[lxc-users] why does ssh + lxc hang? (used to work)

[Tomasz Chmielewski]

Yes, these parameters passed to lxc command don't really help.

"ssh -t" makes "lxc exec" return after executing the command.

Though I'd be interested to understand why it suddenly started to 
happen; have a number of scripts which broke because of this change.


Tomasz Chmielewski
https://lxadm.com


On 2019-02-25 00:39, Kees Bos wrote:
> Did you try '-T, --force-noninteractive' ?
> (Disable pseudo-terminal allocation)
> 
> i.e.
> laptop$ ssh root at host "/snap/bin/lxc exec container -T -- date"
> 
> 
> 
> On Sun, 2019-02-24 at 21:33 +0900, Tomasz Chmielewski wrote:
>> This works (executed on a host):
>> 
>> host# lxc exec container -- date
>> Sun Feb 24 12:25:21 UTC 2019
>> host#
>> 
>> This however hangs and doesn't return (executed from a remote
>> system,
>> i.e. your laptop or a different server):
>> 
>> laptop$ ssh root at host "export PATH=$PATH:/snap/bin ; lxc exec
>> container
>> -- date"
>> Sun Feb 24 12:28:04 UTC 2019
>> (...command does not return...)
>> 
>> Or a direct path to lxc binary - also hangs:
>> 
>> laptop$ ssh root at host "/snap/bin/lxc exec container -- date"
>> Sun Feb 24 12:29:54 UTC 2019
>> (...command does not return...)
>> 
>> 
>> Of course a simple "date" execution via ssh on the host does not
>> hang:
>> 
>> laptop$ ssh root at host date
>> Sun Feb 24 12:31:33 UTC 2019
>> laptop$
>> 
>> 
>> Why do commands executed via ssh and lxc hang? It used to work some
>> 1-2
>> months ago, not sure with which lxd version it regressed like this.
>> 
>> 
>> Tomasz Chmielewski
>> _______________________________________________
>> lxc-users mailing list
>> lxc-users at lists.linuxcontainers.org
>> http://lists.linuxcontainers.org/listinfo/lxc-users
> 
> 
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