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Re: [RFC][PATCH 0/9] Make containers kernel objects

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On Mon, 2017-05-22 at 12:21 -0700, James Bottomley wrote:
> 
> > > >  (3) nfsdcltrack.  A way for NFSD to access stable storage for 
> > > > tracking of persistent state.  Again, network-namespace 
> > > > dependent, but also perhaps mount-namespace dependent.
> > 
> > Definitely mount-namespace dependent.
> > 
> > > 
> > > So again, given we can set this up to work today, this sounds like 
> > > more a restriction that will bite us than an enhancement that gives 
> > > us extra features.
> > > 
> > 
> > How do you set this up to work today?
> 
> Well, as above, it spawns into the root, you jump it to where it should
> be and re-execute or simply handle in the host. 
> 
> > AFAIK, if you want to run knfsd in a container today, you're out of 
> > luck for any non-trivial configuration.
> 
> Well "running knfsd in a container" is actually different from having a
> containerised nfs export.  My understanding was that thanks to the work
> of Stas Kinsbursky, the latter has mostly worked since the 3.9 kernel
> for v3 and below.  I assume the current issue is that there's a problem
> with v4?

Oh, ok, I thought that, say, a docker (NFS) volumes-from a container to another
container didn't work for any version of NFS.

Certainly didn't work last time I tried, it was a while ago though.

Ian

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[RFC][PATCH 0/9] Make containers kernel objects David Howells <dhowells@redhat.com> - 2017-05-22 18:30 +0200
  [PATCH 8/9] Honour CONTAINER_NEW_EMPTY_FS_NS David Howells <dhowells@redhat.com> - 2017-05-22 18:30 +0200
  [PATCH 3/9] Provide /proc/containers David Howells <dhowells@redhat.com> - 2017-05-22 18:30 +0200
  Re: [RFC][PATCH 0/9] Make containers kernel objects James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-05-22 19:00 +0200
    Re: [RFC][PATCH 0/9] Make containers kernel objects Aleksa Sarai <asarai@suse.de> - 2017-05-22 19:20 +0200
      Re: [RFC][PATCH 0/9] Make containers kernel objects David Howells <dhowells@redhat.com> - 2017-05-23 17:00 +0200
        Re: [RFC][PATCH 0/9] Make containers kernel objects ebiederm@xmission.com (Eric W. Biederman) - 2017-05-23 17:10 +0200
          Re: [RFC][PATCH 0/9] Make containers kernel objects David Howells <dhowells@redhat.com> - 2017-05-23 17:20 +0200
            Re: [RFC][PATCH 0/9] Make containers kernel objects ebiederm@xmission.com (Eric W. Biederman) - 2017-05-23 17:30 +0200
              Re: [RFC][PATCH 0/9] Make containers kernel objects James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-05-23 17:50 +0200
                Re: [RFC][PATCH 0/9] Make containers kernel objects David Howells <dhowells@redhat.com> - 2017-05-23 18:40 +0200
                Re: [RFC][PATCH 0/9] Make containers kernel objects ebiederm@xmission.com (Eric W. Biederman) - 2017-05-24 10:40 +0200
                Re: [RFC][PATCH 0/9] Make containers kernel objects Ian Kent <raven@themaw.net> - 2017-05-24 11:20 +0200
    Re: [RFC][PATCH 0/9] Make containers kernel objects Jessica Frazelle <me@jessfraz.com> - 2017-05-22 19:30 +0200
    Re: [RFC][PATCH 0/9] Make containers kernel objects Jeff Layton <jlayton@redhat.com> - 2017-05-22 20:40 +0200
      Re: [RFC][PATCH 0/9] Make containers kernel objects James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-05-22 21:30 +0200
        Re: [RFC][PATCH 0/9] Make containers kernel objects Jeff Layton <jlayton@redhat.com> - 2017-05-23 00:20 +0200
        Re: [RFC][PATCH 0/9] Make containers kernel objects Ian Kent <raven@themaw.net> - 2017-05-23 12:40 +0200
    Re: [RFC][PATCH 0/9] Make containers kernel objects Ian Kent <raven@themaw.net> - 2017-05-23 11:40 +0200
    Re: [RFC][PATCH 0/9] Make containers kernel objects David Howells <dhowells@redhat.com> - 2017-05-23 16:00 +0200
      Re: [RFC][PATCH 0/9] Make containers kernel objects James Bottomley <James.Bottomley@HansenPartnership.com> - 2017-05-23 17:10 +0200
      Re: [RFC][PATCH 0/9] Make containers kernel objects ebiederm@xmission.com (Eric W. Biederman) - 2017-05-23 17:40 +0200
  Re: [RFC][PATCH 0/9] Make containers kernel objects Jessica Frazelle <me@jessfraz.com> - 2017-05-22 19:20 +0200
    Re: [RFC][PATCH 0/9] Make containers kernel objects David Howells <dhowells@redhat.com> - 2017-05-23 17:20 +0200
  Re: [RFC][PATCH 0/9] Make containers kernel objects ebiederm@xmission.com (Eric W. Biederman) - 2017-05-22 21:20 +0200
    Re: [RFC][PATCH 0/9] Make containers kernel objects Jeff Layton <jlayton@redhat.com> - 2017-05-23 00:30 +0200
      Re: [RFC][PATCH 0/9] Make containers kernel objects ebiederm@xmission.com (Eric W. Biederman) - 2017-05-23 15:10 +0200
        Re: [RFC][PATCH 0/9] Make containers kernel objects Jeff Layton <jlayton@redhat.com> - 2017-05-23 16:30 +0200
        Re: [RFC][PATCH 0/9] Make containers kernel objects Djalal Harouni <tixxdz@gmail.com> - 2017-05-23 16:40 +0200
          Re: [RFC][PATCH 0/9] Make containers kernel objects Colin Walters <walters@verbum.org> - 2017-05-23 17:00 +0200
            Re: [RFC][PATCH 0/9] Make containers kernel objects Colin Walters <walters@verbum.org> - 2017-05-23 17:40 +0200
            Re: [RFC][PATCH 0/9] Make containers kernel objects David Howells <dhowells@redhat.com> - 2017-05-23 17:40 +0200
            Re: [RFC][PATCH 0/9] Make containers kernel objects Jeff Layton <jlayton@redhat.com> - 2017-05-23 17:40 +0200
      Re: [RFC][PATCH 0/9] Make containers kernel objects Djalal Harouni <tixxdz@gmail.com> - 2017-05-23 16:30 +0200
    Re: [RFC][PATCH 0/9] Make containers kernel objects David Howells <dhowells@redhat.com> - 2017-05-23 18:20 +0200
  Re: [RFC][PATCH 0/9] Make containers kernel objects Ian Kent <raven@themaw.net> - 2017-05-23 12:20 +0200
  Re: [RFC][PATCH 0/9] Make containers kernel objects ebiederm@xmission.com (Eric W. Biederman) - 2017-05-23 17:40 +0200

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