OpenStack Heat

Stack with subnet update failed due the cidr overlaps with another

Bug #1553088 reported by huangtianhua
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
OpenStack Heat
In Progress
Medium
huangtianhua
OpenStack Heat next

Bug Description

1. create a stack with neutron subnet:
*************************************
heat_template_version: 2014-10-16
resources:
  subnet:
    type: OS::Neutron::Subnet
    properties:
      network_id: 3447dd80-14ef-4059-8ea6-35f4fd60ba26
      cidr: 102.0.0.0/24
    deletion_policy: Retain
*************************************

2. update the subnet with another cidr: 112.0.0.0/24, stack update successful

3. to update the subnet back to old cidr: 102.0.0.0/24, stack update failed, due the cidr overlaps with other subnet in network.

In step2, we replace the subnet with the new cidr, but the old subnet retain due the deletion_policy.
So we need to consider this user case to make sure the update success.

huangtianhua (huangtianhua)
Changed in heat:
assignee: nobody → huangtianhua (huangtianhua)
importance: Undecided → Medium
Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix proposed to heat (master)

Fix proposed to branch: master
Review: https://review.openstack.org/290311

Changed in heat:
status: New → In Progress
huangtianhua (huangtianhua)
Changed in heat:
milestone: none → mitaka-rc1
Revision history for this message
Anant Patil (ananta) wrote :

Is it ok for a user to have his/her delete-retained resource be deleted because it got update-replaced? I am ok with heat failing gracefully and complaining properly about the error instead of deleting something user never wanted?

Revision history for this message
Jay Dobies (jdob) wrote :

I was thinking the same thing as Anant. I don't like the idea of implicitly changing that flag without the user's input. I'd be curious to see the behavior if deletion_policy was changed during the first update and if that's the flow the user should take.

Sergey Kraynev (skraynev)
Changed in heat:
milestone: mitaka-rc1 → newton-1
Rabi Mishra (rabi)
Changed in heat:
milestone: newton-1 → newton-2
Thomas Herve (therve)
Changed in heat:
milestone: newton-2 → newton-3
Thomas Herve (therve)
Changed in heat:
milestone: newton-3 → next
Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Change abandoned on heat (master)

Change abandoned by Rico Lin (<email address hidden>) on branch: master
Review: https://review.openstack.org/290311
Reason: Hi, this patch stays untouched for few months, would like to abandon for now. Feel free to restore it if you still working on this. Thank you!

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