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Refactor webhook organization (#711)
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hougangliu authored and k8s-ci-robot committed Aug 5, 2019
1 parent de96a52 commit 6d4dd47
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Showing 7 changed files with 104 additions and 64 deletions.
7 changes: 7 additions & 0 deletions cmd/katib-controller/v1alpha2/main.go
Expand Up @@ -30,6 +30,7 @@ import (
"github.com/kubeflow/katib/pkg/api/operators/apis"
controller "github.com/kubeflow/katib/pkg/controller/v1alpha2"
"github.com/kubeflow/katib/pkg/controller/v1alpha2/consts"
webhook "github.com/kubeflow/katib/pkg/webhook/v1alpha2"
)

func main() {
Expand Down Expand Up @@ -77,6 +78,12 @@ func main() {
os.Exit(1)
}

log.Info("Setting up webhooks")
if err := webhook.AddToManager(mgr); err != nil {
log.Error(err, "unable to register webhooks to the manager")
os.Exit(1)
}

// Start the Cmd
log.Info("Starting the Cmd.")
if err := mgr.Start(signals.SetupSignalHandler()); err != nil {
Expand Down
61 changes: 0 additions & 61 deletions pkg/controller/v1alpha2/experiment/experiment_controller.go
Expand Up @@ -18,11 +18,9 @@ package experiment

import (
"context"
"os"
"sort"

"github.com/spf13/viper"
admissionregistrationv1beta1 "k8s.io/api/admissionregistration/v1beta1"
"k8s.io/apimachinery/pkg/api/equality"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
Expand All @@ -35,8 +33,6 @@ import (
"sigs.k8s.io/controller-runtime/pkg/reconcile"
logf "sigs.k8s.io/controller-runtime/pkg/runtime/log"
"sigs.k8s.io/controller-runtime/pkg/source"
"sigs.k8s.io/controller-runtime/pkg/webhook"
"sigs.k8s.io/controller-runtime/pkg/webhook/admission/builder"

experimentsv1alpha2 "github.com/kubeflow/katib/pkg/api/operators/apis/experiment/v1alpha2"
trialsv1alpha2 "github.com/kubeflow/katib/pkg/api/operators/apis/trial/v1alpha2"
Expand All @@ -48,8 +44,6 @@ import (
"github.com/kubeflow/katib/pkg/controller/v1alpha2/experiment/util"
)

const katibControllerName = "katib-controller"

var log = logf.Log.WithName("experiment-controller")

/**
Expand Down Expand Up @@ -108,10 +102,6 @@ func add(mgr manager.Manager, r reconcile.Reconciler) error {
log.Error(err, "Trial watch failed")
return err
}
if err = addWebhook(mgr); err != nil {
log.Error(err, "Failed to create webhook")
return err
}

log.Info("Experiment controller created")
return nil
Expand Down Expand Up @@ -141,57 +131,6 @@ func addWatch(mgr manager.Manager, c controller.Controller) error {
return nil
}

func addWebhook(mgr manager.Manager) error {
mutatingWebhook, err := builder.NewWebhookBuilder().
Name("mutating.experiment.kubeflow.org").
Mutating().
Operations(admissionregistrationv1beta1.Create, admissionregistrationv1beta1.Update).
WithManager(mgr).
ForType(&experimentsv1alpha2.Experiment{}).
Handlers(&experimentDefaulter{}).
Build()
if err != nil {
return err
}
validatingWebhook, err := builder.NewWebhookBuilder().
Name("validating.experiment.kubeflow.org").
Validating().
Operations(admissionregistrationv1beta1.Create, admissionregistrationv1beta1.Update).
WithManager(mgr).
ForType(&experimentsv1alpha2.Experiment{}).
Handlers(newExperimentValidator(mgr.GetClient())).
Build()
if err != nil {
return err
}
as, err := webhook.NewServer("experiment-admission-server", mgr, webhook.ServerOptions{
CertDir: "/tmp/cert",
BootstrapOptions: &webhook.BootstrapOptions{
Secret: &types.NamespacedName{
Namespace: os.Getenv(experimentsv1alpha2.DefaultKatibNamespaceEnvName),
Name: katibControllerName,
},
Service: &webhook.Service{
Namespace: os.Getenv(experimentsv1alpha2.DefaultKatibNamespaceEnvName),
Name: katibControllerName,
Selectors: map[string]string{
"app": katibControllerName,
},
},
ValidatingWebhookConfigName: "experiment-validating-webhook-config",
MutatingWebhookConfigName: "experiment-mutating-webhook-config",
},
})
if err != nil {
return err
}
err = as.Register(mutatingWebhook, validatingWebhook)
if err != nil {
return err
}
return nil
}

