mirror of
https://github.com/wahyd4/cert-manager.git
synced 2026-08-24 20:47:12 +10:00
Solly Ross
42248a91d7
This implements a CA injector controller using controller-runtime. It looks at admission webhooks and APIServices with a particular annotation, and injects the CA data from certificates. Signed-off-by: Solly Ross <sollyross@google.com>
100 lines
3.2 KiB
Go
100 lines
3.2 KiB
Go
/*
|
|
Copyright 2019 The Jetstack cert-manager contributors.
|
|
|
|
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 cainjector
|
|
|
|
import (
|
|
admissionreg "k8s.io/api/admissionregistration/v1beta1"
|
|
corev1 "k8s.io/api/core/v1"
|
|
runtime "k8s.io/apimachinery/pkg/runtime"
|
|
apireg "k8s.io/kube-aggregator/pkg/apis/apiregistration/v1"
|
|
ctrl "sigs.k8s.io/controller-runtime"
|
|
"sigs.k8s.io/controller-runtime/pkg/handler"
|
|
"sigs.k8s.io/controller-runtime/pkg/source"
|
|
|
|
certmanager "github.com/jetstack/cert-manager/pkg/apis/certmanager/v1alpha1"
|
|
)
|
|
|
|
// injectorSet describes a particular setup of the injector controller
|
|
type injectorSetup struct {
|
|
resourceName string
|
|
injector CertInjector
|
|
listType runtime.Object
|
|
}
|
|
|
|
var (
|
|
MutatingWebhookSetup = injectorSetup{
|
|
resourceName: "mutatingwebhookconfiguration",
|
|
injector: mutatingWebhookInjector{},
|
|
listType: &admissionreg.MutatingWebhookConfigurationList{},
|
|
}
|
|
|
|
ValidatingWebhookSetup = injectorSetup{
|
|
resourceName: "validatingwebhookconfiguration",
|
|
injector: validatingWebhookInjector{},
|
|
listType: &admissionreg.ValidatingWebhookConfigurationList{},
|
|
}
|
|
|
|
APIServiceSetup = injectorSetup{
|
|
resourceName: "apiservice",
|
|
injector: apiServiceInjector{},
|
|
listType: &apireg.APIServiceList{},
|
|
}
|
|
|
|
injectorSetups = []injectorSetup{MutatingWebhookSetup, ValidatingWebhookSetup, APIServiceSetup}
|
|
ControllerNames []string
|
|
)
|
|
|
|
// Register registers an injection controller with the given manager, and adds relevant indicies.
|
|
func Register(mgr ctrl.Manager, setup injectorSetup) error {
|
|
typ := setup.injector.NewTarget().AsObject()
|
|
if err := mgr.GetFieldIndexer().IndexField(typ, injectFromPath, injectableIndexer); err != nil {
|
|
return err
|
|
}
|
|
|
|
return ctrl.NewControllerManagedBy(mgr).
|
|
For(typ).
|
|
Watches(&source.Kind{Type: &certmanager.Certificate{}},
|
|
&handler.EnqueueRequestsFromMapFunc{ToRequests: &certMapper{
|
|
Client: mgr.GetClient(),
|
|
log: ctrl.Log.WithName("cert-mapper"),
|
|
toInjectable: certToInjectableFunc(setup.listType, setup.resourceName),
|
|
}}).
|
|
Watches(&source.Kind{Type: &corev1.Secret{}}, &handler.EnqueueRequestsFromMapFunc{
|
|
ToRequests: &secretMapper{
|
|
Client: mgr.GetClient(),
|
|
log: ctrl.Log.WithName("secret-mapper"),
|
|
toInjectable: certToInjectableFunc(setup.listType, setup.resourceName),
|
|
}}).
|
|
Complete(&genericInjectReconciler{
|
|
Client: mgr.GetClient(),
|
|
log: ctrl.Log.WithName("inject-controller"),
|
|
resourceName: setup.resourceName,
|
|
injector: setup.injector,
|
|
})
|
|
}
|
|
|
|
// RegisterALL registers all known injection controllers with the given manager, and adds relevant indicides.
|
|
func RegisterAll(mgr ctrl.Manager) error {
|
|
for _, setup := range injectorSetups {
|
|
if err := Register(mgr, setup); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|