Use common way to get the openstack clients

Instead of repeating the code in all the scripts and
importing the openstack libraries, the clients shall
be given by openstack utils, which is its purpose

JIRA: FUNCTEST-163

Change-Id: I1ccc05a3af44ee1ab5938ea9e4e01dbe55f4816d
Signed-off-by: jose.lausuch <jose.lausuch@ericsson.com>

4 files changed, 119 insertions, 166 deletions

diff --git a/testcases/OpenStack/rally/run_rally-cert.py b/testcases/OpenStack/rally/run_rally-cert.py
index 47b826d6c..c4804739b 100755
--- a/testcases/OpenStack/rally/run_rally-cert.py
+++ b/testcases/OpenStack/rally/run_rally-cert.py
@@ -13,26 +13,21 @@
 # 0.3 (19/10/2015) remove Tempest from run_rally
 # and push result into test DB
 #
+""" tests configuration """
+
 import argparse
-import iniparse
 import json
 import os
 import re
 import subprocess
 import time
-import yaml
-
-from novaclient import client as novaclient
-from glanceclient import client as glanceclient
-from keystoneclient.v2_0 import client as keystoneclient
-from neutronclient.v2_0 import client as neutronclient
-from cinderclient import client as cinderclient
-
 import functest.utils.functest_logger as ft_logger
 import functest.utils.functest_utils as functest_utils
-import functest.utils.openstack_utils as openstack_utils
+import functest.utils.openstack_utils as os_utils
+import iniparse
+import yaml
+
 
-""" tests configuration """
 tests = ['authenticate', 'glance', 'cinder', 'heat', 'keystone',
          'neutron', 'nova', 'quotas', 'requests', 'vm', 'all']
 parser = argparse.ArgumentParser()
@@ -65,7 +60,6 @@ parser.add_argument("-z", "--sanity",
 
 args = parser.parse_args()
 
-client_dict = {}
 network_dict = {}
 
 if args.verbose:
@@ -122,6 +116,7 @@ CINDER_VOLUME_TYPE_NAME = "volume_test"
 
 
 SUMMARY = []
+neutron_client = None
 
 
 def get_task_id(cmd_raw):
@@ -187,7 +182,7 @@ def build_task_args(test_file_name):
         task_args['full_mode'] = True
         task_args['smoke'] = args.smoke
 
-    ext_net = openstack_utils.get_external_net(client_dict['neutron'])
+    ext_net = os_utils.get_external_net(neutron_client)
     if ext_net:
         task_args['floating_network'] = str(ext_net)
     else:
@@ -378,6 +373,13 @@ def run_task(test_name):
 def main():
     global SUMMARY
     global network_dict
+    global neutron_client
+
+    nova_client = os_utils.get_nova_client()
+    neutron_client = os_utils.get_neutron_client()
+    glance_client = os_utils.get_glance_client()
+    cinder_client = os_utils.get_cinder_client()
+
     start_time = time.time()
     stop_time = start_time
 
@@ -387,29 +389,11 @@ def main():
         exit(-1)
 
     SUMMARY = []
-    creds_nova = openstack_utils.get_credentials("nova")
-    nova_client = novaclient.Client('2', **creds_nova)
-    creds_neutron = openstack_utils.get_credentials("neutron")
-    neutron_client = neutronclient.Client(**creds_neutron)
-    creds_keystone = openstack_utils.get_credentials("keystone")
-    keystone_client = keystoneclient.Client(**creds_keystone)
-    glance_endpoint = keystone_client.service_catalog.url_for(
-        service_type='image', endpoint_type='publicURL')
-    glance_client = glanceclient.Client(1, glance_endpoint,
-                                        token=keystone_client.auth_token)
-    creds_cinder = openstack_utils.get_credentials("cinder")
-    cinder_client = cinderclient.Client('2', creds_cinder['username'],
-                                        creds_cinder['api_key'],
-                                        creds_cinder['project_id'],
-                                        creds_cinder['auth_url'],
-                                        service_type="volume")
-
-    client_dict['neutron'] = neutron_client
-
-    volume_types = openstack_utils.list_volume_types(cinder_client,
-                                                     private=False)
+
+    volume_types = os_utils.list_volume_types(cinder_client,
+                                              private=False)
     if not volume_types:
-        volume_type = openstack_utils.create_volume_type(
+        volume_type = os_utils.create_volume_type(
             cinder_client, CINDER_VOLUME_TYPE_NAME)
         if not volume_type:
             logger.error("Failed to create volume type...")
@@ -420,15 +404,15 @@ def main():
     else:
         logger.debug("Using existing volume type(s)...")
 
