Chapter 16. Change resources on virtual machines using director Operator

Procedure

1. Change the number of Controller virtualMachineRole cores to 8:

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   $ oc patch -n openstack osctlplane overcloud --type='json' -p='[{"op": "add", "path": "/spec/virtualMachineRoles/controller/cores", "value": 8 }]'

2. Change the Controller virtualMachineRole RAM size to 22GB:

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   $ oc patch -n openstack osctlplane overcloud --type='json' -p='[{"op": "add", "path": "/spec/virtualMachineRoles/controller/memory", "value": 22 }]'

3. Validate the virtualMachineRole resource:

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   $ oc get osvmset
   NAME         CORES   RAM   DESIRED   READY   STATUS        REASON
   controller   8       22    1         1       Provisioned   All requested VirtualMachines have been provisioned

4. From inside the virtual machine do a graceful shutdown. Shutdown each updated virtual machine one by one.

5. Power on the virtual machine:

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   $ `virtctl start <VM>` to power on the virtual machine.

   • Replace <VM> with the name of your virtual machine.

Procedure

1. Add or update the additionalDisks parameter in the OpenStackControlPlane object:

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   spec:
     ...
     virtualMachineRoles:
       Controller:
         ...
         additionalDisks:
         - baseImageVolumeName: openstack-base-img
           dedicatedIOThread: false
           diskSize: 10
           name: "data-disk1"
           storageAccessMode: ReadWriteMany
           storageClass: host-nfs-storageclass
           storageVolumeMode: Filesystem

2. Apply the patch:

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   $ oc patch -n openstack osctlplane overcloud --patch-file controller_add_data_disk1.yaml

3. Validate the virtualMachineRole resource:

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   $ oc get osvmset controller -o json | jq .spec.additionalDisks
   [
     {
       "baseImageVolumeName": "openstack-base-img",
       "dedicatedIOThread": false,
       "diskSize": 10,
       "name": "data-disk1",
       "storageAccessMode": "ReadWriteMany",
       "storageClass": "host-nfs-storageclass",
       "storageVolumeMode": "Filesystem"
     }
   ]

4. From inside the virtual machine do a graceful shutdown. Shutdown each updated virtual machine one by one.

5. Power on the virtual machine:

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   $ `virtctl start <VM>` to power on the virtual machine.

   • Replace <VM> with the name of your virtual machine.