Increase quotas and number of threads for tempest

Increase quotas for Cinder (Generic driver case) and Manila.
Increase number of threads for tempest run to simulate concurrency and
have test run in shorter time slot.

Change-Id: Ic7473c94eeb2b45533c028352b56e4027cd7eead

contrib/ci/post_test_hook.sh

@@ -31,7 +31,7 @@ fi
 set +o errexit
 cd $BASE/new/tempest
 
-export TEMPEST_CONCURRENCY=6
+export TEMPEST_CONCURRENCY=12
 export MANILA_TESTS='tempest.cli.*manila*'
 if [[ ! "$ZUUL_PROJECT" =~ python-manilaclient ]]; then
     MANILA_TESTS+=' tempest.api.share*';

contrib/devstack/extras.d/70-manila.sh

@@ -7,6 +7,7 @@ if is_service_enabled manila; then
     elif [[ "$1" == "stack" && "$2" == "install" ]]; then
         echo_summary "Installing Manila"
         install_manila
+        set_cinder_quotas
     elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
         echo_summary "Configuring Manila"
         configure_manila

contrib/devstack/lib/manila

@@ -162,6 +162,19 @@ function set_config_opts {
     fi
 }
 
+function set_cinder_quotas {
+    # Update Cinder configuration to make sure default quotas are enough
+    # for Manila using Generic driver with parallel testing.
+    if is_service_enabled cinder; then
+        if [[ ! "$CINDER_CONF" ]]; then
+            CINDER_CONF=/etc/cinder/cinder.conf
+        fi
+        iniset $CINDER_CONF DEFAULT quota_volumes 50
+        iniset $CINDER_CONF DEFAULT quota_snapshots 50
+        iniset $CINDER_CONF DEFAULT quota_gigabytes 1000
+    fi
+}
+
 # configure_manila - Set config files, create data dirs, etc
 function configure_manila {
     setup_develop $MANILA_DIR

manila/quota.py

@@ -32,10 +32,10 @@ LOG = logging.getLogger(__name__)
 
 quota_opts = [
     cfg.IntOpt('quota_shares',
-               default=10,
+               default=50,
                help='Number of shares allowed per project.'),
     cfg.IntOpt('quota_snapshots',
-               default=10,
+               default=50,
                help='Number of share snapshots allowed per project.'),
     cfg.IntOpt('quota_gigabytes',
                default=1000,