Files
monok8s/clitools/pkg/node/agent.go

58 lines
1.4 KiB
Go

package node
import (
"context"
"fmt"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/klog/v2"
"undecided.project/monok8s/pkg/crds"
"undecided.project/monok8s/pkg/kube"
)
func ApplyCRDs(ctx context.Context, n *NodeContext) error {
if n.Config.Spec.ClusterRole != "control-plane" {
return nil
}
const kubeconfig = "/etc/kubernetes/admin.conf"
clients, err := kube.NewClientsFromKubeconfig(kubeconfig)
if err != nil {
return fmt.Errorf("build kube clients from %s: %w", kubeconfig, err)
}
crdClient := clients.APIExtensions.ApiextensionsV1().CustomResourceDefinitions()
for _, wanted := range crds.Definitions() {
_, err := crdClient.Create(ctx, wanted, metav1.CreateOptions{})
if err == nil {
klog.InfoS("crd created", "name", wanted.Name)
continue
}
if !apierrors.IsAlreadyExists(err) {
return fmt.Errorf("create CRD %s: %w", wanted.Name, err)
}
current, getErr := crdClient.Get(ctx, wanted.Name, metav1.GetOptions{})
if getErr != nil {
return fmt.Errorf("get existing CRD %s: %w", wanted.Name, getErr)
}
updated := wanted.DeepCopy()
updated.ResourceVersion = current.ResourceVersion
_, err = crdClient.Update(ctx, updated, metav1.UpdateOptions{})
if err != nil {
return fmt.Errorf("update CRD %s: %w", wanted.Name, err)
}
klog.InfoS("crd updated", "name", wanted.Name)
}
return nil
}