2.2. Scaling a machine set manually
If you must add or remove an instance of a machine in a machine set, you can manually scale the machine set.
This guidance is relevant to fully automated, installer-provisioned infrastructure installations. Customized, user-provisioned infrastructure installations does not have machine sets.
Prerequisites
-
Install an OpenShift Container Platform cluster and the
occommand line. -
Log in to
ocas a user withcluster-adminpermission.
Procedure
View the machine sets that are in the cluster:
$ oc get machinesets -n openshift-machine-api
The machine sets are listed in the form of
<clusterid>-worker-<aws-region-az>.Scale the machine set:
$ oc scale --replicas=2 machineset <machineset> -n openshift-machine-api
Or:
$ oc edit machineset <machineset> -n openshift-machine-api
You can scale the machine set up or down. It takes several minutes for the new machines to be available.
