daadf744ed
I have ensured: - template gets re-used on second run - template includes XenServer tools, and custom user accounts - take snapshot before first boot, for easy re-run - make host_ip_iface work with either eth2 or eth3 - make ssh into domU checks looser - above is all ground work for improved jenkins tests - added some more comments to make it scripts clearer Change-Id: I5c45370bf8a1393d669480e196b13f592d29154f
439 lines
12 KiB
Bash
Executable File
439 lines
12 KiB
Bash
Executable File
#!/bin/bash
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# This script is a level script
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# It must be run on a XenServer or XCP machine
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#
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# It creates a DomU VM that runs OpenStack services
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#
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# For more details see: README.md
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# Exit on errors
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set -o errexit
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# Echo commands
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set -o xtrace
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# Abort if localrc is not set
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if [ ! -e ../../localrc ]; then
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echo "You must have a localrc with ALL necessary passwords defined before proceeding."
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echo "See the xen README for required passwords."
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exit 1
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fi
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# This directory
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TOP_DIR=$(cd $(dirname "$0") && pwd)
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# Source lower level functions
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. $TOP_DIR/../../functions
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# Include onexit commands
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. $TOP_DIR/scripts/on_exit.sh
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#
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# Get Settings
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#
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# Source params - override xenrc params in your localrc to suit your taste
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source xenrc
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xe_min()
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{
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local cmd="$1"
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shift
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xe "$cmd" --minimal "$@"
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}
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#
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# Prepare Dom0
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# including installing XenAPI plugins
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#
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cd $TOP_DIR
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if [ -f ./master ]
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then
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rm -rf ./master
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rm -rf ./nova
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fi
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# get nova
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wget https://github.com/openstack/nova/zipball/master --no-check-certificate
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unzip -o master -d ./nova
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# install xapi plugins
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XAPI_PLUGIN_DIR=/etc/xapi.d/plugins/
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if [ ! -d $XAPI_PLUGIN_DIR ]; then
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# the following is needed when using xcp-xapi
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XAPI_PLUGIN_DIR=/usr/lib/xcp/plugins/
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fi
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cp -pr ./nova/*/plugins/xenserver/xenapi/etc/xapi.d/plugins/* $XAPI_PLUGIN_DIR
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chmod a+x ${XAPI_PLUGIN_DIR}*
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mkdir -p /boot/guest
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#
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# Configure Networking
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#
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# Helper to create networks
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# Uses echo trickery to return network uuid
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function create_network() {
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br=$1
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dev=$2
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vlan=$3
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netname=$4
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if [ -z $br ]
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then
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pif=$(xe_min pif-list device=$dev VLAN=$vlan)
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if [ -z $pif ]
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then
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net=$(xe network-create name-label=$netname)
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else
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net=$(xe_min network-list PIF-uuids=$pif)
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fi
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echo $net
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return 0
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fi
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if [ ! $(xe_min network-list params=bridge | grep -w --only-matching $br) ]
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then
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echo "Specified bridge $br does not exist"
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echo "If you wish to use defaults, please keep the bridge name empty"
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exit 1
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else
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net=$(xe_min network-list bridge=$br)
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echo $net
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fi
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}
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function errorcheck() {
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rc=$?
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if [ $rc -ne 0 ]
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then
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exit $rc
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fi
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}
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# Create host, vm, mgmt, pub networks on XenServer
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VM_NET=$(create_network "$VM_BR" "$VM_DEV" "$VM_VLAN" "vmbr")
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errorcheck
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MGT_NET=$(create_network "$MGT_BR" "$MGT_DEV" "$MGT_VLAN" "mgtbr")
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errorcheck
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PUB_NET=$(create_network "$PUB_BR" "$PUB_DEV" "$PUB_VLAN" "pubbr")
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errorcheck
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# Helper to create vlans
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function create_vlan() {
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dev=$1
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vlan=$2
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net=$3
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# VLAN -1 refers to no VLAN (physical network)
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if [ $vlan -eq -1 ]
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then
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return
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fi
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if [ -z $(xe_min vlan-list tag=$vlan) ]
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then
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pif=$(xe_min pif-list network-uuid=$net)
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# We created a brand new network this time
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if [ -z $pif ]
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then
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pif=$(xe_min pif-list device=$dev VLAN=-1)
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xe vlan-create pif-uuid=$pif vlan=$vlan network-uuid=$net
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else
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echo "VLAN does not exist but PIF attached to this network"
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echo "How did we reach here?"
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exit 1
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fi
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fi
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}
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# Create vlans for vm and management
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create_vlan $PUB_DEV $PUB_VLAN $PUB_NET
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create_vlan $VM_DEV $VM_VLAN $VM_NET
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create_vlan $MGT_DEV $MGT_VLAN $MGT_NET
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# Get final bridge names
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if [ -z $VM_BR ]; then
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VM_BR=$(xe_min network-list uuid=$VM_NET params=bridge)
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fi
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if [ -z $MGT_BR ]; then
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MGT_BR=$(xe_min network-list uuid=$MGT_NET params=bridge)
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fi
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if [ -z $PUB_BR ]; then
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PUB_BR=$(xe_min network-list uuid=$PUB_NET params=bridge)
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fi
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# dom0 ip, XenAPI is assumed to be listening
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HOST_IP=${HOST_IP:-`ifconfig xenbr0 | grep "inet addr" | cut -d ":" -f2 | sed "s/ .*//"`}
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# Set up ip forwarding, but skip on xcp-xapi
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if [ -a /etc/sysconfig/network]; then
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if ! grep -q "FORWARD_IPV4=YES" /etc/sysconfig/network; then
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# FIXME: This doesn't work on reboot!
