When a directory service was not found, Terraform was panicking due to
`dir := out.DirectoryDescriptions[0]`. The AWS API doesn't throw an
Error in this case. IT just return s0 results. Therefore, we should
check for 0 results in the return and remove the directory from the
state
This commit uses Riviera to register the Microsoft.Compute provider as a
canary for whether or not the Azure account credentials are set up. It
used to use the MS client, but that appeared to panic internally if the
credentials were bad. It's possible that we were using it wrong, but
there are no docs so ¯\_(ツ)_/¯.
As part of this, we parellelise the registration of the other providers.
This shaves the latency of each provider request times the number of
providers minus 1 off the "startup" time of the AzureRM provider. The
result is quite noticeable.
As I've been working through the resources, I'm finding that a lot are
going to need some serious work. Given we have hundreds, I think it
might be prudent to make this opt-in for now and we can revisit
automatic/opt-out at some future point.
Importability will likely be opt-in it appears so this will match up
with that.
* Add Triton Metadata modification AccTest.
The test starts the basic machine and then adds the metadata field
user_data.
Test fails if the user_data field does not match what we expect
OR it times out.
Related to hashicorp/terraform#6148
* Fix the non-convergence of Triton metadata changes
The code waiting for the entire Machine Metadata to "deep equal" the Terraform
metadata modifications. These two sets will only be the same if the user
changes all metadata fields of the resource before calling `apply`.
Closeshashicorp/terraform#6148
It can come in handy to be able to mount ISOs programmatically.
For instance if you're developing a custom appliance (that automatically installs itself on the hard drive volume)
that you want to automatically test on every successful build (given the ISO is uploaded to the vmware datastore).
There are probably lots of other reasons for using this functionality.
