openstack/devstack
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devstack/tools/xen/install_os_domU.sh

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#!/bin/bash
# This script must be run on a XenServer or XCP machine
#
# It creates a DomU VM that runs OpenStack services
#
# For more details see: README.md
set -o errexit
set -o nounset
set -o xtrace
export LC_ALL=C
# Abort if localrc is not set
if [ ! -e ../../localrc ]; then
echo "You must have a localrc with ALL necessary passwords defined before proceeding."
echo "See the xen README for required passwords."
exit 1
fi
# This directory
THIS_DIR=$(cd $(dirname "$0") && pwd)
# Source lower level functions
. $THIS_DIR/../../functions
# Include onexit commands
. $THIS_DIR/scripts/on_exit.sh
# xapi functions
. $THIS_DIR/functions
# Determine what system we are running on.
# Might not be XenServer if we're using xenserver-core
GetDistro
#
# Get Settings
#
# Source params - override xenrc params in your localrc to suit your taste
source $THIS_DIR/xenrc
xe_min()
{
local cmd="$1"
shift
xe "$cmd" --minimal "$@"
}
#
# Prepare Dom0
# including installing XenAPI plugins
#
cd $THIS_DIR
# Die if multiple hosts listed
if have_multiple_hosts; then
cat >&2 << EOF
ERROR: multiple hosts found. This might mean that the XenServer is a member
of a pool - Exiting.
EOF
exit 1
fi
# Install plugins
## Nova plugins
NOVA_ZIPBALL_URL=${NOVA_ZIPBALL_URL:-$(zip_snapshot_location $NOVA_REPO $NOVA_BRANCH)}
EXTRACTED_NOVA=$(extract_remote_zipball "$NOVA_ZIPBALL_URL")
install_xapi_plugins_from "$EXTRACTED_NOVA"
LOGROT_SCRIPT=$(find "$EXTRACTED_NOVA" -name "rotate_xen_guest_logs.sh" -print)
if [ -n "$LOGROT_SCRIPT" ]; then
mkdir -p "/var/log/xen/guest"
cp "$LOGROT_SCRIPT" /root/consolelogrotate
chmod +x /root/consolelogrotate
echo "* * * * * /root/consolelogrotate" | crontab
fi
rm -rf "$EXTRACTED_NOVA"
## Install the netwrap xapi plugin to support agent control of dom0 networking
if [[ "$ENABLED_SERVICES" =~ "q-agt" && "$Q_PLUGIN" = "openvswitch" ]]; then
NEUTRON_ZIPBALL_URL=${NEUTRON_ZIPBALL_URL:-$(zip_snapshot_location $NEUTRON_REPO $NEUTRON_BRANCH)}
EXTRACTED_NEUTRON=$(extract_remote_zipball "$NEUTRON_ZIPBALL_URL")
install_xapi_plugins_from "$EXTRACTED_NEUTRON"
rm -rf "$EXTRACTED_NEUTRON"
fi
create_directory_for_kernels
create_directory_for_images
#
# Configure Networking
#
MGT_NETWORK=`xe pif-list management=true params=network-uuid minimal=true`
MGT_BRIDGE_OR_NET_NAME=`xe network-list uuid=$MGT_NETWORK params=bridge minimal=true`
setup_network "$VM_BRIDGE_OR_NET_NAME"
setup_network "$MGT_BRIDGE_OR_NET_NAME"
setup_network "$PUB_BRIDGE_OR_NET_NAME"
# With neutron, one more network is required, which is internal to the
# hypervisor, and used by the VMs
if is_service_enabled neutron; then
setup_network "$XEN_INT_BRIDGE_OR_NET_NAME"
fi
if parameter_is_specified "FLAT_NETWORK_BRIDGE"; then
if [ "$(bridge_for "$VM_BRIDGE_OR_NET_NAME")" != "$(bridge_for "$FLAT_NETWORK_BRIDGE")" ]; then
cat >&2 << EOF
ERROR: FLAT_NETWORK_BRIDGE is specified in localrc file, and either no network
found on XenServer by searching for networks by that value as name-label or
bridge name or the network found does not match the network specified by
VM_BRIDGE_OR_NET_NAME. Please check your localrc file.
