Daisy Create GCS Bucket is not idempotent.

[jeremyje]

If you run Daisy for the first time in parallel it'll crash because the create bucket is not idempotent.

compute-image-tools/daisy/workflow.go

Line 54 in 423907b

if err := client.Bucket(dBkt).Create(ctx, project, nil); err != nil {

Basically if you get the following error it should proceed anyways because the bucket was created between the get-create sequence.

OUR_DAISY_WORKFLOW_NAME: error populating workflow: APIError: googleapi: Error 409: You already own this bucket. Please select another name., conflict

This looks like a problem in various parts of the codebase.