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Posted to dev@cloudstack.apache.org by Pierre-Luc Dion <pd...@apache.org> on 2020/08/08 14:36:02 UTC
[PROPOSAL] boot from network template on XenServer
Hi guys, it's been a while!
I'd like to know what would be the path to follow within the community to
submit a feature into cloudstack, but also to review our proposal on
offering a template that boots from the network.
Basic idea, is that there is some workload, specially for XenDesktop where
desktop images are hosted on a PVS server, to ease support of that workload
in cloudstack, it kind of make sense that a Instance would boot from the
network and load is root volume image from the PVS server. So what we
recently tried in a VPC model, is to add a configuration at the VPC level
to define the IP address of a TFTP server so the DHCP of the VR push the
next_server ip defined in the VPC config, then we create a template where
the URL is to boot file path on the tftp server that can reside outside of
a vpc. At the VM creation using this template, the boot order of the
instance on XenServer is to boot from the network and the root volume
created is an empty volume that can be used as ephemeral or storage for
caching.
Cheers,
Re: [PROPOSAL] boot from network template on XenServer
Posted by Rohit Yadav <ro...@shapeblue.com>.
Hi PL,
Thanks for explaining - you're correct the direct download for templates feature is to bypass secondary storage.
Regards.
________________________________
From: Pierre-Luc Dion <pd...@apache.org>
Sent: Monday, August 10, 2020 23:59
To: dev@cloudstack.apache.org <de...@cloudstack.apache.org>
Cc: Serge Nassar <sn...@cloud.ca>; Siddhartha Kattoju <sk...@cloud.ca>
Subject: Re: [PROPOSAL] boot from network template on XenServer
Hi Rohit,
It is actually not quite the same. the boot from network we are working on
is for a use case where the boot volume is on a streaming server basically,
so we need instance to boot from network to load the OS from that streaming
server basically. The template that would be created in CloudStack would
just refer to which FILENAME on the TFTP server would be used to boot. the
TFTP server IP would be defined at the VPC level.
the feature you describe for KVM is basically a way to register a regular
full template but send it directly to the PrimaryStorage instead of having
it in the Secondary Storage first, correct ?
Cheers,
On Sun, Aug 9, 2020 at 11:33 AM Rohit Yadav <ro...@shapeblue.com>
wrote:
> Hi PL,
>
> Good to hear from you!
>
> If you've a use-case where templates are created/hosted separately and may
> change often, could your use-case work by extending the direct-download
> feature for XenServer?
> Here are some links for the KVM support:
>
>
> http://docs.cloudstack.apache.org/en/latest/adminguide/templates.html#bypassing-secondary-storage-for-kvm-templates
>
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/Bypass+Secondary+Storage+%28Direct+Download%29+on+KVM
>
> https://www.shapeblue.com/cloudstack-feature-first-look-direct-download-agnostic-of-the-storage-provider/
>
>
>
> Regards.
>
> ________________________________
> From: Pierre-Luc Dion <pd...@apache.org>
> Sent: Saturday, August 8, 2020 20:06
> To: dev@cloudstack.apache.org <de...@cloudstack.apache.org>; Serge Nassar <
> snassar@cloud.ca>; Siddhartha Kattoju <sk...@cloud.ca>
> Subject: [PROPOSAL] boot from network template on XenServer
>
> Hi guys, it's been a while!
>
> I'd like to know what would be the path to follow within the community to
> submit a feature into cloudstack, but also to review our proposal on
> offering a template that boots from the network.
>
> Basic idea, is that there is some workload, specially for XenDesktop where
> desktop images are hosted on a PVS server, to ease support of that workload
> in cloudstack, it kind of make sense that a Instance would boot from the
> network and load is root volume image from the PVS server. So what we
> recently tried in a VPC model, is to add a configuration at the VPC level
> to define the IP address of a TFTP server so the DHCP of the VR push the
> next_server ip defined in the VPC config, then we create a template where
> the URL is to boot file path on the tftp server that can reside outside of
> a vpc. At the VM creation using this template, the boot order of the
> instance on XenServer is to boot from the network and the root volume
> created is an empty volume that can be used as ephemeral or storage for
> caching.
>
> Cheers,
>
> rohit.yadav@shapeblue.com
> www.shapeblue.com<http://www.shapeblue.com>
> 3 London Bridge Street, 3rd floor, News Building, London SE1 9SGUK
> @shapeblue
>
>
>
>
rohit.yadav@shapeblue.com
www.shapeblue.com
3 London Bridge Street, 3rd floor, News Building, London SE1 9SGUK
@shapeblue
Re: [PROPOSAL] boot from network template on XenServer
Posted by Pierre-Luc Dion <pd...@apache.org>.
