diff --git a/docker/package_in_docker.sh b/docker/package_in_docker.sh
new file mode 100755
index 00000000..121b5198
--- /dev/null
+++ b/docker/package_in_docker.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+# This script should be executed in docker container.
+set -ex
+cd electron-mattermost
+./node_modules/gulp/bin/gulp.js package