docs/doc/source/dist_cloud/kubernetes/manage-subcloud-management-network-parameters-ffde7da356dc.rst

Manage Subcloud Management Network Parameters

You can change the management IP addresses for an subcloud.

• Ensure that the subcloud has been backed up, in case a subcloud system recovery is required.

• Ensure that the system time between system controllers and the subclouds are synchronized.

  ~(keystone_admin)]$ date -u

  If the time is not correct either on the system controllers or the subclouds, check the clock_synchronization configuration on the system.

  ~(keystone_admin)]$ system host-show controller-0

  Check the server configuration or server configuration sections to correct the system time based on the system's clock_synchronization configuration ( or ).

Change the Network Parameters of the Management Network for AIO-SX Subcloud Only

This task is required only if the management network needs to be changed for an subcloud.

1. Lock the controller.

   system host-lock controller-0

2. Obtain the UUID of the management pool.

   system addrpool-list

3. Modify the management address pool.

   For example:

   system addrpool-modify <uuid> \
     --network              192.168.103.0 \
     --prefix                    26 \
     --floating-address         192.168.103.2 \
     --controller0-address  192.168.103.3 \
     --controller1-address  192.168.103.4 \
     --gateway-address       192.168.103.1 \
     --ranges                192.168.103.1-192.168.103.50

4. Unlock the controller.

   system host-unlock controller-0

5. Wait for the subcloud to recover and to have all alarms cleared.

6. On the system controller, perform the following:

   1. Unmanage the subcloud.

      ~(keystone_admin)]$ dcmanager subcloud unmanage <subcloud-name>

   2. Update the subcloud with the new subnet parameters.

      For example:

      ~(keystone_admin)]$ dcmanager subcloud update --management-subnet 192.168.103.0/26 --management-gateway-ip 192.168.103.1 --management-start-ip 192.168.103.2 --management-end-ip 192.168.103.5 --bootstrap-address 10.33.1.3 <subcloud-name>

   3. Manage the subcloud.

      ~(keystone_admin)]$ dcmanager subcloud manage <subcloud-name>