[Maas-devel] HALP Migrations backporting

[Gavin Panella]

On 15 August 2014 01:23, Julian Edwards <julian.edwards at canonical.com> wrote:
> Dear all
>
> I need to backport a data migration 0099 to 1.6 from trunk, however 1.6
> is currently only on 0088.  All of these would need to get backported as
> well:
>
> 0089_create_nodegroupinterface_name.py
> 0090_initialise_nodegroupinterface_name.py
> 0091_add_boot_type_to_node.py
> 0092_populate_node_boot_type.py
> 0093_add_eventtype_and_event.py
> 0094_add_error_description.py
> 0095_add_event_description.py
> 0096_add_power_state_to_node.py
> 0097_add_largefile_model.py
> 0098_add_bootresource_models.py
>
> However, a quick look at these shows that 0090 needs a code change
> that's not in 1.6 (make_name_from_interface) so I can't just backport
> these en-masse.

Do you really need all of those? The only change the migration makes is:

        interfaces = orm['maasserver.NodeGroupInterface'].objects.all()
        for interface in interfaces:
            create_Network_from_NodeGroupInterface(interface)

Try creating a new data migration then plonking this code in, and see
what happens.

>
> Does anyone know if we can just backport the single data migration
> without South breaking?
>
> Failing that, I will have to do something in the packaging to do this
> migration manually :(
>
> Thanks
> J