Add Swift dispersion profile

The swift-dispersion-populate command needs to be called when Swift and
Keystone are up and running, and therefore we need to ensure this is
running in step 5 or later.

Change-Id: I5b4c08c252b6083dace5a65367920c475de416ce

manifests/profile/base/swift/dispersion.pp

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+# Copyright 2017 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+# == Class: tripleo::profile::base::swift::dispersion
+#
+# Swift dispersion profile for tripleo
+#
+# === Parameters
+#
+# [*step*]
+#   (Optional) The current step in deployment. See tripleo-heat-templates
+#   for more details.
+#   Defaults to hiera('step')
+#
+class tripleo::profile::base::swift::dispersion (
+  $step = Integer(hiera('step')),
+) {
+  if $step >= 5 {
+    include ::swift::client
+    include ::swift::dispersion
+  }
+}

releasenotes/notes/swift-dispersion-profile-09dc69980028e751.yaml

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+---
+features:
+  - |
+    Added a new profile for the setup of the Swift dispersion tool. This will
+    be executed in step 5 or later to ensure Swift and Keystone are already up
+    and running.