On 23/02/16 15:58, Ludwig Tirazona wrote:
Hello Everyone,
I want to understand the Architecture a bit more. Thanks in advance for
any answers.
1.) The docs tell me that trove-guestagent connects to a RabbitMQ host
to listen for instructions. Is this RabbitMQ host typically the one that
the other OpenStack services connect to?
2.) If yes, how does that normally occur, given that the Trove Instance
is usually isolated in its own tenant network, and my RabbitMQ is
located on the Internal Network (no public access)?
3.) I'm trying to make my own Guest Image, and have found the
documentation to be lacking. I've momentarily given up on making one
using the diskimage-builder and trove-integration. Is it "acceptable" to
just use an Ubuntu Cloud Image, install MySQL and trove-guestagent on
it, then use that as a Datastore? Is that a sane route to take, or am I
missing something important?
Good questions!
1/ You can (and should) use a different rabbit (or at least a different
user if the same rabbit)
2/ Umm, don't make it the same in general...and yes the docs are
strangely silent here! There is some work underway to clarify and
improve the security separation.
3/ Yes, this is fiddly - need to make sure that user names etc match,
otherwise spawned instance just sits in 'BUILDING' forever (I think I've
posted on this issue during the Juno cycle...on this list too I think -
have a search for more details). I managed to get mine working using
disk-image-builder but things could have changed.
Overall, the setup is quite complex and unforgiving, and you have
clearly identified the murky areas that could benefit from some doc
revision!
regards
Mark
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