Added support for webhook authentication/authorization on the secure kubelet endpoint

roles/kubernetes-apps/cluster_roles/tasks/main.yml

@@ -29,6 +29,52 @@
     - rbac_enabled
     - node_crb_manifest.changed
 
+- name: Kubernetes Apps | Add webhook ClusterRole that grants access to proxy, stats, log, spec, and metrics on a kubelet
+  template:
+    src: "node-webhook-cr.yml.j2"
+    dest: "{{ kube_config_dir }}/node-webhook-cr.yml"
+  register: node_webhook_cr_manifest
+  when:
+    - rbac_enabled
+    - kubelet_authorization_mode_webhook
+  tags: node-webhook
+
+- name: Apply webhook ClusterRole
+  kube:
+    name: "system:node-webhook"
+    kubectl: "{{bin_dir}}/kubectl"
+    resource: "clusterrole"
+    filename: "{{ kube_config_dir }}/node-webhook-cr.yml"
+    state: latest
+  when:
+    - rbac_enabled
+    - kubelet_authorization_mode_webhook
+    - node_webhook_cr_manifest.changed
+  tags: node-webhook
+
+- name: Kubernetes Apps | Add ClusterRoleBinding for system:nodes to webhook ClusterRole
+  template:
+    src: "node-webhook-crb.yml.j2"
+    dest: "{{ kube_config_dir }}/node-webhook-crb.yml"
+  register: node_webhook_crb_manifest
+  when:
+    - rbac_enabled
+    - kubelet_authorization_mode_webhook
+  tags: node-webhook
+
+- name: Grant system:nodes the webhook ClusterRole
+  kube:
+    name: "system:node-webhook"
+    kubectl: "{{bin_dir}}/kubectl"
+    resource: "clusterrolebinding"
+    filename: "{{ kube_config_dir }}/node-webhook-crb.yml"
+    state: latest
+  when:
+    - rbac_enabled
+    - kubelet_authorization_mode_webhook
+    - node_webhook_crb_manifest.changed
+  tags: node-webhook
+
 # This is not a cluster role, but should be run after kubeconfig is set on master
 - name: Write kube system namespace manifest
   template:

roles/kubernetes-apps/cluster_roles/templates/node-webhook-cr.yml.j2

@@ -0,0 +1,19 @@
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRole
+metadata:
+  annotations:
+    rbac.authorization.kubernetes.io/autoupdate: "true"
+  labels:
+    kubernetes.io/bootstrapping: rbac-defaults
+  name: system:node-webhook
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - nodes/proxy
+      - nodes/stats
+      - nodes/log
+      - nodes/spec
+      - nodes/metrics
+    verbs:
+      - "*"

roles/kubernetes-apps/cluster_roles/templates/node-webhook-crb.yml.j2

@@ -0,0 +1,17 @@
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  annotations:
+    rbac.authorization.kubernetes.io/autoupdate: "true"
+  labels:
+    kubernetes.io/bootstrapping: rbac-defaults
+  name: system:node-webhook
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: system:node-webhook
+subjects:
+- apiGroup: rbac.authorization.k8s.io
+  kind: Group
+  name: system:nodes