diff --git a/roles/postgresql_primary.rb b/roles/postgresql_primary.rb
new file mode 100644
index 0000000..0cb0ccd
--- /dev/null
+++ b/roles/postgresql_primary.rb
@@ -0,0 +1,5 @@
+name "postgresql_primary"
+
+run_list %w(
+  kosmos-postgresql::default
+)
diff --git a/roles/postgresql_replica.rb b/roles/postgresql_replica.rb
new file mode 100644
index 0000000..8ee5100
--- /dev/null
+++ b/roles/postgresql_replica.rb
@@ -0,0 +1,5 @@
+name "postgresql_replica"
+
+run_list %w(
+  kosmos-postgresql::replica
+)