cmd/k8s-operator: add a kubernetes operator.

This was initially developed in a separate repo, but for build/release reasons and because go module management limits the damage of importing k8s things now, moving it into this repo. At time of commit, the operator enables exposing services over tailscale, with the 'tailscale' loadBalancerClass. It also currently requires an unreleased feature to access the Tailscale API, so is not usable yet. Updates #502. Signed-off-by: David Anderson <danderson@tailscale.com>
2024-11-25 19:15:34 +00:00 · 2022-12-12 11:15:34 -08:00 · 2022-12-12 11:15:34 -08:00 · b2d4abf25a
commit b2d4abf25a
parent 47002d93a3
5 changed files with 911 additions and 9 deletions
--- a/cmd/k8s-operator/main.go
+++ b/cmd/k8s-operator/main.go
@ -0,0 +1,625 @@
+// Copyright (c) 2022 Tailscale Inc & AUTHORS All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// tailscale-operator provides a way to expose services running in a Kubernetes
+// cluster to your Tailnet.
+package main
+
+import (
+	"bytes"
+	"context"
+	_ "embed"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+	"time"
+
+	"golang.org/x/exp/slices"
+	appsv1 "k8s.io/api/apps/v1"
+	corev1 "k8s.io/api/core/v1"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/fields"
+	"k8s.io/apimachinery/pkg/types"
+	"sigs.k8s.io/controller-runtime/pkg/builder"
+	"sigs.k8s.io/controller-runtime/pkg/cache"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/client/config"
+	"sigs.k8s.io/controller-runtime/pkg/handler"
+	logf "sigs.k8s.io/controller-runtime/pkg/log"
+	"sigs.k8s.io/controller-runtime/pkg/log/zap"
+	"sigs.k8s.io/controller-runtime/pkg/manager"
+	"sigs.k8s.io/controller-runtime/pkg/manager/signals"
+	"sigs.k8s.io/controller-runtime/pkg/reconcile"
+	"sigs.k8s.io/controller-runtime/pkg/source"
+	"sigs.k8s.io/yaml"
+	"tailscale.com/client/tailscale"
+	"tailscale.com/ipn/store/kubestore"
+	"tailscale.com/tsnet"
+	"tailscale.com/types/logger"
+)
+
+var (
+	hostname    = defaultEnv("OPERATOR_HOSTNAME", "tailscale-operator")
+	kubeSecret  = defaultEnv("OPERATOR_SECRET", "")
+	tsNamespace = defaultEnv("OPERATOR_NAMESPACE", "default")
+	image       = defaultEnv("PROXY_IMAGE", "tailscale/tailscale:latest")
+	tags        = defaultEnv("PROXY_TAGS", "tag:k8s")
+)
+
+func main() {
+	// TODO: use logpolicy
+	tailscale.I_Acknowledge_This_API_Is_Unstable = true
+	logf.SetLogger(zap.New())
+	s := &tsnet.Server{
+		Hostname: hostname,
+		Logf:     logger.Discard,
+	}
+	if kubeSecret != "" {
+		st, err := kubestore.New(logger.Discard, kubeSecret)
+		if err != nil {
+			log.Fatalf("creating kube store: %v", err)
+		}
+		s.Store = st
+	}
+	if err := s.Start(); err != nil {
+		log.Fatalf("starting tailscale server: %v", err)
+	}
+	defer s.Close()
+	lc, err := s.LocalClient()
+	if err != nil {
+		log.Fatalf("getting local client: %v", err)
+	}
+
+	ctx := context.Background()
+	loginShown := false
+	machineAuthShown := false
+waitOnline:
+	for {
+		st, err := lc.StatusWithoutPeers(ctx)
+		if err != nil {
+			log.Fatalf("getting status: %v", err)
+		}
+		switch st.BackendState {
+		case "Running":
+			break waitOnline
+		case "NeedsLogin":
+			if !loginShown && st.AuthURL != "" {
+				log.Printf("tailscale needs login, please visit: %s", st.AuthURL)
+				loginShown = true
+			}
+		case "NeedsMachineAuth":
+			if !machineAuthShown {
+				log.Printf("Machine authorization required, please visit the admin panel to authorize")
+				machineAuthShown = true
+			}
+		default:
+			log.Printf("waiting for tailscale to start: %v", st.BackendState)
+		}
+		time.Sleep(time.Second)
+	}
+
+	// For secrets and statefulsets, we only get permission to touch the objects
+	// in the controller's own namespace. This cannot be expressed by
+	// .Watches(...) below, instead you have to add a per-type field selector to
+	// the cache that sits a few layers below the builder stuff, which will
+	// implicitly filter what parts of the world the builder code gets to see at
+	// all.
