Elastic doesn't offer any official packages for Linux/ARM. Filebeat can be built for ARM without a problem. Our Jenkins server publishes a filebeat binary built for ARM, but it's just the binary and not any of the supporting config/scripts.
You can download the file from here. The directory marked as "634-593db38bf771abf33cae3824d64de8cd74bb4da4" (that's the build id and the git commit) is from the commit associated with the 5.0.0-alpha4 tag in Github. S3 purges the files after ~3 weeks so that dir won't be around for long.
Apache, Apache Lucene, Apache Hadoop, Hadoop, HDFS and the yellow elephant logo are trademarks of the Apache Software Foundation in the United States and/or other countries.