Resolve "Write out Terraform outputs"

Closes #6 (closed)

deploy.sh

@@ -173,6 +173,9 @@ fi
 # capture terragrunt exit code
 terragrunt_exit_code=$?
 
+# script error if 'terragrunt output' fails
+set -e
+
 if [ "$DEPLOY_JSON_OUTPUT" ]; then
     /usr/bin/terragrunt output -json -no-color > output.json
 fi