Allowing and denying availability zone shutdown

With Terraform, you can quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. These files store the infrastructure description written in HashiCorp Configuration Language (HCL). If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.

Terraform is distributed under the Business Source License. The Yandex Cloud provider for Terraform is distributed under the MPL-2.0 license.

For more information about the provider resources, see the relevant documentation on the Terraform website or its mirror.

If you do not have Terraform yet, install it and configure the Yandex Cloud provider.

1. In the configuration file, specify the allow_zonal_shift parameter set to true in the yandex_alb_load_balancer resource description:

   resource "yandex_alb_load_balancer" "my-balancer" {
     ...
     allow_zonal_shift = true
     ...
   }
   

2. Apply the changes:

   1. In the terminal, go to the directory where you edited the configuration file.

   2. Make sure the configuration file is correct using this command:

      terraform validate
      

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

      Success! The configuration is valid.
      

   3. Run this command:

      terraform plan
      

      You will see a detailed list of resources. No changes will be made at this step. If the configuration contains any errors, Terraform will show them.

   4. Apply the changes:

      terraform apply
      

   5. Type yes and press Enter to confirm the changes.

   Terraform will change all required resources. You can check the update in the management console.

   Timeouts

   The Terraform provider limits operations with Application Load Balancer load balancers to 10 minutes.

   Operations in excess of this time will be interrupted.

   How do I modify these limits?

   Add the timeouts section to the load balancer description, e.g.:

   resource "yandex_alb_load_balancer" "<load_balancer_name>" {
     ...
     timeouts {
       create = "60m"
       update = "60m"
       delete = "60m"
     }
   }
   

For more information about yandex_alb_load_balancer properties, see this Terraform article.

To allow zonal shift when creating an L7 load balancer, use the create REST API method for the LoadBalancer resource and set "allowZonalShift": "true", or use the LoadBalancerService/Create gRPC API call and set "allow_zonal_shift": "true".

To allow zonal shift when updating an L7 load balancer, use the update REST API method for the LoadBalancer resource and specify "allowZonalShift": "true", or use the LoadBalancerService/Update gRPC API call with "allow_zonal_shift": "true".

With Terraform, you can quickly create a cloud infrastructure in Yandex Cloud and manage it using configuration files. These files store the infrastructure description written in HashiCorp Configuration Language (HCL). If you change the configuration files, Terraform automatically detects which part of your configuration is already deployed, and what should be added or removed.

Terraform is distributed under the Business Source License. The Yandex Cloud provider for Terraform is distributed under the MPL-2.0 license.

For more information about the provider resources, see the relevant documentation on the Terraform website or its mirror.

If you do not have Terraform yet, install it and configure the Yandex Cloud provider.

1. In the configuration file, specify the allow_zonal_shift parameter set to false in the yandex_alb_load_balancer resource description:

   resource "yandex_alb_load_balancer" "my-balancer" {
     ...
     allow_zonal_shift = false
     ...
   }
   

2. Apply the changes:

   1. In the terminal, go to the directory where you edited the configuration file.

   2. Make sure the configuration file is correct using this command:

      terraform validate
      

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

      Success! The configuration is valid.
      

   3. Run this command:

      terraform plan
      

      You will see a detailed list of resources. No changes will be made at this step. If the configuration contains any errors, Terraform will show them.

   4. Apply the changes:

      terraform apply
      

   5. Type yes and press Enter to confirm the changes.

   Terraform will change all required resources. You can check the update in the management console.

   Timeouts

   The Terraform provider limits operations with Application Load Balancer load balancers to 10 minutes.

   Operations in excess of this time will be interrupted.

   How do I modify these limits?

   Add the timeouts section to the load balancer description, e.g.:

   resource "yandex_alb_load_balancer" "<load_balancer_name>" {
     ...
     timeouts {
       create = "60m"
       update = "60m"
       delete = "60m"
     }
   }
   

For more information about yandex_alb_load_balancer properties, see this Terraform article.

To deny zonal shift when creating an L7 load balancer, use the create REST API method for the LoadBalancer resource and set "allowZonalShift": "false", or use the LoadBalancerService/Create gRPC API call and set "allow_zonal_shift": "false".

To deny zonal shift when updating an L7 load balancer, use the update REST API method for the LoadBalancer resource and specify "allowZonalShift": "false", or use the LoadBalancerService/Update gRPC API call with "allow_zonal_shift": "false".