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manager_auth_proxy_patch.go
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manager_auth_proxy_patch.go
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/*
Copyright 2020 The Kubernetes Authors.
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.
*/
package kdefault
import (
"path/filepath"
"sigs.k8s.io/kubebuilder/v3/pkg/machinery"
)
var _ machinery.Template = &ManagerAuthProxyPatch{}
// ManagerAuthProxyPatch scaffolds a file that defines the patch that enables prometheus metrics for the manager
type ManagerAuthProxyPatch struct {
machinery.TemplateMixin
machinery.ComponentConfigMixin
}
// SetTemplateDefaults implements file.Template
func (f *ManagerAuthProxyPatch) SetTemplateDefaults() error {
if f.Path == "" {
f.Path = filepath.Join("config", "default", "manager_auth_proxy_patch.yaml")
}
f.TemplateBody = kustomizeAuthProxyPatchTemplate
f.IfExistsAction = machinery.Error
return nil
}
const kustomizeAuthProxyPatchTemplate = `# 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
image: gcr.io/kubebuilder/kube-rbac-proxy:v0.8.0
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
{{- if not .ComponentConfig }}
- name: manager
args:
- "--health-probe-bind-address=:8081"
- "--metrics-bind-address=127.0.0.1:8080"
- "--leader-elect"
{{- end }}
`