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echo "FORWARD_IPV4=YES" >> /etc/sysconfig/network
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fi
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fi
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# Also, enable ip forwarding in rc.local, since the above trick isn't working
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if ! grep -q "echo 1 >/proc/sys/net/ipv4/ip_forward" /etc/rc.local; then
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echo "echo 1 >/proc/sys/net/ipv4/ip_forward" >> /etc/rc.local
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fi
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# Enable ip forwarding at runtime as well
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echo 1 > /proc/sys/net/ipv4/ip_forward
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#
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# Shutdown previous runs
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#
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DO_SHUTDOWN=${DO_SHUTDOWN:-1}
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CLEAN_TEMPLATES=${CLEAN_TEMPLATES:-false}
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if [ "$DO_SHUTDOWN" = "1" ]; then
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# Shutdown all domU's that created previously
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clean_templates_arg=""
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if $CLEAN_TEMPLATES; then
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clean_templates_arg="--remove-templates"
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fi
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./scripts/uninstall-os-vpx.sh $clean_templates_arg
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# Destroy any instances that were launched
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for uuid in `xe vm-list | grep -1 instance | grep uuid | sed "s/.*\: //g"`; do
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echo "Shutting down nova instance $uuid"
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xe vm-unpause uuid=$uuid || true
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xe vm-shutdown uuid=$uuid || true
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xe vm-destroy uuid=$uuid
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done
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# Destroy orphaned vdis
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for uuid in `xe vdi-list | grep -1 Glance | grep uuid | sed "s/.*\: //g"`; do
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xe vdi-destroy uuid=$uuid
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done
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fi
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#
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# Create Ubuntu VM template
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# and/or create VM from template
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#
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GUEST_NAME=${GUEST_NAME:-"DevStackOSDomU"}
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TNAME="devstack_template_folsom_11.10"
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SNAME_PREPARED="template_prepared"
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SNAME_FIRST_BOOT="before_first_boot"
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function wait_for_VM_to_halt() {
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while true
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do
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state=$(xe_min vm-list name-label="$GUEST_NAME" power-state=halted)
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if [ -n "$state" ]
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then
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break
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else
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echo "Waiting for "$GUEST_NAME" to finish installation..."
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sleep 20
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fi
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done
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}
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templateuuid=$(xe template-list name-label="$TNAME")
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if [ -z "$templateuuid" ]; then
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#
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# Install Ubuntu over network
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#
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# try to find ubuntu template
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ubuntu_template_name="Ubuntu 11.10 for DevStack (64-bit)"
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ubuntu_template=$(xe_min template-list name-label="$ubuntu_template_name")
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# remove template, if we are in CLEAN_TEMPLATE mode
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if [ -n "$ubuntu_template" ]; then
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if $CLEAN_TEMPLATES; then
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xe template-param-clear param-name=other-config uuid=$ubuntu_template
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xe template-uninstall template-uuid=$ubuntu_template force=true
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ubuntu_template=""
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fi
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fi
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# always update the preseed file, incase we have a newer one
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PRESEED_URL=${PRESEED_URL:-""}
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if [ -z "$PRESEED_URL" ]; then
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PRESEED_URL="${HOST_IP}/devstackubuntupreseed.cfg"
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HTTP_SERVER_LOCATION="/opt/xensource/www"
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if [ ! -e $HTTP_SERVER_LOCATION ]; then
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HTTP_SERVER_LOCATION="/var/www/html"
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mkdir -p $HTTP_SERVER_LOCATION
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fi
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cp -f $TOP_DIR/devstackubuntupreseed.cfg $HTTP_SERVER_LOCATION
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MIRROR=${MIRROR:-""}
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if [ -n "$MIRROR" ]; then
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sed -e "s,d-i mirror/http/hostname string .*,d-i mirror/http/hostname string $MIRROR," \
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-i "${HTTP_SERVER_LOCATION}/devstackubuntupreseed.cfg"
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fi
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fi
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if [ -z "$ubuntu_template" ]; then
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$TOP_DIR/scripts/xenoneirictemplate.sh $PRESEED_URL
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fi
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# create a new VM with the given template
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# creating the correct VIFs and metadata
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$TOP_DIR/scripts/install-os-vpx.sh -t "$ubuntu_template_name" -v $VM_BR -m $MGT_BR -p $PUB_BR -l $GUEST_NAME -r $OSDOMU_MEM_MB -k "flat_network_bridge=${VM_BR}"
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# wait for install to finish
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wait_for_VM_to_halt
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# set VM to restart after a reboot
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vm_uuid=$(xe_min vm-list name-label="$GUEST_NAME")
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xe vm-param-set actions-after-reboot=Restart uuid="$vm_uuid"
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#
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# Prepare VM for DevStack
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#
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# Install XenServer tools, and other such things
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$TOP_DIR/prepare_guest_template.sh "$GUEST_NAME"
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# start the VM to run the prepare steps
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xe vm-start vm="$GUEST_NAME"
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# Wait for prep script to finish and shutdown system
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wait_for_VM_to_halt
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# Make template from VM
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snuuid=$(xe vm-snapshot vm="$GUEST_NAME" new-name-label="$SNAME_PREPARED")
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xe snapshot-clone uuid=$snuuid new-name-label="$TNAME"
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else
