On 11/17/16, 1:39 AM, "Sam Morrison" 
<[email protected]<mailto:[email protected]>> wrote:

On 17 Nov. 2016, at 3:49 pm, Brian Rosmaita 
<[email protected]<mailto:[email protected]>> wrote:

Ocata workflow:  (1) create an image with default visibility, (2) change
its visibility to 'shared', (3) add image members

Unsure why this can't be done in 2 steps, when someone adds an image member to 
a 'private' image the visibility changes to 'shared' automatically.
Just seems an extra step for no reason?

Thanks for asking, Sam, I'm sure others have the same question.

Here's what we're thinking.  We want to avoid "magic" visibility transitions as 
a side effect of another action, and we want all means of changing visibility 
to be consistent going forward.  The two-step 1-1 sharing that automatically 
takes you from 'private' -> 'shared' is dangerous, as it can expose data and 
doesn't give an end user a way to make an image "really" private.  It's true 
that all an end user has to do under the new scheme is make one extra API call 
and then still shoot him/herself in the foot, but at least the end user has to 
remove the safety first by explicitly changing the visibility of the image from 
'private' to 'shared' before the member-list has any effect.

So basically, the reasons for the extra step are consistency and clarity.


Sam

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