Add watcher client install support

Change-Id: I24ea46941576c43564554a94ac52fe54979016a9

manifests/client.pp

@@ -0,0 +1,24 @@
+# == Class: watcher::client
+#
+# Installs the watcher python library.
+#
+# === Parameters:
+#
+# [*ensure*]
+#   (Optional) Ensure state for pachage.
+#   Defaults to 'present'.
+#
+class watcher::client (
+  $ensure = 'present'
+) {
+
+  include ::watcher::deps
+  include ::watcher::params
+
+  package { 'python-watcherclient':
+    ensure => $ensure,
+    name   => $::watcher::params::client_package_name,
+    tag    => 'openstack',
+  }
+
+}

manifests/params.pp

@@ -12,6 +12,7 @@ class watcher::params {
       $applier_service_name         = 'openstack-watcher-applier'
       $decision_engine_package_name = 'openstack-watcher-decision-engine'
       $decision_engine_service_name = 'openstack-watcher-decision-engine'
+      $client_package_name          = undef
     }
     'Debian': {
       $api_service_name             = 'watcher-api'
@@ -21,6 +22,7 @@ class watcher::params {
       $applier_service_name         = 'watcher-applier'
       $decision_engine_package_name = 'watcher-decision-engine'
       $decision_engine_service_name = 'watcher-decision-engine'
+      $client_package_name          = 'python-watcherclient'
     }
     default: {
       fail("Unsupported osfamily: ${::osfamily} operatingsystem")

spec/classes/watcher_client_spec.rb

@@ -0,0 +1,35 @@
+require 'spec_helper'
+
+describe 'watcher::client' do
+
+  shared_examples_for 'watcher client' do
+
+    it { is_expected.to contain_class('watcher::deps') }
+    it { is_expected.to contain_class('watcher::params') }
+
+    it 'installs watcher client package' do
+      is_expected.to contain_package('python-watcherclient').with(
+        :ensure => 'present',
+        :name   => platform_params[:client_package_name],
+        :tag    => 'openstack',
+      )
+    end
+  end
+
+  on_supported_os({
+    :supported_os => OSDefaults.get_supported_os
+  }).each do |os,facts|
+    context "on #{os}" do
+      let (:facts) do
+        facts.merge!(OSDefaults.get_facts())
+      end
+
+      let :platform_params do
+        { :client_package_name => 'python-watcherclient' }
+      end
+
+      it_behaves_like 'watcher client'
+    end
+  end
+
+end