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Why is my Portieris cluster image security enforcement installation canceled?

Why is my Portieris cluster image security enforcement installation canceled?

Virtual Private Cloud Classic infrastructure

Portieris image security enforcement add-on does not install. You see a master status similar to the following:

Image security enforcement update cancelled. CAE008: can't enable Portieris image security enforcement because the cluster already has a conflicting image admission controller installed. For more information, see the troubleshooting docs: 'https://ibm.biz/portieris_enable'

Your cluster has a conflicting image admission controller already installed, which prevents the image security enforcement cluster add-on from installing.

When you have more than one image admission controller in your cluster, pods might not run.

Potential conflicting image admission controller sources include:

  • The deprecated container image security enforcement Helm chart.
  • A previous manual installation of the open source Portieris project.

Identify and remove the conflicting image admission controller.

  1. Check for existing image admission controllers.

    • Check if you have an existing container image security enforcement deployment in your cluster. If no output is returned, you don't have the deployment.
      oc get deploy cise-ibmcloud-image-enforcement -n ibm-system
      
      Example output
      NAME                              READY   UP-TO-DATE   AVAILABLE   AGE
      cise-ibmcloud-image-enforcement   3/3     3            3           129m
      
    • Check if you have an existing Portieris deployment in your cluster. If no output is returned, you don't have the deployment.
      oc get deployment --all-namespaces -l app=portieries
      
      Example output
      NAMESPACE     NAME        READY   UP-TO-DATE   AVAILABLE   AGE
      portieris     portieris   3/3     3            3           8m8s
      
  2. Uninstall the conflicting deployment.

    oc delete deployment <deployment> -n <namespace>
    
  3. Confirm that conflicting admission controllers are removed by checking that the cluster no longer has a mutating webhook configuration for an image admission controller.

    oc get MutatingWebhookConfiguration image-admission-config
    

    Example output

    Error from server (NotFound): mutatingwebhookconfigurations.admissionregistration.k8s.io "image-admission-config" not found
    
  4. Retry the installing the add-on by running the ibmcloud oc cluster image-security enable command.