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You can create, delete, copy, and download objects and containers using the RAC Dashboard. Additional features such as setting metadata which is used for most advanced features are not available via the Dashboard.

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Command Line (swift client)

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To begin using the S3 API, you first need to obtain a set of "EC2 Credentials". This is a set of credentials formatted in the same way as Amazon's credentials. You can download your EC2 Credentials by going here (https://cloud.cybera.ca/project/api_access/) and clicking "Download EC2 View Credentials". This will trigger a zip file to be downloaded to your workstation.

Using Unzip the file and look inside the ec2rc.sh file using a text editor of your choice. Inside this file, you will see a bunch of variables, including:'ll want to create a new file (eg. s3cred.sh) with the following details:

export EC2AWS_ACCESS_KEY_ID=foo
export EC2AWS_SECRET_ACCESS_KEY=bar

These are your EC2 credentials.

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Alternatively you can find these credentials via the OpenStack CLI tools with the command openstack ec2 credentials list .

The endpoint will be dependent on which region you are wishing to use - either yyc.cloud.cybera.ca:8080  or yeg.cloud.cybera.ca:8080 

s3cmd

For s3cmd the following example .cfg file can be used:

host_base = https://swift-yyc.cloud.cybera.ca:8080
host_bucket = %(bucket)s.swift-yyc.cloud.cybera.ca:8080
access_key = <access key>
secret_key = <secret key>
use_https = True

To use the Edmonton region, change the yyc in the URLs to yeg.

GUI Applications

Cyberduck

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• Server: yyc.cloud.cybera.ca (for the Calgary region) or yeg.cloud.cybera.ca (for the Edmonton region).
• Port: 8080
• Access Key ID: Your EC2_ACCESS_KEY
• Secret Access Key: Your EC2_SECRET_KEY

OpenStack Swift Native

To use Cyberduck with the Swift API, you’ll need to download a special profile to set some extra settings for bookmarks in Cyberduck. You can download the generic profile or a profile we have created that is specific to RAC.

1. Download the additional profile from Cyberduck’s website called OpenStack Swift (Keystone). Double click on this file and enter the following details in a new bookmark using the OpenStack Swift (Keystone) preset to access  the  object storage:

• EC2_SECRET_KEY

OpenStack Swift Native

Cyberduck provides built in support OpenStack Swift with Keystone V3. To create a connection, create a new OpenStack Swift (Version 3) connection with the details below:

More documentation is available on the Cyberduck Website. 

This method does have the occasional issue where you need reset the port number (it will also display a warning about sending the password as clear text)

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swift post -m 'X-Versions-Location: myContainer-versions' myContainer

Temporary URLs for Objects

One last feature we wanted to highlight is the ability to offer temporary URLs for objects or expiring URLs as they are also called. This allows you to provide a URL that will stop functioning after a certain amount of time.

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Swift segments files to support objects larger than 5 GB. If you want to upload a file larger than 5GB using the Swift CLI you will need to ensure you use the -S flag and set a segment size (below is 4GB segment size).

swift upload container_name -S 4294967296 my_large_fils.tar

By default Swift splits files larger than 5 GB while Cyberduck performs this for if the file is larger than 2GB.  There are a couple caveats with the different approaches the two applications  take take to handling large files when it comes to accessing these files via a web browser (completely unrelated to the size they use to split files).

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