kubeflow istio authtication

// previously, please refer to: https://gist.github.com/hsinhoyeh/c5f60b4cbe41a1e6478ae5ea10f47497
// ref: https://www.kubeflow.org/docs/started/k8s/kfctl-istio-dex/ 
// modification:
// 1. remove istio related as we already have one during the previous step
// 2. change clusteradmin to admin@kubeflow.org instead of using anonymous

cat kfctl_istio_dex.v1.0.2.yaml
```
apiVersion: kfdef.apps.kubeflow.org/v1
kind: KfDef
metadata:
  annotations:
    kfctl.kubeflow.io/force-delete: "false"
  clusterName: minikube
  creationTimestamp: null
  name: my-kubeflow
  namespace: kubeflow
spec:
  applications:
  - kustomizeConfig:
      repoRef:
        name: manifests
        path: application/application-crds
    name: application-crds
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: application/application
    name: application
  - kustomizeConfig:
      parameters:
      - name: clusterRbacConfig
        value: "ON"
      repoRef:
        name: manifests
        path: istio/istio
    name: istio
  - kustomizeConfig:
      parameters:
      - name: namespace
        value: cert-manager
      repoRef:
        name: manifests
        path: cert-manager/cert-manager-crds
    name: cert-manager-crds
  - kustomizeConfig:
      parameters:
      - name: namespace
        value: kube-system
      repoRef:
        name: manifests
        path: cert-manager/cert-manager-kube-system-resources
    name: cert-manager-kube-system-resources
  - kustomizeConfig:
      overlays:
      - self-signed
      - application
      parameters:
      - name: namespace
        value: cert-manager
      repoRef:
        name: manifests
        path: cert-manager/cert-manager
    name: cert-manager
  - kustomizeConfig:
      overlays:
      - application
      parameters:
      - name: namespace
        value: istio-system
      - name: userid-header
        value: kubeflow-userid
      - name: oidc_provider
        value: http://dex.auth.svc.cluster.local:5556/dex
      - name: oidc_redirect_uri
        value: /login/oidc
      - name: oidc_auth_url
        value: /dex/auth
      - name: skip_auth_uri
        value: /dex
      - name: client_id
        value: kubeflow-oidc-authservice
      repoRef:
        name: manifests
        path: istio/oidc-authservice
    name: oidc-authservice
  - kustomizeConfig:
      overlays:
      - istio
      parameters:
      - name: namespace
        value: auth
      - name: issuer
        value: http://dex.auth.svc.cluster.local:5556/dex
      - name: client_id
        value: kubeflow-oidc-authservice
      - name: oidc_redirect_uris
        value: '["/login/oidc"]'
      - name: static_email
        value: admin@kubeflow.org
      - name: static_password_hash
        value: $2y$12$ruoM7FqXrpVgaol44eRZW.4HWS8SAvg6KYVVSCIwKQPBmTpCm.EeO
      repoRef:
        name: manifests
        path: dex-auth/dex-crds
    name: dex
  - kustomizeConfig:
      overlays:
      - istio
      - application
      repoRef:
        name: manifests
        path: argo
    name: argo
  - kustomizeConfig:
      repoRef:
        name: manifests
        path: kubeflow-roles
    name: kubeflow-roles
  - kustomizeConfig:
      overlays:
      - istio
      - application
      parameters:
      - name: userid-header
        value: kubeflow-userid
      repoRef:
        name: manifests
        path: common/centraldashboard
    name: centraldashboard
  - kustomizeConfig:
      overlays:
      - cert-manager
      - application
      repoRef:
        name: manifests
        path: admission-webhook/webhook
    name: webhook
  - kustomizeConfig:
      overlays:
      - istio
      - application
      parameters:
      - name: userid-header
        value: kubeflow-userid
      repoRef:
        name: manifests
        path: jupyter/jupyter-web-app
    name: jupyter-web-app
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: spark/spark-operator
    name: spark-operator
  - kustomizeConfig:
      overlays:
      - istio
      - application
      - db
      repoRef:
        name: manifests
        path: metadata
    name: metadata
  - kustomizeConfig:
      overlays:
      - istio
      - application
      repoRef:
        name: manifests
        path: jupyter/notebook-controller
    name: notebook-controller
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: pytorch-job/pytorch-job-crds
    name: pytorch-job-crds
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: pytorch-job/pytorch-operator
    name: pytorch-operator
  - kustomizeConfig:
      overlays:
      - application
      parameters:
      - name: namespace
        value: knative-serving
      repoRef:
        name: manifests
        path: knative/knative-serving-crds
    name: knative-crds
  - kustomizeConfig:
      overlays:
      - application
      parameters:
      - name: namespace
        value: knative-serving
      repoRef:
        name: manifests
        path: knative/knative-serving-install
    name: knative-install
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: kfserving/kfserving-crds
    name: kfserving-crds
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: kfserving/kfserving-install
    name: kfserving-install
  - kustomizeConfig:
      overlays:
      - application
      parameters:
      - name: usageId
        value: <randomly-generated-id>
      - name: reportUsage
        value: "true"
      repoRef:
        name: manifests
        path: common/spartakus
    name: spartakus
  - kustomizeConfig:
      overlays:
      - istio
      repoRef:
        name: manifests
        path: tensorboard
    name: tensorboard
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: tf-training/tf-job-crds
    name: tf-job-crds
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: tf-training/tf-job-operator
    name: tf-job-operator
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: katib/katib-crds
    name: katib-crds
  - kustomizeConfig:
      overlays:
      - application
      - istio
      repoRef:
        name: manifests
        path: katib/katib-controller
    name: katib-controller
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: pipeline/api-service
    name: api-service
  - kustomizeConfig:
      overlays:
      - application
      parameters:
      - name: minioPvcName
        value: minio-pv-claim
      repoRef:
        name: manifests
        path: pipeline/minio
    name: minio
  - kustomizeConfig:
      overlays:
      - application
      parameters:
      - name: mysqlPvcName
        value: mysql-pv-claim
      repoRef:
        name: manifests
        path: pipeline/mysql
    name: mysql
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: pipeline/persistent-agent
    name: persistent-agent
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: pipeline/pipelines-runner
    name: pipelines-runner
  - kustomizeConfig:
      overlays:
      - istio
      - application
      repoRef:
        name: manifests
        path: pipeline/pipelines-ui
    name: pipelines-ui
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: pipeline/pipelines-viewer
    name: pipelines-viewer
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: pipeline/scheduledworkflow
    name: scheduledworkflow
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: pipeline/pipeline-visualization-service
    name: pipeline-visualization-service
  - kustomizeConfig:
      overlays:
      - application
      - istio
      parameters:
      - name: userid-header
        value: kubeflow-userid
      - name: admin
        value: admin@kubeflow.org // use admin@ instead of anonymous
      repoRef:
        name: manifests
        path: profiles
    name: profiles
  - kustomizeConfig:
      overlays:
      - application
      repoRef:
        name: manifests
        path: seldon/seldon-core-operator
    name: seldon-core-operator
  repos:
  - name: manifests
    uri: https://github.com/kubeflow/manifests/archive/v1.0.2.tar.gz
  version: v1.0.2
status:
  reposCache:
  - localPath: '".cache/manifests/manifests-1.0.2"'
    name: manifests
```