Configuring S3 and OpenStack Swift Objects as Primary Storage¶
In ownCloud Enterprise Subscription, you can configure S3 objects as primary
storage. This replaces the default data directory, which is
/var/www/owncloud/data
on default Linux installations, and
C:\inetpub\wwwroot\owncloud\data
on Windows servers. However, you may need
to keep the data/
directory for these reasons:
- The ownCloud log file is saved in the data directory
- Legacy apps may not support using anything but the
data/
directory
You can move your logfile by changing its location in config.php
. You may still need
data/
for backwards compatibility with some apps.
Implications¶
It is important to note that ownCloud in object store mode will expect exclusive access to the object store container, because it only stores the binary data for each file. The metadata is currently kept in the local database for performance reasons.
The current implementation is incompatible with any app that uses direct file I/O and circumvents the ownCloud virtual filesystem. That includes Encryption and Gallery. Gallery stores thumbnails directly in the filesystem, and Encryption causes severe overhead because key files need to be fetched in addition to any requested file.
Configuration¶
Look in config.sample.php
for a example configurations. Copy the
relevant part to your config.php
file. Any objectstore needs to implement
\\OCP\\Files\\ObjectStore\\IObjectStore
and can be passed parameters in the
constructor with the arguments
key:
'objectstore' => array(
'class' => 'Implementation\\Of\\OCP\\Files\\ObjectStore\\IObjectStore',
'arguments' => array(
...
),
),
Amazon S3¶
The S3 backend mounts a bucket of the Amazon S3 object store
into the virtual filesystem. The class to be used is OCA\ObjectStore\S3
:
'objectstore' => array(
'class' => 'OCA\ObjectStore\S3',
'arguments' => array(
'key' => 'yourkey',
'secret' => 'yoursecret',
'bucket' => 'your-oc-bucket',
),
),
Ceph S3¶
The S3 backend can also be used to mount the bucket of a ceph object store via the s3 API
into the virtual filesystem. The class to be used is OCA\ObjectStore\S3
:
'objectstore' => array(
'class' => 'OCA\ObjectStore\S3',
'arguments' => array(
'key' => 'GEZ550B06Z2ZDB52CT21',
'secret' => '6Vdo7ObSMBlI4TMRw0jpRE75K6qS9QNTk6nBboxP',
'bucket' => 'devobjectstore',
'base_url' => 'http://ceph/',
'hostname' => 'ceph',
// you must use this region or the amazon lib will overwrite
// the path style when resetting the region
'region' => 's3-eu-west-1.amazonaws.com'
),
),
OpenStack Swift¶
The Swift backend mounts a container on an OpenStack Object Storage server
into the virtual filesystem. The class to be used is \\OC\\Files\\ObjectStore\\Swift
:
'objectstore' => array(
'class' => 'OC\\Files\\ObjectStore\\Swift',
'arguments' => array(
'username' => 'demo',
'password' => 'password',
'container' => 'owncloud',
'autocreate' => true,
'region' => 'RegionOne',
'url' => 'http://devstack:5000/v2.0',
'tenantName' => 'demo',
'serviceName' => 'swift',
),
),