Replace deprecated DeploymentConfigs with deployments

Learning path | 3 resources | 35 mins | Published on July 16, 2024
Don Schenck

Learn how to convert existing DeploymentConfigs into Kubernetes Deployments in Red Hat OpenShift.

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  1. Overview: Replace deprecated DeploymentConfigs with Deployments
  2. Create an application using a DeploymentConfig Page | 15 mins
  3. Convert a DeploymentConfig into a Deployment Page | 20 mins

Overview: Replace deprecated DeploymentConfigs with Deployments

Replacing deprecated DeploymentConfigs with Deployments

As Red Hat OpenShift matures, changes are inevitable. One such change is the deprecation of DeploymentConfig objects. This aligns with the common Kubernetes method of creating an application by using a Deployment. 

While the DeploymentConfig is deprecated, it is still supported. But for how long? It might be in your best interest to convert existing DeploymentConfig objects into Deployments to stay ahead of any breaking changes in the future.

To execute this learning path, you will need:

  • Familiarity with Deployments in OpenShift
  • Access to an OpenShift cluster.
  • Access to the command line.

In this learning path, you will learn how to:

  • Create an application using a DeploymentConfig.
  • Generate a YAML file on your local PC using the DeploymentConfig that you created.
  • Reference an ImageStream object in your Deployment.
  • Alter a DeploymentConfig into a Deployment.
  • Redeploy the application using the newly created deployment YAML file.