Replace port 35357 with 5000 for "auth_url"

Based on the change in Keystone Install Guide [1],
this patch replace port 35357 with 5000 for "auth_url".

For more details, please check similar changes which have been done
on other projects: Nova [2], Neutron [3], Cinder [4], Glance [5].

[1] https://review.openstack.org/#/c/541857
[2] https://review.openstack.org/#/c/562812
[3] https://review.openstack.org/#/c/566491
[4] https://review.openstack.org/#/c/565464
[5] https://review.openstack.org/#/c/558932

Change-Id: Ic3d67f6ef1f7fe980154887b62e38155985573c8

manifests/keystone/authtoken.pp

@@ -13,7 +13,7 @@
 #
 # [*auth_url*]
 #   (Optional) The URL to use for authentication.
-#   Defaults to 'http://localhost:35357'.
+#   Defaults to 'http://localhost:5000'.
 #
 # [*project_name*]
 #   (Optional) Service project name
@@ -191,7 +191,7 @@
 class panko::keystone::authtoken(
   $password,
   $username                       = 'panko',
-  $auth_url                       = 'http://localhost:35357',
+  $auth_url                       = 'http://localhost:5000',
   $project_name                   = 'services',
   $user_domain_name               = 'Default',
   $project_domain_name            = 'Default',

spec/classes/panko_keystone_authtoken_spec.rb

@@ -13,7 +13,7 @@ describe 'panko::keystone::authtoken' do
       it 'configure keystone_authtoken' do
         is_expected.to contain_panko_config('keystone_authtoken/username').with_value('panko')
         is_expected.to contain_panko_config('keystone_authtoken/password').with_value('secrete')
-        is_expected.to contain_panko_config('keystone_authtoken/auth_url').with_value('http://localhost:35357')
+        is_expected.to contain_panko_config('keystone_authtoken/auth_url').with_value('http://localhost:5000')
         is_expected.to contain_panko_config('keystone_authtoken/project_name').with_value('services')
         is_expected.to contain_panko_config('keystone_authtoken/user_domain_name').with_value('Default')
         is_expected.to contain_panko_config('keystone_authtoken/project_domain_name').with_value('Default')
@@ -53,7 +53,7 @@ describe 'panko::keystone::authtoken' do
           :www_authenticate_uri                 => 'https://10.0.0.1:9999/',
           :username                             => 'myuser',
           :password                             => 'mypasswd',
-          :auth_url                             => 'https://127.0.0.1:35357',
+          :auth_url                             => 'https://127.0.0.1:5000',
           :project_name                         => 'service_project',
           :user_domain_name                     => 'domainX',
           :project_domain_name                  => 'domainX',