[horizon] default create_volume setting can't be changed

Eugen Block eblock at nde.ag
Tue Aug 25 07:42:12 UTC 2020

Update: I found one (the right?) place to change the default to false:


//        create_volume_default: true,
         create_volume_default: false,

I've been struggling for years now with these dashboard settings, it  
started with


where I needed to remove the default disk identifier (hard-coded  
"vda") when we were still running with xen hypervisors to let nova  
change the disk name. Then this changed and it had to be one of these  
files, I can't remember which was first, I just know that after some  
months I had to apply my changes to the other file, too:



I'm not a developer but I must say, I don't really understand this  
setup and why it changes all the time. Of course I might be looking in  
the wrong places, it would be great if someone could point me to the  
right direction! I'm also willing to provide more information if  

> Other configs from this file work as expected, so that custom file  
> can't be the reason.

I might be wrong about that, too. I noticed that although I disabled  
the debug settings in  

DEBUG = False

I was still seeing debug messages. I had to turn them off in  
/srv/www/openstack-dashboard/openstack_dashboard/settings.py to be  
applied. So there might be other changes not applied from our custom  
config file.
I'd really appreciate it if anyone could comment on this.


Zitat von Eugen Block <eblock at nde.ag>:

> Hi *,
> we recently upgraded from Ocata to Train and I'm struggling with a  
> specific setting: I believe since Pike version the default for  
> "create_volume" changed to "true" when launching instances from  
> Horizon dashboard. I would like to change that to "false" and set it  
> in our custom  
> /srv/www/openstack-dashboard/openstack_dashboard/local/local_settings.d/_100_local_settings.py:
>     'config_drive': False,
>     'create_volume': False,
>     'hide_create_volume': False,
>     'disable_image': False,
>     'disable_instance_snapshot': False,
>     'disable_volume': False,
>     'disable_volume_snapshot': False,
>     'enable_scheduler_hints': True,
> }
> Other configs from this file work as expected, so that custom file  
> can't be the reason.
> After apache and memcached restart nothing changes, the default is  
> still "true". Can anyone shed some light, please? I haven't tried  
> other configs yet so I can't tell if more options are affected.
> Thanks!
> Eugen

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