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Configuring request redirection

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Updated at December 16, 2024

With request redirection, you can reconfigure paths of requests to your content. This can be useful when restructuring files and folders on an origin. You can also use redirection if you want to keep search engine rankings of your content when moving your resource to a new address.

To enable request redirection on a CDN resource:

  1. In the management console, select the folder where your resource is located.

  2. Select Cloud CDN.

  3. Click the CDN resource name.

  4. In the top-right corner, click Edit.

  5. Enable Redirect requests.

  6. In the Rewrite rule field, set a rule, e.g., /(.*) /new-folder/$1.

    A rewrite rule must contain two space-separated directives: the original path you need to replace, and the edited path, which replaces the original path.

    You can use regular expressions in the rule. For more information, see Rewrite rule.

  7. In the Flag field, specify the required flag:

    • break: Terminates the processing of the current set of directives.
    • last: Terminates the processing of the current set of directives and starts searching for a new CDN server that matches the new URI.
    • redirect: Returns a temporary redirect with the 302 status code to the user. This flag is used if the replacement string does not start with http://, https://, or $scheme.
    • permanent: Returns a permanent redirect with the 301 status code to the user.

  8. Click Save.

If you do not have the Yandex Cloud command line interface yet, install and initialize it.

The folder specified in the CLI profile is used by default. You can specify a different folder using the --folder-name or --folder-id parameter.

  1. View the description of the CLI update resource command:

    yc cdn resource update --help

  2. Get a list of all resources in the default folder:

    yc cdn resource list --format yaml

    Result:

    - id: bc8ceo77zu7h********
  folder_id: b1gt6g8ht345********
  cname: cdn.example.com
  created_at: "2024-09-10T19:15:16.305043Z"
  updated_at: "2024-09-11T17:19:50.622628Z"
  active: true
  options:
    edge_cache_settings:
      enabled: true
      default_value: "345600"
    query_params_options:
      ignore_query_string:
        enabled: true
        value: true
    slice:
      enabled: true
      value: true
    host_options:
      host:
        enabled: true
        value: cdn-source-sample-bucket.storage.yandexcloud.net
    stale:
      enabled: true
      value:
        - error
        - updating
    ignore_cookie:
      enabled: true
      value: true
  origin_group_id: "328146"
  origin_group_name: Origins for cdn.example.com (225300)
  origin_protocol: HTTPS
  ssl_certificate:
    type: CM
    status: READY
    data:
      cm:
        id: fpquvh0em4no********

    Save the CDN resource ID (the id field at the beginning of the output) as you will need it at the next step.

  3. Enable request redirection by specifying the CDN resource ID you saved in the previous step:

    yc cdn resource update <resource_ID> \
  --rewrite-body '<rewrite_rule>' \
  --rewrite-flag <flag>

    Where:

    • --rewrite-body: Rewrite rule, e.g., --rewrite-body '/(.*) /new-folder/$1'.

      A rewrite rule must contain two space-separated directives: the original path you need to replace, and the edited path, which replaces the original path.

      You can use regular expressions in the rule. For more information, see Rewrite rule.

    • --rewrite-flag: Flag. The possible values are:

      • break: Terminates the processing of the current set of directives.
      • last: Terminates the processing of the current set of directives and starts searching for a new CDN server that matches the new URI.
      • redirect: Returns a temporary redirect with the 302 status code to the user. This flag is used if the replacement string does not start with http://, https://, or $scheme.
      • permanent: Returns a permanent redirect with the 301 status code to the user.
    Result
    id: bc8ceo77zu7h********
folder_id: b1gt6g8ht345********
cname: cdn.example.com
created_at: "2024-09-10T19:15:16.305043Z"
updated_at: "2024-09-11T17:55:21.100567Z"
active: true
options:
  edge_cache_settings:
    enabled: true
    default_value: "345600"
  query_params_options:
    ignore_query_string:
      enabled: true
      value: true
  slice:
    enabled: true
    value: true
  host_options:
    host:
      enabled: true
      value: cdn-source-sample-bucket.storage.yandexcloud.net
  stale:
    enabled: true
    value:
      - error
      - updating
  ignore_cookie:
    enabled: true
    value: true
  rewrite:
    enabled: true
    body: /(.*) /new-folder/$1
    flag: BREAK
origin_group_id: "328146"
origin_group_name: Origins for cdn.example.com (225300)
origin_protocol: HTTPS
ssl_certificate:
  type: CM
  status: READY
  data:
    cm:
      id: fpquvh0em4no********

    To disable request redirection for a CDN resource, run this command by specifying the CDN resource ID:

    yc cdn resource update <resource_ID> --clear-rewrite

    For more information about the yc cdn resource update command, see the CLI reference.

Use the update REST API method for the Resource resource or the ResourceService/Update gRPC API call.

It may take up to 15 minutes for the new settings of the existing resource to apply to CDN servers. After that, we recommend purging the resource cache.

See also

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Enabling origin shielding
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Setting up access via a secure token