[ovirt-devel] UI Plugin to Upload ISO Files
iheim at redhat.com
Mon Dec 15 23:08:56 UTC 2014
On 12/15/2014 07:59 PM, Keith Robertson wrote:
> On 12/11/14 10:15 PM, Lucas Vandroux wrote:
>> Dear all,
>> I'm actually working to create a custom user interface plugin for oVirt
>> web administration application to let user upload iso files.
>> I'm in the very first stage of the project. I'm planning to use
>> angularjs with the ng-flow module <https://github.com/flowjs/ng-flow> on
>> the client-side and a java servlet using the ovirt-iso-uploader
>> <http://www.ovirt.org/OVirt_engine_tools#ovirt-iso-uploader> engine tool
>> on the server-side.
>> All my code is going to be on Github in the following repository
>> : iso-uploader-plugin
>> <https://github.com/ovirt-china/iso-uploader-plugin>. You can also check
>> a more detailed version of the specifications on my wiki
>> I'm writing to you guys to know if there is a way for us to collaborate
>> as you may also want to develop something like this to be integrated in
>> the oVirt Engine.
>> Best regards,
>> - Lucas Vandroux （冯凯）
> I am glad to see someone finally picking this up.
> I don't maintain the ISO uploader anymore but I can offer you some
> suggestions that may help you with your effort.
> 1) The mount command which is used by the 'ovirt-iso-uploader' requires
> root. Hence, the calling process must be root. If you shell out to the
> 'ovirt-iso-uploader' from a servlet running in Ovirt Engine the calling
> process will not be root. Instead, it will be the user 'ovirt'. As
> such, uploading a file will fail because the mount command will fail.
> To circumvent this issue, I suggest you investigate creating a
> consolehelper script to call the program as the user 'ovirt' and elevate
> your privileges to root. I would avoid sudo for this purpose.
> 2) The plug-in you are creating will only work if Ovirt Engine can
> actually reach the NFS server. AIUI, there are valid configurations
> where Hypervisors can reach the NFS server but the Engine cannot. I am
> not sure if this is still the case but you will want to gracefully
> handle this.
> 3) SSH is easier. If you can SSH to the NFS server and upload the files
> that way then you will not have to shell out to the
> 'ovirt-iso-uploader'. You can use the Java SSH library that ships with
> oVirt. I would suggest you review lines in  so that you understand
> the necessary file permissions. It is important to note; however, that
> not all NFS server support SSH so this should not be the default
> uploading mechanism.
though as mentioned on the thread, we'd really love to see this done via
upload to storage via vdsm communication.
>  http://goo.gl/0ihn8W
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