Upcoming changes for the ec2 provider

Rick Harding rick.harding at canonical.com
Thu Oct 6 12:30:27 UTC 2016

Thanks Andrew, this is great to hear. Can I bug you about details as to how
it works? Does this introduce their pricing API as a blocker to deploying
with Juju? If they introduce a change to the API we miss or their API goes
down is there any sort of cache of the info that users can continue with
until service is restored?

On Thu, Oct 6, 2016 at 4:52 AM Andrew Wilkins <andrew.wilkins at canonical.com>

> Hi folks,
> Just a heads up to let you know about some changes made to the ec2
> provider, which will show up in Juju 2.0.
> We are now pulling down the Price List API (
> http://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/price-changes.html)
> and using that to determine which instance types to launch. This means that
> you will have access to more instance types now, and we should have more
> accurate/up-to-date pricing information, and region availability.
> The default constraints for controllers has been modified, so that on ec2
> we will now default controller machines to t2.medium, as long as you have a
> default VPC in your region, or you specify one by ID (--config vpc-id=...).
> We were previously defaulting to m3.medium. The t2.medium instances have a
> little more memory, and 2 CPUs instead of 1. They are burstable instances,
> so they should suit controllers managing a small-to-medium set of
> applications. Controllers are now started with 32GiB root disk, instead of
> 8GiB as they were before.
> As before, you can override the defaults by specifying constraints at
> bootstrap time. Also, these changes do not affect non-controller instances.
> If you use "add-machine", you will get an m3.medium if your region supports
> them.
> Cheers,
> Andrew
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