Setup for using the Grenade 'early_create' phase

* Create a 'devstack/upgrade/resources.sh' file to be used by
   Grenade.
 * Create an 'early_create' phase to call the create_ovs_tap()
   function.
 * Refactor the create_ovs_tap() function to accept an argument for
   the network to use.

Change-Id: I0efe427a7023d0336f25856c362c655c138102df

devstack/lib/ironic

@@ -650,16 +650,19 @@ function stop_ironic {
     sudo rm -rf $IRONIC_LIBVIRT_HOOKS_PATH/qemu
 }
 
+# create_ovs_taps is also called by the devstack/upgrade/resources.sh script
+#
+# create_ovs_taps ironic_network_id
 function create_ovs_taps {
     local ironic_net_id
-    ironic_net_id=$(neutron net-list | grep private | get_field 1)
+    ironic_net_id=$1
     die_if_not_set $LINENO ironic_net_id "Failed to get ironic network id"
 
     # Work around: No netns exists on host until a Neutron port is created.  We
     # need to create one in Neutron to know what netns to tap into prior to the
     # first node booting.
     local port_id
-    port_id=$(neutron port-create private | grep " id " | get_field 2)
+    port_id=$(neutron port-create ${ironic_net_id} | grep " id " | get_field 2)
     die_if_not_set $LINENO port_id "Failed to create neutron port"
 
     # intentional sleep to make sure the tag has been set to port
@@ -735,7 +738,9 @@ function create_bridge_and_vms {
             $vbmc_port $log_arg $IRONIC_VM_SPECS_DISK_FORMAT" >> $IRONIC_VM_MACS_CSV_FILE
         vbmc_port=$((vbmc_port+1))
     done
-    create_ovs_taps
+    local ironic_net_id
+    ironic_net_id=$(neutron net-list | grep private | get_field 1)
+    create_ovs_taps $ironic_net_id
 }
 
 function wait_for_nova_resources {

devstack/upgrade/resources.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+#
+# Copyright 2015 Hewlett-Packard Development Company, L.P.
+# Copyright 2016 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+set -o errexit
+
+source $GRENADE_DIR/grenaderc
+source $GRENADE_DIR/functions
+
+source $TOP_DIR/openrc admin admin
+
+IRONIC_DEVSTACK_DIR=$(cd $(dirname "$0")/.. && pwd)
+source $IRONIC_DEVSTACK_DIR/lib/ironic
+
+set -o xtrace
+
+
+function early_create {
+    local net_id
+    net_id=$(resource_get network net_id)
+    create_ovs_taps $net_id
+}
+
+function create {
+    :
+}
+
+function verify {
+    :
+}
+
+function verify_noapi {
+    :
+}
+
+function destroy {
+    :
+}
+
+# Dispatcher
+case $1 in
+    "early_create")
+        early_create
+        ;;
+    "create")
+        create
+        ;;
+    "verify_noapi")
+        verify_noapi
+        ;;
+    "verify")
+        verify
+        ;;
+    "destroy")
+        destroy
+        ;;
+    "force_destroy")
+        set +o errexit
+        destroy
+        ;;
+esac
+