Comment 3 for bug 1398406

The correct fix seems to be renaming "D*" role sizes in gwacl to "Standard_D*", updating pricing/disk sizes/etc. attributes of all D* role sizes (if needed; while at it), and finally updating dependencies.tsv in juju-core to use the updated gwacl.

I started working on the fix described above, but it's getting late and I wasted 2h trying to setup an azure account so I can test the fix. If the fix can't wait until tomorrow, I'm sure Andrew Wilkins can take it over easily. If it's not that urgent I'll propose a fix tomorrow.

Because the fix is in gwacl itself, we can backport it to 1.21/1.20 if needed (to take advantage of the new D* instance types).