diff --git a/diagrams/onprem/certificates.py b/diagrams/onprem/certificates.py
new file mode 100644
index 0000000..030e8a4
--- /dev/null
+++ b/diagrams/onprem/certificates.py
@@ -0,0 +1,19 @@
+# This module is automatically generated by autogen.sh. DO NOT EDIT.
+
+from . import _OnPrem
+
+
+class _Certificates(_OnPrem):
+    _type = "certificates"
+    _icon_dir = "resources/onprem/certificates"
+
+
+class CertManager(_Certificates):
+    _icon = "cert-manager.png"
+
+
+class LetsEncrypt(_Certificates):
+    _icon = "lets-encrypt.png"
+
+
+# Aliases
diff --git a/docs/nodes/onprem.md b/docs/nodes/onprem.md
index ff4bcc1..62ec53a 100644
--- a/docs/nodes/onprem.md
+++ b/docs/nodes/onprem.md
@@ -26,6 +26,11 @@ Node classes list of onprem provider.
 - **diagrams.onprem.cd.TektonCli**
 - **diagrams.onprem.cd.Tekton**
 
+## onprem.certificates
+
+- **diagrams.onprem.certificates.CertManager**
+- **diagrams.onprem.certificates.LetsEncrypt**
+
 ## onprem.ci
 
 - **diagrams.onprem.ci.Circleci**, **CircleCI** (alias)
diff --git a/resources/onprem/certificates/cert-manager.png b/resources/onprem/certificates/cert-manager.png
new file mode 100644
index 0000000..72bd275
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diff --git a/resources/onprem/certificates/lets-encrypt.png b/resources/onprem/certificates/lets-encrypt.png
new file mode 100644
index 0000000..9963960
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