scenario001: enable IPv6 on centos7

Allow to deploy scenario001 on IPv6 networks when running CentOS7 jobs:
* ceilometer
* aodh
* gnocchi

Change-Id: Ide911c1bf805860fe1bac0bf50da10b1f5528714

README.md

@@ -34,7 +34,7 @@ scenario](#All-In-One).
 |     -      | scenario001 | scenario002 | scenario003 | scenario-aio |
 |:----------:|:-----------:|:-----------:|:-----------:|:-------------:
 | ssl        |     yes     |      yes    |      no     |      no      |
-| ipv6       |     no      |      yes    |      no     |      no      |
+| ipv6       |   centos7   |    centos7  |      no     |      no      |
 | keystone   |      X      |       X     |       X     |       X      |
 | glance     |     rbd     |     swift   |     file    |     file     |
 | nova       |     rbd     |       X     |       X     |       X      |

fixtures/scenario001.pp

@@ -14,9 +14,22 @@
 # limitations under the License.
 #
 
+case $::osfamily {
+  'Debian': {
+    $ipv6 = false
+  }
+  'RedHat': {
+    $ipv6 = true
+  }
+  default: {
+    fail("Unsupported osfamily (${::osfamily})")
+  }
+}
+
 include ::openstack_integration
 class { '::openstack_integration::config':
-  ssl => true,
+  ssl  => true,
+  ipv6 => $ipv6,
 }
 include ::openstack_integration::cacert
 include ::openstack_integration::rabbitmq