test/openstack: Add possibility to reinstall devstack on required branch

Change-Id: Ia1a55c32bee9eb60c2d49729915a2b9119b73fb3
Signed-off-by: Pawel Kaminski <pawelx.kaminski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/468991
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>

test/openstack/install_devstack.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+testdir=$(readlink -f $(dirname $0))
+rootdir=$(readlink -f $testdir/../..)
+
+function usage()
+{
+	[[ -n $2 ]] && ( echo "$2"; echo ""; )
+	echo "Devstack installation script"
+	echo "Usage: $(basename $1) [OPTIONS]"
+	echo "--branch=BRANCH    Define which version of openstack"
+	echo "                   should be installed. Default is master."
+	echo "-h, --help         Print help and exit"
+
+	exit 0
+}
+
+
+branch="master"
+while getopts 'h-:' optchar; do
+	case "$optchar" in
+		-)
+		case "$OPTARG" in
+			help) usage $0 ;;
+			branch=*) branch="${OPTARG#*=}" ;;
+		esac
+		;;
+	h) usage $0 ;;
+	*) usage $0 "Invalid argument '$OPTARG'"
+	esac
+done
+
+cd /opt/stack/devstack
+su -c "./unstack.sh" -s /bin/bash stack
+
+cd /opt/stack
+rm -rf cinder devstack glance keystone heat horizon neutron nova placement requirements tacker tacker-horizon tempest
+
+if [[ $branch == "master" ]]; then
+	su -c "git clone https://opendev.org/openstack-dev/devstack" -s /bin/bash stack
+else
+	su -c "git clone https://opendev.org/openstack-dev/devstack -b stable/$branch" -s /bin/bash stack
+fi
+cp $rootdir/scripts/vagrant/local.conf /opt/stack/devstack/local.conf
+
+cd /opt/stack/devstack
+su -c "./stack.sh" -s /bin/bash stack
+source openrc admin admin
+openstack volume type create SPDK --public