We have now released Cumulus version 1.1.0. The new release includes enhanced bundle management and support for CloudFormation stack outputs.
Bundles are no longer uploaded if they already exist on S3 (and if the MD5 checksum isn’t changed). This will minimize the data transfer between the build server and S3. Cumulus will also ensure bundle file integrity by validating MD5 checksums before and after upload to S3.
Cumulus will now print the CloudFormation outputs after a stack creation or update. The new release also introduces the
--output command. It will list all output from the CloudFormation templates.