+	nsFilter := cache.ObjectSelector{
+		Field: fields.SelectorFromSet(fields.Set{"metadata.namespace": tsNamespace}),
+	}
+	mgr, err := manager.New(config.GetConfigOrDie(), manager.Options{
+		NewCache: cache.BuilderWithOptions(cache.Options{
+			SelectorsByObject: map[client.Object]cache.ObjectSelector{
+				&corev1.Secret{}:      nsFilter,
+				&appsv1.StatefulSet{}: nsFilter,
+			},
+		}),
+	})
+	if err != nil {
+		log.Fatalf("could not create manager: %v", err)
+	}
+	tsClient, err := s.APIClient()
+	if err != nil {
+		log.Fatalf("getting tailscale client: %v", err)
+	}
+	sr := &ServiceReconciler{
+		tsClient:    tsClient,
+		defaultTags: strings.Split(tags, ","),
+	}
+	reconcileFilter := handler.EnqueueRequestsFromMapFunc(func(o client.Object) []reconcile.Request {
+		ls := o.GetLabels()
+		if ls[LabelManaged] != "true" {
+			return nil
+		}
+		if ls[LabelParentType] != "svc" {
+			return nil
+		}
+		return []reconcile.Request{
+			{
+				NamespacedName: types.NamespacedName{
+					Namespace: ls[LabelParentNamespace],
+					Name:      ls[LabelParentName],
+				},
+			},
+		}
+	})
+	err = builder.
+		ControllerManagedBy(mgr).
+		For(&corev1.Service{}).
+		Watches(&source.Kind{Type: &appsv1.StatefulSet{}}, reconcileFilter).
+		Watches(&source.Kind{Type: &corev1.Secret{}}, reconcileFilter).
+		Complete(sr)
+	if err != nil {
+		log.Fatalf("could not create controller: %v", err)
+	}
+
+	log.Printf("Startup complete, operator running")
+	if err := mgr.Start(signals.SetupSignalHandler()); err != nil {
+		log.Fatalf("could not start manager: %v", err)
+	}
+}
+
+const (
+	LabelManaged         = "tailscale.com/managed"
+	LabelParentType      = "tailscale.com/parent-resource-type"
+	LabelParentName      = "tailscale.com/parent-resource"
+	LabelParentNamespace = "tailscale.com/parent-resource-ns"
+
+	FinalizerName = "tailscale.com/finalizer"
+
+	AnnotationExpose = "tailscale.com/expose"
+	AnnotationTags   = "tailscale.com/tags"
+)
+
+// ServiceReconciler is a simple ControllerManagedBy example implementation.
+type ServiceReconciler struct {
+	client.Client
+	defaultTags []string
+	tsClient    *tailscale.Client
+}
+
+func childResourceLabels(parent *corev1.Service) map[string]string {
+	// You might wonder why we're using owner references, since they seem to be
+	// built for exactly this. Unfortunately, Kubernetes does not support
+	// cross-namespace ownership, by design. This means we cannot make the
+	// service being exposed the owner of the implementation details of the
+	// proxying. Instead, we have to do our own filtering and tracking with
+	// labels.
+	return map[string]string{
+		LabelManaged:         "true",
+		LabelParentName:      parent.GetName(),
+		LabelParentNamespace: parent.GetNamespace(),
+		LabelParentType:      "svc",
+	}
+}
+
+// cleanupIfRequired removes any existing resources related to svc.
+//
+// This function is responsible for removing the finalizer from the service,
+// once all associated resources are gone.
+func (a *ServiceReconciler) cleanupIfRequired(ctx context.Context, svc *corev1.Service) (reconcile.Result, error) {
+	ix := slices.Index(svc.Finalizers, FinalizerName)
+	if ix < 0 {
+		return reconcile.Result{}, nil
+	}
+
+	ml := childResourceLabels(svc)
+
+	// Need to delete the StatefulSet first, and delete it with foreground
+	// cascading deletion. That way, the pod that's writing to the Secret will
+	// stop running before we start looking at the Secret's contents, and
+	// assuming k8s ordering semantics don't mess with us, that should avoid
+	// tailscale device deletion races where we fail to notice a device that
+	// should be removed.
+	sts, err := getSingleObject[appsv1.StatefulSet](ctx, a.Client, ml)
+	if err != nil {
+		return reconcile.Result{}, fmt.Errorf("getting statefulset: %w", err)
+	}
+	if sts != nil {
+		if !sts.GetDeletionTimestamp().IsZero() {
+			// Deletion in progress, check again later.
