How to scale an application in OpenShift?

01 Apr 2020 » openshift

Objective

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

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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

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