EOF
exit 1
fi
fi
if ! xenapi_is_listening_on "$MGT_BRIDGE_OR_NET_NAME"; then
cat >&2 << EOF
ERROR: XenAPI does not have an assigned IP address on the management network.
please review your XenServer network configuration / localrc file.
EOF
exit 1
fi
HOST_IP=$(xenapi_ip_on "$MGT_BRIDGE_OR_NET_NAME")
# Set up ip forwarding, but skip on xcp-xapi
if [ -a /etc/sysconfig/network ]; then
if ! grep -q "FORWARD_IPV4=YES" /etc/sysconfig/network; then
# FIXME: This doesn't work on reboot!
echo "FORWARD_IPV4=YES" >> /etc/sysconfig/network
fi
fi
# Also, enable ip forwarding in rc.local, since the above trick isn't working
if ! grep -q "echo 1 >/proc/sys/net/ipv4/ip_forward" /etc/rc.local; then
echo "echo 1 >/proc/sys/net/ipv4/ip_forward" >> /etc/rc.local
fi
# Enable ip forwarding at runtime as well
echo 1 > /proc/sys/net/ipv4/ip_forward
#
# Shutdown previous runs
#
DO_SHUTDOWN=${DO_SHUTDOWN:-1}
CLEAN_TEMPLATES=${CLEAN_TEMPLATES:-false}
if [ "$DO_SHUTDOWN" = "1" ]; then
# Shutdown all domU's that created previously
clean_templates_arg=""
if $CLEAN_TEMPLATES; then
clean_templates_arg="--remove-templates"
fi
./scripts/uninstall-os-vpx.sh $clean_templates_arg
# Destroy any instances that were launched
for uuid in `xe vm-list | grep -1 instance | grep uuid | sed "s/.*\: //g"`; do
echo "Shutting down nova instance $uuid"
xe vm-uninstall uuid=$uuid force=true
done
# Destroy orphaned vdis
for uuid in `xe vdi-list | grep -1 Glance | grep uuid | sed "s/.*\: //g"`; do
xe vdi-destroy uuid=$uuid
done
fi
#
# Create Ubuntu VM template
# and/or create VM from template
#
GUEST_NAME=${GUEST_NAME:-"DevStackOSDomU"}
TNAME="jeos_template_for_devstack"
SNAME_TEMPLATE="jeos_snapshot_for_devstack"
SNAME_FIRST_BOOT="before_first_boot"
function wait_for_VM_to_halt() {
set +x
echo "Waiting for the VM to halt. Progress in-VM can be checked with vncviewer:"
mgmt_ip=$(echo $XENAPI_CONNECTION_URL | tr -d -c '1234567890.')
domid=$(xe vm-list name-label="$GUEST_NAME" params=dom-id minimal=true)
port=$(xenstore-read /local/domain/$domid/console/vnc-port)
echo "vncviewer -via root@$mgmt_ip localhost:${port:2}"
while true
do
state=$(xe_min vm-list name-label="$GUEST_NAME" power-state=halted)
if [ -n "$state" ]
then
break
else
echo -n "."