+			return reconcile.Result{RequeueAfter: time.Second}, nil
+		}
+		err := a.DeleteAllOf(ctx, &appsv1.StatefulSet{}, client.InNamespace(tsNamespace), client.MatchingLabels(ml), client.PropagationPolicy(metav1.DeletePropagationForeground))
+		if err != nil {
+			return reconcile.Result{}, fmt.Errorf("deleting statefulset: %w", err)
+		}
+		return reconcile.Result{RequeueAfter: time.Second}, nil
+	}
+
+	id, _, err := a.getDeviceInfo(ctx, svc)
+	if err != nil {
+		return reconcile.Result{}, fmt.Errorf("getting device info: %w", err)
+	}
+	if id != "" {
+		// TODO: handle case where the device is already deleted, but the secret
+		// is still around.
+		if err := a.tsClient.DeleteDevice(ctx, id); err != nil {
+			return reconcile.Result{}, fmt.Errorf("deleting device: %w", err)
+		}
+	}
+
+	types := []client.Object{
+		&corev1.Service{},
+		&corev1.Secret{},
+	}
+	for _, typ := range types {
+		if err := a.DeleteAllOf(ctx, typ, client.InNamespace(tsNamespace), client.MatchingLabels(ml)); err != nil {
+			return reconcile.Result{}, err
+		}
+	}
+
+	svc.Finalizers = append(svc.Finalizers[:ix], svc.Finalizers[ix+1:]...)
+	if err := a.Update(ctx, svc); err != nil {
+		return reconcile.Result{}, fmt.Errorf("failed to remove finalizer: %w", err)
+	}
+
+	return reconcile.Result{}, nil
+}
+
+func (a *ServiceReconciler) hasLoadBalancerClass(svc *corev1.Service) bool {
+	return svc != nil &&
+		svc.Spec.Type == corev1.ServiceTypeLoadBalancer &&
+		svc.Spec.LoadBalancerClass != nil &&
+		*svc.Spec.LoadBalancerClass == "tailscale"
+}
+
+func (a *ServiceReconciler) hasAnnotation(svc *corev1.Service) bool {
+	return svc != nil &&
+		svc.Annotations[AnnotationExpose] == "true"
+}
+
+func (a *ServiceReconciler) shouldExpose(svc *corev1.Service) bool {
+	return a.hasLoadBalancerClass(svc) || a.hasAnnotation(svc)
+}
+
+func (a *ServiceReconciler) Reconcile(ctx context.Context, req reconcile.Request) (_ reconcile.Result, err error) {
+	defer func() {
+		if err != nil {
+			log.Printf("error reconciling %s/%s: %v", req.Namespace, req.Name, err)
+		}
+	}()
+
+	svc := new(corev1.Service)
+	err = a.Get(ctx, req.NamespacedName, svc)
+	if err != nil {
+		if apierrors.IsNotFound(err) {
+			// Request object not found, could have been deleted after reconcile request.
+			return reconcile.Result{}, nil
+		}
+		return reconcile.Result{}, fmt.Errorf("failed to get svc: %w", err)
+	}
+	if !svc.DeletionTimestamp.IsZero() || !a.shouldExpose(svc) {
+		return a.cleanupIfRequired(ctx, svc)
+	}
+
+	if svc.Spec.ClusterIP == "" || svc.Spec.ClusterIP == "None" {
+		log.Printf("%s has ClusterIP=%q; nothing to do", svc.Name, svc.Spec.ClusterIP)
+		return reconcile.Result{}, nil
+	}
+	log.Printf("exposing %s", svc.Name)
+
+	if !slices.Contains(svc.Finalizers, FinalizerName) {
+		svc.Finalizers = append(svc.Finalizers, FinalizerName)
+		if err := a.Update(ctx, svc); err != nil {
+			return reconcile.Result{}, fmt.Errorf("failed to add finalizer: %w", err)
+		}
+	}
+
+	// Do full reconcile.
+	hsvc, err := a.reconcileHeadlessService(ctx, svc)
+	if err != nil {
+		return reconcile.Result{}, fmt.Errorf("failed to reconcile headless service: %w", err)
+	}
+
+	tags := a.defaultTags
+	if tstr, ok := svc.Annotations[AnnotationTags]; ok {
+		tags = strings.Split(tstr, ",")
+	}
+	secretName, err := a.createOrGetSecret(ctx, svc, hsvc, tags)
+	if err != nil {
+		return reconcile.Result{}, fmt.Errorf("failed to create or get API key secret: %w", err)
+	}
+	_, err = a.reconcileSTS(ctx, svc, hsvc, secretName)
+	if err != nil {
+		return reconcile.Result{}, fmt.Errorf("failed to reconcile statefulset: %w", err)
+	}
+
+	if !a.hasLoadBalancerClass(svc) {
+		return reconcile.Result{}, nil
+	}
+
+	_, tsHost, err := a.getDeviceInfo(ctx, svc)
+	if err != nil {
+		return reconcile.Result{}, fmt.Errorf("failed to get device ID: %w", err)
+	}
+	if tsHost == "" {
+		// No hostname yet. Wait for the proxy pod to auth.
