diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 00000000..8ff8b6b4
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,6 @@
+# ignore git, caches and such
+.*
+# don't invalidate cache when Dockerfile changes
+Dockerfile
+*.sqlite3
+!.pip-cache/