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Support for requestor-pays buckets for gcr.io-based docker repository
I have some docker images I want to store on Google Cloud Repository (gcr.io). There is no IP precluding public access, so I don't need to jump through the hoops that would otherwise be required to make gcr.io work for Firecloud. However, I also don't want to be potentially hit with a bunch of data egress fees in case someone wants to download my images out of the Google network. I ought to be able to set the bucket to be 1) publicly readable, and 2) enable requestor-pays. Firecloud does work fine with the bucket set to publicly readable (via https://cloud.google.com/container-registry/docs/access-control), but fails when requestor-pays is also enabled:
error pulling image configuration: error parsing HTTP 400 response body: invalid character '<' looking for beginning of value: "<?xml version='1.0' encoding='UTF-8'?><Error><Code>UserProjectMissing</Code><Message>Bucket is a requester pays bucket but no user project provided.</Message></Error>"
Since Firecloud is running on GCP, there should be no egress charges pulling from this multi-regional bucket.