diff --git a/.dockerignore b/.dockerignore
index 93c4253..bc5ed23 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,4 +1,12 @@
-target
-Tiltfile
-manifests
-orig-compose
+# Ignore everything by default
+
+*
+
+# Except the stuff we need
+
+!.dockerignore
+!Dockerfile
+!orig-compose/
+!src/
+!Cargo.lock
+!Cargo.toml