[openstack-dev] [heat] Heat API v2 - Removal of template_url?

Stephen Gran stephen.gran at theguardian.com
Thu Dec 5 16:28:08 UTC 2013

On 05/12/13 16:11, ELISHA, Moshe (Moshe) wrote:
> Hey,
> I really liked the v2 Heat API (as proposed in Create a new v2 Heat API
> <https://blueprints.launchpad.net/heat/+spec/v2api>) and I think it
> makes a lot of sense.
> One of the proposed changes is to “Remove template_url from the request
> POST”, so the template will be passed using the “template” parameter in
> the request body.
> Could someone please elaborate how exactly Heat Orchestration Templates
> written in YAML will be embedded in the body?
> As I understand the YAML template should be inserted as string otherwise
> JSON parsers will not be able to parse the JSON body.
> If indeed the template is inserted as string, as far as I know, JSON
> does not support multiline strings and the available workarounds are not
> so pretty and require escaping.
> The escaping issue gets more complicated when "UserData" is used in the
> Will the “template_url” be removed and if so how will the “template”
> contain the YAML template?

Oh, that would be sad indeed.  We're just looking at this pattern in AWS:

And using that in heat as well would be very welcome.

Stephen Gran
Senior Systems Integrator - theguardian.com
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