-    image_id = openstack_utils.get_image_id(glance_client, GLANCE_IMAGE_NAME)
+    image_id = os_utils.get_image_id(glance_client, GLANCE_IMAGE_NAME)
     image_exists = False
 
     if image_id == '':
         logger.debug("Creating image '%s' from '%s'..." % (GLANCE_IMAGE_NAME,
                                                            GLANCE_IMAGE_PATH))
-        image_id = openstack_utils.create_glance_image(glance_client,
-                                                       GLANCE_IMAGE_NAME,
-                                                       GLANCE_IMAGE_PATH)
+        image_id = os_utils.create_glance_image(glance_client,
+                                                GLANCE_IMAGE_NAME,
+                                                GLANCE_IMAGE_PATH)
         if not image_id:
             logger.error("Failed to create the Glance image...")
             exit(-1)
@@ -441,19 +425,19 @@ def main():
         image_exists = True
 
     logger.debug("Creating network '%s'..." % PRIVATE_NET_NAME)
-    network_dict = openstack_utils.create_network_full(logger,
-                                                       client_dict['neutron'],
-                                                       PRIVATE_NET_NAME,
-                                                       PRIVATE_SUBNET_NAME,
-                                                       ROUTER_NAME,
-                                                       PRIVATE_SUBNET_CIDR)
+    network_dict = os_utils.create_network_full(logger,
+                                                neutron_client,
+                                                PRIVATE_NET_NAME,
+                                                PRIVATE_SUBNET_NAME,
+                                                ROUTER_NAME,
+                                                PRIVATE_SUBNET_CIDR)
     if not network_dict:
         logger.error("Failed to create network...")
         exit(-1)
     else:
-        if not openstack_utils.update_neutron_net(client_dict['neutron'],
-                                                  network_dict['net_id'],
-                                                  shared=True):
+        if not os_utils.update_neutron_net(neutron_client,
+                                           network_dict['net_id'],
+                                           shared=True):
             logger.error("Failed to update network...")
             exit(-1)
         else:
@@ -555,13 +539,13 @@ def main():
     if not image_exists:
         logger.debug("Deleting image '%s' with ID '%s'..."
                      % (GLANCE_IMAGE_NAME, image_id))
-        if not openstack_utils.delete_glance_image(nova_client, image_id):
+        if not os_utils.delete_glance_image(nova_client, image_id):
             logger.error("Error deleting the glance image")
 
     if not volume_types:
         logger.debug("Deleting volume type '%s'..."
                      % CINDER_VOLUME_TYPE_NAME)
-        if not openstack_utils.delete_volume_type(cinder_client, volume_type):
+        if not os_utils.delete_volume_type(cinder_client, volume_type):
             logger.error("Error in deleting volume type...")
 
 
diff --git a/testcases/OpenStack/tempest/run_tempest.py b/testcases/OpenStack/tempest/run_tempest.py
index ab79a8768..c773091bb 100755
--- a/testcases/OpenStack/tempest/run_tempest.py
+++ b/testcases/OpenStack/tempest/run_tempest.py
@@ -13,6 +13,7 @@
 # which accompanies this distribution, and is available at
 # http://www.apache.org/licenses/LICENSE-2.0
 #
+import ConfigParser
 import argparse
 import os
 import re
@@ -20,16 +21,12 @@ import shutil
 import subprocess
 import sys
 import time
-import yaml
-import ConfigParser
-
-import keystoneclient.v2_0.client as ksclient
-from glanceclient import client as glanceclient
-from neutronclient.v2_0 import client as neutronclient
 
