Scaling the Number of Pod Replicas
Although most deployment and deployment configuration resources start with creating a single pod, the number of replicas (or copies) of a pod is frequently increased. This is accomplished by scaling the deployment or deployment configuration.
Multiple methods for scaling will be covered later, but one method uses the oc scale command. For example, the number of pods in the myapp deployment can be scaled to three using the following command:
oc scale --replicas 3 deployment/myapp