Thanks Bob.

Can we have a lab with remote/Distributed ARM controller and compute nodes?



/Trinath
________________________________
From: Bob Monkman <[email protected]>
Sent: Wednesday, September 13, 2017 8:44:52 PM
To: Alexandru Avadanii; Srikanth Lingala; [email protected]; 
[email protected]
Cc: svc-armband; Shai Tsur; Gorja Gorja; Trinath Somanchi; Veera.reddy B
Subject: RE: [Pharos] Pharos lab for ARM band

NXP team,

Alex is correct in that we do not yet have a plan of record for heterogeneous 
pods. But this has been discussed within Arm and we see it as a useful use case 
where controllers and compute nodes can be different architectures. We will 
seek to plan for this in 2018. I will reach out to your team regarding your 
immediate needs.

Regards,
Bob

Robert (Bob) Monkman
Networking Software Strategy & Ecosystem Programs
ARM
150 Rose Orchard Way
San Jose, Ca 95134
M: +1.510.676.5490
Skype: robert.monkman

From: Alexandru Avadanii [mailto:[email protected]]
Sent: Friday, September 8, 2017 9:23 AM
To: Srikanth Lingala <[email protected]>; [email protected]; 
[email protected]
Cc: svc-armband <[email protected]>; Bob Monkman <[email protected]>; Shai 
Tsur <[email protected]>; Gorja Gorja <[email protected]>; Trinath Somanchi 
<[email protected]>; Veera.reddy B <[email protected]>
Subject: RE: [Pharos] Pharos lab for ARM band

Hi,
We don’t have such patches, nor do we plan to support old Fuel any more.
We actually don’t intend to mix architectures for the new Fuel either, at least 
not in the near future.

If you want to support this use-case, you will have to implement it yourself.
I do think the new Fuel is friendlier to this scenario, but again, we never 
looked into it.

BR,
Alex


From: Srikanth Lingala [mailto:[email protected]]
Sent: Friday, September 08, 2017 4:21 PM
To: Alexandru Avadanii; 
[email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>
Cc: svc-armband; Bob Monkman; Shai Tsur; Gorja Gorja; Trinath Somanchi; 
Veera.reddy B
Subject: RE: [Pharos] Pharos lab for ARM band

OK…So, If I apply some patches to Fuel and rebuild Fuel ISO, can I deploy with 
mixed (x86 and aarch64) targets in Pharos POD?
If so, can you please point me to those patches?

Regards,
Srikanth.

From: Alexandru Avadanii [mailto:[email protected]]
Sent: Friday, September 08, 2017 5:54 PM
To: Srikanth Lingala 
<[email protected]<mailto:[email protected]>>; 
[email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>
Cc: svc-armband <[email protected]<mailto:[email protected]>>; Bob 
Monkman <[email protected]<mailto:[email protected]>>; Shai Tsur 
<[email protected]<mailto:[email protected]>>; Gorja Gorja 
<[email protected]<mailto:[email protected]>>; Trinath Somanchi 
<[email protected]<mailto:[email protected]>>; Veera.reddy B 
<[email protected]<mailto:[email protected]>>
Subject: RE: [Pharos] Pharos lab for ARM band

Hi,
That is correct, everything is now AArch64 in our PODs.

BR,
Alex


From: Srikanth Lingala [mailto:[email protected]]
Sent: Friday, September 08, 2017 11:48 AM
To: Alexandru Avadanii; 
[email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>
Cc: svc-armband; Bob Monkman; Shai Tsur; Gorja Gorja; Trinath Somanchi; 
Veera.reddy B
Subject: RE: [Pharos] Pharos lab for ARM band

Hi Alex,
Thanks for the details.
I viewed the following link for reference:
https://wiki.opnfv.org/display/pharos/Enea+Hosting<https://url10.mailanyone.net/v1/?m=1dqExj-0005uE-41&i=57e1b682&c=2_90BZQ1-RysgNt1AmHMojKH2LHu4JvrSPemJS6YkprgFmG8q-jJlEMYA4CZikrc8-R03obAumDs803BItktKdmDIr3C55G2KVSIp_QGTTHWTA1S4Vmt7WW_Wt4-85FzF9FhIOGOnJhGAYMKmfMkJQcvEi-WMB2SRG5EgU0mktznhy_1bVqcjJdS7vnkfeqilYivXeMCcCUFvI8dqUMVXEnwBEhNp13pdCNYfv7j0SdWJUxpJyWjFSnUzj-BIW8GPXN4uCWspaUrKqm12rIBwA>

So, in the current ENEA Pharos lab, you are using ARM based machines as OS 
Controller nodes, Compute nodes and even Jump Host node. Not using any hybrid 
POD (with combination of x86 and ARM machines as nodes). Right?

