* RFC: sysctl fixes
@ 2015-03-04 13:18 Marian Marinov
2015-03-04 15:48 ` Stephan Mueller
[not found] ` <54F7061B.80002-NV7Lj0SOnH0@public.gmane.org>
0 siblings, 2 replies; 4+ messages in thread
From: Marian Marinov @ 2015-03-04 13:18 UTC (permalink / raw)
To: linux-kernel
Hello,
we are running hundreds of containers and we got some valid requests from customers that want to be able to change their
container's hostname using the sysctl command.
The current implementation does not allow each UTS namespace to change its own hostname.
So we sponsored the development of fix for this issue.
Please checkout the changes here:
https://github.com/1HLtd/linux/compare/b24e2bdde4af656bb0679a101265ebb8f8735d3c...sysctl-hostname-fixes
If this fix is acceptable I'll send the patches as it is common. But first I want to know if you think this is the way
to go.
Thank you,
Marian
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: RFC: sysctl fixes
2015-03-04 13:18 RFC: sysctl fixes Marian Marinov
@ 2015-03-04 15:48 ` Stephan Mueller
2015-03-04 15:53 ` Marian Marinov
[not found] ` <54F7061B.80002-NV7Lj0SOnH0@public.gmane.org>
1 sibling, 1 reply; 4+ messages in thread
From: Stephan Mueller @ 2015-03-04 15:48 UTC (permalink / raw)
To: Marian Marinov; +Cc: linux-kernel
Am Mittwoch, 4. März 2015, 15:18:19 schrieb Marian Marinov:
Hi Marian,
>Hello,
>we are running hundreds of containers and we got some valid requests
>from customers that want to be able to change their container's
>hostname using the sysctl command.
>
>The current implementation does not allow each UTS namespace to change
>its own hostname.
>
>So we sponsored the development of fix for this issue.
>
>Please checkout the changes here:
>
>https://github.com/1HLtd/linux/compare/b24e2bdde4af656bb0679a101265ebb
>8f8735d3c...sysctl-hostname-fixes
>
>If this fix is acceptable I'll send the patches as it is common. But
>first I want to know if you think this is the way to go.
The description in http://lwn.net/Articles/531381/ does not work?
>
>Thank you,
>Marian
>
>--
>To unsubscribe from this list: send the line "unsubscribe linux-kernel"
>in the body of a message to majordomo@vger.kernel.org
>More majordomo info at http://vger.kernel.org/majordomo-info.html
>Please read the FAQ at http://www.tux.org/lkml/
Ciao
Stephan
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: RFC: sysctl fixes
2015-03-04 15:48 ` Stephan Mueller
@ 2015-03-04 15:53 ` Marian Marinov
0 siblings, 0 replies; 4+ messages in thread
From: Marian Marinov @ 2015-03-04 15:53 UTC (permalink / raw)
To: Stephan Mueller; +Cc: linux-kernel
On 03/04/2015 05:48 PM, Stephan Mueller wrote:
> Am Mittwoch, 4. März 2015, 15:18:19 schrieb Marian Marinov:
>
> Hi Marian,
>
>> Hello,
>> we are running hundreds of containers and we got some valid requests
> >from customers that want to be able to change their container's
>> hostname using the sysctl command.
>>
>> The current implementation does not allow each UTS namespace to change
>> its own hostname.
>>
>> So we sponsored the development of fix for this issue.
>>
>> Please checkout the changes here:
>>
>> https://github.com/1HLtd/linux/compare/b24e2bdde4af656bb0679a101265ebb
>> 8f8735d3c...sysctl-hostname-fixes
>>
>> If this fix is acceptable I'll send the patches as it is common. But
>> first I want to know if you think this is the way to go.
> The description in http://lwn.net/Articles/531381/ does not work?
Stephan, the users can change the hostname of the container using the hostname command. I can also change their hostname
when I'm creating the containers.
However the customers need to be able to change the hostname of the machine using valid system command:
sysctl kernel.hostname=newhost
sysctl kernel.domainname=newdomain
Both of these commands try to talk to the kernel via the /proc filesystem. This is why we propose these fixes.
Without them, only the root on the host node can do this.
Correct me, if I'm wrong.
Marian
>> Thank you,
>> Marian
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-kernel"
>> in the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>> Please read the FAQ at http://www.tux.org/lkml/
>
> Ciao
> Stephan
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* RFC: sysctl fixes
[not found] ` <54F7061B.80002-NV7Lj0SOnH0@public.gmane.org>
@ 2015-03-05 14:43 ` Marian Marinov
0 siblings, 0 replies; 4+ messages in thread
From: Marian Marinov @ 2015-03-05 14:43 UTC (permalink / raw)
To: cgroups-u79uwXL29TY76Z2rM5mHXA
Hello,
we are running hundreds of containers and we got some valid requests from customers that want to be able to change their
container's hostname using the sysctl command.
The current implementation does not allow each UTS namespace to change its own hostname.
So we sponsored the development of fix for this issue.
Please checkout the changes here:
https://github.com/1HLtd/linux/compare/b24e2bdde4af656bb0679a101265ebb8f8735d3c...sysctl-hostname-fixes
If this fix is acceptable I'll send the patches as it is common. But first I want to know if you think this is the way
to go.
Thank you,
Marian
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-03-05 14:43 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-03-04 13:18 RFC: sysctl fixes Marian Marinov
2015-03-04 15:48 ` Stephan Mueller
2015-03-04 15:53 ` Marian Marinov
[not found] ` <54F7061B.80002-NV7Lj0SOnH0@public.gmane.org>
2015-03-05 14:43 ` Marian Marinov
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