bifrost/tools/create_vm_nodes.sh
Julia Kreger 9e88296cd1 Correct legacy VM creation script to specify driver
Added columns 13 thru 16  which defines the ipmi_target*, ipmi_transit*
and ironic driver fields which in this case default to empty and agent_ssh for
the driver.

Change-Id: I32feb85ae5dc2343aa1b0a3cca92ee4697fd2c05
2015-07-02 11:52:27 -07:00

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#!/bin/bash
#############################################################################
# create_nodes.sh - Script to create VM nodes for use with Ironic.
#
# PURPOSE
# This script can be used to create VM instances without an operating
# system and that are ready for netbooting. They are connected to the
# bridge named 'brbm' (created if it does not exist).
#
# EXAMPLE USAGE
# # Use defaults - Create a single node with base name of 'testvm'
# sudo create_nodes.sh
#
# # Create 5 nodes
# sudo NODECOUNT=5 create_nodes.sh
#
# # Create 3 nodes with base name of 'junk'
# sudo NODEBASE=junk NODECOUNT=3 create_nodes.sh
#
# # Write out the csv file
# sudo OUTFILE=/path/to/file.csv create_nodes.sh
#
# THANKS
# Thanks to the author(s) of the Ironic supporting code within devstack,
# from which all of this is derived.
#
# AUTHOR
# David Shrewsbury (shrewsbury.dave@gmail.com)
#############################################################################
set -e # exit immediately on command error
set -u # treat unset variables as error when substituting
LIBVIRT_CONNECT_URI=${LIBVIRT_CONNECT_URI:-"qemu:///system"}
export VIRSH_DEFAULT_CONNECT_URI="$LIBVIRT_CONNECT_URI"
# VM specs
VM_EMULATOR=${VM_EMULATOR:-/usr/bin/qemu-system-x86_64}
VM_CPU=${VM_CPU:-1}
VM_RAM=${VM_RAM:-3072}
VM_DISK=${VM_DISK:-10}
# VM network
VM_NET_BRIDGE=${VM_NET_BRIDGE:-default}
# VM logging directory
VM_LOGDIR=/var/log/libvirt/baremetal_logs
CSV_OUTPUT="CSV entries:"
#############################################################################
# FUNCTION
# create_node
#
# PARAMETERS
# $1: Virtual machine name
# $2: Number of CPUs for the VM
# $3: Amount of RAM for the VM
# $4: Disk size (in GB) for the VM
# $5: CPU architecture (i386 or amd64)
# $6: Network bridge for the VMs
# $7: Path to VM emulator
# $8: Logging directory for the VMs
#############################################################################
function create_node {
NAME=$1
CPU=$2
MEM=$(( 1024 * $3 ))
