diff --git a/manifests/init.pp b/manifests/init.pp
index 861b4db9..d9a5fe03 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -56,6 +56,12 @@
 #   (optional) What RPC queue/exchange to use (string value)
 #   Defaults to $::os_service_default
 #
+# [*default_transport_url*]
+#    (optional) A URL representing the messaging driver to use and its full
+#    configuration. Transport URLs take the form:
+#      transport://user:pass@host1:port[,hostN:portN]/virtual_host
+#    Defaults to $::os_service_default
+#
 # [*rpc_backend*]
 #   (optional) what rpc/queuing service to use (string value)
 #   Defaults to $::os_service_default
@@ -296,6 +302,7 @@ class ironic (
   $enabled_drivers                    = ['pxe_ipmitool'],
   $control_exchange                   = $::os_service_default,
   $rpc_response_timeout               = $::os_service_default,
+  $default_transport_url              = $::os_service_default,
   $rpc_backend                        = $::os_service_default,
   $rabbit_host                        = $::os_service_default,
   $rabbit_hosts                       = $::os_service_default,
@@ -415,6 +422,7 @@ class ironic (
   }
 
   oslo::messaging::default {'ironic_config':
+      transport_url        => $default_transport_url,
       rpc_response_timeout => $rpc_response_timeout,
       control_exchange     => $control_exchange,
   }
diff --git a/releasenotes/notes/add_transport_url_parameter-61fed8f4428a1b8e.yaml b/releasenotes/notes/add_transport_url_parameter-61fed8f4428a1b8e.yaml
new file mode 100644
index 00000000..08f8df0b
--- /dev/null
+++ b/releasenotes/notes/add_transport_url_parameter-61fed8f4428a1b8e.yaml
@@ -0,0 +1,3 @@
+---
+features:
+  - Add oslo.messaging transport_url parameter via puppet-oslo resource
\ No newline at end of file
diff --git a/spec/classes/ironic_init_spec.rb b/spec/classes/ironic_init_spec.rb
index d1f8650f..4dc2e968 100644
--- a/spec/classes/ironic_init_spec.rb
+++ b/spec/classes/ironic_init_spec.rb
@@ -126,6 +126,7 @@ describe 'ironic' do
       is_expected.to contain_ironic_config('DEFAULT/my_ip').with_value('<SERVICE DEFAULT>')
       is_expected.to contain_ironic_config('DEFAULT/rpc_response_timeout').with_value('<SERVICE DEFAULT>')
       is_expected.to contain_ironic_config('DEFAULT/control_exchange').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_ironic_config('DEFAULT/transport_url').with_value('<SERVICE DEFAULT>')
     end
   end