 import functest.utils.functest_logger as ft_logger
 import functest.utils.functest_utils as ft_utils
 import functest.utils.openstack_utils as os_utils
+import yaml
+
 
 modes = ['full', 'smoke', 'baremetal', 'compute', 'data_processing',
          'identity', 'image', 'network', 'object_storage', 'orchestration',
@@ -123,23 +120,24 @@ def get_info(file_result):
 
 
 def create_tempest_resources():
-    ks_creds = os_utils.get_credentials("keystone")
+
+    keystone_client = os_utils.get_keystone_client()
+    neutron_client = os_utils.get_neutron_client()
+    glance_client = os_utils.get_glance_client()
+
     logger.debug("Creating tenant and user for Tempest suite")
-    keystone = ksclient.Client(**ks_creds)
-    tenant_id = os_utils.create_tenant(keystone,
+    tenant_id = os_utils.create_tenant(keystone_client,
                                        TENANT_NAME,
                                        TENANT_DESCRIPTION)
     if tenant_id == '':
         logger.error("Error : Failed to create %s tenant" % TENANT_NAME)
 
-    user_id = os_utils.create_user(keystone, USER_NAME, USER_PASSWORD,
+    user_id = os_utils.create_user(keystone_client, USER_NAME, USER_PASSWORD,
                                    None, tenant_id)
     if user_id == '':
         logger.error("Error : Failed to create %s user" % USER_NAME)
 
     logger.debug("Creating private network for Tempest suite")
-    creds_neutron = os_utils.get_credentials("neutron")
-    neutron_client = neutronclient.Client(**creds_neutron)
     network_dic = os_utils.create_network_full(logger,
                                                neutron_client,
                                                PRIVATE_NET_NAME,
@@ -159,10 +157,6 @@ def create_tempest_resources():
         exit(-1)
 
     logger.debug("Creating image for Tempest suite")
-    glance_endpoint = keystone.service_catalog.url_for(
-        service_type='image', endpoint_type='publicURL')
-    glance_client = glanceclient.Client(1, glance_endpoint,
-                                        token=keystone.auth_token)
     # Check if the given image exists
     image_id = os_utils.get_image_id(glance_client, GLANCE_IMAGE_NAME)
     if image_id != '':
@@ -367,7 +361,7 @@ def run_tempest(OPTION):
         error_logs = ""
 
         for match in re.findall('(.*?)[. ]*FAILED', output):
-                error_logs += match
+            error_logs += match
 
         # Generate json results for DB
         json_results = {"timestart": time_start, "duration": dur_sec_int,
diff --git a/testcases/OpenStack/vPing/vPing_ssh.py b/testcases/OpenStack/vPing/vPing_ssh.py
index 1609dd95b..2ef2dfc10 100755
--- a/testcases/OpenStack/vPing/vPing_ssh.py
+++ b/testcases/OpenStack/vPing/vPing_ssh.py
@@ -16,22 +16,17 @@
 import argparse
 import datetime
 import os
-import paramiko
 import pprint
 import re
 import sys
 import time
-import yaml
-from scp import SCPClient
-
-from novaclient import client as novaclient
-from neutronclient.v2_0 import client as neutronclient
-from keystoneclient.v2_0 import client as keystoneclient
-from glanceclient import client as glanceclient
-
 import functest.utils.functest_logger as ft_logger
 import functest.utils.functest_utils as functest_utils
-import functest.utils.openstack_utils as openstack_utils
+import functest.utils.openstack_utils as os_utils
+import paramiko
+from scp import SCPClient
+import yaml
+
 
 pp = pprint.PrettyPrinter(indent=4)
 
@@ -93,7 +88,6 @@ SECGROUP_DESCR = functest_yaml.get("vping").get("vping_sg_descr")
 
 
 def pMsg(value):
-
     """pretty printing"""
     pp.pprint(value)
 
