Clarify debug statements in image-upload
Clarify debug statements in image-upload

The current situation can result in database records with no log
explanation of how they got there.  Make sure we always log the
snapshot image id when we create the row.

Change-Id: I1fd425853eb4b3e80f5809d051aba558f84543f2

seandst/nodepool,Tesora/tesora-nodepool,seandst/nodepool,Tesora/tesora-nodepool