diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..7777185
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,3 @@
+# Copy to .env to override docker-compose.yml defaults
+HOST_PORT=5684
+IMAGE=repo.explewd.com/explewd/djupet:latest