diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 000000000..0d3b667e9
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,12 @@
+.git
+DATA*
+RELEASE
+yacy.log
+classes
+test
+snap
+examples
+build.nsi
+README.md
+Heroku.md
+