diff --git a/.dockerignore b/.dockerignore
deleted file mode 100644
index 23053de..0000000
--- a/.dockerignore
+++ /dev/null
@@ -1 +0,0 @@
-packages/
diff --git a/hooks/build b/hooks/build
new file mode 100644
index 0000000..a43d367
--- /dev/null
+++ b/hooks/build
@@ -0,0 +1,2 @@
+#!/bin/sh
+docker build --build-arg BUILD_DATE=$(date -u +%Y-%m-%dT%H:%M:%SZ) -t $IMAGE_NAME .