search

NetApp / netappdvp

A Docker volume plugin for NetApp storage
96 stars 33 forks source link

Feature Request: Resize NFS Volume's with nDVP #116

Closed sim-heg closed 6 years ago

sim-heg commented 6 years ago

Not sure if it is even compatible with the docker volume API but it would be nice if it would be possible to re-size (NFS) volumes with the nDVP.

Could look like this: docker volume create -d netapp --name vol1 -o size=50g

docker volume create -d netapp --name vol1 -o resize=100g

clintonk commented 6 years ago

Hello, Simon. We agree in principle with adding the ability to resize Docker volumes, but I think we're limited by the Docker volume API. A Docker volume plugin has multiple entry points, and during a volume creation workflow the Docker engine calls Get before calling Create. If Get succeeds, then the volume already exists and it won't call Create. So I don't see how to make this work without a new Docker volume command.

Note that another community member proposed the ability to modify volumes including the size, and Docker ultimately didn't accept it. Similarly, we proposed adding snapshots/clones, and despite overwhelming community support the Docker folks have not agreed to accept that, either. I'd love to be wrong, but at this point I would be skeptical about seeing any significant improvements to the Docker volume facility.