Open Stack

On 24/09/14 13:50, Dimitri Mazmanov wrote:
> TL;DR Is there any reason why stack-update doesn¹t reuse the existing
> parameters when I extend my stack definition with a resource that uses
> them?

Hey Dimitri,

There is an open bug for this feature:

https://bugs.launchpad.net/heat/+bug/1224828

and it seems to be being worked on.

> 
> I have created a stack from the hello_world.yaml template
> (https://github.com/openstack/heat-templates/blob/master/hot/hello_world.ya
> ml)
> It has the following parameters keyname, image, flavor, admin_pass,
> db_port.
> 
> heat stack-create hello_world -P
> "key_name=test_keypair;image=test_image_cirros;flavor=m1.test_heat;admin_pa
> ss=Openst1" -f hello_world.yaml
> 
> Then I have added one more nova server resource with new name(server1),
> rest all the details are untouched.
> 
> I get the following when I use this new template without mentioning any of
> the parameter value.
> 
> heat --debug stack-update hello_world -f hello_world_modified.yaml
> 
> On debugging it throws the below exception.
> The resource was found
> athttp://localhost:8004/v1/7faee9dd37074d3e8896957dc4a52e22/stacks/hello_wo
> rld/85a0bc2c-1a20-45c4-a8a9-7be727db6a6d; you should be redirected
> automatically.
> DEBUG (session) RESP: [400] CaseInsensitiveDict({'date': 'Wed, 24 Sep 2014
> 10:08:08 GMT', 'content-length': '961', 'content-type': 'application/json;
> charset=UTF-8'})
> RESP BODY: {"explanation": "The server could not comply with the request
> since it is either malformed or otherwise incorrect.", "code": 400,
> "error": {"message": "The Parameter (admin_pass) was not provided.",
> "traceback": "Traceback (most recent call last):\n\n  File
> \"/opt/stack/heat/heat/engine/service.py\", line 63, in wrapped\n
> return func(self, ctx, *args, **kwargs)\n\n  File
> \"/opt/stack/heat/heat/engine/service.py\", line 576, in update_stack\n
> env, **common_params)\n\n  File \"/opt/stack/heat/heat/engine/parser.py\",
> line 109, in __init__\n    context=context)\n\n  File
> \"/opt/stack/heat/heat/engine/parameters.py\", line 403, in validate\n
> param.validate(validate_value, context)\n\n  File
> \"/opt/stack/heat/heat/engine/parameters.py\", line 215, in validate\n
> raise 
> exception.UserParameterMissing(key=self.name)\n\nUserParameterMissing: The
> Parameter (admin_pass) was not provided.\n", "type":
> "UserParameterMissing"}, "title": "Bad Request"}
> 
> When I mention all the parameters then it updates the stack properly
> 
> heat --debug stack-update hello_world -P
> "key_name=test_keypair;image=test_image_cirros;flavor=m1.test_heat;admin_pa
> ss=Openst1" -f hello_world_modified.yaml
> 
> Any reason why I can¹t reuse the existing parameters during the
> stack-update if I don¹t  want to specify them again?
> 
> -
> Dimitri
> 
> 
> 
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