@@ -104,7 +98,7 @@ def waitVmActive(nova, vm):
     sleep_time = 3
     count = VM_BOOT_TIMEOUT / sleep_time
     while True:
-        status = openstack_utils.get_instance_status(nova, vm)
+        status = os_utils.get_instance_status(nova, vm)
         logger.debug("Status: %s" % status)
         if status == "ACTIVE":
             return True
@@ -124,7 +118,7 @@ def waitVmDeleted(nova, vm):
     sleep_time = 3
     count = VM_DELETE_TIMEOUT / sleep_time
     while True:
-        status = openstack_utils.get_instance_status(nova, vm)
+        status = os_utils.get_instance_status(nova, vm)
         if not status:
             return True
         elif count == 0:
@@ -138,15 +132,15 @@ def waitVmDeleted(nova, vm):
 
 
 def create_security_group(neutron_client):
-    sg_id = openstack_utils.get_security_group_id(neutron_client,
-                                                  SECGROUP_NAME)
+    sg_id = os_utils.get_security_group_id(neutron_client,
+                                           SECGROUP_NAME)
     if sg_id != '':
         logger.info("Using existing security group '%s'..." % SECGROUP_NAME)
     else:
         logger.info("Creating security group  '%s'..." % SECGROUP_NAME)
-        SECGROUP = openstack_utils.create_security_group(neutron_client,
-                                                         SECGROUP_NAME,
-                                                         SECGROUP_DESCR)
+        SECGROUP = os_utils.create_security_group(neutron_client,
+                                                  SECGROUP_NAME,
+                                                  SECGROUP_DESCR)
         if not SECGROUP:
             logger.error("Failed to create the security group...")
             return False
@@ -158,19 +152,19 @@ def create_security_group(neutron_client):
 
         logger.debug("Adding ICMP rules in security group '%s'..."
                      % SECGROUP_NAME)
-        if not openstack_utils.create_secgroup_rule(neutron_client, sg_id,
-                                                    'ingress', 'icmp'):
+        if not os_utils.create_secgroup_rule(neutron_client, sg_id,
+                                             'ingress', 'icmp'):
             logger.error("Failed to create the security group rule...")
             return False
 
         logger.debug("Adding SSH rules in security group '%s'..."
                      % SECGROUP_NAME)
-        if not openstack_utils.create_secgroup_rule(
+        if not os_utils.create_secgroup_rule(
                 neutron_client, sg_id, 'ingress', 'tcp', '22', '22'):
             logger.error("Failed to create the security group rule...")
             return False
 
-        if not openstack_utils.create_secgroup_rule(
+        if not os_utils.create_secgroup_rule(
                 neutron_client, sg_id, 'egress', 'tcp', '22', '22'):
             logger.error("Failed to create the security group rule...")
             return False
@@ -178,24 +172,17 @@ def create_security_group(neutron_client):
 
 
 def main():
+    nova_client = os_utils.get_nova_client()
+    neutron_client = os_utils.get_neutron_client()
+    glance_client = os_utils.get_glance_client()
 
-    creds_nova = openstack_utils.get_credentials("nova")
-    nova_client = novaclient.Client('2', **creds_nova)
-    creds_neutron = openstack_utils.get_credentials("neutron")
-    neutron_client = neutronclient.Client(**creds_neutron)
-    creds_keystone = openstack_utils.get_credentials("keystone")
-    keystone_client = keystoneclient.Client(**creds_keystone)
-    glance_endpoint = keystone_client.service_catalog.url_for(
-        service_type='image', endpoint_type='publicURL')
-    glance_client = glanceclient.Client(1, glance_endpoint,
-                                        token=keystone_client.auth_token)
     EXIT_CODE = -1
 
     image_id = None
     flavor = None
 
     # Check if the given image exists
-    image_id = openstack_utils.get_image_id(glance_client, GLANCE_IMAGE_NAME)
+    image_id = os_utils.get_image_id(glance_client, GLANCE_IMAGE_NAME)
     if image_id != '':
         logger.info("Using existing image '%s'..." % GLANCE_IMAGE_NAME)
         global image_exists
@@ -203,21 +190,21 @@ def main():
     else:
         logger.info("Creating image '%s' from '%s'..." % (GLANCE_IMAGE_NAME,
                                                           GLANCE_IMAGE_PATH))
-        image_id = openstack_utils.create_glance_image(glance_client,
-                                                       GLANCE_IMAGE_NAME,
-                                                       GLANCE_IMAGE_PATH)
+        image_id = os_utils.create_glance_image(glance_client,
+                                                GLANCE_IMAGE_NAME,
+                                                GLANCE_IMAGE_PATH)
         if not image_id:
             logger.error("Failed to create a Glance image...")
             return(EXIT_CODE)
         logger.debug("Image '%s' with ID=%s created successfully."
                      % (GLANCE_IMAGE_NAME, image_id))
 
