infrastructure-management-zookeeper-0 pod is not Ready on the Red Hat OpenShift on IBM Cloud cluster

You might notice that the infrastructure-management-zookeeper pod is not in Ready status on Red Hat OpenShift on IBM Cloud cluster.

The issue might happen because infrastructure-management-zookeeper pod requires more cpu and memory to start on a Red Hat OpenShift on IBM Cloud cluster.

Solution: Use the following steps to fix the failed pod issue:

1. Change to the Infrastructure Automation namespace.

   oc project <IANamespace>
   

   Where IANamespaceis the namespace where Infrastructure Automation is installed.

   Note: If IBM Cloud Pak for AIOps is also installed, then use the IBM Cloud Pak for AIOps namespace in the command.

2. Get the name of iminstall custom resource:

   oc get iminstall --no-headers | awk '{print $2}'
   

3. Make a copy of the existing iminstall custom resource by using the command:

   oc get iminstall <iminstall CR name> -o yaml > <iminstall CR name>.orig
   

   Where <iminstall CR name> is the name of iminstall custom resource.

4. Delete the iminstall custom resource:

   oc delete iminstall <iminstall CR name>
   

   Where <iminstall CR name> is the name of iminstall custom resource.

5. Edit the iminstall custom resource file by using the command:

   vi <iminstall CR name>.orig
   

   Where <iminstall CR name> is the name of iminstall custom resource.

6. Remove the following lines from iminstall custom resource:

   finalizers:
      - infra.management.install.finalizer.infra.management.ibm.com
   resourceVersion: "3023054"
   uid: c790e781-07a3-46d7-bf20-5e1acc1ba2ad
   

   Note: You might have different values for the mentioned properties.

7. Add the following variables to the iminstall custom resource:

   spec:
     zookeeperCpuRequest: 400m
     zookeeperCpulimit: 500m
     zookeeperMemoryRequest: 400Mi
   

   **Note:**if you are using IAConfig to create the iminstall custom resource then, you can add the following environment variables to the IAConfig custom resource.

   name: ibm-management-im-install
   spec:
     iminstall:
       applicationDomain: inframgmtinstall.<your_env_domain>
       imagePullPolicy: Always
       imagePullSecret: ibm-entitlement-key
       initialAdminGroupName: <your_admin_group>
       zookeeperCpuRequest: 400m
       zookeeperCpulimit: 500m
       zookeeperMemoryRequest: 400Mi
       license:
         accept: true
   

8. Apply the iminstall custom resource by using the command:

   oc apply -f <iminstall CR name>.orig
   

   Where <iminstall CR name> is the name of iminstall custom resource.