Accept system scope credentials for Keystone API request

This change is the first step to support secure RBAC and allows usage
of system scope credentials for Keystone API request.

This change covers the following two items.
 - assignment of system scope roles to system user
 - credential parameters for authtoken middleware

Depends-on: https://review.opendev.org/804325
Change-Id: I8bd8e455c739d6eaa43d3ea22af86003a7617bc9

manifests/keystone/auth.pp

@@ -19,6 +19,18 @@
 #   (Optional) Tenant for tacker user.
 #   Defaults to 'services'.
 #
+# [*roles*]
+#   (Optional) List of roles assigned to tacker user.
+#   Defaults to ['admin']
+#
+# [*system_scope*]
+#   (Optional) Scope for system operations.
+#   Defaults to 'all'
+#
+# [*system_roles*]
+#   (Optional) List of system roles assigned to tacker user.
+#   Defaults to []
+#
 # [*configure_endpoint*]
 #   (Optional) Should tacker endpoint be configured?
 #   Defaults to true.
@@ -67,6 +79,9 @@ class tacker::keystone::auth (
   $auth_name           = 'tacker',
   $email               = 'tacker@localhost',
   $tenant              = 'services',
+  $roles               = ['admin'],
+  $system_scope        = 'all',
+  $system_roles        = [],
   $configure_endpoint  = true,
   $configure_user      = true,
   $configure_user_role = true,
@@ -100,6 +115,9 @@ class tacker::keystone::auth (
     password            => $password,
     email               => $email,
     tenant              => $tenant,
+    roles               => $roles,
+    system_scope        => $system_scope,
+    system_roles        => $system_roles,
     public_url          => $public_url,
     internal_url        => $internal_url,
     admin_url           => $admin_url,

manifests/keystone/authtoken.pp

@@ -27,6 +27,10 @@
 #   (Optional) Name of domain for $project_name
 #   Defaults to 'Default'
 #
+# [*system_scope*]
+#   (Optional) Scope for system operations
+#   Defaults to $::os_service_default
+#
 # [*insecure*]
 #   (Optional) If true, explicitly allow TLS without checking server cert
 #   against any certificate authorities.  WARNING: not recommended.  Use with
@@ -193,6 +197,7 @@ class tacker::keystone::authtoken(
   $project_name                   = 'services',
   $user_domain_name               = 'Default',
   $project_domain_name            = 'Default',
+  $system_scope                   = $::os_service_default,
   $insecure                       = $::os_service_default,
   $auth_section                   = $::os_service_default,
   $auth_type                      = 'password',
@@ -238,6 +243,7 @@ class tacker::keystone::authtoken(
     auth_section                   => $auth_section,
     user_domain_name               => $user_domain_name,
     project_domain_name            => $project_domain_name,
+    system_scope                   => $system_scope,
     insecure                       => $insecure,
     cache                          => $cache,
     cafile                         => $cafile,

releasenotes/notes/system_scope-keystone-1b608a6438b81d20.yaml

@@ -0,0 +1,12 @@
+features:
+  - |
+    The ``system_scope`` parameter has been added to
+    the ``tacker::keystone::authtoken`` class.
+
+  - |
+    The ``tacker::keystone::auth`` class now supports customizing roles
+    assigned to the tacker service user.
+
+  - |
+    The ``tacker::keystone::auth`` class now supports defining assignmet of
+    system-scoped roles to the tacker service user.

spec/classes/tacker_keystone_auth_spec.rb

@@ -23,6 +23,9 @@ describe 'tacker::keystone::auth' do
         :password            => 'tacker_password',
         :email               => 'tacker@localhost',
         :tenant              => 'services',
+        :roles               => ['admin'],
+        :system_scope        => 'all',
+        :system_roles        => [],
         :public_url          => 'http://127.0.0.1:9890',
         :internal_url        => 'http://127.0.0.1:9890',
         :admin_url           => 'http://127.0.0.1:9890',
@@ -35,6 +38,9 @@ describe 'tacker::keystone::auth' do
           :auth_name           => 'alt_tacker',
           :email               => 'alt_tacker@alt_localhost',
           :tenant              => 'alt_service',
+          :roles               => ['admin', 'service'],
+          :system_scope        => 'alt_all',
+          :system_roles        => ['admin', 'member', 'reader'],
           :configure_endpoint  => false,
           :configure_user      => false,
           :configure_user_role => false,
@@ -59,6 +65,9 @@ describe 'tacker::keystone::auth' do
         :password            => 'tacker_password',
         :email               => 'alt_tacker@alt_localhost',
         :tenant              => 'alt_service',
+        :roles               => ['admin', 'service'],
+        :system_scope        => 'alt_all',
+        :system_roles        => ['admin', 'member', 'reader'],
         :public_url          => 'https://10.10.10.10:80',
         :internal_url        => 'http://10.10.10.11:81',
         :admin_url           => 'http://10.10.10.12:81',

spec/classes/tacker_keystone_authtoken_spec.rb

@@ -18,6 +18,7 @@ describe 'tacker::keystone::authtoken' do
           :project_name                   => 'services',
           :user_domain_name               => 'Default',
           :project_domain_name            => 'Default',
+          :system_scope                   => '<SERVICE DEFAULT>',
           :insecure                       => '<SERVICE DEFAULT>',
           :auth_section                   => '<SERVICE DEFAULT>',
           :auth_type                      => 'password',
@@ -62,6 +63,7 @@ describe 'tacker::keystone::authtoken' do
           :project_name                   => 'service_project',
           :user_domain_name               => 'domainX',
           :project_domain_name            => 'domainX',
+          :system_scope                   => '<SERVICE DEFAULT>',
           :insecure                       => false,
           :auth_section                   => 'new_section',
           :auth_type                      => 'password',
@@ -103,6 +105,7 @@ describe 'tacker::keystone::authtoken' do
           :project_name                   => 'service_project',
           :user_domain_name               => 'domainX',
           :project_domain_name            => 'domainX',
+          :system_scope                   => '<SERVICE DEFAULT>',
           :insecure                       => false,
           :auth_section                   => 'new_section',
           :auth_type                      => 'password',