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Object Storage and SFTP Storage can serve as origins for Gcore CDN resources, delivering content from storage through the CDN network.

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CDN origin configuration

Both storage types connect as CDN origins through the same resource creation wizard, with origin configuration varying by storage type.

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Object Storage

Two connection modes are available depending on whether the bucket is public or requires authentication.
1

Open CDN resources

Navigate to the CDN section and click Create CDN resource.

CDN resources list with the Create CDN resource button
2

Configure the origin source

In the Origin section, Specify content origin is selected by default. Choose a connection type based on bucket visibility:

  • Public bucket (anonymous access allowed): In the URL tab, enter the bucket hostname in the Origin source field: <bucket-name>.<location>.cloud.gcore.lu.
    • Private bucket (authentication required): Select the S3 storage tab and enter the Access Key ID, Secret access key, AWS region, and Bucket name. Credentials are available in Object Storage > Object Storages > three-dot menu > Details.
CDN resource creation form with URL tab and Origin source field
3

(Optional) Add a custom domain

Specify a custom domain — the setup guide covers required DNS changes.

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SFTP Storage

SFTP Storage connects as a CDN origin using a URL-based hostname, without bucket authentication options.
1

Open CDN resources

Navigate to CDN resources and click Create CDN resource.

CDN resources list with the Create CDN resource button
2

Configure the origin source

In the Origin section, select the URL tab and enter the origin source in the Origin source field using the format <storage-name>.<hostname>.

The storage name and hostname are available in Object Storage > Object Storages — open the three-dot actions menu for the storage and select Details.

Storage details panel showing the storage name and hostname fields

If the storage name is 12345-test and the hostname is ams.origin.gcdn.co, enter 12345-test.ams.origin.gcdn.co in the Origin source field.

3

(Optional) Add a custom domain

Specify a custom domain — the setup guide covers required DNS changes.

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CDN request URLs

URL patterns differ by origin type.

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Object Storage origin

The addressing scheme <bucket-name>.<location>.cloud.gcore.lu hides the storage hostname from CDN requests, keeping the origin private. Use the following format to request files through CDN: http(s)://<custom-domain>/<folder>/<file> If files are in the bucket root rather than a subfolder, omit <folder> from the URL. Given a bucket mybucket at s-ed1.cloud.gcore.lu and a CDN resource with custom domain cdn.example.com, request picture.png using: http://cdn.example.com/picture.png
By default, buckets and all stored files are private. To make files public, configure ACL rules using AWS CLI or S3cmd, or follow the Amazon ACL documentation.

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SFTP Storage origin

Upload files to the htdocs directory in the SFTP storage. When requesting content through CDN, omit the directory from the URL. Path to a file in the storage: sftp://12345-test@ams.origin.gcdn.co:2200/export/home/12345-test/htdocs/picture.png If the CDN custom domain is cdn.example.com, the request URL is: http://cdn.example.com/picture.png