+		svc.Status.LoadBalancer.Ingress = nil
+		if err := a.Status().Update(ctx, svc); err != nil {
+			return reconcile.Result{}, fmt.Errorf("failed to update service status: %w", err)
+		}
+		return reconcile.Result{RequeueAfter: 10 * time.Second}, nil
+	}
+
+	svc.Status.LoadBalancer.Ingress = []corev1.LoadBalancerIngress{
+		{
+			Hostname: tsHost,
+		},
+	}
+	if err := a.Status().Update(ctx, svc); err != nil {
+		return reconcile.Result{}, fmt.Errorf("failed to update service status: %w", err)
+	}
+	return reconcile.Result{}, nil
+}
+
+func (a *ServiceReconciler) reconcileHeadlessService(ctx context.Context, svc *corev1.Service) (*corev1.Service, error) {
+	hsvc := &corev1.Service{
+		ObjectMeta: metav1.ObjectMeta{
+			GenerateName: "ts-" + svc.Name + "-",
+			Namespace:    tsNamespace,
+			Labels:       childResourceLabels(svc),
+		},
+		Spec: corev1.ServiceSpec{
+			ClusterIP: "None",
+			Selector: map[string]string{
+				"app": string(svc.UID),
+			},
+		},
+	}
+	return createOrUpdate(ctx, a.Client, hsvc, func(svc *corev1.Service) { svc.Spec = hsvc.Spec })
+}
+
+func (a *ServiceReconciler) createOrGetSecret(ctx context.Context, svc, hsvc *corev1.Service, tags []string) (string, error) {
+	secret := &corev1.Secret{
+		ObjectMeta: metav1.ObjectMeta{
+			// Hardcode a -0 suffix so that in future, if we support
+			// multiple StatefulSet replicas, we can provision -N for
+			// those.
+			Name:      hsvc.Name + "-0",
+			Namespace: tsNamespace,
+			Labels:    childResourceLabels(svc),
+		},
+	}
+	if err := a.Get(ctx, client.ObjectKeyFromObject(secret), secret); err == nil {
+		return secret.Name, nil
+	} else if !apierrors.IsNotFound(err) {
+		return "", err
+	}
+
+	// Secret doesn't exist yet, create one. Initially it contains
+	// only the Tailscale authkey, but once Tailscale starts it'll
+	// also store the daemon state.
+	sts, err := getSingleObject[appsv1.StatefulSet](ctx, a.Client, childResourceLabels(svc))
+	if err != nil {
+		return "", err
+	}
+	if sts != nil {
+		// StatefulSet exists, so we have already created the secret.
+		// If the secret is missing, they should delete the StatefulSet.
+		return "", nil
+	}
+	// Create API Key secret which is going to be used by the statefulset
+	// to authenticate with Tailscale.
+	authKey, err := a.newAuthKey(ctx, tags)
+	if err != nil {
+		return "", err
+	}
+
+	secret.StringData = map[string]string{
+		"authkey": authKey.Key,
+	}
+	if err := a.Create(ctx, secret); err != nil {
+		return "", err
+	}
+	return secret.Name, nil
+}
+
+func (a *ServiceReconciler) getDeviceInfo(ctx context.Context, svc *corev1.Service) (id, hostname string, err error) {
+	sec, err := getSingleObject[corev1.Secret](ctx, a.Client, childResourceLabels(svc))
+	if err != nil {
+		return "", "", err
+	}
+	id = string(sec.Data["device_id"])
+	if id == "" {
+		return "", "", nil
+	}
+	// Kubernetes chokes on well-formed FQDNs with the trailing dot, so we have
+	// to remove it.
+	hostname = strings.TrimSuffix(string(sec.Data["device_fqdn"]), ".")
