How can I get an installation of k3s working with KubeApps?



  • How can I get an install of KubeApps running on K3s? What are the minimal required steps?



  • Installing k3s and kubeapps

    1. Install k3s, ( https://rancher.com/docs/k3s/latest/en/installation/ )

      curl -sfL https://get.k3s.io | sh -
      
    2. Add KUBECONFIG for user. ( https://devops.stackexchange.com/q/16043/18965 )

      export KUBECONFIG=~/.kube/config
      mkdir ~/.kube 2> /dev/null
      sudo k3s kubectl config view --raw > "$KUBECONFIG"
      chmod 600 "$KUBECONFIG"
      
    3. Install Helm, ( https://helm.sh/docs/intro/install/ )

      curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash
      
    4. Setup Kubeapps, ( https://kubeapps.dev/ )

      1. Install Kubeapps

        helm repo add bitnami https://charts.bitnami.com/bitnami
        helm repo update
        helm install -n kubeapps --create-namespace kubeapps bitnami/kubeapps
        
      2. Configure Kubeapps

        kubectl create --namespace default serviceaccount kubeapps-operator
        

        kubectl create clusterrolebinding kubeapps-operator --clusterrole=cluster-admin --serviceaccount=default:kubeapps-operator

        cat <<EOF | kubectl apply -f -
        apiVersion: v1
        kind: Secret
        metadata:
        name: kubeapps-operator-token
        namespace: default
        annotations:
        kubernetes.io/service-account.name: kubeapps-operator
        type: kubernetes.io/service-account-token
        EOF

        kubectl get --namespace default secret kubeapps-operator-token -o jsonpath='{.data.token}' -o go-template='{{.data.token | base64decode}}' && echo

      3. Play (note we have a slight modification with https://devops.stackexchange.com/a/16106/18965 )

        kubectl port-forward -n kubeapps --address 0.0.0.0 svc/kubeapps 8080:80
        

    Removal

    sudo k3s-uninstall.sh
    

    Remove helm, and caches

    sudo rm -rf /usr/local/bin/helm ~/.cache/helm /root/.cache/helm

    Remove logs

    sudo rm -rf /var/log/pods/

    Your own cluster config/keys/kubeconfig

    sudo rm -rf ~/.kube


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