Hi Rohit,
It is actually not quite the same. the boot from network we are working on
is for a use case where the boot volume is on a streaming server basically,
so we need instance to boot from network to load the OS from that streaming
server basically. The template that would be created in CloudStack would
just refer to which FILENAME on the TFTP server would be used to boot. the
TFTP server IP would be defined at the VPC level.
the feature you describe for KVM is basically a way to register a regular
full template but send it directly to the PrimaryStorage instead of having
it in the Secondary Storage first, correct ?
Cheers,
On Sun, Aug 9, 2020 at 11:33 AM Rohit Yadav <ro...@shapeblue.com>
wrote:
> Hi PL,
>
> Good to hear from you!
>
> If you've a use-case where templates are created/hosted separately and may
> change often, could your use-case work by extending the direct-download
> feature for XenServer?
> Here are some links for the KVM support:
>
>
> http://docs.cloudstack.apache.org/en/latest/adminguide/templates.html#bypassing-secondary-storage-for-kvm-templates
>
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/Bypass+Secondary+Storage+%28Direct+Download%29+on+KVM
>
> https://www.shapeblue.com/cloudstack-feature-first-look-direct-download-agnostic-of-the-storage-provider/
>
>
>
> Regards.
>
> ________________________________
> From: Pierre-Luc Dion <pd...@apache.org>
> Sent: Saturday, August 8, 2020 20:06
> To: dev@cloudstack.apache.org <de...@cloudstack.apache.org>; Serge Nassar <
> snassar@cloud.ca>; Siddhartha Kattoju <sk...@cloud.ca>
> Subject: [PROPOSAL] boot from network template on XenServer
>
> Hi guys, it's been a while!
>
> I'd like to know what would be the path to follow within the community to
> submit a feature into cloudstack, but also to review our proposal on
> offering a template that boots from the network.
>
> Basic idea, is that there is some workload, specially for XenDesktop where
> desktop images are hosted on a PVS server, to ease support of that workload
> in cloudstack, it kind of make sense that a Instance would boot from the
> network and load is root volume image from the PVS server. So what we
> recently tried in a VPC model, is to add a configuration at the VPC level
> to define the IP address of a TFTP server so the DHCP of the VR push the
> next_server ip defined in the VPC config, then we create a template where
> the URL is to boot file path on the tftp server that can reside outside of
> a vpc. At the VM creation using this template, the boot order of the
> instance on XenServer is to boot from the network and the root volume
> created is an empty volume that can be used as ephemeral or storage for
> caching.
>
> Cheers,
>
> rohit.yadav@shapeblue.com
> www.shapeblue.com
> 3 London Bridge Street, 3rd floor, News Building, London SE1 9SGUK
> @shapeblue
>
>
>
>
Re: [PROPOSAL] boot from network template on XenServer
Posted by Rohit Yadav <ro...@shapeblue.com>.
Hi PL,
Good to hear from you!
If you've a use-case where templates are created/hosted separately and may change often, could your use-case work by extending the direct-download feature for XenServer?
Here are some links for the KVM support:
http://docs.cloudstack.apache.org/en/latest/adminguide/templates.html#bypassing-secondary-storage-for-kvm-templates
https://cwiki.apache.org/confluence/display/CLOUDSTACK/Bypass+Secondary+Storage+%28Direct+Download%29+on+KVM
https://www.shapeblue.com/cloudstack-feature-first-look-direct-download-agnostic-of-the-storage-provider/
Regards.
________________________________
From: Pierre-Luc Dion <pd...@apache.org>
Sent: Saturday, August 8, 2020 20:06
To: dev@cloudstack.apache.org <de...@cloudstack.apache.org>; Serge Nassar <sn...@cloud.ca>; Siddhartha Kattoju <sk...@cloud.ca>
Subject: [PROPOSAL] boot from network template on XenServer
Hi guys, it's been a while!
I'd like to know what would be the path to follow within the community to
submit a feature into cloudstack, but also to review our proposal on
offering a template that boots from the network.
Basic idea, is that there is some workload, specially for XenDesktop where
desktop images are hosted on a PVS server, to ease support of that workload
in cloudstack, it kind of make sense that a Instance would boot from the
network and load is root volume image from the PVS server. So what we
recently tried in a VPC model, is to add a configuration at the VPC level
to define the IP address of a TFTP server so the DHCP of the VR push the
next_server ip defined in the VPC config, then we create a template where
the URL is to boot file path on the tftp server that can reside outside of
a vpc. At the VM creation using this template, the boot order of the
instance on XenServer is to boot from the network and the root volume
created is an empty volume that can be used as ephemeral or storage for
caching.
Cheers,
rohit.yadav@shapeblue.com
www.shapeblue.com
3 London Bridge Street, 3rd floor, News Building, London SE1 9SGUK
@shapeblue