Migrate Openstack VM from Private to Public Cloud

migrate_vm.sh

# Migrate a VM to another StackOps Cloud
# This is the kind of rubbish written by a CEO. Don't be cruel
# ENTER THE USERNAME, PASSWORD AND TENANT OF THE SOURCE AND DESTINATION TENANTS
# ALSO CHECK THE KEYSTONE ENDPOINT
#
#!/usr/bin/env bash
#set -x
SOURCE_KEYSTONE_HOST=<<CHANGE_ME>>
SOURCE_OS_USERNAME=<<CHANGE_ME>>
SOURCE_OS_PASSWORD=<<CHANGE_ME>>
SOURCE_OS_TENANT_NAME=<<CHANGE_ME>>
DEST_KEYSTONE_HOST=<<CHANGE_ME>>
DEST_OS_USERNAME=<<CHANGE_ME>>
DEST_OS_PASSWORD=<<CHANGE_ME>>
DEST_OS_TENANT_NAME=<<CHANGE_ME>>
VM_NAME=$1
FLAVOR=$2
SNAPSHOT_NAME=$1"-snapshot-"`date "+%d%m%Y"`
EXT_NET=ext-net
SOURCE_NOVA_CMD="nova --os-auth-url https://$SOURCE_KEYSTONE_HOST/v2.0 --os-username $SOURCE_OS_USERNAME --os-password $SOURCE_OS_PASSWORD --os-tenant-name $SOURCE_OS_TENANT_NAME --insecure"
SOURCE_GLANCE_CMD="glance --os-auth-url https://$SOURCE_KEYSTONE_HOST/v2.0 --os-username $SOURCE_OS_USERNAME --os-password $SOURCE_OS_PASSWORD --os-tenant-name $SOURCE_OS_TENANT_NAME --insecure"
DEST_NOVA_CMD="nova --os-auth-url https://$DEST_KEYSTONE_HOST/v2.0 --os-username $DEST_OS_USERNAME --os-password $DEST_OS_PASSWORD --os-tenant-name $DEST_OS_TENANT_NAME --insecure"
DEST_GLANCE_CMD="glance --os-auth-url https://$DEST_KEYSTONE_HOST/v2.0 --os-username $DEST_OS_USERNAME --os-password $DEST_OS_PASSWORD --os-tenant-name $DEST_OS_TENANT_NAME --insecure"

# Get the tenant Id
get_net_id()
{
    echo "`neutron --os-auth-url https://$DEST_KEYSTONE_HOST/v2.0 --os-username $DEST_OS_USERNAME --os-password $DEST_OS_PASSWORD --os-tenant-name $DEST_OS_TENANT_NAME --insecure  net-list | grep "$DEST_OS_TENANT_NAME" | awk '/ | / { prin
t $2 }' | head -n 1`"
}

# Get the vm Id
get_vm_id()
{
    echo "`$DEST_NOVA_CMD list | grep "$1" | awk '/ | / { print $2 }'`"
}

# Take a snapshot of the source VM
echo "Start snapshot..."
$SOURCE_NOVA_CMD image-create --poll $VM_NAME $SNAPSHOT_NAME
echo "Snapshot done."

echo "Start download of source snapshot..."
$SOURCE_GLANCE_CMD image-download --progress $SNAPSHOT_NAME --file $SNAPSHOT_NAME.qcow2
echo "Download done."

echo "Delete source snapshot..."
$SOURCE_NOVA_CMD image-delete $SNAPSHOT_NAME
echo "Deleted source snapshot."

echo "Upload snapshot to destination cloud..."
$DEST_GLANCE_CMD image-create --progress --name $SNAPSHOT_NAME --disk-format qcow2 --container-format bare --min-disk 10 --min-ram 1024 --is-public False  --file $SNAPSHOT_NAME.qcow2
echo "Uploaded snapshot"

echo "Delete local file..."
rm $SNAPSHOT_NAME.qcow2
echo "Deleted local file."

echo "Boot uploaded snapshot..."
NET_ID=`get_net_id`
$DEST_NOVA_CMD boot $VM_NAME --flavor $FLAVOR --image $SNAPSHOT_NAME --nic net-id=$NET_ID --poll
VM_ID=`get_vm_id $VM_NAME`
echo "Snapshot booted."

echo "Ask for new public IP"
FLOATING_IP=`$DEST_NOVA_CMD floating-ip-create $EXT_NET | grep "$EXT_NET" | awk '/ | / { print $2 }'`
$DEST_NOVA_CMD add-floating-ip $VM_ID $FLOATING_IP

echo "THE NEW SERVER IS RUNNING IN:  $FLOATING_IP"