> I would like to ask you for some explanations about OpenStack production use 
> case, 
>I don't understand how my new VM will be connected to Swift storage nodes.

You can use swift as backend to store the vm images (through glance). 
When a vm instance is created you can select these vm images as a source. 
Note that the image will be copied to local storage on the compute node when it 
is started so it is really just an image store, you can not directly run the 
image from swift.

>My question is: will the BLOBS (images, videos, user upload files..) of that 
>web apps, be automatically saved into 
>Swift storage? Or, our developers will have to change that every single 
>application's code and tell them to save >and retrieve BLOBS from remote Swift 
>servers?
Yes, the applications needs to be modified. 

Cheers,
Robert van Leeuwen

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