# extra G to allow fuzz for partition table : flavor size and registered size
# need to be different to actual size.
DISK=$(( $4 + 1))
case $5 in
i386) ARCH='i686' ;;
amd64) ARCH='x86_64' ;;
*) echo "Unsupported arch $5!" ; exit 1 ;;
esac
BRIDGE=$6
EMULATOR=$7
LOGDIR=$8
LIBVIRT_NIC_DRIVER=${LIBVIRT_NIC_DRIVER:-"e1000"}
LIBVIRT_STORAGE_POOL=${LIBVIRT_STORAGE_POOL:-"default"}
LIBVIRT_CONNECT_URI=${LIBVIRT_CONNECT_URI:-"qemu:///system"}
if ! virsh pool-list --all | grep -q $LIBVIRT_STORAGE_POOL; then
virsh pool-define-as --name $LIBVIRT_STORAGE_POOL dir --target /var/lib/libvirt/images >&2
virsh pool-autostart $LIBVIRT_STORAGE_POOL >&2
virsh pool-start $LIBVIRT_STORAGE_POOL >&2
fi
pool_state=$(virsh pool-info $LIBVIRT_STORAGE_POOL | grep State | awk '{ print $2 }')
if [ "$pool_state" != "running" ] ; then
[ ! -d /var/lib/libvirt/images ] && mkdir /var/lib/libvirt/images
virsh pool-start $LIBVIRT_STORAGE_POOL >&2
fi
if [ -n "$LOGDIR" ] ; then
mkdir -p "$LOGDIR"
fi
PREALLOC=
if [ -f /etc/debian_version ]; then
PREALLOC="--prealloc-metadata"
fi
VM_LOGGING="$LOGDIR/${NAME}_console.log"
VOL_NAME="${NAME}.qcow2"
if ! virsh list --all | grep -q $NAME; then
virsh vol-list --pool $LIBVIRT_STORAGE_POOL | grep -q $VOL_NAME &&
virsh vol-delete $VOL_NAME --pool $LIBVIRT_STORAGE_POOL >&2
virsh vol-create-as $LIBVIRT_STORAGE_POOL ${VOL_NAME} ${DISK}G --format qcow2 $PREALLOC >&2
volume_path=$(virsh vol-path --pool $LIBVIRT_STORAGE_POOL $VOL_NAME)
# Pre-touch the VM to set +C, as it can only be set on empty files.
touch "$volume_path"
chattr +C "$volume_path" || true
vm_xml="
<domain type='qemu'>
<name>${NAME}</name>
<memory unit='KiB'>${MEM}</memory>
<vcpu>${CPU}</vcpu>
<os>
<type arch='${ARCH}' machine='pc-1.0'>hvm</type>
<boot dev='network'/>
<bootmenu enable='no'/>
<bios useserial='yes'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>${EMULATOR}</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='writeback'/>
<source file='${volume_path}'/>
<target dev='vda' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</disk>
<controller type='ide' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
</controller>
<interface type='network'>
<source network='${BRIDGE}'/>
</interface>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes'/>
<video>
<model type='cirrus' vram='9216' heads='1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
<serial type='file'>
<source path='${VM_LOGGING}'/>
<target port='0'/>
<alias name='serial0'/>
</serial>
<serial type='pty'>
<source path='/dev/pts/49'/>
<target port='1'/>
<alias name='serial1'/>
</serial>
<console type='file'>
<source path='${VM_LOGGING}'/>
<target type='serial' port='0'/>
<alias name='serial0'/>
</console>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</memballoon>
</devices>
</domain>
"
echo ${vm_xml} > /tmp/vm.xml
virsh create /tmp/vm.xml 2>&1 >/dev/null
if [ $? != 0 ]
then
echo "failed to create VM $NAME"
rm -f /tmp/vm.xml
exit 1
fi
rm -f /tmp/vm.xml
fi
# echo mac
local macaddr=`virsh dumpxml $NAME | grep "mac address" | head -1 | cut -d\' -f2`
echo $macaddr
}
####################
# Main script code
####################
NODEBASE=${NODEBASE:-testvm}
NODECOUNT=${NODECOUNT:-1}
# must be root
user=`whoami`
if [ "$user" != "root" ]
then
echo "Must be run as root. You are $user."
exit 1
fi
CSV_LINES=()
IFS=$'\n'
for (( i=1; i<=${NODECOUNT}; i++ ))
do
name=${NODEBASE}${i}
mac=$(create_node $name $VM_CPU $VM_RAM $VM_DISK amd64 $VM_NET_BRIDGE $VM_EMULATOR $VM_LOGDIR)
CSV_LINES+=("$mac,root,undefined,192.168.122.1,$VM_CPU,$VM_RAM,$VM_DISK,flavor,type,a8cb6624-0d9f-c882-affc-046ebb96ec0${i},$name,192.168.122.$((i+1)),,,,agent_ssh")
done
echo ${CSV_OUTPUT}
echo -e "${CSV_LINES[*]}"
if [ $OUTFILE ]; then
echo -e "${CSV_LINES[*]}" > $OUTFILE
fi