On 24/03/16 04:29, Steven Hardy wrote:
On Thu, Mar 24, 2016 at 01:39:01AM -0400, Rabi Mishra wrote:
On Wed, Mar 23, 2016 at 05:25:57PM +0300, Sergey Kraynev wrote:
Hello,
It looks similar on issue, which was discussed here [1]
I suppose, that the root cause is incorrect using get_attr for your
case.
Probably you got "list" instead of "string".
F.e. if I do something similar:
outputs:
rg_1:
value: {get_attr: [rg_a, rg_a_public_ip]}
rg_2:
value: {get_attr: [rg_a, rg_a_public_ip, 0]}
rg_3:
value: {get_attr: [rg_a]}
rg_4:
value: {get_attr: [rg_a, resource.0.rg_a_public_ip]}
where rg_a is also resource group which uses custom template as
resource.
the custom template has output value rg_a_public_ip.
The output for it looks like [2]
So as you can see, that in first case (like it is used in your example),
get_attr returns list with one element.
rg_2 is also wrong, because it takes first symbol from sting with IP
address.
Shouldn't rg_2 and rg_4 be equivalent?
They are the same for template version 2013-05-23. However, they behave
differently
from the next version(2014-10-16) onward and return a list of characters. I
think
this is due to the fact that `get_attr` function mapping is changed from
2014-10-16.
Ok, I guess it's way too late to fix it, but it still sounds like a
backwards incompatible regression to me.
It is backwards incompatible, but it's not a regression. This is the
exact reason why we have versioned templates.
It's an intentional feature, done by the book with a template version
bump, which you +2'd at the time :)
https://bugs.launchpad.net/heat/+bug/1341048
https://git.openstack.org/cgit/openstack/heat/commit/?id=eca6faa83e13a43546f7533b52e0fd3071fd97d4
https://git.openstack.org/cgit/openstack/heat/commit/?id=b4903673cd24efd631df79d33cfe4bd07a4243d6
- ZB
__________________________________________________________________________
OpenStack Development Mailing List (not for usage questions)
Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
