Zero King

It seems that resize is not supported in `bdev_ubi`, and needs to be implemented there first. https://github.com/ubicloud/bdev_ubi/blob/4ef9bdd2852bdd1b75aa832fbc62b64bfb19f858/src/lib/bdev_ubi.c#L580-L594

Given that you are redoing the storage stack, I have a more ambitious proposal: implement _online_ disk resize, similar to what `virsh blockresize` does.

> You might write the configuration like: > > ``` > { > "match": { > "uri": "~^(?.*)$" > }, > "action": { > "rewrite": "/index.php?__path__=/$some_var" > } > }...

The syntax looks OK, except that I don't think `~` is needed (unless it's part of syntax to enable regex). You will need to consider what to do with the...