-    network_dic = openstack_utils.create_network_full(logger,
-                                                      neutron_client,
-                                                      PRIVATE_NET_NAME,
-                                                      PRIVATE_SUBNET_NAME,
-                                                      ROUTER_NAME,
-                                                      PRIVATE_SUBNET_CIDR)
+    network_dic = os_utils.create_network_full(logger,
+                                               neutron_client,
+                                               PRIVATE_NET_NAME,
+                                               PRIVATE_SUBNET_NAME,
+                                               ROUTER_NAME,
+                                               PRIVATE_SUBNET_CIDR)
     if not network_dic:
         logger.error(
             "There has been a problem when creating the neutron network")
@@ -265,7 +252,7 @@ def main():
     # wait until VM status is active
     if not waitVmActive(nova_client, vm1):
         logger.error("Instance '%s' cannot be booted. Status is '%s'" % (
-            NAME_VM_1, openstack_utils.get_instance_status(nova_client, vm1)))
+            NAME_VM_1, os_utils.get_instance_status(nova_client, vm1)))
         return (EXIT_CODE)
     else:
         logger.info("Instance '%s' is ACTIVE." % NAME_VM_1)
@@ -276,7 +263,7 @@ def main():
 
     logger.info("Adding '%s' to security group '%s'..."
                 % (NAME_VM_1, SECGROUP_NAME))
-    openstack_utils.add_secgroup_to_instance(nova_client, vm1.id, sg_id)
+    os_utils.add_secgroup_to_instance(nova_client, vm1.id, sg_id)
 
     # boot VM 2
     logger.info("Creating instance '%s'..." % NAME_VM_2)
@@ -292,17 +279,17 @@ def main():
 
     if not waitVmActive(nova_client, vm2):
         logger.error("Instance '%s' cannot be booted. Status is '%s'" % (
-            NAME_VM_2, openstack_utils.get_instance_status(nova_client, vm2)))
+            NAME_VM_2, os_utils.get_instance_status(nova_client, vm2)))
         return (EXIT_CODE)
     else:
         logger.info("Instance '%s' is ACTIVE." % NAME_VM_2)
 
     logger.info("Adding '%s' to security group '%s'..." % (NAME_VM_2,
                                                            SECGROUP_NAME))
-    openstack_utils.add_secgroup_to_instance(nova_client, vm2.id, sg_id)
+    os_utils.add_secgroup_to_instance(nova_client, vm2.id, sg_id)
 
     logger.info("Creating floating IP for VM '%s'..." % NAME_VM_2)
-    floatip_dic = openstack_utils.create_floating_ip(neutron_client)
+    floatip_dic = os_utils.create_floating_ip(neutron_client)
     floatip = floatip_dic['fip_addr']
     # floatip_id = floatip_dic['fip_id']
 
@@ -313,7 +300,7 @@ def main():
 
     logger.info("Associating floating ip: '%s' to VM '%s' "
                 % (floatip, NAME_VM_2))
-    if not openstack_utils.add_floating_ip(nova_client, vm2.id, floatip):
+    if not os_utils.add_floating_ip(nova_client, vm2.id, floatip):
         logger.error("Cannot associate floating IP to VM.")
         return (EXIT_CODE)
 
@@ -358,11 +345,11 @@ def main():
 
         # if dhcp doesnt work,it shows "No lease, failing".The test will fail
         if "No lease, failing" in console_log and not nolease and not got_ip:
-                nolease = True
-                logger.debug("Console-log '%s': No lease, failing..."
-                             % NAME_VM_2)
-                logger.info("The instance failed to get an IP from the "
-                            "DHCP agent. The test will probably timeout...")
+            nolease = True
+            logger.debug("Console-log '%s': No lease, failing..."
+                         % NAME_VM_2)
+            logger.info("The instance failed to get an IP from the "
+                        "DHCP agent. The test will probably timeout...")
 
