Restarting instances in a group one by one

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 a description of the CLI command to restart 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 instances in the instance group:

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

   Where:

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

   Instance Groups will begin to restart all instances in the group one by one. The status of restarted instances will change 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 this group:

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

   Where:

   • --name: Name of the instance group.
   • --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 instances you need:

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

   Where:

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

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

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