+	if hostname == "" {
+		return "", "", nil
+	}
+	return id, hostname, nil
+}
+
+type authKey struct {
+	ID           string     `json:"id"`
+	Key          string     `json:"key"`
+	Created      time.Time  `json:"created"`
+	Expires      time.Time  `json:"expires"`
+	Capabilities capability `json:"capabilities"`
+}
+
+type newKeyRequest struct {
+	Capabilities capability `json:"capabilities"`
+}
+
+type capability struct {
+	Devices struct {
+		Create struct {
+			Reusable      bool
+			Ephemeral     bool
+			Preauthorized bool
+			Tags          []string
+		} `json:"create"`
+	} `json:"devices"`
+}
+
+func (a *ServiceReconciler) newAuthKey(ctx context.Context, tags []string) (*authKey, error) {
+	var nkr newKeyRequest
+	nkr.Capabilities.Devices.Create.Reusable = false
+	nkr.Capabilities.Devices.Create.Preauthorized = true
+	nkr.Capabilities.Devices.Create.Tags = tags
+	jc, err := json.Marshal(nkr)
+	if err != nil {
+		return nil, err
+	}
+	req, err := http.NewRequestWithContext(ctx, "POST", fmt.Sprintf("https://unused/api/v2/tailnet/%s/keys", a.tsClient.Tailnet()), bytes.NewReader(jc))
+	if err != nil {
+		return nil, err
+	}
+	resp, err := a.tsClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	slurp := new(bytes.Buffer)
+	if _, err := io.Copy(slurp, resp.Body); err != nil {
+		return nil, err
+	}
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("unexpected status code: %d; %v", resp.StatusCode, slurp.String())
+	}
+	var ak authKey
+	if err := json.NewDecoder(slurp).Decode(&ak); err != nil {
+		return nil, err
+	}
+	return &ak, nil
+}
+
+//go:embed manifests/proxy.yaml
+var proxyYaml []byte
+
+func (a *ServiceReconciler) reconcileSTS(ctx context.Context, parentSvc, headlessSvc *corev1.Service, authKeySecret string) (*appsv1.StatefulSet, error) {
+	var ss appsv1.StatefulSet
+	if err := yaml.Unmarshal(proxyYaml, &ss); err != nil {
+		return nil, fmt.Errorf("failed to unmarshal proxy spec: %w", err)
+	}
+	container := &ss.Spec.Template.Spec.Containers[0]
+	container.Image = image
+	container.Env = append(container.Env,
+		corev1.EnvVar{
+			Name:  "TS_DEST_IP",
+			Value: parentSvc.Spec.ClusterIP,
+		},
+		corev1.EnvVar{
+			Name:  "TS_KUBE_SECRET",
+			Value: authKeySecret,
+		})
+	ss.ObjectMeta = metav1.ObjectMeta{
+		Name:      headlessSvc.Name,
+		Namespace: tsNamespace,
+		Labels:    childResourceLabels(parentSvc),
+	}
+	ss.Spec.ServiceName = headlessSvc.Name
+	ss.Spec.Selector = &metav1.LabelSelector{
+		MatchLabels: map[string]string{
+			"app": string(parentSvc.UID),
+		},
+	}
+	ss.Spec.Template.ObjectMeta.Labels = map[string]string{
+		"app": string(parentSvc.UID),
+	}
+	return createOrUpdate(ctx, a.Client, &ss, func(s *appsv1.StatefulSet) { s.Spec = ss.Spec })
+}
+
+func (a *ServiceReconciler) InjectClient(c client.Client) error {
+	a.Client = c
+	return nil
+}
+
+// ptrObject is a type constraint for pointer types that implement
+// client.Object.
+type ptrObject[T any] interface {
+	client.Object
+	*T
+}
+
+// createOrUpdate adds obj to the k8s cluster, unless the object already exists,
+// in which case update is called to make changes to it. If update is nil, the
+// existing object is returned unmodified.
+//
+// obj is looked up by its Name and Namespace if Name is set, otherwise it's
+// looked up by labels.
+func createOrUpdate[T any, O ptrObject[T]](ctx context.Context, c client.Client, obj O, update func(O)) (O, error) {
+	var (
+		existing O
+		err      error
+	)
+	if obj.GetName() != "" {
+		existing = new(T)
+		existing.SetName(obj.GetName())
+		existing.SetNamespace(obj.GetNamespace())
+		err = c.Get(ctx, client.ObjectKeyFromObject(obj), existing)
+	} else {
+		existing, err = getSingleObject[T, O](ctx, c, obj.GetLabels())
+	}
+	if err == nil && existing != nil {
+		if update != nil {
+			update(existing)
+			if err := c.Update(ctx, existing); err != nil {
+				return nil, err
+			}
+		}
+		return existing, nil
+	}
+	if err != nil && !apierrors.IsNotFound(err) {
+		return nil, fmt.Errorf("failed to get object: %w", err)
+	}
+	if err := c.Create(ctx, obj); err != nil {
+		return nil, err
+	}
+	return obj, nil
+}
+
+// getSingleObject searches for k8s objects of type T
+// (e.g. corev1.Service) with the given labels, and returns
+// it. Returns nil if no objects match the labels, and an error if
+// more than one object matches.