     if timeout == 0:  # 300 sec timeout (5 min)
         logger.error("Cannot establish connection to IP '%s'. Aborting"
diff --git a/testcases/OpenStack/vPing/vPing_userdata.py b/testcases/OpenStack/vPing/vPing_userdata.py
index cdc411948..8ea7d7905 100755
--- a/testcases/OpenStack/vPing/vPing_userdata.py
+++ b/testcases/OpenStack/vPing/vPing_userdata.py
@@ -21,16 +21,11 @@ import os
 import pprint
 import sys
 import time
-import yaml
-
-from novaclient import client as novaclient
-from neutronclient.v2_0 import client as neutronclient
-from keystoneclient.v2_0 import client as keystoneclient
-from glanceclient import client as glanceclient
-
 import functest.utils.functest_logger as ft_logger
 import functest.utils.functest_utils as functest_utils
-import functest.utils.openstack_utils as openstack_utils
+import functest.utils.openstack_utils as os_utils
+import yaml
+
 
 pp = pprint.PrettyPrinter(indent=4)
 
@@ -90,7 +85,6 @@ SECGROUP_DESCR = functest_yaml.get("vping").get("vping_sg_descr")
 
 
 def pMsg(value):
-
     """pretty printing"""
     pp.pprint(value)
 
@@ -101,7 +95,7 @@ def waitVmActive(nova, vm):
     sleep_time = 3
     count = VM_BOOT_TIMEOUT / sleep_time
     while True:
-        status = openstack_utils.get_instance_status(nova, vm)
+        status = os_utils.get_instance_status(nova, vm)
         logger.debug("Status: %s" % status)
         if status == "ACTIVE":
             return True
@@ -121,7 +115,7 @@ def waitVmDeleted(nova, vm):
     sleep_time = 3
     count = VM_DELETE_TIMEOUT / sleep_time
     while True:
-        status = openstack_utils.get_instance_status(nova, vm)
+        status = os_utils.get_instance_status(nova, vm)
         if not status:
             return True
         elif count == 0:
@@ -135,15 +129,15 @@ def waitVmDeleted(nova, vm):
 
 
 def create_security_group(neutron_client):
-    sg_id = openstack_utils.get_security_group_id(neutron_client,
-                                                  SECGROUP_NAME)
+    sg_id = os_utils.get_security_group_id(neutron_client,
+                                           SECGROUP_NAME)
     if sg_id != '':
         logger.info("Using existing security group '%s'..." % SECGROUP_NAME)
     else:
         logger.info("Creating security group  '%s'..." % SECGROUP_NAME)
-        SECGROUP = openstack_utils.create_security_group(neutron_client,
-                                                         SECGROUP_NAME,
-                                                         SECGROUP_DESCR)
+        SECGROUP = os_utils.create_security_group(neutron_client,
+                                                  SECGROUP_NAME,
+                                                  SECGROUP_DESCR)
         if not SECGROUP:
             logger.error("Failed to create the security group...")
             return False
@@ -155,22 +149,22 @@ def create_security_group(neutron_client):
 
         logger.debug("Adding ICMP rules in security group '%s'..."
                      % SECGROUP_NAME)
-        if not openstack_utils.create_secgroup_rule(neutron_client, sg_id,
-                                                    'ingress', 'icmp'):
+        if not os_utils.create_secgroup_rule(neutron_client, sg_id,
+                                             'ingress', 'icmp'):
             logger.error("Failed to create the security group rule...")
             return False
 
         logger.debug("Adding SSH rules in security group '%s'..."
                      % SECGROUP_NAME)
-        if not openstack_utils.create_secgroup_rule(neutron_client, sg_id,
-                                                    'ingress', 'tcp',
-                                                    '22', '22'):
+        if not os_utils.create_secgroup_rule(neutron_client, sg_id,
+                                             'ingress', 'tcp',
+                                             '22', '22'):
             logger.error("Failed to create the security group rule...")
             return False
 
