torusctl: support create volume from another volume's snapshot

coreos / torus

Torus Distributed Storage

https://coreos.com/blog/torus-distributed-storage-by-coreos.html

Apache License 2.0

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torusctl: support create volume from another volume's snapshot #403

Open nak3 opened 7 years ago

nak3 commented 7 years ago

fixes https://github.com/coreos/torus/issues/273

nak3 commented 7 years ago

usage example

1. prepare snapshot

./torusctl block snapshot list myvol
Volume: myvol
SNAPSHOT NAME  TIMESTAMP
snap1          2016-11-22T02:07:29Z
snap2          2016-11-22T02:07:30Z

2. create volume from another volume's snapshot

./torusctl volume create-block from-snapshot myvol@snap2 newvol --progress
newvol [==========================================================]  100 MB / 100 MB

3. new volume is created from another volume

./torusctl volume list
VOLUME NAME  SIZE    TYPE
newvol       95 MiB  block
myvol        95 MiB  block

mischief commented 7 years ago

i'd love to see this happen - but it does need to be done server side.

nak3 commented 7 years ago

I have already moved the code to block package and it could address the concern of command line code. I'm sorry, but could you please elaborate on what you mean the "server side"?

joshsouza commented 7 years ago

This feature would be incredibly valuable for my team's use-case. We are looking into alternatives such as Ceph or Portworx to create new persistent storage volumes for containers from a base snapshot, but this would make Torus a competitive solution. Any way we can get eyes on this?