Uploaded image for project: 'Red Hat Advanced Cluster Management'
  1. Red Hat Advanced Cluster Management
  2. ACM-10551

Add known issue - Topology for appsub deployed on OCP 311 not shown correctly in UI

XMLWordPrintable

    • False
    • None
    • False
    • No

      Create an informative issue (See each section, incomplete templates/issues won't be triaged)

      Using the current documentation as a model, please complete the issue template. 

      Note: Doc team updates the current version and the two previous versions (n-2). For earlier versions, we will address only high-priority, customer-reported issues for releases in support.

      Prerequisite: Start with what we have

      Always look at the current documentation to describe the change that is needed. Use the source or portal link for Step 4:

       - Use the Customer Portal: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes

       - Use the GitHub link to find the staged docs in the repository: https://github.com/stolostron/rhacm-docs 

      Describe the changes in the doc and link to your dev story

      Provide info for the following steps:

      1. - [X] Mandatory Add the required version to the Fix version/s field.

      2. - [X] Mandatory Choose the type of documentation change.

            - [X] New topic in an existing section or new section
            - [ ] Update to an existing topic

      3. - [X] Mandatory for GA content:
                  
             - [X] Add steps and/or other important conceptual information here: 
             Add new known issue to Application known issues https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.9/html/release_notes/release-notes#known-issues-applications

      Title: Subscription applications deployed on OCP 3.11 clusters will not display correctly on the topology

      Content:

      After you create a subscription application that targets an OCP 3.11 cluster, the application topology will not display correctly for `ReplicaSet` and `Pod` resources. This is due to a bug in Kubernetes where the `pod-template-hash` does not match the hash in the `ReplicaSet` or `Pod` resource name. This bug was fixed in later Kubernetes versions but was not picked up by OCP 3.11.
                  
             - [ ] Add Required access level for the user to complete the task here:
             

             - [ ] Add verification at the end of the task, how does the user verify success (a command to run or a result to see?)
           
           
             - [ ] Add link to dev story here:

      4. - [ ] Mandatory for bugs: What is the diff? Clearly define what the problem is, what the change is, and link to the current documentation:

       

      When deploying an appsub on OCP 311 managed cluster, the topology may not correctly reflect the status of resources, for example, pod / replicaset is not reflecting the correct status. Rources can be found on the backend, eg

      managed cluster: 
      
      ➜  oc get pod -n test-helloworld
      NAME                                     READY   STATUS    RESTARTS   AGE
      helloworld-app-deploy-596765ff66-ndrv8   1/1     Running   0          20m
      
      
      ➜  oc get replicaset -n test-helloworld
      NAME                               DESIRED   CURRENT   READY   AGE
      helloworld-app-deploy-596765ff66   1         1         1       20m 

      The problem is that the pod-template-hash does not match the hash in the ReplicaSet/Pod name, which due to an older Kubernetes version that OCP 3.11 didn't pick up. 
       
       Kubernetes bug reference: https://github.com/kubernetes/kubernetes/issues/55346

        1. image (5).png
          image (5).png
          181 kB
        2. image (6).png
          image (6).png
          125 kB

            bswope@redhat.com Brandi Swope
            rhn-support-ruhong Ruici Hong
            ACM QE Team
            Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

              Created:
              Updated:
              Resolved: