Bug 1428969 - Outputs aren't correctly validated
Summary: Outputs aren't correctly validated
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-heat
Version: 11.0 (Ocata)
Hardware: Unspecified
OS: Unspecified
Target Milestone: beta
: 11.0 (Ocata)
Assignee: Zane Bitter
QA Contact: Amit Ugol
Depends On: 1428968
TreeView+ depends on / blocked
Reported: 2017-03-03 17:44 UTC by Jaromir Coufal
Modified: 2017-05-17 20:05 UTC (History)
8 users (show)

Fixed In Version: openstack-heat-8.0.0-6.el7ost
Doc Type: If docs needed, set a value
Doc Text:
Clone Of: 1428968
Last Closed: 2017-05-17 20:05:06 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
OpenStack gerrit 441445 0 None None None 2017-03-09 15:48:03 UTC
Red Hat Product Errata RHEA-2017:1245 0 normal SHIPPED_LIVE Red Hat OpenStack Platform 11.0 Bug Fix and Enhancement Advisory 2017-05-17 23:01:50 UTC

Description Jaromir Coufal 2017-03-03 17:44:52 UTC
Cloning for OSP11.

+++ This bug was initially created as a clone of Bug #1428968 +++

Reference to upstream launchpad:

We've had bug(s) about this before IIRC, but it's still not working correctly, see reproducer below where an output references a wrong parameter - the stack goes CREATE_COMPLETE, but then resolving the outputs fails.

This is more of a problem than it seems at first glance, because although the stack-show error output is pretty clear, it's not reflected clearly at all when this happens in a nested template - some parent resource that references the nested stack output randomly fails and you have to manually inspect the nested stack to see the cause of the error - it'd be *much* clearer and easier to debug if the nested stack just failed.

If it's not possible to validate this during the validate stage due to dependencies on runtime data (I suspect this may be the case), we should special-case this for TemplateResource such that we resolve all attributes/outputs before declaring the parent resource COMPLETE.

[stack@instack openstack-tripleo-heat-templates]$ cat /tmp/reproducer.yaml
heat_template_version: 2016-04-08

    default: 0
    description: The number of workers for the sahara-api.
    type: number
    description: Role data for the Sahara API role.
        sahara::service::api::api_workers: {get_param: SaharaApiWorkers}

[stack@instack openstack-tripleo-heat-templates]$ heat stack-create r1 -f /tmp/reproducer.yaml
| 75d5a2bc-86e5-4551-8f88-4742d6a9f709 | r1 | CREATE_IN_PROGRESS | 2016-07-05T10:39:22 | None |

[stack@instack openstack-tripleo-heat-templates]$ heat stack-list
| 75d5a2bc-86e5-4551-8f88-4742d6a9f709 | r1 | CREATE_COMPLETE | 2016-07-05T10:39:22 | None |

[stack@instack openstack-tripleo-heat-templates]$ heat stack-show r1
| outputs | [ |
| | { |
| | "output_value": null, |
| | "output_error": "The Parameter (SaharaApiWorkers) was not provided.", |
| | "output_key": "role_data", |
| | "description": "Role data for the Sahara API role." |
| | }

Comment 1 Zane Bitter 2017-03-09 15:48:04 UTC
Partial fix is merged in master upstream and proposed for Ocata. It ensures the user gets an appropriate error message when the outputs are invalid.

Comment 2 Zane Bitter 2017-03-22 13:56:22 UTC
Patch merged to upstream stable/ocata.

Comment 4 errata-xmlrpc 2017-05-17 20:05:06 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.


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