0-Disk

README

G8OS Block Storage

The G8OS block storage allows to create and use block devices (volumes) on top of the G80S object storage.

A volume can be deduped, have various blocksizes and depending on the underlying objectstor cluster used, have different speed characteristics.

Make sure tot have Golang version 1.6 or above installed!

Components:

• Volume Controller AYS to manage volumes. A rest api allows easy access from external systems.
• NBD Server A Network Block Device server to expose the volumes to virtual machines.

Build for g8os

• Clone the code to your GOPATH and go get the dependencies:

go get -d github.com/g8os/blockstor
cd $GOPATH/src/github.com/g8os/blockstor/nbdserver

• Build (totally static) the binary: CGO_ENABLED=0 GOOS=linux go build -a -ldflags '-extldflags "-static"' .
• Put that single binary somewhere alone: mkdir /tmp/gonbdserver && cp nbdserver /tmp/gonbdserver
• From JumpScale, create the flist:

kvs = j.servers.kvs.getRocksDBStore(name='flist', namespace=None, dbpath="/tmp/flist-gonbdserver.db")
f = j.tools.flist.getFlist(rootpath='/tmp/gonbdserver', kvs=kvs)
f.add('/tmp/gonbdserver/')
f.upload("remote-ardb-server", 16379)

• Pack your rocksdb database, and you're done:

cd /tmp/flist-gonbdserver.db/
tar -cf ../flist-gonbdserver.db.tar *
cd .. && gzip flist-gonbdserver.db.tar