Update on Apr 14th, 2016: LXC 2.0.0 First Support for Ceph RBD : http://cephnotes.ksperis.com/blog/2016/04/14/lxc-2-dot-0-0-first-support-for-ceph-rbd %}
A simple way to secure your data with containers is to use a distributed storage such as Ceph for LXC root storage.
For exemple :
# lxc-create -n mycontainer …A quick howto to install OpenNebula 4.8 with support for Ceph on Debian Wheezy.
$ onedatastore show cephds
DATASTORE 101 INFORMATION
ID : 101
NAME : cephds
USER : oneadmin
GROUP : oneadmin
CLUSTER : -
TYPE : IMAGE
DS_MAD : ceph
TM_MAD : ceph
BASE PATH : /var/lib/one//datastores/101
DISK_TYPE : RBD
Install …
For exemple :
# rados lspools
data
metadata
rbd
<---- ?????
.eu.rgw.root
.eu-west-1.domain.rgw
.eu-west-1.rgw.root
.eu-west-1.rgw.control
.eu-west-1.rgw.gc
.eu-west-1.rgw.buckets.index
.eu-west-1.rgw.buckets
.eu-west-1.log
# ceph osd dump | grep "pool 4 "
pool 4 '' replicated size 2 min_size 1 crush_ruleset 0 object_hash rjenkins pg_num 8 …var cluster = new rados.Rados( "ceph", "client.admin", "/etc/ceph/ceph.conf");
cluster.connect();
var ioctx = new rados.Ioctx(cluster, "data");
ioctx.aio_write("testfile2", new Buffer("1234567879ABCD"), 14, 0, function (err) {
if (err) {
throw err;
}
...
To my knowledge, there is not yet any wrapper Node.js for librados. (I guess …
This option allows you to answer a fairly constant worry in the case of heterogeneous cluster. Indeed, all the discs do not have the same performance or not the same ratio performance / size. With this option it is possible to reduce the load on a disk without reducing the amount …