Couple questions that pertain to customizing cloudstack to fit better into our 
environment.  First question is related to DNS.  What needs to be done to make 
it so the DHCP addresses that are assigned in cloudstack can be pushed back 
dynamically to our company DNS?  Is it as simple as setting up an rndc key?  
We'd like this functionality so that the self-service part is truly self 
service and as automated as possible.  I would guess the changes would need to 
be made on the virtual router, but how could we make it so any future routers 
that are spun up pickup these changes as well...is that possible?

Second question has to do with modifying an instance's resources.  Is it 
possible to resize an instance, say add additional memory without creating a 
new Compute Offering, maybe using the API?  The one thought I had on doing this 
was to use the API, create a new computer offering with the specs you want, 
stop the VM, assign this compute offering, start up the VM, then remove the 
computer offering.  I'm sure there are issues with that, but it seems odd that 
you can't just add memory or an extra CPU or <insert whatever> without creating 
a whole new compute offering for existing instances.

Thanks,
Caleb

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