karmada/operator/pkg/controlplane/metricsadapter/metricsadapter.go

78 lines
3.1 KiB
Go

package metricsadapter
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"
"github.com/karmada-io/karmada/operator/pkg/util/patcher"
)
// EnsureKarmadaMetricAdapter creates karmada-metric-adapter deployment and service resource.
func EnsureKarmadaMetricAdapter(client clientset.Interface, cfg *operatorv1alpha1.KarmadaMetricsAdapter, name, namespace string) error {
if err := installKarmadaMetricAdapter(client, cfg, name, namespace); err != nil {
return err
}
return createKarmadaMetricAdapterService(client, name, namespace)
}
func installKarmadaMetricAdapter(client clientset.Interface, cfg *operatorv1alpha1.KarmadaMetricsAdapter, name, namespace string) error {
metricAdapterBytes, err := util.ParseTemplate(KarmadaMetricsAdapterDeployment, struct {
DeploymentName, Namespace, Image string
KubeconfigSecret, KarmadaCertsSecret string
Replicas *int32
}{
DeploymentName: util.KarmadaMetricsAdapterName(name),
Namespace: namespace,
Image: cfg.Image.Name(),
Replicas: cfg.Replicas,
KubeconfigSecret: util.AdminKubeconfigSecretName(name),
KarmadaCertsSecret: util.KarmadaCertSecretName(name),
})
if err != nil {
return fmt.Errorf("error when parsing KarmadaMetricAdapter Deployment template: %w", err)
}
metricAdapter := &appsv1.Deployment{}
if err := kuberuntime.DecodeInto(clientsetscheme.Codecs.UniversalDecoder(), metricAdapterBytes, metricAdapter); err != nil {
return fmt.Errorf("err when decoding KarmadaMetricAdapter Deployment: %w", err)
}
patcher.NewPatcher().WithAnnotations(cfg.Annotations).WithLabels(cfg.Labels).WithResources(cfg.Resources).ForDeployment(metricAdapter)
if err := apiclient.CreateOrUpdateDeployment(client, metricAdapter); err != nil {
return fmt.Errorf("error when creating deployment for %s, err: %w", metricAdapter.Name, err)
}
return nil
}
func createKarmadaMetricAdapterService(client clientset.Interface, name, namespace string) error {
metricAdapterServiceBytes, err := util.ParseTemplate(KarmadaMetricsAdapterService, struct {
ServiceName, Namespace string
}{
ServiceName: util.KarmadaMetricsAdapterName(name),
Namespace: namespace,
})
if err != nil {
return fmt.Errorf("error when parsing KarmadaMetricAdapter Service template: %w", err)
}
metricAdapterService := &corev1.Service{}
if err := kuberuntime.DecodeInto(clientsetscheme.Codecs.UniversalDecoder(), metricAdapterServiceBytes, metricAdapterService); err != nil {
return fmt.Errorf("err when decoding KarmadaMetricAdapter Service: %w", err)
}
if err := apiclient.CreateOrUpdateService(client, metricAdapterService); err != nil {
return fmt.Errorf("err when creating service for %s, err: %w", metricAdapterService.Name, err)
}
return nil
}