Configuring resource caching

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: s0me1dkfjq********
   folder_id: s0mef01der7p********
   cname: testexample.com
   created_at: "2022-01-19T09:23:57.921365Z"
   updated_at: "2022-01-19T10:55:30.305141Z"
   active: true
   options:
     edge_cache_settings:
       enabled: true
       default value: "345600"
     cache_http_headers:
       enabled: true
       value:
       - content-type
       - content-length
       - connection
       - server
       - date
       - test
     stale:
       enabled: true
       value:
       - error
       - updating
     allowed_http_methods:
       value:
       - GET
       - POST
       - HEAD
       - OPTIONS
   origin_group_id: "89783"
   origin_group_name: My origins group
   origin_protocol: HTTP
   ssl_certificate:
     type: DONT_USE
     status: READY
   

3. To change the cache lifetime, run:

   yc cdn resource update <resource_ID> \
     --cache-expiration-time <time> \
     --browser-cache-expiration-time <time> \
     --ignore-cookie true \
     --ignore-query-string
   

   Where:

   • --cache-expiration-time: Cache lifetime in seconds.
   • --browser-cache-expiration-time: Browser cache lifetime in seconds.
   • --ignore-cookie: If true, ignores cookies.
   • --ignore-query-string: Ignores query parameters.

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

If you don't have Terraform, install it and configure the Yandex Cloud provider.

1. In the configuration file, describe the parameters of the yandex_cdn_resource CDN resource you want to create:

   terraform {
     required_providers {
       yandex = {
         source  = "yandex-cloud/yandex"
         version = "0.69.0"
       }
     }
   }
   
   provider "yandex" {
     token     = "<OAuth_token>"
     cloud_id  = "<cloud_ID>"
     folder_id = "<folder_ID>"
     zone      = "<availability_zone>"
   }
   
   resource "yandex_cdn_resource" "my_resource" {
       cname               = "cdn1.yandex-example.ru"
       active              = false
       origin_protocol     = "https"
       secondary_hostnames = ["cdn-example-1.yandex.ru", "cdn-example-2.yandex.ru"]
       origin_group_id     = yandex_cdn_origin_group.my_group.id
       options {
         edge_cache_settings    = "345600"
         browser_cache_settings = "1800"
         ignore_cookie          = true
         ignore_query_params    = false
       }
   
   }
   

   Where:

   • cname: Primary domain name used for content distribution. This is a required parameter.
   • active: Flag indicating content availablity to end users. True: CDN content will be available to clients. This is an optional parameter. The default value is true.
   • origin_protocol: Protocol for origins. This is an optional parameter. The default value is http.
   • secondary_hostnames: Additional domain names. This is an optional parameter.
   • origin_group_id: Origin group ID. This is a required parameter. Use the ID from the description of the origin group in the yandex_cdn_origin_group resource.
   • The options section contains additional parameters of CDN resources:
     • browser_cache_settings: Browser cache lifetime in seconds. This is an optional parameter. The default value is 0.
     • edge_cache_settings: Cache lifetime for response codes in seconds. This is an optional parameter. The default value is 345600.
     • ignore_query_params: Ignore query parameters. This is an optional parameter. The default value is false.
     • ignore_cookie: Ignore cookies. This is an optional parameter. The default value is false.

   For more information about the yandex_cdn_resource parameters in Terraform, see the provider documentation.

2. In the command line, go to the folder with the Terraform configuration file.

3. Check the configuration using this command:

   terraform validate
   

   If the configuration is correct, you will get this message:

   Success! The configuration is valid.
   

4. Run this command:

   terraform plan
   

   The terminal will display a list of resources with parameters. No changes will be made at this step. If the configuration contains any errors, Terraform will point them out.

5. Apply the configuration changes:

   terraform apply
   

6. Confirm the changes: type yes into the terminal and press Enter.

   You can check the changes to the CDN resource in the management console or using this CLI command:

   yc cdn resource list
   

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