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#
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# Template already installed, create VM from template
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#
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vm_uuid=$(xe vm-install template="$TNAME" new-name-label="$GUEST_NAME")
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fi
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#
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# Inject DevStack inside VM disk
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#
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$TOP_DIR/build_xva.sh "$GUEST_NAME"
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# create a snapshot before the first boot
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# to allow a quick re-run with the same settings
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xe vm-snapshot vm="$GUEST_NAME" new-name-label="$SNAME_FIRST_BOOT"
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#
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# Run DevStack VM
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#
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xe vm-start vm="$GUEST_NAME"
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#
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# Find IP and optionally wait for stack.sh to complete
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#
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function find_ip_by_name() {
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local guest_name="$1"
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local interface="$2"
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local period=10
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max_tries=10
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i=0
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while true
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do
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if [ $i -ge $max_tries ]; then
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echo "Timed out waiting for devstack ip address"
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exit 11
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fi
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devstackip=$(xe vm-list --minimal \
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name-label=$guest_name \
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params=networks | sed -ne "s,^.*${interface}/ip: \([0-9.]*\).*\$,\1,p")
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if [ -z "$devstackip" ]
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then
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sleep $period
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((i++))
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else
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echo $devstackip
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break
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fi
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done
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}
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function ssh_no_check() {
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ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no "$@"
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}
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# Note the XenServer needs to be on the chosen
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# network, so XenServer can access Glance API
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if [ $HOST_IP_IFACE == "eth2" ]; then
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DOMU_IP=$MGT_IP
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if [ $MGT_IP == "dhcp" ]; then
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DOMU_IP=$(find_ip_by_name $GUEST_NAME 2)
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fi
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else
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DOMU_IP=$PUB_IP
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if [ $PUB_IP == "dhcp" ]; then
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DOMU_IP=$(find_ip_by_name $GUEST_NAME 3)
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fi
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fi
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# If we have copied our ssh credentials, use ssh to monitor while the installation runs
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WAIT_TILL_LAUNCH=${WAIT_TILL_LAUNCH:-1}
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COPYENV=${COPYENV:-1}
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if [ "$WAIT_TILL_LAUNCH" = "1" ] && [ -e ~/.ssh/id_rsa.pub ] && [ "$COPYENV" = "1" ]; then
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echo "We're done launching the vm, about to start tailing the"
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echo "stack.sh log. It will take a second or two to start."
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echo
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echo "Just CTRL-C at any time to stop tailing."
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# wait for log to appear
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while ! ssh_no_check -q stack@$DOMU_IP "[ -e run.sh.log ]"; do
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sleep 10
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done
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# output the run.sh.log
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ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no stack@$DOMU_IP 'tail -f run.sh.log' &
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TAIL_PID=$!
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function kill_tail() {
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kill -9 $TAIL_PID
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exit 1
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}
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# Let Ctrl-c kill tail and exit
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trap kill_tail SIGINT
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# ensure we kill off the tail if we exit the script early
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# for other reasons
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add_on_exit "kill -9 $TAIL_PID || true"
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# wait silently until stack.sh has finished
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set +o xtrace
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while ! ssh_no_check -q stack@$DOMU_IP "tail run.sh.log | grep -q 'stack.sh completed in'"; do
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sleep 10
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done
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set -o xtrace
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# kill the tail process now stack.sh has finished
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kill -9 $TAIL_PID
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# check for a failure
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if ssh_no_check -q stack@$DOMU_IP "grep -q 'stack.sh failed' run.sh.log"; then
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exit 1
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fi
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echo "################################################################################"
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echo ""
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echo "All Finished!"
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echo "You can visit the OpenStack Dashboard"
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echo "at http://$DOMU_IP, and contact other services at the usual ports."
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else
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echo "################################################################################"
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echo ""
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echo "All Finished!"
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echo "Now, you can monitor the progress of the stack.sh installation by "
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echo "tailing /opt/stack/run.sh.log from within your domU."
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echo ""
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echo "ssh into your domU now: 'ssh stack@$DOMU_IP' using your password"
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echo "and then do: 'tail -f /opt/stack/run.sh.log'"
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echo ""
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echo "When the script completes, you can then visit the OpenStack Dashboard"
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echo "at http://$DOMU_IP, and contact other services at the usual ports."
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fi
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