diff --git a/.gitignore b/.gitignore
index adeb344f1..89e8fe742 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,5 +6,12 @@
 # OSX trash
 .DS_Store
 
+# Certificate related credential files
+*.pem
+*.crt
+*.cer
+*.key
+*.p12
+
 # apiserver local up cert trash
 apiserver.local.config