OCI Cloud Provider Update (#4186)

* OCI subnet AD 2 is not required for CCM >= 0.7.0

Reorganize OCI provider to generate configuration, rather than pull

Add pull secret option to OCI cloud provider

* Updated oci example to document new parameters

roles/kubernetes-apps/cluster_roles/files/oci-rbac.yml

@@ -0,0 +1,126 @@
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: cloud-controller-manager
+  namespace: kube-system
+---
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRole
+metadata:
+  name: system:cloud-controller-manager
+  labels:
+    kubernetes.io/cluster-service: "true"
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - nodes
+  verbs:
+  - '*'
+
+- apiGroups:
+  - ""
+  resources:
+  - nodes/status
+  verbs:
+  - patch
+
+- apiGroups:
+  - ""
+  resources:
+  - services
+  verbs:
+  - list
+  - watch
+  - patch
+
+- apiGroups:
+  - ""
+  resources:
+  - services/status
+  verbs:
+  - update
+
+- apiGroups:
+  - ""
+  resources:
+  - events
+  verbs:
+  - create
+  - patch
+  - update
+
+# For leader election
+- apiGroups:
+  - ""
+  resources:
+  - endpoints
+  verbs:
+  - create
+
+- apiGroups:
+  - ""
+  resources:
+  - endpoints
+  resourceNames:
+  - "cloud-controller-manager"
+  verbs:
+  - get
+  - list
+  - watch
+  - update
+
+- apiGroups:
+  - ""
+  resources:
+  - configmaps
+  verbs:
+  - create
+
+- apiGroups:
+  - ""
+  resources:
+  - configmaps
+  resourceNames:
+  - "cloud-controller-manager"
+  verbs:
+  - get
+  - update
+
+- apiGroups:
+  - ""
+  resources:
+  - serviceaccounts
+  verbs:
+  - create
+- apiGroups:
+  - ""
+  resources:
+  - secrets
+  verbs:
+  - get
+  - list
+
+# For the PVL
+- apiGroups:
+  - ""
+  resources:
+  - persistentvolumes
+  verbs:
+  - list
+  - watch
+  - patch
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1beta1
+metadata:
+  name: oci-cloud-controller-manager
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: system:cloud-controller-manager
+subjects:
+- kind: ServiceAccount
+  name: cloud-controller-manager
+  namespace: kube-system