var _ reconcile.Reconciler = &ReconcileExperiment{}

// ReconcileExperiment reconciles a Experiment object
Expand Down
Expand Up @@ -62,3 +62,9 @@ func (e *experimentDefaulter) InjectDecoder(d types.Decoder) error {
e.decoder = d
return nil
}

func NewExperimentDefaulter(c client.Client) *experimentDefaulter {
return &experimentDefaulter{
client: c,
}
}
Expand Up @@ -28,7 +28,7 @@ import (
experimentsv1alpha2 "github.com/kubeflow/katib/pkg/api/operators/apis/experiment/v1alpha2"
"github.com/kubeflow/katib/pkg/controller/v1alpha2/experiment/managerclient"
"github.com/kubeflow/katib/pkg/controller/v1alpha2/experiment/manifest"
"github.com/kubeflow/katib/pkg/controller/v1alpha2/experiment/validator"
"github.com/kubeflow/katib/pkg/webhook/v1alpha2/experiment/validator"
)

// experimentValidator validates Pods
Expand All @@ -39,7 +39,7 @@ type experimentValidator struct {
validator.Validator
}

func newExperimentValidator(c client.Client) *experimentValidator {
func NewExperimentValidator(c client.Client) *experimentValidator {
p := manifest.New(c)
mc := managerclient.New()
return &experimentValidator{
Expand Down
Expand Up @@ -19,7 +19,7 @@ import (
"github.com/kubeflow/katib/pkg/controller/v1alpha2/experiment/manifest"
)

var log = logf.Log.WithName("experiment-controller")
var log = logf.Log.WithName("experiment-validating-webhook")

type Validator interface {
ValidateExperiment(instance *experimentsv1alpha2.Experiment) error
Expand Down
88 changes: 88 additions & 0 deletions pkg/webhook/v1alpha2/webhook.go
@@ -0,0 +1,88 @@
/*
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 webhook

import (
"os"

experimentsv1alpha2 "github.com/kubeflow/katib/pkg/api/operators/apis/experiment/v1alpha2"
"github.com/kubeflow/katib/pkg/webhook/v1alpha2/experiment"

admissionregistrationv1beta1 "k8s.io/api/admissionregistration/v1beta1"
"k8s.io/apimachinery/pkg/types"

"sigs.k8s.io/controller-runtime/pkg/manager"
"sigs.k8s.io/controller-runtime/pkg/webhook"
"sigs.k8s.io/controller-runtime/pkg/webhook/admission/builder"
)

const katibControllerName = "katib-controller"

func AddToManager(m manager.Manager) error {
server, err := webhook.NewServer("katib-admission-server", m, webhook.ServerOptions{
CertDir: "/tmp/cert",
BootstrapOptions: &webhook.BootstrapOptions{
Secret: &types.NamespacedName{
Namespace: os.Getenv(experimentsv1alpha2.DefaultKatibNamespaceEnvName),
Name: katibControllerName,
},
Service: &webhook.Service{
Namespace: os.Getenv(experimentsv1alpha2.DefaultKatibNamespaceEnvName),
Name: katibControllerName,
Selectors: map[string]string{
"app": katibControllerName,
},
},
ValidatingWebhookConfigName: "katib-validating-webhook-config",
MutatingWebhookConfigName: "katib-mutating-webhook-config",
},
})
if err != nil {
return err
}

if err := register(m, server); err != nil {
return err
}

return nil
}

func register(manager manager.Manager, server *webhook.Server) error {
mutatingWebhook, err := builder.NewWebhookBuilder().
Name("mutating.experiment.kubeflow.org").
Mutating().
Operations(admissionregistrationv1beta1.Create, admissionregistrationv1beta1.Update).
WithManager(manager).
ForType(&experimentsv1alpha2.Experiment{}).
Handlers(experiment.NewExperimentDefaulter(manager.GetClient())).
Build()
if err != nil {
return err
}
validatingWebhook, err := builder.NewWebhookBuilder().
Name("validating.experiment.kubeflow.org").
Validating().
Operations(admissionregistrationv1beta1.Create, admissionregistrationv1beta1.Update).
WithManager(manager).
ForType(&experimentsv1alpha2.Experiment{}).
Handlers(experiment.NewExperimentValidator(manager.GetClient())).
Build()
if err != nil {
return err
}
return server.Register(mutatingWebhook, validatingWebhook)
}

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