diff --git a/manifests/pacemaker/service.pp b/manifests/pacemaker/service.pp
index 8301cc8..f622fb2 100644
--- a/manifests/pacemaker/service.pp
+++ b/manifests/pacemaker/service.pp
@@ -127,6 +127,8 @@ define openstack_extras::pacemaker::service (
   $clone               = false,
 ) {
 
+  warning('This defined resource type has been deprecated and will be removed in a future release')
+
   $service_name     = $title
   $primitive_name   = "p_${service_name}"
   $ocf_script_name  = "${service_name}-ocf-file"
diff --git a/releasenotes/notes/deprecate-pacemaker-service-b34268f01b39d676.yaml b/releasenotes/notes/deprecate-pacemaker-service-b34268f01b39d676.yaml
new file mode 100644
index 0000000..d34724a
--- /dev/null
+++ b/releasenotes/notes/deprecate-pacemaker-service-b34268f01b39d676.yaml
@@ -0,0 +1,5 @@
+---
+deprecations:
+  - |
+    The ``openstack_extras::pacemaker::serices`` defined resource type has been
+    deprecated and will be removed in a future release.