Without AWS Signature V4, jclouds doesn't work with Frankfurt

[Adrian Cole <ad...@gmail.com>]

Andrew Gaul mentioned this before, but it is worthwhile calling out
that our AWS support is at least partially broken for all recent
jclouds versions.

In May of 2012, Amazon announced a new way to sign requests, which
implies use of a stronger signature, version 4. Andrew Gaul opened an
issue on this for S3, which I've recently repurposed for all AWS.

https://issues.apache.org/jira/browse/JCLOUDS-480

This Signature V4 announcement went with a policy of new regions only
supporting that. Since we never implemented that, it is now creeping
up as AuthorizationExpections connecting to Frankfurt.
https://issues.apache.org/jira/browse/JCLOUDS-777

This was complicated by some other bugs in our neglected AWS codebase,
including the impossibility to filter out regions due to two latent
bugs.
https://issues.apache.org/jira/browse/JCLOUDS-774 <- fixed
https://issues.apache.org/jira/browse/JCLOUDS-781 <- not yet

I'm working on all of these issues, but in the future, we really need
to be more proactive. Running the AWSEC2TemplateBuilderLiveTest would
have picked this up the minute the frankfurt region came online. This
test creates no resources, so doesn't cost anything to run. I am
working on that test to make it easier to maintain as well.

It used to be the case that we executed live tests on major releases,
in hidsight, we'd have had more heads-up on this issue if we did that.
It is important for jclouds long-term survival to have more than one
person keeping the aws-ec2 fire burning; it is our most important
compute cloud provider. Relying on me to paratroop in every 2 years
and fix everything is not the answer.

-A

Re: Without AWS Signature V4, jclouds doesn't work with Frankfurt

[Andrew Phillips <ap...@qrmedia.com>]

> It used to be the case that we executed live tests on major releases,

The release threads do contain live tests [1]. But, er, I can't see  
any for aws-ec2, and we certainly need to pay more attention to what  
the live tests are actually telling us :-(

Thanks for getting Frankfurt going, Adrian!

ap

[1] http://markmail.org/thread/fpcpa27c7b6r2gz2