Ditch rc-service control-agent, use daemonset insteaad

clitools/pkg/node/agent.go

@@ -2,17 +2,56 @@ package node
 
 import (
 	"context"
+	"fmt"
 
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/klog/v2"
-	system "undecided.project/monok8s/pkg/system"
+
+	"undecided.project/monok8s/pkg/crds"
+	"undecided.project/monok8s/pkg/kube"
 )
 
-// Cluster is fine without uboot commands, just no OSUpgrade agent
-func StartControlAgent(ctx context.Context, n *NodeContext) error {
-	err := ConfigureUBootCommands(ctx, n)
-	if err == nil {
-		return system.EnsureServiceRunning(ctx, n.SystemRunner, "control-agent")
+func ApplyCRDs(ctx context.Context, n *NodeContext) error {
+	if n.Config.Spec.ClusterRole != "control-plane" {
+		return nil
 	}
-	klog.Warningf("not starting agent due to uboot: %v", err)
+
+	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
 }