Sequentially restarting instances in a group

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

The folder specified when creating the CLI profile is used by default. To change the default folder, use the yc config set folder-id <folder_ID> command. You can specify a different folder using the --folder-name or --folder-id parameter.

1. See the description of the CLI command for restarting an instance group:

   yc compute instance-group rolling-restart --help
   

2. Get a list of folders in the default cloud:

   yc resource-manager folder list
   

   Result:

   +----------------------+--------------------+------------------+--------+
   |          ID          |        NAME        |      LABELS      | STATUS |
   +----------------------+--------------------+------------------+--------+
   | b1gd129pp9ha******** | my-folder          |                  | ACTIVE |
   | b1g66mft1vop******** | default            |                  | ACTIVE |
   +----------------------+--------------------+------------------+--------+
   

3. Get a list of instance groups in the selected folder by specifying its name:

   yc compute instance-group list \
     --folder-name <folder_name>
   

   Result:

   +----------------------+-----------------------+--------+------+
   |          ID          |         NAME          | STATUS | SIZE |
   +----------------------+-----------------------+--------+------+
   | amc65sbgfqeq******** | first-instance-group  | ACTIVE |    4 |
   +----------------------+-----------------------+--------+------+
   

4. Restart VM instances in the instance group:

   yc compute instance-group rolling-restart --all \
     --name <instance_group_name> \
     --folder-name <folder_name>
   

   Where:

   • --name: Instance group name.
   • --folder-name: Name of the folder the instance group belongs to.

   Instance Groups will begin restarting all instances in the group one by one. The restarted instances will change their status to Running.

   Result:

   done (2m43s)
   id: amc65sbgfqeq********
   ...
   status: ACTIVE
   application_load_balancer_state: {}
   

   To restart individual instances in a group, get a list of instances in that group:

   yc compute instance-group list-instances \
     --name <instance_group_name> \
     --folder-name <folder_name>
   

   Where:

   • --name: Instance group name.
   • --folder-name: Name of the folder the instance group belongs to.

   Result:

   +----------------------+---------------------------+----------------+--------------+------------------------+----------------+
   |     INSTANCE ID      |           NAME            |  EXTERNAL IP   | INTERNAL IP  |         STATUS         | STATUS MESSAGE |
   +----------------------+---------------------------+----------------+--------------+------------------------+----------------+
   | epdl7gdvb69f******** | cl17k72ehu54********-amyk | 130.193.**.*** | 192.168.0.33 | RUNNING_ACTUAL [8m]    |                |
   | epdjtb04efcf******** | cl17k72ehu54********-oper | 84.201.***.*** | 192.168.0.17 | RUNNING_ACTUAL [6m]    |                |
   | epd3anghn4vb******** | cl17k72ehu54********-axec | 84.201.***.*** | 192.168.0.14 | RUNNING_ACTUAL [1m50s] |                |
   | epdbt0c7o6d3******** | cl17k72ehu54********-ihez | 51.250.***.*** | 192.168.0.29 | RUNNING_ACTUAL [1m0s]  |                |
   +----------------------+---------------------------+----------------+--------------+------------------------+----------------+
   

   Restart the VM instances in question:

   yc compute instance-group rolling-restart \
     --instance-ids <VM_instance_IDs> \
     --name <instance_group_name> \
     --folder-name <folder_name>
   

   Where:

   • --instance-ids: Comma-separated IDs of instances to restart. For example, to restart the first and third instances from those listed, specify --instance-ids epdl7gdvb69f********,epd3anghn4vb********.
   • --name: Instance group name.
   • --folder-name: Name of the folder the instance group belongs to.

   Instance Groups will begin restarting the specified instances in the group one by one. The restarted instances will change their status to Running.

For more information about the yc compute instance-group rolling-restart command parameters, see the CLI reference.