+func getSingleObject[T any, O ptrObject[T]](ctx context.Context, c client.Client, labels map[string]string) (O, error) {
+	ret := O(new(T))
+	kinds, _, err := c.Scheme().ObjectKinds(ret)
+	if err != nil {
+		return nil, err
+	}
+	if len(kinds) != 1 {
+		// TODO: the runtime package apparently has a "pick the best
+		// GVK" function somewhere that might be good enough?
+		return nil, fmt.Errorf("more than 1 GroupVersionKind for %T", ret)
+	}
+
+	gvk := kinds[0]
+	gvk.Kind += "List"
+	lst := unstructured.UnstructuredList{}
+	lst.SetGroupVersionKind(gvk)
+	if err := c.List(ctx, &lst, client.InNamespace(tsNamespace), client.MatchingLabels(labels)); err != nil {
+		return nil, err
+	}
+
+	if len(lst.Items) == 0 {
+		return nil, nil
+	}
+	if len(lst.Items) > 1 {
+		return nil, fmt.Errorf("found multiple matching %T objects", ret)
+	}
+	if err := c.Scheme().Convert(&lst.Items[0], ret, nil); err != nil {
+		return nil, err
+	}
+	return ret, nil
+}
+
+func defaultEnv(envName, defVal string) string {
+	v := os.Getenv(envName)
+	if v == "" {
+		return defVal
+	}
+	return v
+}
--- a/cmd/k8s-operator/manifests/operator.yaml
+++ b/cmd/k8s-operator/manifests/operator.yaml
@ -0,0 +1,114 @@
+# Copyright (c) 2022 Tailscale Inc & AUTHORS All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: proxies
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: proxies
+rules:
+- apiGroups: [""] # "" indicates the core API group
+  resources: ["secrets"]
+  verbs: ["*"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: proxies
+subjects:
+- kind: ServiceAccount
+  name: proxies
+roleRef:
+  kind: Role
+  name: proxies
+  apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: operator
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: tailscale-operator
+rules:
+- apiGroups: [""]
+  resources: ["services", "services/status"]
+  verbs: ["*"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: tailscale-operator
+subjects:
+- kind: ServiceAccount
+  name: operator
+  namespace: default
+roleRef:
+  kind: ClusterRole
+  name: tailscale-operator
+  apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: operator
+rules:
+- apiGroups: [""] # "" indicates the core API group
+  resources: ["secrets"]
+  verbs: ["*"]
+- apiGroups: ["apps"]
+  resources: ["statefulsets"]
+  verbs: ["*"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: operator
+subjects:
+- kind: ServiceAccount
+  name: operator
+roleRef:
+  kind: Role
+  name: operator
+  apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tailscale-operator
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app: tailscale-operator
+  template:
+    metadata:
+      labels:
+        app: tailscale-operator
+    spec:
+      serviceAccountName: operator
+      containers:
+        - name: tailscale-operator
+          image: tailscale/k8s-operator:latest
+          resources:
+            requests:
+              cpu: 500m
+              memory: 100Mi
+          env:
+            - name: OPERATOR_HOSTNAME
+              value: tailscale-operator
+            - name: OPERATOR_SECRET
+              value: tailscale-operator
+            - name: PROXY_IMAGE
+              value: tailscale/tailscale:latest
+            - name: PROXY_TAGS
+              value: tag:k8s
--- a/cmd/k8s-operator/manifests/proxy.yaml
+++ b/cmd/k8s-operator/manifests/proxy.yaml
@ -0,0 +1,37 @@
+# This file is not a complete manifest, it's a skeleton that the operator embeds
+# at build time and then uses to construct Tailscale proxy pods.
