RandomString pre-create value (None) causes validation failures

[Drago]

When trying to create a stack, this template will fail validation:

heat_template_version: 2015-04-30
resources:
  random:
    type: OS::Heat::RandomString

  random2:
    type: OS::Heat::RandomString
    properties:
      salt: { digest: ['md5', { get_attr: [random, value] }] }
      #salt: { digest: ['md5', { get_resource: random }] }

However, when get_attr is exchanged for get_resource (commented line in above template), the stack will create fine.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/217633

[Rabi Mishra (rabi)]

I think this is a bigger problem than something specific to random_string. As get_attr returns None. Properties using them with some function, fail the validation.

Probably, this is is similar to bug https://bugs.launchpad.net/bugs/1489058.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Zane Bitter (<email address hidden>) on branch: master
Review: https://review.openstack.org/217633