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    Error: rendered manifests contain a resource that already exists. Unable to continue with install

    We get this  error while installing ISTIO and Installation did not continue.

    istio


    Error:


    [root@k8smaster istio-1.4.3]# helm install istio-init install/kubernetes/helm/istio-init --namespace istio-system
    Error: rendered manifests contain a resource that already exists. Unable to continue with install: existing resource conflict: namespace: , name: istio-init-istio-system, existing_kind: rbac.authorization.k8s.io/v1, Kind=ClusterRole, new_kind: rbac.authorization.k8s.io/v1, Kind=ClusterRole
    [root@k8smaster istio-1.4.3]#

    Solution:


    We need to find out the resource that is conflicting. Then delete that resource. In our case it was a ClusterRole resource. So we checked that and deleted that to continue our installation.

    [root@k8smaster istio-1.4.3]# kubectl get ClusterRole | grep -i istio-init-istio-system
    istio-init-istio-system                                                43m

    [root@k8smaster istio-1.4.3]# kubectl delete ClusterRole istio-init-istio-system
    clusterrole.rbac.authorization.k8s.io "istio-init-istio-system" deleted
    [root@k8smaster istio-1.4.3]#


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