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+spec:
+  replicas: 1
+  template:
+    metadata:
+      deletionGracePeriodSeconds: 10
+    spec:
+      serviceAccountName: proxies
+      initContainers:
+        - name: sysctler
+          image: busybox
+          securityContext:
+            privileged: true
+          command: ["/bin/sh"]
+          args:
+            - -c
+            - sysctl -w net.ipv4.ip_forward=1 net.ipv6.conf.all.forwarding=1
+      resources:
+        requests:
+          cpu: 1m
+          memory: 1Mi
+      containers:
+        - name: tailscale
+          imagePullPolicy: Always
+          env:
+            - name: TS_USERSPACE
+              value: "false"
+            - name: TS_AUTH_ONCE
+              value: "true"
+          securityContext:
+            capabilities:
+              add:
+                - NET_ADMIN
--- a/go.mod
+++ b/go.mod
@ -71,7 +71,7 @@ require (
 	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4
 	golang.org/x/sys v0.2.0
 	golang.org/x/term v0.2.0
-	golang.org/x/time v0.0.0-20211116232009-f0f3c7e86c11
+	golang.org/x/time v0.0.0-20220609170525-579cf78fd858
 	golang.org/x/tools v0.2.0
 	golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224
 	golang.zx2c4.com/wireguard/windows v0.5.3
@ -79,7 +79,11 @@ require (
 	honnef.co/go/tools v0.4.0-0.dev.0.20220517111757-f4a2f64ce238
 	inet.af/peercred v0.0.0-20210906144145-0893ea02156a
 	inet.af/wf v0.0.0-20220728202103-50d96caab2f6
+	k8s.io/api v0.25.0
+	k8s.io/apimachinery v0.25.0
 	nhooyr.io/websocket v1.8.7
+	sigs.k8s.io/controller-runtime v0.13.1
+	sigs.k8s.io/yaml v1.3.0
 	software.sslmate.com/src/go-pkcs12 v0.2.0
 )

@ -96,6 +100,8 @@ require (
 	github.com/Masterminds/sprig v2.22.0+incompatible // indirect
 	github.com/OpenPeeDeeP/depguard v1.0.1 // indirect
 	github.com/ProtonMail/go-crypto v0.0.0-20211112122917-428f8eabeeb3 // indirect
+	github.com/PuerkitoBio/purell v1.1.1 // indirect
+	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
 	github.com/acomagu/bufpipe v1.0.3 // indirect
 	github.com/alexkohler/prealloc v1.0.0 // indirect
 	github.com/ashanbrown/forbidigo v1.2.0 // indirect
@ -131,18 +137,25 @@ require (
 	github.com/docker/distribution v2.8.1+incompatible // indirect
 	github.com/docker/docker v20.10.16+incompatible // indirect
 	github.com/docker/docker-credential-helpers v0.6.4 // indirect
+	github.com/emicklei/go-restful/v3 v3.8.0 // indirect
 	github.com/emirpasic/gods v1.12.0 // indirect
 	github.com/esimonov/ifshort v1.0.3 // indirect
 	github.com/ettle/strcase v0.1.1 // indirect
+	github.com/evanphx/json-patch/v5 v5.6.0 // indirect
 	github.com/fatih/color v1.13.0 // indirect
 	github.com/fatih/structtag v1.2.0 // indirect
-	github.com/fsnotify/fsnotify v1.5.1 // indirect
+	github.com/fsnotify/fsnotify v1.5.4 // indirect
 	github.com/fzipp/gocyclo v0.3.1 // indirect
 	github.com/gliderlabs/ssh v0.3.3 // indirect
 	github.com/go-critic/go-critic v0.6.1 // indirect
 	github.com/go-git/gcfg v1.5.0 // indirect
 	github.com/go-git/go-billy/v5 v5.3.1 // indirect
 	github.com/go-git/go-git/v5 v5.4.2 // indirect
+	github.com/go-logr/logr v1.2.3 // indirect
+	github.com/go-logr/zapr v1.2.3 // indirect
+	github.com/go-openapi/jsonpointer v0.19.5 // indirect
+	github.com/go-openapi/jsonreference v0.19.5 // indirect
+	github.com/go-openapi/swag v0.19.14 // indirect
 	github.com/go-toolsmith/astcast v1.0.0 // indirect
 	github.com/go-toolsmith/astcopy v1.0.0 // indirect
 	github.com/go-toolsmith/astequal v1.0.1 // indirect
@ -153,6 +166,7 @@ require (
 	github.com/go-xmlfmt/xmlfmt v0.0.0-20211206191508-7fd73a941850 // indirect
 	github.com/gobwas/glob v0.2.3 // indirect
 	github.com/gofrs/flock v0.8.1 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/golangci/check v0.0.0-20180506172741-cfe4005ccda2 // indirect
 	github.com/golangci/dupl v0.0.0-20180902072040-3e9179ac440a // indirect
@ -165,7 +179,9 @@ require (
 	github.com/golangci/revgrep v0.0.0-20210930125155-c22e5001d4f2 // indirect
 	github.com/golangci/unconvert v0.0.0-20180507085042-28b1c447d1f4 // indirect
 	github.com/google/btree v1.0.1 // indirect
+	github.com/google/gnostic v0.5.7-v3refs // indirect
 	github.com/google/go-containerregistry v0.9.0 // indirect
+	github.com/google/gofuzz v1.1.0 // indirect
 	github.com/google/goterm v0.0.0-20200907032337-555d40f16ae2 // indirect
 	github.com/google/rpmpack v0.0.0-20201206194719-59e495f2b7e1 // indirect
