The gbucket driver creates an auxiliary bucket for each repo. The formula for creating these buckets doesn't comply with Google's bucket naming guidelines.
In our case, Steve tracked down the error to:
Error 400: Use of this bucket name is restricted: 'ahrens-grayscale-z1833b-dvidrepo-b2be653d80ad40e6b749a9336f392ab8', invalid
That name is invalid because it is 65 characters long, and the naming guidelines say:
The gbucket driver creates an auxiliary bucket for each repo. The formula for creating these buckets doesn't comply with Google's bucket naming guidelines.
In our case, Steve tracked down the error to:
That name is invalid because it is 65 characters long, and the naming guidelines say: