POS fails to run create_disk_data_tarballs for elastic search on genetics data

[jdhayhurst]

Describe the bug As part of POS, for make image, the create_disk_data_tarballs step throws an error which breaks the image creation step. The code is as follows:

tar czf - -C ${path_source} . | gsutil cp - ${path_destination}

Note that removing the z flag from tar makes this work without error.

Observed behaviour Error is as follows:

google_metadata_script_runner[1831]: error while communicating with "startup-script" script: bufio.Scanner: token too long
google_metadata_script_runner[1831]: Script "startup-script" failed with error: signal: broken pipe

Expected behaviour When we run make image it completes without errors

To Reproduce Steps to reproduce the behaviour:

1. using the full genetics platform data
2. run make image