karmada/operator/pkg/controlplane/webhook/webhook.go

75 lines
2.8 KiB
Go

package webhook
import (
"fmt"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
kuberuntime "k8s.io/apimachinery/pkg/runtime"
clientset "k8s.io/client-go/kubernetes"
clientsetscheme "k8s.io/client-go/kubernetes/scheme"
operatorv1alpha1 "github.com/karmada-io/karmada/operator/pkg/apis/operator/v1alpha1"
"github.com/karmada-io/karmada/operator/pkg/util"
"github.com/karmada-io/karmada/operator/pkg/util/apiclient"
)
// EnsureKarmadaWebhook creates karmada webhook deployment and service resource.
func EnsureKarmadaWebhook(client clientset.Interface, cfg *operatorv1alpha1.KarmadaWebhook, name, namespace string) error {
if err := installKarmadaWebhook(client, cfg, name, namespace); err != nil {
return err
}
return createKarmadaWebhookService(client, name, namespace)
}
func installKarmadaWebhook(client clientset.Interface, cfg *operatorv1alpha1.KarmadaWebhook, name, namespace string) error {
webhookDeploymentSetBytes, err := util.ParseTemplate(KarmadaWebhookDeployment, struct {
DeploymentName, Namespace, Image string
KubeconfigSecret, WebhookCertsSecret string
Replicas *int32
}{
DeploymentName: util.KarmadaWebhookName(name),
Namespace: namespace,
Image: cfg.Image.Name(),
Replicas: cfg.Replicas,
KubeconfigSecret: util.AdminKubeconfigSercretName(name),
WebhookCertsSecret: util.WebhookCertSecretName(name),
})
if err != nil {
return fmt.Errorf("error when parsing KarmadaWebhook Deployment template: %w", err)
}
webhookDeployment := &appsv1.Deployment{}
if err := kuberuntime.DecodeInto(clientsetscheme.Codecs.UniversalDecoder(), webhookDeploymentSetBytes, webhookDeployment); err != nil {
return fmt.Errorf("err when decoding KarmadaWebhook Deployment: %w", err)
}
if err := apiclient.CreateOrUpdateDeployment(client, webhookDeployment); err != nil {
return fmt.Errorf("error when creating deployment for %s, err: %w", webhookDeployment.Name, err)
}
return nil
}
func createKarmadaWebhookService(client clientset.Interface, name, namespace string) error {
webhookServiceSetBytes, err := util.ParseTemplate(KarmadaWebhookService, struct {
ServiceName, Namespace string
}{
ServiceName: util.KarmadaWebhookName(name),
Namespace: namespace,
})
if err != nil {
return fmt.Errorf("error when parsing KarmadaWebhook Service template: %w", err)
}
webhookService := &corev1.Service{}
if err := kuberuntime.DecodeInto(clientsetscheme.Codecs.UniversalDecoder(), webhookServiceSetBytes, webhookService); err != nil {
return fmt.Errorf("err when decoding KarmadaWebhook Service: %w", err)
}
if err := apiclient.CreateOrUpdateService(client, webhookService); err != nil {
return fmt.Errorf("err when creating service for %s, err: %w", webhookService.Name, err)
}
return nil
}