Refactor resource dependencies

This refactors resource dependencies to avoid unnecessary dependencies
across services. For example zaqar service does not require cinder db.

Change-Id: I46c28803dd2eb0e88a25d165c768f61f565fd8e6

manifests/coordination.pp

@@ -26,4 +26,8 @@ class mistral::coordination (
   mistral_config {
     'coordination/heartbeat_interval': value => $heartbeat_interval;
   }
+
+  # all coordination settings should be applied and all packages should be
+  # installed before service startup
+  Oslo::Coordination['mistral_config'] -> Anchor['mistral::service::begin']
 }

manifests/db.pp

@@ -69,4 +69,7 @@ class mistral::db (
     db_max_retries          => $database_db_max_retries,
   }
 
+  # all db settings should be applied and all packages should be installed
+  # before dbsync starts
+  Oslo::Db['mistral_config'] -> Anchor['mistral::dbsync::begin']
 }

manifests/deps.pp

@@ -24,19 +24,6 @@ class mistral::deps {
   ~> Service<| tag == 'mistral-service' |>
   ~> anchor { 'mistral::service::end': }
 
-  # all coordination settings should be applied and all packages should be
-  # installed before service startup
-  Oslo::Coordination<||> -> Anchor['mistral::service::begin']
-
-  # all db settings should be applied and all packages should be installed
-  # before dbsync starts
-  Oslo::Db<||> -> Anchor['mistral::dbsync::begin']
-
-  # policy config should occur in the config block
-  Anchor['mistral::config::begin']
-  -> Openstacklib::Policy<| tag == 'mistral' |>
-  -> Anchor['mistral::config::end']
-
   # We need openstackclient before marking service end so that mistral
   # will have clients available to create resources. This tag handles the
   # openstackclient but indirectly since the client is not available in

manifests/keystone/authtoken.pp

@@ -279,4 +279,6 @@ class mistral::keystone::authtoken(
       service_type                   => $service_type,
       interface                      => $interface;
   }
+
+  Keystone::Resource::Authtoken['mistral_config'] -> Anchor['mistral::config::end']
 }

manifests/policy.pp

@@ -70,6 +70,11 @@ class mistral::policy (
 
   create_resources('openstacklib::policy', { $policy_path => $policy_parameters })
 
+  # policy config should occur in the config block
+  Anchor['mistral::config::begin']
+  -> Openstacklib::Policy[$policy_path]
+  -> Anchor['mistral::config::end']
+
   oslo::policy { 'mistral_config':
     enforce_scope        => $enforce_scope,
     enforce_new_defaults => $enforce_new_defaults,