dir/kernel</kernel>
<cmdline>root=/dev/vda ro console=ttyS0 init=/usr/lib/cloud-init/uncloud-init ds=nocloud-net;s=http://192.168.$GUEST_NETWORK.1:4567/ ubuntu-pass=ubuntu</cmdline>
</os>
<features>
<acpi/>
</features>
<clock offset='utc'/>
<vcpu>$GUEST_CORES</vcpu>
<devices>
<disk type='file'>
<driver type='qcow2'/>
<source file='$vm_dir/disk'/>
<target dev='vda' bus='virtio'/>
</disk>
<interface type='network'>
<source network='$NET_NAME'/>
</interface>
<!-- The order is significant here. File must be defined first -->
<serial type="file">
<source path='$vm_dir/console.log'/>
<target port='1'/>
</serial>
<console type='pty' tty='/dev/pts/2'>
<source path='/dev/pts/2'/>
<target port='0'/>
</console>
<serial type='pty'>
<source path='/dev/pts/2'/>
<target port='0'/>
</serial>
<graphics type='vnc' port='-1' autoport='yes' keymap='en-us' listen='0.0.0.0'/>
</devices>
</domain>
EOF
rm -rf $vm_dir/uec
cp -r $TOOLS_DIR/uec $vm_dir/uec
# set metadata
cat > $vm_dir/uec/meta-data<<EOF
hostname: $GUEST_NAME
instance-id: i-hop
instance-type: m1.ignore
local-hostname: $GUEST_NAME.local
EOF
# set user-data
cat > $vm_dir/uec/user-data<<EOF
#!/bin/bash
# hostname needs to resolve for rabbit
sed -i "s/127.0.0.1/127.0.0.1 \`hostname\`/" /etc/hosts
apt-get update
apt-get install git sudo -y
# Disable byobu
sudo apt-get remove -y byobu
EOF
# Setup stack user with our key
if [[ -e ~/.ssh/id_rsa.pub ]]; then
PUB_KEY=`cat ~/.ssh/id_rsa.pub`
cat >> $vm_dir/uec/user-data<<EOF
mkdir -p /opt/stack
if [ ! -d /opt/stack/devstack ]; then
git clone https://github.com/cloudbuilders/devstack.git /opt/stack/devstack
cd /opt/stack/devstack
cat > localrc <<LOCAL_EOF
ROOTSLEEP=0
`cat $TOP_DIR/localrc`
LOCAL_EOF
fi
useradd -U -G sudo -s /bin/bash -d /opt/stack -m $DEFAULT_STACK_USER
echo $DEFAULT_STACK_USER:pass | chpasswd
mkdir -p /opt/stack/.ssh
echo "$PUB_KEY" > /opt/stack/.ssh/authorized_keys
chown -R $DEFAULT_STACK_USER /opt/stack
chmod 700 /opt/stack/.ssh
chmod 600 /opt/stack/.ssh/authorized_keys
grep -q "^#includedir.*/etc/sudoers.d" /etc/sudoers ||
echo "#includedir /etc/sudoers.d" >> /etc/sudoers
( umask 226 && echo "stack ALL=(ALL) NOPASSWD:ALL" \
> /etc/sudoers.d/50_stack_sh )
EOF
fi
# Run stack.sh
cat >> $vm_dir/uec/user-data<<EOF
sudo -u $DEFAULT_STACK_USER bash -l -c "cd /opt/stack/devstack && ./stack.sh"
EOF
# (re)start a metadata service
(
pid=`lsof -iTCP@192.168.$GUEST_NETWORK.1:4567 -n | awk '{print $2}' | tail -1`
[ -z "$pid" ] || kill -9 $pid
)
cd $vm_dir/uec
python meta.py 192.168.$GUEST_NETWORK.1:4567 &
# Create the instance
virsh create $vm_dir/libvirt.xml
# Tail the console log till we are done
WAIT_TILL_LAUNCH=${WAIT_TILL_LAUNCH:-1}
if [ "$WAIT_TILL_LAUNCH" = "1" ]; then
set +o xtrace
# Done creating the container, let's tail the log
echo
echo "============================================================="
echo " -- YAY! --"
echo "============================================================="
echo
echo "We're done launching the vm, about to start tailing the"
echo "stack.sh log. It will take a second or two to start."
echo
echo "Just CTRL-C at any time to stop tailing."
echo
if ! timeout 60 sh -c "while [ ! -s /var/lib/libvirt/dnsmasq/$NET_NAME.leases ]; do sleep 1; done"; then
echo "Your instance failed to acquire an IP address"
exit 1
fi
ip=`cat /var/lib/libvirt/dnsmasq/$NET_NAME.leases | cut -d " " -f3`
echo "#############################################################"
echo " -- This is your instance's IP: --"
echo " $ip"
echo "#############################################################"
sleep 2
while [ ! -e "$vm_dir/console.log" ]; do
sleep 1
done
tail -F $vm_dir/console.log &
TAIL_PID=$!
function kill_tail() {
kill $TAIL_PID
exit 1
}
# Let Ctrl-c kill tail and exit
trap kill_tail SIGINT
echo "Waiting stack.sh to finish..."
while ! egrep -q '^stack.sh (completed|failed)' $vm_dir/console.log ; do
sleep 1
done
set -o xtrace
kill $TAIL_PID
if ! grep -q "^stack.sh completed in" $vm_dir/console.log; then
exit 1
fi
set +o xtrace
echo ""
echo "Finished - Zip-a-dee Doo-dah!"
fi
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