sleep 20
fi
done
set -x
}
templateuuid=$(xe template-list name-label="$TNAME")
if [ -z "$templateuuid" ]; then
#
# Install Ubuntu over network
#
UBUNTU_INST_BRIDGE_OR_NET_NAME=${UBUNTU_INST_BRIDGE_OR_NET_NAME:-"$MGT_BRIDGE_OR_NET_NAME"}
# always update the preseed file, incase we have a newer one
PRESEED_URL=${PRESEED_URL:-""}
if [ -z "$PRESEED_URL" ]; then
PRESEED_URL="${HOST_IP}/devstackubuntupreseed.cfg"
HTTP_SERVER_LOCATION="/opt/xensource/www"
if [ ! -e $HTTP_SERVER_LOCATION ]; then
HTTP_SERVER_LOCATION="/var/www/html"
mkdir -p $HTTP_SERVER_LOCATION
fi
cp -f $THIS_DIR/devstackubuntupreseed.cfg $HTTP_SERVER_LOCATION
sed \
-e "s,\(d-i mirror/http/hostname string\).*,\1 $UBUNTU_INST_HTTP_HOSTNAME,g" \
-e "s,\(d-i mirror/http/directory string\).*,\1 $UBUNTU_INST_HTTP_DIRECTORY,g" \
-e "s,\(d-i mirror/http/proxy string\).*,\1 $UBUNTU_INST_HTTP_PROXY,g" \
-i "${HTTP_SERVER_LOCATION}/devstackubuntupreseed.cfg"
fi
# Update the template
$THIS_DIR/scripts/install_ubuntu_template.sh $PRESEED_URL
# create a new VM from the given template with eth0 attached to the given
# network
$THIS_DIR/scripts/install-os-vpx.sh \
-t "$UBUNTU_INST_TEMPLATE_NAME" \
-n "$UBUNTU_INST_BRIDGE_OR_NET_NAME" \
-l "$GUEST_NAME"
set_vm_memory "$GUEST_NAME" "$OSDOMU_MEM_MB"
xe vm-start vm="$GUEST_NAME"
# wait for install to finish
wait_for_VM_to_halt
# set VM to restart after a reboot
vm_uuid=$(xe_min vm-list name-label="$GUEST_NAME")
xe vm-param-set actions-after-reboot=Restart uuid="$vm_uuid"
# Make template from VM
snuuid=$(xe vm-snapshot vm="$GUEST_NAME" new-name-label="$SNAME_TEMPLATE")
xe snapshot-clone uuid=$snuuid new-name-label="$TNAME"
else
#
# Template already installed, create VM from template
#
vm_uuid=$(xe vm-install template="$TNAME" new-name-label="$GUEST_NAME")
fi
#
# Prepare VM for DevStack
#
# Install XenServer tools, and other such things
$THIS_DIR/prepare_guest_template.sh "$GUEST_NAME"
# Set virtual machine parameters
set_vm_memory "$GUEST_NAME" "$OSDOMU_MEM_MB"
# Max out VCPU count for better performance
max_vcpus "$GUEST_NAME"
# Wipe out all network cards
destroy_all_vifs_of "$GUEST_NAME"
# Add only one interface to prepare the guest template
add_interface "$GUEST_NAME" "$MGT_BRIDGE_OR_NET_NAME" "0"
# start the VM to run the prepare steps
xe vm-start vm="$GUEST_NAME"
# Wait for prep script to finish and shutdown system
wait_for_VM_to_halt
## Setup network cards
# Wipe out all
destroy_all_vifs_of "$GUEST_NAME"
# Tenant network
add_interface "$GUEST_NAME" "$VM_BRIDGE_OR_NET_NAME" "$VM_DEV_NR"
# Management network
add_interface "$GUEST_NAME" "$MGT_BRIDGE_OR_NET_NAME" "$MGT_DEV_NR"
# Public network
add_interface "$GUEST_NAME" "$PUB_BRIDGE_OR_NET_NAME" "$PUB_DEV_NR"
#
# Inject DevStack inside VM disk
#
$THIS_DIR/build_xva.sh "$GUEST_NAME"
# Attach a network interface for the integration network (so that the bridge
# is created by XenServer). This is required for Neutron. Also pass that as a
# kernel parameter for DomU
if is_service_enabled neutron; then
attach_network "$XEN_INT_BRIDGE_OR_NET_NAME"
XEN_INTEGRATION_BRIDGE=$(bridge_for "$XEN_INT_BRIDGE_OR_NET_NAME")
append_kernel_cmdline \
"$GUEST_NAME" \