Regards,
Srikanth.

From: Alexandru Avadanii [mailto:[email protected]]
Sent: Friday, September 08, 2017 12:49 AM
To: Srikanth Lingala 
<[email protected]<mailto:[email protected]>>; 
[email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>
Cc: svc-armband <[email protected]<mailto:[email protected]>>; Bob 
Monkman <[email protected]<mailto:[email protected]>>; Shai Tsur 
<[email protected]<mailto:[email protected]>>
Subject: RE: [Pharos] Pharos lab for ARM band

Hi, Srikanth,
I’m glad to hear about new AArch64 hardware joining OPNFV.

First, note that Pharos specs require 5 nodes, which depending on the scenario 
can be used as 3 controllers + 2 computes, or 1 controller + computes.
This makes it hard to mix x86 and ARM targets in a Pharos POD. Therefore, this 
is not supported by OPNFV Danube 3.0 Fuel – it is not impossible, but it is out 
of our current scope.
To add some complexity to that, we have the additional jump server host, which 
used to be x86 up to and including the Danube release cycle; starting with the 
E release, Armband only support all-AArch64 PODs, including the jump host.

Also note that the old Fuel (used up to and including Danube) was replaced by 
the new Fuel, based on Mirantis Cloud Platform (MCP), which on its own means a 
lot of changes in the way we build and provision the OS images (bootstrap and 
final image) on the AArch64 nodes.
Starting with the E release, there is no more bootstrap building, all images 
(Ubuntu Xenial) are fetched from official Ubuntu Cloud Archive (UCA) repos and 
used as-is.

As for old bootstrap building, x86 instructions still apply [1], with only one 
extra arg required (--target_arch=arm64).

To summarize, I recommend looking into the current Armband/Fuel codebase 
(master branch) and prepare for using MCP-based Fuel instead of the old Danube 
codebase.
To add a lab in OPNFV, you will need 6 x AArch64 nodes (5 for the cluster and 
one for the jump host).

BR,
Alex

[1] 
https://docs.openstack.org/fuel-docs/latest/userdocs/fuel-install-guide/bootstrap/bootstrap_troubleshoot.html<https://url10.mailanyone.net/v1/?m=1dqExj-0005uE-41&i=57e1b682&c=QqYvZQC5560IPDtsPgdMeQQDvqEpjhyR0UZGIV7tunq-se0YCPSP6xxlDi9wG8__VazhOirYCoOetNpYw1zYeVUU37jndntzaFMWxDK0HxyAEOvTwQl303qQJvW6LiI8hQo73oBlWlaey0VdRgzt7zED7ggGAfYlAsO5lMGp6UZ5CsDVKOIeaGKcbe1PnBDPosO4fGpAlbKl6cmGI1CprYwKNm_6AYpz6bmcm_MH4EKvW1XJaTuuS38IKy1jzAmK8WOxuBjAGH_cWNfuJ3wQEUFMbstHAMFo2n_rquR2YBeNiJrobkN_nfbhospqyjqXdMTXG6-Lr2oVJhzFw-DnLg>


From: 
[email protected]<mailto:[email protected]>
 [mailto:[email protected]] On Behalf Of Srikanth 
Lingala
Sent: Thursday, September 07, 2017 8:35 PM
To: [email protected]<mailto:[email protected]>; 
[email protected]<mailto:[email protected]>
Subject: [opnfv-tech-discuss] [Pharos] Pharos lab for ARM band

Hi,
We want to setup Pharos lab for ARM band machines. For that, I am using OPNFV 
Danube 3.0 release (Fuel ISO).
Is it possible to deploy an OpenStack setup with x86 machine as OS Controller 
and ARM machine as OS Compute node?
And also, can anyone give me some reference links to build a bootstrap image 
(for Fuel deployment) for baremetal ARM machines?

Regards,
Srikanth.
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