Cluster

Cluster Scale

• Set number of nodes with given instance type

./run_toolbox.py cluster set_scale <machine-type> <replicas> [--base_machineset=BASE_MACHINESET]

Example usage:

# Set the total number of g4dn.xlarge nodes to 2
./run_toolbox.py cluster set_scale g4dn.xlarge 2

   # Set the total number of g4dn.xlarge nodes to 5,
   # even when there are some machinesets that might need to be downscaled
   # to 0 to achive that.
   ./run_toolbox.py cluster set_scale g4dn.xlarge 5 --force

.. code-block:: shell

   # list the machinesets of the cluster
   $ oc get machinesets -n openshift-machine-api

   NAME                                      DESIRED   CURRENT   READY   AVAILABLE   AGE
   playground-8p9vm-worker-eu-central-1a      1         1         1       1           57m
   playground-8p9vm-worker-eu-central-1b      1         1         1       1           57m
   playground-8p9vm-worker-eu-central-1c      0         0                             57m

   # Set the total number of m5.xlarge nodes to 1
   # using 'playground-8p9vm-worker-eu-central-1c' to derive the new machineset
   ./run_toolbox.py cluster set_scale m5.xlarge 1 --base_machineset=playground-8p9vm-worker-eu-central-1c