diff --git a/data/common.yaml b/data/common.yaml
index ed97d53..e8f0a7d 100644
--- a/data/common.yaml
+++ b/data/common.yaml
@@ -1 +1,2 @@
 ---
+certbot::package: py37-certbot
diff --git a/manifests/init.pp b/manifests/init.pp
new file mode 100644
index 0000000..c13f43c
--- /dev/null
+++ b/manifests/init.pp
@@ -0,0 +1,11 @@
+# install and configure certbot
+class certbot(
+  String[1] $package,
+) {
+
+  package {
+    $package:
+      ensure => present;
+  }
+
+}