Add bootstrapping scripts and nix expressions

bootstrap/config/cluster-auth-rbac.yaml

@@ -0,0 +1,44 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: cluster-admin
+  namespace: kube-system
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: cluster-admin
+roleRef:
+  kind: ClusterRole
+  name: cluster-admin
+  apiGroup: rbac.authorization.k8s.io
+subjects:
+- kind: ServiceAccount
+  namespace: kube-system
+  name: cluster-admin
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: system-default
+roleRef:
+  kind: ClusterRole
+  name: cluster-admin
+  apiGroup: rbac.authorization.k8s.io
+subjects:
+- kind: ServiceAccount
+  namespace: kube-system
+  name: default
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: kubernetes
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: cluster-admin
+subjects:
+- apiGroup: rbac.authorization.k8s.io
+  kind: User
+  name: kubernetes