Added script for automatically updating RubyGems

Author: johntopleyons

update-rubygems.sh

@@ -0,0 +1,33 @@
+#!/bin/sh
+set -e
+
+#
+# Script for updating this project's RubyGems to the latest versions by running `bundle install`
+# and committing and pushing the regenerated Gemfile.lock files to GitHub.
+#
+# Usage: update-rubygems.sh
+#
+# Author: John Topley (john.topley@ons.gov.uk)
+#
+echo "Regenerating parent-image/Gemfile.lock..."
+cd ./parent-image
+rm Gemfile.lock
+bundle install
+
+git add Gemfile.lock
+git commit -m "Updated dependencies"
+git push
+
+echo "Waiting 5 minutes for Cloud Build pipeline to build webapp-parent-image..."
+sleep 300
+
+cd ./app
+rm Gemfile.lock
+bundle install
+
+echo "Regenerating app/Gemfile.lock..."
+git add Gemfile.lock
+git commit -m "Updated dependencies"
+git push
+
+echo "Finished!"