kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: aws-iam-authenticator
rules:
- apiGroups:
  - iamauthenticator.k8s.aws
  resources:
  - iamidentitymappings
  verbs:
  - get
  - list
  - watch
- apiGroups:
  - iamauthenticator.k8s.aws
  resources:
  - iamidentitymappings/status
  verbs:
  - patch
  - update
- apiGroups:
  - ""
  resources:
  - events
  verbs:
  - create
  - update
  - patch
- apiGroups:
  - ""
  resources:
  - configmaps
  verbs:
  - list
  - watch
- apiGroups:
  - ""
  resources:
  - configmaps
  resourceNames:
  - aws-auth
  verbs:
  - get

---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: aws-iam-authenticator
  namespace: kube-system

---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: aws-iam-authenticator
  namespace: kube-system
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: aws-iam-authenticator
subjects:
- kind: ServiceAccount
  name: aws-iam-authenticator
  namespace: kube-system

---
apiVersion: v1
kind: ConfigMap
metadata:
  namespace: kube-system
  name: aws-iam-authenticator
  labels:
    k8s-app: aws-iam-authenticator
data:
  config.yaml: |
    clusterID: {{ .Values.clusterName }}

---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  namespace: kube-system
  name: aws-iam-authenticator
  labels:
    k8s-app: aws-iam-authenticator
  annotations:
    seccomp.security.alpha.kubernetes.io/pod: runtime/default
spec:
  selector:
    matchLabels:
      k8s-app: aws-iam-authenticator
  updateStrategy:
    type: RollingUpdate
  template:
    metadata:
      annotations:
        scheduler.alpha.kubernetes.io/critical-pod: ""
      labels:
        k8s-app: aws-iam-authenticator
    spec:
      # use service account with access to
      serviceAccountName: aws-iam-authenticator

      # run on the host network (don't depend on CNI)
      hostNetwork: true

      # run on each master node
      nodeSelector:
        node-role.kubernetes.io/master: ""
      tolerations:
      - effect: NoSchedule
        key: node-role.kubernetes.io/master
      - key: CriticalAddonsOnly
        operator: Exists

      containers:
      - name: aws-iam-authenticator
        image: public.ecr.aws/zero-downtime/aws-iam-authenticator:v0.5.2
        args:
        - server
        - --backend-mode=CRD,MountedFile
        - --config=/etc/aws-iam-authenticator/config.yaml
        - --state-dir=/var/aws-iam-authenticator
        - --kubeconfig-pregenerated=true

        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - ALL

        resources:
          requests:
            memory: 20Mi
            cpu: 10m
          limits:
            memory: 20Mi
            cpu: 100m

        volumeMounts:
        - name: config
          mountPath: /etc/aws-iam-authenticator/
        - name: state
          mountPath: /var/aws-iam-authenticator/

      volumes:
      - name: config
        configMap:
          name: aws-iam-authenticator
      - name: state
        hostPath:
          path: /var/aws-iam-authenticator/