[lxc-users] How to apply commands in howtos - macvlan and disk passthrough

[Pavol Cupka]

some of your questions are answered here
https://wiki.gentoo.org/wiki/LXD#Configure_subuid.2Fsubgid

answering to the list is fine

On Wed, Dec 21, 2016 at 1:34 PM, John Gubert <john.gubert at web.de> wrote:

> Hi Tycho,
>
> thank you for your fast response.
>
> My id on the host is indeed 1000. I read your blog article and then had
> a look at /etc/subuid:
>
> before:
> "me at host:~$ cat /etc/subuid
> lxd:100000:65536
> root:100000:65536
> me:165536:65536"
>
> after:
> "me at host:~$ cat /etc/subuid
> lxd:100000:65536
> root:100000:65536
> me:165536:65536
> root:1000:1"
>
> root seems to be already set up, maybe this is due to lxd being
> installed on ubuntu 16.04? It would be really helpful if you could
> explain to me what the mapping defined in this file really does. Does it
> make a difference if I add your line, or use the one already there? How
> does this file use the numbers (100000 and 65536)? Does 1000:1 tell
> ubuntu to map the id 1 to 1, if so, what does 100000:65536 mean? Add
> 65536 to the 100000? If there is a user called "me" in the conatainer,
> does a line "me:1000:1" work as well?
>
> I appreciate any help.
>
> with kind regards,
> John
>
> P.S.:
> I answered to the mailing list, is this the right way to do it, or
> should I answer to you directly?
>
>
>
> Am 20.12.2016 um 22:52 schrieb Tycho Andersen:
>
>> Hi John,
>>
>> On Tue, Dec 20, 2016 at 10:39:07PM +0100, john.gubert at web.de wrote:
>>
>>>     Hello,
>>>          I have a directory on my host system and want to create several
>>> containers
>>>     with the same users inside. I would like to pass the directory
>>> through to
>>>     each container and allow the users to write and read on it. The
>>> network
>>>     connection should be done using macvlan.
>>>     The howtos I have read so far show how to set up lxd, which works
>>> very
>>>     well on my 16.04 host. Starting a container works out of the box as
>>>     unpriviliged user as well.
>>>          My questions:
>>>     Is it even possible to share one directory on the host with several
>>>     container?
>>>     All the howtos I could find mention some commands, that need to be
>>>     applied, but they do not tell me about the commands I need to type
>>> in to
>>>     make it work:
>>>
>>>     "That means you can create a container with the following
>>> configuration:
>>>
>>>     lxc.id_map = u 0 100000 65536
>>>
>>>   lxc.id_map = g 0 100000 65536"
>>>
>>>     There is a big list of possible options on github, but where does it
>>> tell
>>>     how to apply them?
>>>          Does someone know a detailed howto, that describes a similiar
>>> setup like
>>>     mine?
>>>
>> http://tycho.ws/blog/2016/12/uidmap.html is a blog post I wrote a
>> while ago talking about how to set this up with your home directory.
>> You can mimic the settings for whatever user map you want, though.
>>
>> Cheers,
>>
>> Tycho
>>
>>     Every time I read something, I feel like missing something important,
>>>     because I could not find a coherent compendium of possible options
>>> on how
>>>     to do something.
>>>          kind regards,
>>>     John
>>> _______________________________________________
>>> lxc-users mailing list
>>> lxc-users at lists.linuxcontainers.org
>>> http://lists.linuxcontainers.org/listinfo/lxc-users
>>>
>>
>>
> _______________________________________________
> lxc-users mailing list
> lxc-users at lists.linuxcontainers.org
> http://lists.linuxcontainers.org/listinfo/lxc-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linuxcontainers.org/pipermail/lxc-users/attachments/20161221/5941b7ca/attachment.html>