diff --git a/.dockerignore b/.dockerignore
index 72e8ffc0d..e63620f87 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1 +1,3 @@
-*
+buildroot
+buildroot-external
+buildroot-patches
diff --git a/Dockerfile b/Dockerfile
index e33f603fa..56c459a61 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,5 +18,9 @@ RUN apt-get update && apt-get install -y \
         git make g++ file perl bash binutils locales qemu-utils \
     && rm -rf /var/lib/apt/lists/*
 
+# Init entry
+COPY scripts/entry.sh /usr/sbin/
+ENTRYPOINT ["/usr/sbin/entry.sh"]
+
 # Get buildroot
 WORKDIR /build