Cloud Connections in StorageLink

Overview

A Cloud Connection defines the requisite setting needed for allowing a folder to connect to a cloud storage location.

In order to use a Cloud Connection, you will need to map it to a Folder. A Folder can be used as a logical mapping, similar to a mount point.

This includes the settings pertaining to the following cloud providers as shown below:

AWS

S3 bucket name

Prefix or relative path with in that bucket

The region in which the bucket is located

Encryption type for the server side encryption on the bucket

Whether you want to use the EC2 instance profile or an AWS access key/secret

Here is an example of a Cloud Connection:

S3 Bucket: s3://bryce-sandbox

S3 Encryption Option: SSE-S3

Cloud Connection Credentials: Uses Instance Profile credentials

When creating a Cloud Connection to S3, you will need to fill out the following fields:

S3 URL:

Enter the S3 Bucket name. Remember to follow the standard S3 Bucket naming convention:

Has to be globally unique (cannot conflict with S3 buckets in other AWS accounts)

Lowercase letters (no uppercase allowed), numbers, and hyphens

Must have fewer than 63 characters

Region:

The AWS region in which the S3 Bucket is located. If left blank the region of the StorageLink server will be used.

S3 Encryption Option:

S3 objects are encrypted at the time of upload. The encryption method you define on the Cloud Connection will apply to all subsequently uploaded S3 objects.

SSE-S3: The S3 service manages encryption behind the scenes. S3 objects are encrypted at rest, and the S3 service automatically decrypts the object so long as you have read-access.

KMS: KMS encryption offers more security value, because KMS key permissions are decoupled from S3 access permissions.

No Encryption: Do not override encryption settings, so that objects are encrypted using the S3 bucket's default encryption setting.

Cloud Connection Credentials:

The Use instance profile credentials option leverages the IAM permissions on the EC2 instance. This is the recommended approach, because the access key credentials are handled transparently, and rotated for you automatically.

If you want to restrict S3 permissions on a per-user basis, select the Use unique credentials option. You can set AWS Access Key credentials on the Cloud Connection. And then each can have their own dedicated Cloud Connection.

For creating the unique credentials, refer to this documentation.

Azure

Storage Account Name

Blob Container Name

Relative path within the Blob container

Connection String used to authenticate to the Storage Account

Blob storage environment (i.e. commercial endpoint versus GovCloud)

You may also use instance identity instead of a Connection String, see this article for Configuring instance identity.

Google

Bucket Name

Relative path following the Bucket

Service Account JSON Key File

 

You may also use instance identity instead of a JSON key, see this article for Configuring instance identity.

First launch

AWS

Upon first launch of an AWS StorageLink server, there will already be a default S3 bucket (named swiftgw-i-ec2_instance_id) configured and no additional connection is required.

To use your own bucket, edit the / folder and change the bucket value.

Azure

When you log into your StorageLink Interface, the first thing you see is a Configure Default Storage popup.

Click OK, and this will take you to a page titled Add Azure Cloud Connection.

Add Azure Cloud Connection

You will need to fill out the following form:

Storage Account Name: Name of your Azure Storage Account

Container Name: Name of the Container in your Storage Account

Cloud Connection Credentials:

Managed Identity: Check out this article for using a Managed Identity.

Connection String: Check out this article for using a Connection String.

 

Google

When you log into the StorageLink Interface, the first thing you see is a Configure Default Storage popup.

Click OK, and this will take you to a page titled Add Google Cloud Connection.

Add Google Cloud Connection

You will need to fill out the following form:

Bucket Name: The name of your Google Cloud Storage Bucket.

Cloud Connection Credentials:

Attached Service Account: Uses the Storage API to gain access to your Google Cloud Bucket. Check out this article for configuring an Attached Service Account.

Service Account JSON Key File: Get this fromIAM & Admin -> Service Accounts -> Service Account Name -> Keys or check out this article for creating the JSON Key File.

Test Connection

When you have configured all the fields, click Test Connection.

If all goes well, you should see 3 green checkmarks.

Otherwise, check your settings and get this step working before proceeding.

If you are stuck, you can reach out to us at support@thorntech.com.