Cleanup functionality improved

1. All the existing external networks will be preserved.
2. Forced deleting is used for volumes with wrong status.
3. Added forced removing of hanging ports in case of
   network:router_interface ownership.

Change-Id: Ibd51b98d6bf2a5d82f16f070003128e3200f99ed
Signed-off-by: Viktor Tikkanen <viktor.tikkanen@nokia.com>
(cherry picked from commit 5380c97d53cf7f198e75e9cd5531e758edbc76ff)

2 files changed, 39 insertions, 19 deletions

diff --git a/testcases/VIM/OpenStack/CI/libraries/clean_openstack.py b/testcases/VIM/OpenStack/CI/libraries/clean_openstack.py
index 4f950b228..eab89d22d 100644
--- a/testcases/VIM/OpenStack/CI/libraries/clean_openstack.py
+++ b/testcases/VIM/OpenStack/CI/libraries/clean_openstack.py
@@ -134,8 +134,14 @@ def remove_volumes(cinder_client):
         if functest_utils.delete_volume(cinder_client, volume_id):
             logger.debug("  > Done!")
         else:
-            logger.info("  > ERROR: There has been a problem removing the "
-                        "volume %s..." % volume_id)
+            logger.debug("Trying forced removal...")
+            if functest_utils.delete_volume(cinder_client,
+                                            volume_id,
+                                            forced=True):
+                logger.debug("  > Done!")
+            else:
+                logger.info("  > ERROR: There has been a problem removing the "
+                            "volume %s..." % volume_id)
 
 
 def remove_floatingips(nova_client):
@@ -177,11 +183,13 @@ def remove_networks(neutron_client):
             net_id = network['id']
             net_name = network['name']
             logger.debug(" '%s', ID=%s " %(net_name,net_id))
-            if net_name not in default_networks:
-                logger.debug("    > this is not a default network and will be deleted.")
-                network_ids.append(net_id)
-            else:
+            if net_name in default_networks:
                 logger.debug("   > this is a default network and will NOT be deleted.")
+            elif network['router:external'] == True:
+                logger.debug("   > this is an external network and will NOT be deleted.")
+            else:
+                logger.debug("   > this network will be deleted.")
+                network_ids.append(net_id)
 
     #delete ports
     ports = functest_utils.get_port_list(neutron_client)
@@ -225,6 +233,7 @@ def remove_ports(neutron_client, ports, network_ids):
                 else:
                     logger.info("  > ERROR: There has been a problem removing the "
                                 "port %s ..." %port_id)
+                    force_remove_port(neutron_client, port_id)
 
             elif port['device_owner'] == 'network:router_interface':
                 logger.debug("Detaching port %s (subnet %s) from router %s ..."
@@ -236,16 +245,21 @@ def remove_ports(neutron_client, ports, network_ids):
                 else:
                     logger.info("  > ERROR: There has been a problem removing the "
                                 "interface %s from router %s..." %(subnet_id,router_id))
+                    force_remove_port(neutron_client, port_id)
             else:
-                logger.debug("Clearing device_owner for port %s ..." % port_id)
-                functest_utils.update_neutron_port(neutron_client,
-                                                   port_id,
-                                                   device_owner='clear')
-                logger.debug("Removing port %s ..." % port_id)
-                if functest_utils.delete_neutron_port(neutron_client, port_id):
-                    logger.debug("  > Done!")
-                else:
-                    logger.debug("  > Port %s could not be removed directly" % port_id)
+                force_remove_port(neutron_client, port_id)
+
+
+def force_remove_port(neutron_client, port_id):
+    logger.debug("Clearing device_owner for port %s ..." % port_id)
+    functest_utils.update_neutron_port(neutron_client,
+                                       port_id,
+                                       device_owner='clear')
+    logger.debug("Removing port %s ..." % port_id)
+    if functest_utils.delete_neutron_port(neutron_client, port_id):
+        logger.debug("  > Done!")
+    else:
+        logger.info("  > ERROR: Deleting port %s failed" % port_id)
 
 
 def remove_routers(neutron_client, routers):
diff --git a/testcases/functest_utils.py b/testcases/functest_utils.py
index 888c043fd..53f5706c9 100644
--- a/testcases/functest_utils.py
+++ b/testcases/functest_utils.py
@@ -414,10 +414,16 @@ def get_volumes(cinder_client):
     except:
         return None
 
-
-def delete_volume(cinder_client, volume_id):
-    try:
-        cinder_client.volumes.delete(volume_id)
+def delete_volume(cinder_client, volume_id, forced=False):
+    try:
+        if forced:
+            try:
+                cinder_client.volumes.detach(volume_id)
+            except:
+                print "Error:", sys.exc_info()[0]
+            cinder_client.volumes.force_delete(volume_id)
+        else:
+            cinder_client.volumes.delete(volume_id)
         return True
     except:
         print "Error:", sys.exc_info()[0]