[lxc-users] lxd: "-B backingstore" equivalent?

[Serge Hallyn]

Lxd will not be as flexible as lxc in many ways, including with
respect to backing stores.

What will become the recommended backing store is actualy not yet
implemented, but will be soon - that is lvm with thinpools.  You'll
be able to either provide a vg with the default name, or specify a
custom vg name, for all of lxd to use, and lxd will use lvm snapshots
for quick container launches.

In lieu of that, you currently can use btrfs - just make sure that
/var/lib/lxd is on a btrfs.  The first launch of a container from a
new image will create a btrfs cache directory, and each launch from
that image will be done using a btrfs snapshot.

-serge

Quoting Tomasz Chmielewski (mangoo at wpkg.org):
> Is there a "-B btrfs" equivalent in lxd?
> 
> For example, with lxc, I would use:
> 
> # lxc-create --template download --name test-container -B btrfs
> 
>        -B backingstore
>               'backingstore'  is  one  of  'dir',  'lvm', 'loop',
> 'btrfs', 'zfs', or 'best'. The default is 'dir', meaning that the
> container root filesystem will be a directory under
> /var/lib/lxc/container/rootfs.
> 
> 
> How can I do the same with lxd (lxc command)? It seems to default to
> "dir".
> 
> # lxc launch images:ubuntu/trusty/amd64 test-container
> 
> 
> -- 
> Tomasz Chmielewski
> http://wpkg.org
> 
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