Hi All,
We have the following design to resolve user hostnames solution in xCAT,
may realize it in future, could you check if the following design can
resolve your user hostnames problem?
Welcome any comments from you.
Feature:
Add one new column into `hosts` table, for example, named `customhostname`.
User can add their expected user hostnames into this column for nodes. If
set the value of this column, xCAT will configure final system hostname the
same with this value.
Take the following example to explain the design.
node name is computenode1 in xCAT DB, user wants its user hostname is
publichostname after the node is provisioned.
In xCAT MN, hosts table as:
#tabdump hosts
#node,ip,hostnames,customhostname,otherinterfaces,comments,disable
"computenode1",,,"publichostname",,,
After the computenode1 is provisioned, using xdsh to check the hostname
of the node, it can get publichostname
#xdsh computenode1 hostname
publichostname
Best Regards
--------------------------------------------------
Yuan Bai (白媛)
CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: by...@cn.ibm.com
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian
District,
Beijing P.R.China 100193
IBM环宇大厦
北京市海淀区东北旺西路8号，中关村软件园28号楼
邮编:100193
From: Christian Caruthers <ccaruth...@lenovo.com>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Date: 08/22/2017 09:15 AM
Subject: Re: [xcat-user] Setting user hostnames
I agree, I don't think it is supported. I think I can make it work using
the solution I outlined, but that doesn't appear to be working according to
the documentation.
Looking for verification of what I'm trying to do, confirmation that the
envlist files are still parsed (it appears they are), and/or suggestions.
Regards,
Christian Caruthers
Lenovo Professional Services
Mobile: 757-289-9872
Sent from my mobile device
On Mon, Aug 21, 2017 at 5:58 PM -0500, "Kevin Keane" <kke...@sandiego.edu>
wrote:
The way I read it, this was a design suggestion for a future version of
xCAT; it is described as a low-priority item. It may not yet be
implemented.
On Mon, Aug 21, 2017 at 3:42 PM, Christian Caruthers <
ccaruth...@lenovo.com> wrote:
Using this as a reference:
https://sourceforge.net/p/xcat/wiki/Exporting_more_table_attributes_to_nodes/
Currently, we have n1…n10 configured in xCAT. These are internal
hostnames. All of these hosts have external "public" IP addresses, and
the desire is to have the hosname match the public name.
Short of setting up DNS for the public IPs, which I really don't want to
do since there will be an external DNS server w/ that info, I thought I
could use an unused table.field (prodkey.key) for a <profile>.envlist
file. So I have:
ls -la /install/custom/install/rh/x86_84/chum.envlist
prodkey,key,,NEWHOST
(NOTE: I have also tried this in /install/custom/install/rh/)
lsdef n1 | egrep 'profile|post|productkey'
postbootscripts=<snip>,chumhostname
productkey=rabidgator1.floridaman.arrr.edu
profile=chum
cat /install/postscripts/chumhostname
hostnamectl set-hostname $NEWHOST
When I try this with updatenode, it doesn't appear to be grabbing the
info from that envlist file. Is this feature still in use? If not,
what's a recommended way to set a different hostname?
Regards,
Christian Caruthers
Lenovo Professional Services
Mobile: 757-289-9872
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