"xen_integration_bridge=${XEN_INTEGRATION_BRIDGE}"
fi
FLAT_NETWORK_BRIDGE="${FLAT_NETWORK_BRIDGE:-$(bridge_for "$VM_BRIDGE_OR_NET_NAME")}"
append_kernel_cmdline "$GUEST_NAME" "flat_network_bridge=${FLAT_NETWORK_BRIDGE}"
# Add a separate xvdb, if it was requested
if [[ "0" != "$XEN_XVDB_SIZE_GB" ]]; then
vm=$(xe vm-list name-label="$GUEST_NAME" --minimal)
# Add a new disk
localsr=$(get_local_sr)
extra_vdi=$(xe vdi-create \
name-label=xvdb-added-by-devstack \
virtual-size="${XEN_XVDB_SIZE_GB}GiB" \
sr-uuid=$localsr type=user)
xe vbd-create vm-uuid=$vm vdi-uuid=$extra_vdi device=1
fi
# create a snapshot before the first boot
# to allow a quick re-run with the same settings
xe vm-snapshot vm="$GUEST_NAME" new-name-label="$SNAME_FIRST_BOOT"
#
# Run DevStack VM
#
xe vm-start vm="$GUEST_NAME"
function ssh_no_check() {
ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no "$@"
}
# Get hold of the Management IP of OpenStack VM
OS_VM_MANAGEMENT_ADDRESS=$MGT_IP
if [ $OS_VM_MANAGEMENT_ADDRESS == "dhcp" ]; then
OS_VM_MANAGEMENT_ADDRESS=$(find_ip_by_name $GUEST_NAME $MGT_DEV_NR)
fi
# Get hold of the Service IP of OpenStack VM
if [ $HOST_IP_IFACE == "eth${MGT_DEV_NR}" ]; then
OS_VM_SERVICES_ADDRESS=$MGT_IP
if [ $MGT_IP == "dhcp" ]; then
OS_VM_SERVICES_ADDRESS=$(find_ip_by_name $GUEST_NAME $MGT_DEV_NR)
fi
else
OS_VM_SERVICES_ADDRESS=$PUB_IP
if [ $PUB_IP == "dhcp" ]; then
OS_VM_SERVICES_ADDRESS=$(find_ip_by_name $GUEST_NAME $PUB_DEV_NR)
fi
fi
# If we have copied our ssh credentials, use ssh to monitor while the installation runs
WAIT_TILL_LAUNCH=${WAIT_TILL_LAUNCH:-1}
COPYENV=${COPYENV:-1}
if [ "$WAIT_TILL_LAUNCH" = "1" ] && [ -e ~/.ssh/id_rsa.pub ] && [ "$COPYENV" = "1" ]; then
set +x
echo "VM Launched - Waiting for devstack to start"
while ! ssh_no_check -q stack@$OS_VM_MANAGEMENT_ADDRESS "service devstack status | grep -q running"; do
sleep 10
done
echo -n "devstack is running"
while ssh_no_check -q stack@$OS_VM_MANAGEMENT_ADDRESS "service devstack status | grep -q running"; do
sleep 10
echo -n "."
done
echo "done!"
set -x
# Fail if devstack did not succeed
ssh_no_check -q stack@$OS_VM_MANAGEMENT_ADDRESS 'test -e /var/run/devstack.succeeded'
set +x
echo "################################################################################"
echo ""
echo "All Finished!"
echo "You can visit the OpenStack Dashboard"
echo "at http://$OS_VM_SERVICES_ADDRESS, and contact other services at the usual ports."
else
set +x
echo "################################################################################"
echo ""
echo "All Finished!"
echo "Now, you can monitor the progress of the stack.sh installation by "
echo "looking at the console of your domU / checking the log files."
echo ""
echo "ssh into your domU now: 'ssh stack@$OS_VM_MANAGEMENT_ADDRESS' using your password"
echo "and then do: 'sudo service devstack status' to check if devstack is still running."
echo "Check that /var/run/devstack.succeeded exists"
echo ""
echo "When devstack completes, you can visit the OpenStack Dashboard"
echo "at http://$OS_VM_SERVICES_ADDRESS, and contact other services at the usual ports."
fi
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