config/default/manager_auth_proxy_patch.yaml

# Copyright 2022 Google LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This patch inject a sidecar container which is a HTTP proxy for the
# controller manager, it performs RBAC authorization against the Kubernetes API using SubjectAccessReviews.
apiVersion: apps/v1
kind: Deployment
metadata:
  name: controller-manager
  namespace: system
spec:
  template:
    spec:
      containers:
        - name: kube-rbac-proxy
          securityContext:
            allowPrivilegeEscalation: false
            capabilities:
              drop:
                - "ALL"
          image: gcr.io/kubebuilder/kube-rbac-proxy:v0.13.0
          args:
            - "--secure-listen-address=0.0.0.0:8443"
            - "--upstream=http://127.0.0.1:8080/"
            - "--logtostderr=true"
            - "--v=0"
          ports:
            - containerPort: 8443
              protocol: TCP
              name: https
          resources:
            limits:
              cpu: 500m
              memory: 128Mi
            requests:
              cpu: 5m
              memory: 64Mi
        - name: manager
          args:
            - "--health-probe-bind-address=:8081"
            - "--metrics-bind-address=127.0.0.1:8080"
            - "--leader-elect"