Accept array or hash for enable_provider_drivers

The [api_settings] enable_provider_drivers parameter is DictOpt and
accepts a string value which represents a dictionary. This change
allows using array or hash for this parameter so that users can use
a more "native" type to define its value.

Change-Id: Icfa01a6cba5f4eda68d51ec2740f24fbc049f6e2

manifests/api.pp

@@ -180,6 +180,12 @@ class octavia::api (
     include octavia::db::sync
   }
 
+  if $provider_drivers =~ Hash {
+    $provider_drivers_real = join(join_keys_to_values($provider_drivers, ':'), ',')
+  } else {
+    $provider_drivers_real = join(any2array($provider_drivers), ',')
+  }
+
   octavia_config {
     'api_settings/bind_host':                      value => $host;
     'api_settings/bind_port':                      value => $port;
@@ -189,7 +195,7 @@ class octavia::api (
     'api_settings/api_v2_enabled':                 value => $api_v2_enabled;
     'api_settings/allow_tls_terminated_listeners': value => $allow_tls_terminated_listeners;
     'api_settings/default_provider_driver':        value => $default_provider_driver;
-    'api_settings/enabled_provider_drivers':       value => $provider_drivers;
+    'api_settings/enabled_provider_drivers':       value => $provider_drivers_real;
     'api_settings/pagination_max_limit':           value => $pagination_max_limit;
     'api_settings/healthcheck_enabled':            value => $healthcheck_enabled;
     'api_settings/healthcheck_refresh_interval':   value => $healthcheck_refresh_interval;

releasenotes/notes/convert-provider_drivers-922ba756396e154c.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    The ``octavia::api::provider_drivers`` parameter now supports array or hash
+    value, and the given value is conveted to correctly formatted string when
+    being put into octavia.conf.

spec/classes/octavia_api_spec.rb

@@ -12,7 +12,7 @@ describe 'octavia::api' do
       :api_v2_enabled                 => true,
       :allow_tls_terminated_listeners => false,
       :default_provider_driver        => 'ovn',
-      :provider_drivers               => { 'amphora' => 'Octavia Amphora Driver', 'ovn' => 'Octavia OVN driver' },
+      :provider_drivers               => 'amphora:Octavia Amphora Driver,ovn:Octavia OVN driver',
       :pagination_max_limit           => '1000',
       :healthcheck_enabled            => true,
       :healthcheck_refresh_interval   => 5,
@@ -74,7 +74,7 @@ describe 'octavia::api' do
       end
     end
 
-    it 'configures bind_host and bind_port' do
+    it 'configures parameters' do
       is_expected.to contain_octavia_config('api_settings/bind_host').with_value( params[:host] )
       is_expected.to contain_octavia_config('api_settings/bind_port').with_value( params[:port] )
       is_expected.to contain_octavia_config('api_settings/api_handler').with_value( params[:api_handler] )
@@ -179,6 +179,36 @@ describe 'octavia::api' do
           .with_value('TLSv1')
       end
     end
+
+    context 'with provider_drivers in array' do
+      before do
+        params.merge!({
+          :provider_drivers => [
+            'amphora:Octavia Amphora driver',
+            'ovn:Octavia OVN driver'
+          ]
+        })
+      end
+      it 'configures parameters' do
+        is_expected.to contain_octavia_config('api_settings/enabled_provider_drivers')\
+          .with_value('amphora:Octavia Amphora driver,ovn:Octavia OVN driver')
+      end
+    end
+
+    context 'with provider_drivers in hash' do
+      before do
+        params.merge!({
+          :provider_drivers => {
+            'amphora' => 'Octavia Amphora driver',
+            'ovn'     => 'Octavia OVN driver'
+          }
+        })
+      end
+      it 'configures parameters' do
+        is_expected.to contain_octavia_config('api_settings/enabled_provider_drivers')\
+          .with_value('amphora:Octavia Amphora driver,ovn:Octavia OVN driver')
+      end
+    end
   end
 
   shared_examples 'octavia-api wsgi' do