K8s Helm Setup

Enable Helm in cluster

  • Create a Service Account tiller for the Tiller server (in the kube-system namespace). Service Accounts are meant for intra-cluster processes running in Pods.

  • Bind the cluster-admin ClusterRole to this Service Account. ClusterRoleBindings to be applicable in all namespaces. Tiller to manage resources in all namespaces.

  • Update the existing Tiller deployment (tiller-deploy) to associate its pod with the Service Account tiller.

    kubectl create serviceaccount tiller --namespace kube-system
    kubectl create clusterrolebinding tiller-cluster-rule --clusterrole=cluster-admin --serviceaccount=kube-system:tiller
    kubectl patch deploy --namespace kube-system tiller-deploy -p '{"spec":{"template":{"spec":{"serviceAccount":"tiller"}}}}'
    

    or

    cat tiller-clusterrolebinding.yaml
    kind: ClusterRoleBinding
    apiVersion: rbac.authorization.K8S.io/v1beta1
    metadata:
    name: tiller-clusterrolebinding
    subjects:
    - kind: ServiceAccount
    name: tiller
    namespace: kube-system
    roleRef:
    kind: ClusterRole
    name: cluster-admin
    apiGroup: ""
    
    docker pull registry.cn-beijing.aliyuncs.com/k4s/tiller:v2.12.3
    
    kubectl create -f tiller-clusterrolebinding.yaml
    # Update the existing tiller-deploy deployment with the Service Account
    helm init --service-account tiller --upgrade
    

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