Adding a VM to a placement group

If you do not have the Yandex Cloud CLI installed yet, install and initialize it.

By default, the CLI uses the folder specified when creating the profile. To change the default folder, use the yc config set folder-id <folder_ID> command. You can also set a different folder for any specific command using the --folder-name or --folder-id parameter.

1. Create a VM:

   yc compute instance create \
     --zone ru-central1-a \
     --name instance-in-group-2
   

   Where:

   • --zone: Availability zone for the VM.
   • --name: VM name.

   Result:

   id: epdlv1pp5401********
   ...
   

2. View a list of VMs in the placement group:

   yc compute placement-group list-instances \
     --name my-group
   

   Where --name is the placement group name.

   Result:

   +----------------------+---------------------+-------------------+---------+-------------+-------------+
   |          ID          |        NAME         |      ZONE ID      | STATUS  | EXTERNAL IP | INTERNAL IP |
   +----------------------+---------------------+-------------------+---------+-------------+-------------+
   | epdep2kq6dt5******** | instance-in-group-1 |   ru-central1-a   | RUNNING |             | 10.129.0.5  |
   +----------------------+---------------------+-------------------+---------+-------------+-------------+
   

3. Stop the VM by specifying its name in the command below:

   yc compute instance stop instance-in-group-2
   

   Result:

   id: epdlv1pp5401********
   ...
   status: STOPPED
   

4. Add the VM to the placement group:

   yc compute instance update \
     --name instance-in-group-2 \
     --placement-group-name my-group \
     --placement-group-partition <partition_number>
   

   Where:

   • --name: VM name.

   • --placement-group-name: Placement group name.

   • --placement-group-partition: Partition number in the placement group with the partition placement strategy.

     Note

     If you do not specify the partition number when adding a VM to a partition placement group, the VM will be added to a random partition.

   Result:

   id: epdlv1pp5401********
   ...
   placement_policy:
     placement_group_id: fd83bv4rnsna********
   

5. Check that the VM is now in the placement group:

   yc compute placement-group list-instances \
     --name my-group
   

   Where --name is the placement group name.

   Result:

   +----------------------+---------------------+-------------------+---------+-------------+-------------+
   |          ID          |        NAME         |      ZONE ID      | STATUS  | EXTERNAL IP | INTERNAL IP |
   +----------------------+---------------------+-------------------+---------+-------------+-------------+
   | epdep2kq6dt5******** | instance-in-group-1 |   ru-central1-a   | RUNNING |             | 10.129.0.5  |
   | epdlv1pp5401******** | instance-in-group-2 |   ru-central1-a   | STOPPED |             | 10.129.0.30 |
   +----------------------+---------------------+-------------------+---------+-------------+-------------+
   

6. Start the VM by specifying its name in the command below:

   yc compute instance start instance-in-group-2
   

   Result:

   id: epdlv1pp5401********
   ...
   status: RUNNING
   

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.

To add an existing VM to a placement group:

1. To the configuration file of the existing VM, add the placement_group_id field indicating the yandex_compute_placement_group placement group resource.

   Here is an example of the configuration file structure:

   ...
   resource "yandex_compute_instance" "vm-1" {
     name        = "my-vm"
     platform_id = "standard-v3"
     placement_policy {
       placement_group_id = "${yandex_compute_placement_group.group1.id}"
     }
   }
   
   resource "yandex_compute_placement_group" "group1" {
     name = "test-pg"
   }
   ...
   

   Where placement_group_id is the placement group ID.

   Note

   If you do not specify the partition number when adding a VM to a partition placement group, the VM will be added to a random partition.

   For more information about the resources you can create with Terraform, see the relevant provider documentation.

2. In the command line, go to the directory 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
   

   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.

5. Apply the changes:

   terraform apply
   

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

   This will create all the resources you need in the specified folder. You can check that the VM has been added to the placement group using the management console.

Use the update REST API method for the Instance resource or the InstanceService/Update gRPC API call.