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Hi,

A blue print was created and Joshua even wrote quite huge text. Right now
this BP in Drafting stage, so I want to bring this BP to life and continue
working on the topic. I even tried to make some changes without approvement
(only just as experiment) and got negative feedbacks.
These steps I did when tried to implement this BP:

1) Moved snapshot functionality from Compute to Conductor (as I understood
it's the best place for such things, need clarification);
Even this step should be done in two steps:
a) Add snapshot_instance() method to Conductor that just calls the same
method from Compute;
b) After that move all error-handling / state transition / etc  logic from
Compute to Conductor. Compute exposes API for drivers (see step 2);

2) The hardest part is a common, convenient, complete API for drivers. Most
drivers do  almost the same things in the snapshot method:
a) Goes to Glance and registers new image there;
b) Makes snapshot;
c) Downloads the image to the Glance;
d) Clean temporary files;

I would really appreciate any thoughts and questions.

Thanks,
Alexander
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