Manage objects and containers
The OpenStack Object Storage service provides the
swift client, which is a command-line interface (CLI).
Use this client to list objects and containers, upload objects to
containers, and download or delete objects from containers. You can also
gather statistics and update metadata for accounts, containers, and
objects.
This client is based on the native swift client library,
client.py, which seamlessly
re-authenticates if the current token expires during
processing, retries operations multiple times, and provides a
processing concurrency of 10.
Create and manage containers
To create a container, run the following command and replace
CONTAINER with the name of your
container.
$ swift post CONTAINER
To list all containers, run the following command:
$ swift list
To check the status of containers, run the following
command:
$ swift stat
Account: AUTH_7b5970fbe7724bf9b74c245e77c03bcg
Containers: 2
Objects: 3
Bytes: 268826
Accept-Ranges: bytes
X-Timestamp: 1392683866.17952
Content-Type: text/plain; charset=utf-8
You can also use the swift stat command with the
ACCOUNT or CONTAINER
names as parameters.
$ swift stat CONTAINER
Account: AUTH_7b5970fbe7724bf9b74c245e77c03bcg
Container: storage1
Objects: 2
Bytes: 240221
Read ACL:
Write ACL:
Sync To:
Sync Key:
Accept-Ranges: bytes
X-Timestamp: 1392683866.20180
Content-Type: text/plain; charset=utf-8
Manage access
Users have roles on accounts. For example, a user with the admin
role has full access to all containers and objects in an account. You
can set access control lists (ACLs) at the container level and support
lists for read and write access, which you set with the
X-Container-Read and
X-Container-Write headers.
To give a user read access, use the swift post
command with the -r parameter. To give a user
write access, use the -w parameter.
The following example enables the testuser user
to read objects in the container:
$ swift post -r 'testuser'
You can also use this command with a list of users.
If you use StaticWeb middleware to enable Object Storage to serve
public web content, use .r:, followed by a list of
allowed referrers.
The following command gives object access to all referring
domains:
$ swift post -r '.r:*'
Manage objects
To upload an object to a container, run the following
command:
$ swift upload CONTAINER OBJECT_FILENAME
To upload in chunks, for large files, run the following command:
$ swift upload -S CHUNK_SIZE CONTAINER OBJECT_FILENAME
To check the status of the object, run the following
command:
$ swift stat CONTAINER OBJECT_FILENAME
Account: AUTH_7b5970fbe7724bf9b74c245e77c03bcg
Container: storage1
Object: images
Content Type: application/octet-stream
Content Length: 211616
Last Modified: Tue, 18 Feb 2014 00:40:36 GMT
ETag: 82169623d55158f70a0d720f238ec3ef
Meta Orig-Filename: images.jpg
Accept-Ranges: bytes
X-Timestamp: 1392684036.33306
To list the objects in a container, run the following command:
$ swift list CONTAINER
To download an object from a container, run the
following command:
$ swift download CONTAINER OBJECT_FILENAME