-        if not openstack_utils.create_secgroup_rule(neutron_client, sg_id,
-                                                    'egress', 'tcp',
-                                                    '22', '22'):
+        if not os_utils.create_secgroup_rule(neutron_client, sg_id,
+                                             'egress', 'tcp',
+                                             '22', '22'):
             logger.error("Failed to create the security group rule...")
             return False
     return sg_id
@@ -178,23 +172,17 @@ def create_security_group(neutron_client):
 
 def main():
 
-    creds_nova = openstack_utils.get_credentials("nova")
-    nova_client = novaclient.Client('2', **creds_nova)
-    creds_neutron = openstack_utils.get_credentials("neutron")
-    neutron_client = neutronclient.Client(**creds_neutron)
-    creds_keystone = openstack_utils.get_credentials("keystone")
-    keystone_client = keystoneclient.Client(**creds_keystone)
-    glance_endpoint = keystone_client.service_catalog.url_for(
-        service_type='image', endpoint_type='publicURL')
-    glance_client = glanceclient.Client(1, glance_endpoint,
-                                        token=keystone_client.auth_token)
+    nova_client = os_utils.get_nova_client()
+    neutron_client = os_utils.get_neutron_client()
+    glance_client = os_utils.get_glance_client()
+
     EXIT_CODE = -1
 
     image_id = None
     flavor = None
 
     # Check if the given image exists
-    image_id = openstack_utils.get_image_id(glance_client, GLANCE_IMAGE_NAME)
+    image_id = os_utils.get_image_id(glance_client, GLANCE_IMAGE_NAME)
     if image_id != '':
         logger.info("Using existing image '%s'..." % GLANCE_IMAGE_NAME)
         global image_exists
@@ -202,21 +190,21 @@ def main():
     else:
         logger.info("Creating image '%s' from '%s'..." % (GLANCE_IMAGE_NAME,
                                                           GLANCE_IMAGE_PATH))
-        image_id = openstack_utils.create_glance_image(glance_client,
-                                                       GLANCE_IMAGE_NAME,
-                                                       GLANCE_IMAGE_PATH)
+        image_id = os_utils.create_glance_image(glance_client,
+                                                GLANCE_IMAGE_NAME,
+                                                GLANCE_IMAGE_PATH)
         if not image_id:
             logger.error("Failed to create a Glance image...")
             return(EXIT_CODE)
         logger.debug("Image '%s' with ID=%s created successfully."
                      % (GLANCE_IMAGE_NAME, image_id))
 
-    network_dic = openstack_utils.create_network_full(logger,
-                                                      neutron_client,
-                                                      PRIVATE_NET_NAME,
-                                                      PRIVATE_SUBNET_NAME,
-                                                      ROUTER_NAME,
-                                                      PRIVATE_SUBNET_CIDR)
+    network_dic = os_utils.create_network_full(logger,
+                                               neutron_client,
+                                               PRIVATE_NET_NAME,
+                                               PRIVATE_SUBNET_NAME,
+                                               ROUTER_NAME,
+                                               PRIVATE_SUBNET_CIDR)
     if not network_dic:
         logger.error(
             "There has been a problem when creating the neutron network")
@@ -270,7 +258,7 @@ def main():
     if not waitVmActive(nova_client, vm1):
 
         logger.error("Instance '%s' cannot be booted. Status is '%s'" % (
-            NAME_VM_1, openstack_utils.get_instance_status(nova_client, vm1)))
+            NAME_VM_1, os_utils.get_instance_status(nova_client, vm1)))
         return (EXIT_CODE)
     else:
         logger.info("Instance '%s' is ACTIVE." % NAME_VM_1)
@@ -305,7 +293,7 @@ def main():
 
     if not waitVmActive(nova_client, vm2):
         logger.error("Instance '%s' cannot be booted. Status is '%s'" % (
-            NAME_VM_2, openstack_utils.get_instance_status(nova_client, vm2)))
+            NAME_VM_2, os_utils.get_instance_status(nova_client, vm2)))
         return (EXIT_CODE)
     else:
         logger.info("Instance '%s' is ACTIVE." % NAME_VM_2)