Kubernetes Dashboard login with cluster-admin role

dashboard.yaml

# Create service and assign cluster-admin role
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: dashboard-admin
  namespace: kube-system
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: dashboard-cluster-rule
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:                              
- kind: ServiceAccount
  name: dashboard-admin
  namespace: kube-system
---

# Now find newly created secrets and find service token as follows
$ kubectl get secrets -n kube-system  | grep dashboard-admin
dashboard-admin-token-5dtnk                      kubernetes.io/service-account-token   3         4m

$ kubectl describe secrets dashboard-admin-token-5dtnk  -n kube-system
```
Name:         dashboard-admin-token-5dtnk
Namespace:    kube-system
Labels:       <none>
Annotations:  kubernetes.io/service-account.name=dashboard-admin
              kubernetes.io/service-account.uid=6ca26bdf-7a1c-11e8-a4b9-ea63d16507ef

Type:  kubernetes.io/service-account-token

Data
====
ca.crt:     1196 bytes
namespace:  11 bytes
token:      eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.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.o008LTikkJ2KBIaY3ZW9Jy0sAy49Wk0JC9m25ZTvXGZ1eqUkDgwpRTsbL6mL1UrJ-lLjENhqoiT0fXwLLOjUB0awDyEGl-Pd9ufBmrGWbx-AN7wUuvjJInd2w0h-qwb5-miSM2zJ-nVCaCrfgaHzis2vMTvDj2659CpY8ZXd_dGpQEFI_OIqWgM4nqmGDOvDtl1ybGngdWhryJlMA2lKDsMrZ9joy8MVmalFWzcbESEoMuLhBsXsITRGVehTANVmaYCFhLj6OlbNQ6KYGJlHey13O8GofrLkAd5Gc14WCgGw8vzqHEmOJtn51fR0KBuKquyV__O4gKSdvydgsxQ6wg
```
# Copy paste token value in dashboard ui.