Add grenade job

This patch set adds grenade support to Watcher based on
legacy-dsvm-base job.

Change-Id: I9e23f59f7415aa350b2da644d8801621533b69b0

devstack/upgrade/upgrade.sh

@@ -0,0 +1,70 @@
+#!/usr/bin/env bash
+
+# ``upgrade-watcher``
+
+echo "*********************************************************************"
+echo "Begin $0"
+echo "*********************************************************************"
+
+# Clean up any resources that may be in use
+cleanup() {
+    set +o errexit
+
+    echo "********************************************************************"
+    echo "ERROR: Abort $0"
+    echo "********************************************************************"
+
+    # Kill ourselves to signal any calling process
+    trap 2; kill -2 $$
+}
+
+trap cleanup SIGHUP SIGINT SIGTERM
+
+# Keep track of the grenade directory
+RUN_DIR=$(cd $(dirname "$0") && pwd)
+
+# Source params
+source $GRENADE_DIR/grenaderc
+
+# Import common functions
+source $GRENADE_DIR/functions
+
+# This script exits on an error so that errors don't compound and you see
+# only the first error that occurred.
+set -o errexit
+
+# Upgrade watcher
+# ============
+
+# Get functions from current DevStack
+source $TARGET_DEVSTACK_DIR/stackrc
+source $TARGET_DEVSTACK_DIR/lib/apache
+source $TARGET_DEVSTACK_DIR/lib/tls
+source $(dirname $(dirname $BASH_SOURCE))/settings
+source $(dirname $(dirname $BASH_SOURCE))/plugin.sh
+
+# Print the commands being run so that we can see the command that triggers
+# an error.  It is also useful for following allowing as the install occurs.
+set -o xtrace
+
+# Save current config files for posterity
+[[ -d $SAVE_DIR/etc.watcher ]] || cp -pr $WATCHER_CONF_DIR $SAVE_DIR/etc.watcher
+
+# Install the target watcher
+install_watcher
+
+# calls upgrade-watcher for specific release
+upgrade_project watcher $RUN_DIR $BASE_DEVSTACK_BRANCH $TARGET_DEVSTACK_BRANCH
+
+# Migrate the database
+watcher-db-manage upgrade || die $LINO "DB migration error"
+
+start_watcher
+
+# Don't succeed unless the services come up
+ensure_services_started watcher-api watcher-decision-engine watcher-applier
+
+set +o xtrace
+echo "*********************************************************************"
+echo "SUCCESS: End $0"
+echo "*********************************************************************"