diff --git a/.ignore b/.ignore
new file mode 100644
index 000000000000..865856b43498
--- /dev/null
+++ b/.ignore
@@ -0,0 +1,5 @@
+# Things that we don't want ripgrep to search that we do want in git
+# https://github.com/BurntSushi/ripgrep/blob/master/GUIDE.md#automatic-filtering
+
+# Minified JS vendored from mdbook
+book/theme/highlight.js