Add scenario003, rebalance projects across scenarios and tweak workers

scenario001 would install successfully but run out of RAM during
the tempest run.
Create a third scenario and rebalance configuration across these
three different tests.
Additionnally, use the new --service-workers parameter to hardcode
"2" instead of defaulting to $::processorcount which is 8 in the gate
to lower memory usage.

Change-Id: I92a3f45766d45d6a7ee34f0ff306cf67c26e34f6

README.md

@@ -182,22 +182,23 @@ reproduce these tests on your environment if you wish.
 
 This is the current matrix of available tests:
 
-|     -      | scenario001 | scenario002 |
-|:----------:|:-----------:|:-----------:|
-| keystone   |      X      |       X     |
-| glance     |      X      |       X     |
-| nova       |      X      |       X     |
-| neutron    |      X      |       X     |
-| cinder     |      X      |             |
-| ceilometer |      X      |             |
-| aodh       |      X      |             |
-| heat       |             |       X     |
-| swift      |             |       X     |
-| sahara     |             |       X     |
-| trove      |             |       X     |
-| horizon    |             |       X     |
-| manila     |      X      |             |
-| nagios     |      X      |             |
+|     -      | scenario001 | scenario002 | scenario003 |
+|:----------:|:-----------:|:-----------:|:------------:
+| keystone   |      X      |      X      |      X      |
+| glance     |    file     |    swift    |     file    |
+| nova       |      X      |      X      |      X      |
+| neutron    |      X      |      X      |      X      |
+| cinder     |      X      |             |             |
+| ceilometer |             |             |      X      |
+| aodh       |             |             |      X      |
+| gnocchi    |             |             |      X      |
+| heat       |             |             |      X      |
+| swift      |             |      X      |             |
+| sahara     |             |      X      |             |
+| trove      |             |      X      |             |
+| horizon    |      X      |             |             |
+| manila     |      X      |             |             |
+| nagios     |      X      |             |             |
 
 To run these tests:
 

tests/scenario001.sh

@@ -9,24 +9,23 @@ echo -e "Generating packstack config for:
 - nova
 - neutron (ovs+vxlan)
 - cinder (lvm+iscsi)
-- ceilometer
-- aodh
-- gnocchi
-- trove
 - manila
 - nagios
-- tempest (regex: 'smoke TelemetryAlarming')"
+- tempest (regex: 'smoke')"
 echo "tempest will run if packstack's installation completes successfully."
 echo
 
 $SUDO packstack --allinone \
           --debug \
+          --service-workers=2 \
           --default-password="packstack" \
+          --os-aodh-install=n \
+          --os-ceilometer-install=n \
+          --os-gnocchi-install=n \
           --os-swift-install=n \
-          --os-horizon-install=n \
           --os-manila-install=y \
-          --glance-backend=swift \
+          --glance-backend=file \
           --provision-demo=y \
           --provision-tempest=y \
           --run-tempest=y \
-          --run-tempest-tests="smoke TelemetryAlarming" || export FAILURE=true
+          --run-tempest-tests="smoke dashboard" || export FAILURE=true

tests/scenario002.sh

@@ -8,10 +8,8 @@ echo -e "Generating packstack config for:
 - glance (swift backend)
 - nova
 - neutron (ovs+vxlan)
-- heat
 - swift
 - sahara
-- horizon
 - trove
 - tempest (regex: 'smoke dashboard')"
 echo "tempest will run if packstack's installation completes successfully."
@@ -19,17 +17,18 @@ echo
 
 $SUDO packstack --allinone \
           --debug \
+          --service-workers=2 \
           --default-password="packstack" \
           --os-aodh-install=n \
           --os-ceilometer-install=n \
           --os-gnocchi-install=n \
           --os-cinder-install=n \
+          --os-horizon-install=n \
           --nagios-install=n \
           --glance-backend=swift \
           --os-sahara-install=y \
-          --os-heat-install=y \
           --os-trove-install=y \
           --provision-demo=y \
           --provision-tempest=y \
           --run-tempest=y \
-          --run-tempest-tests="smoke dashboard" || export FAILURE=true
+          --run-tempest-tests="smoke" || export FAILURE=true

tests/scenario003.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+if [ $(id -u) != 0 ]; then
+    SUDO='sudo'
+fi
+
+echo -e "Generating packstack config for:
+- keystone
+- glance (file backend)
+- nova
+- neutron (ovs+vxlan)
+- ceilometer
+- aodh
+- gnocchi
+- heat
+- tempest (regex: 'smoke TelemetryAlarming')"
+echo "tempest will run if packstack's installation completes successfully."
+echo
+
+$SUDO packstack --allinone \
+          --debug \
+          --service-workers=2 \
+          --default-password="packstack" \
+          --os-swift-install=n \
+          --os-horizon-install=n \
+          --glance-backend=file \
+          --os-heat-install=y \
+          --provision-demo=y \
+          --provision-tempest=y \
+          --run-tempest=y \
+          --run-tempest-tests="smoke TelemetryAlarming" || export FAILURE=true