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Hi Tony,

Does your Magnum support this config
https://github.com/openstack/magnum/blob/master/magnum/conf/cinder.py#L47
can you try to change it from 0 to 10? 10 means the root disk volume
size for the k8s node. By default the 0 means the node will be based on
image instead of volume.


On 14/09/20 9:37 pm, Tony Pearce wrote:
> Hi Feilong, sure. The flavour I used has 2 CPU and 2GB memory. All
> other values either unset or 0mb. 
> I also used the same fedora 27 image that is being used for the
> kubernetes cluster. 
>
> Thank you
> Tony
>
> On Mon, 14 Sep 2020, 17:20 feilong, <feilong at catalyst.net.nz
> <mailto:feilong at catalyst.net.nz>> wrote:
>
>     Hi Tony,
>
>     Could you please let me know  your flavor details? I would like to
>     test it in my devstack environment (based on LVM). Thanks.
>
>
>     On 14/09/20 8:27 pm, Tony Pearce wrote:
>>     Hi feilong, hope you are keeping well. Thank you for the info!  
>>
>>     For issue 1. Maybe this should be with the kayobe/kolla-ansible
>>     team. Thanks for the insight :) 
>>
>>     For the 2nd one, I was able to run the HOT template in your link.
>>     There's no issues at all running that multiple times concurrently
>>     while using the 0MB disk flavour. I tried four times with the
>>     last three executing one after the other so that they ran
>>     parallelly.  All were successful and completed and did not
>>     complain about the 0MB disk issue. 
>>
>>     Does this conclude that the error and create-failed issue relates
>>     to Magnum or could you suggest other steps to test on my side? 
>>
>>     Best regards,
>>
>>     Tony Pearce
>>
>>
>>
>>
>>     On Thu, 10 Sep 2020 at 16:01, feilong <feilong at catalyst.net.nz
>>     <mailto:feilong at catalyst.net.nz>> wrote:
>>
>>         Hi Tony,
>>
>>         Sorry for the late response for your thread.
>>
>>         For you HTTPS issue, we (Catalyst Cloud) are using Magnum
>>         with HTTPS and it works.
>>
>>         For the 2nd issue, I think we were misunderstanding the nodes
>>         disk capacity. I was assuming you're talking about the k8s
>>         nodes, but seems you're talking about the physical compute
>>         host. I still don't think it's a Magnum issue because a k8s
>>         master/worker nodes are just normal Nova instances and
>>         managed by Heat. So I would suggest you use a simple HOT to
>>         test it, you can use this
>>         https://gist.github.com/openstacker/26e31c9715d52cc502397b65d3cebab6
>>
>>         Most of the cloud providers or organizations who have adopted
>>         Magnum are using Ceph as far as I know, just FYI.
>>
>>
>>         On 10/09/20 4:35 pm, Tony Pearce wrote:
>>>         Hi all, hope you are all keeping safe and well. I am looking
>>>         for information on the following two issues that I have
>>>         which surrounds Magnum project:
>>>
>>>         1. Magnum does not support Openstack API with HTTPS
>>>         2. Magnum forces compute nodes to consume disk capacity for
>>>         instance data
>>>
>>>         My environment: Openstack Train deployed using Kayobe
>>>         (Kolla-ansible). 
>>>
>>>         With regards to the HTTPS issue, Magnum stops working after
>>>         enabling HTTPS because the certificate / CA certificate is
>>>         not trusted by Magnum. The certificate which I am using is
>>>         one that was purchased from GoDaddy and is trusted in web
>>>         browsers (and is valid), just not trusted by the Magnum
>>>         component. 
>>>
>>>         Regarding compute node disk consumption issue - I'm at a
>>>         loss with regards to this and so I'm looking for more
>>>         information about why this is being done and is there any
>>>         way that I could avoid it?  I have storage provided by a
>>>         Cinder integration and so the consumption of compute node
>>>         disk for instance data I need to avoid. 
>>>
>>>         Any information the community could provide to me with
>>>         regards to the above would be much appreciated. I would very
>>>         much like to use the Magnum project in this deployment for
>>>         Kubernetes deployment within projects. 
>>>
>>>         Thanks in advance, 
>>>
>>>         Regards,
>>>
>>>         Tony
>>
>>         -- 
>>         Cheers & Best regards,
>>         Feilong Wang (王飞龙)
>>         ------------------------------------------------------
>>         Senior Cloud Software Engineer
>>         Tel: +64-48032246
>>         Email: flwang at catalyst.net.nz <mailto:flwang at catalyst.net.nz>
>>         Catalyst IT Limited
>>         Level 6, Catalyst House, 150 Willis Street, Wellington
>>         ------------------------------------------------------ 
>>
>     -- 
>     Cheers & Best regards,
>     Feilong Wang (王飞龙)
>     ------------------------------------------------------
>     Senior Cloud Software Engineer
>     Tel: +64-48032246
>     Email: flwang at catalyst.net.nz <mailto:flwang at catalyst.net.nz>
>     Catalyst IT Limited
>     Level 6, Catalyst House, 150 Willis Street, Wellington
>     ------------------------------------------------------ 
>
-- 
Cheers & Best regards,
Feilong Wang (王飞龙)
------------------------------------------------------
Senior Cloud Software Engineer
Tel: +64-48032246
Email: flwang at catalyst.net.nz
Catalyst IT Limited
Level 6, Catalyst House, 150 Willis Street, Wellington
------------------------------------------------------ 

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