Re: [atomic-devel] mount gluster volume on atomic host

[Huamin Chen <hchen redhat com>]

I am open to both. 

A few things on top of my head are: 
- If as an option to standard mount, we need port (and backport) Colin's patch to each mount helper (util-linux, gluster fuse xlator, cephfs, etc).
- If just use a customized SPC with this special ld.preload, we are able to avoid the above code change, though probably at the expense of some operational overhead.

----- Original Message -----
From: "Daniel J Walsh" <dwalsh redhat com>
To: "Huamin Chen" <hchen redhat com>
Cc: atomic-devel projectatomic io
Sent: Thursday, March 5, 2015 5:26:37 PM
Subject: Re: [atomic-devel] mount gluster volume on atomic host

Could we make this a general purpose tool or add this as an option to
standard mount. 


On 03/05/2015 05:24 PM, Huamin Chen wrote:
> i tested the .so on nfs mount and it worked. 
> ceph test is in progress - had a hard time installing it on fc21 ...
>
> ----- Original Message -----
> From: "Daniel J Walsh" <dwalsh redhat com>
> To: "Huamin Chen" <hchen redhat com>, atomic-devel projectatomic io
> Sent: Thursday, March 5, 2015 5:17:21 PM
> Subject: Re: [atomic-devel] mount gluster volume on atomic host
>
>
> On 03/05/2015 03:31 PM, Huamin Chen wrote:
>> Hi
>>
>> I applied Colin's prior util-linux patch into gluster, so atomic host can mount a gluster volume into its own namespace, through a super privileged container.
>>
>> The idea is to inject a .so into ld.preload to intercept mount(2), the .so calls setns before entering mount(2). 
>>
>> The SPC is hchen/install-glusterfs-on-fc21
>>
>> Full details are here http://rootfs.github.io/Mount-Glusterfs-on-Docker-Host/
>>
>> code is here https://github.com/rootfs/install-glusterfs-on-fc21
>>
>> Huamin
>>
> If this works it is very cool. The question is how easy could it be to
> get this to work for other
> tools. (Nfs, CEPH)