Objective

• Scale up nginx application using oc scale command
• Scale up nginx application by updating DeploymentConfig
• Scale down nginx application using oc scale command

Step 1: Deploy nginx application. Refer How to manager users & project in OpenShift? blog

Step 2: List pods

oc get pods

Step 3: Scale up nginx application using oc scale command

oc scale dc nginx --replicas=5

oc get pods --watch

Step 4: Scale up nginx application by updating DeploymentConfig

oc edit dc nginx

update replicas = 7

oc get pods --watch

Step 5: Scale down nginx application using oc scale command

oc scale dc nginx --replicas=1

oc get pods --watch