 	github.com/gordonklaus/ineffassign v0.0.0-20210914165742-4cc7213b9bc8 // indirect
@ -186,6 +202,7 @@ require (
 	github.com/jingyugao/rowserrcheck v1.1.1 // indirect
 	github.com/jirfag/go-printf-func-name v0.0.0-20200119135958-7558a9eaa5af // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
 	github.com/josharian/native v1.0.1-0.20220222152702-a938fb150d47 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/julz/importas v0.0.0-20210922140945-27e0a5d4dee2 // indirect
@ -201,10 +218,11 @@ require (
 	github.com/ldez/gomoddirectives v0.2.2 // indirect
 	github.com/ldez/tagliatelle v0.2.0 // indirect
 	github.com/magiconair/properties v1.8.5 // indirect
+	github.com/mailru/easyjson v0.7.6 // indirect
 	github.com/maratori/testpackage v1.0.1 // indirect
 	github.com/matoous/godox v0.0.0-20210227103229-6504466cf951 // indirect
 	github.com/mattn/go-runewidth v0.0.13 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 // indirect
 	github.com/mbilski/exhaustivestruct v1.2.0 // indirect
 	github.com/mdlayher/socket v0.2.3 // indirect
 	github.com/mgechev/dots v0.0.0-20210922191527-e955255bf517 // indirect
@ -213,7 +231,10 @@ require (
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
 	github.com/mitchellh/mapstructure v1.4.3 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/moricho/tparallel v0.2.1 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/nakabonne/nestif v0.3.1 // indirect
 	github.com/nbutton23/zxcvbn-go v0.0.0-20210217022336-fa2cb2858354 // indirect
 	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
@ -228,7 +249,7 @@ require (
 	github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/polyfloyd/go-errorlint v0.0.0-20211125173453-6d6d39c5bb8b // indirect
-	github.com/prometheus/client_golang v1.11.0 // indirect
+	github.com/prometheus/client_golang v1.12.2 // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/common v0.32.1 // indirect
 	github.com/prometheus/procfs v0.7.3 // indirect
@ -273,18 +294,33 @@ require (
 	github.com/x448/float16 v0.8.4 // indirect
 	github.com/xanzy/ssh-agent v0.3.1 // indirect
 	github.com/yeya24/promlinter v0.1.0 // indirect
+	go.uber.org/atomic v1.7.0 // indirect
+	go.uber.org/multierr v1.6.0 // indirect
+	go.uber.org/zap v1.21.0 // indirect
 	golang.org/x/exp/typeparams v0.0.0-20220328175248-053ad81199eb // indirect
 	golang.org/x/image v0.0.0-20201208152932-35266b937fa6 // indirect
 	golang.org/x/mod v0.6.0 // indirect
+	golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5 // indirect
 	golang.org/x/text v0.4.0 // indirect
+	gomodules.xyz/jsonpatch/v2 v2.2.0 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/protobuf v1.28.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/ini.v1 v1.66.2 // indirect
 	gopkg.in/warnings.v0 v0.1.2 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	howett.net/plist v1.0.0 // indirect
+	k8s.io/apiextensions-apiserver v0.25.0 // indirect
+	k8s.io/client-go v0.25.0 // indirect
+	k8s.io/component-base v0.25.0 // indirect
+	k8s.io/klog/v2 v2.70.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20220803162953-67bda5d908f1 // indirect
+	k8s.io/utils v0.0.0-20220728103510-ee6ede2d64ed // indirect
 	mvdan.cc/gofumpt v0.2.0 // indirect
 	mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed // indirect
 	mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b // indirect
 	mvdan.cc/unparam v0.0.0-20211002134041-24922b6997ca // indirect
+	sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2 // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
 )
--- a/go.sum
+++ b/go.sum
@ -92,6 +92,10 @@ github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmU
 github.com/ProtonMail/go-crypto v0.0.0-20210428141323-04723f9f07d7/go.mod h1:z4/9nQmJSSwwds7ejkxaJwO37dru3geImFUdJlaLzQo=
 github.com/ProtonMail/go-crypto v0.0.0-20211112122917-428f8eabeeb3 h1:XcF0cTDJeiuZ5NU8w7WUDge0HRwwNRmxj/GGk6KSA6g=
 github.com/ProtonMail/go-crypto v0.0.0-20211112122917-428f8eabeeb3/go.mod h1:z4/9nQmJSSwwds7ejkxaJwO37dru3geImFUdJlaLzQo=
+github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
+github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
+github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
+github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
 github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/StackExchange/wmi v1.2.1/go.mod h1:rcmrprowKIVzvc+NUiLncP2uuArMWLCbu9SBzvHz7e8=
 github.com/acomagu/bufpipe v1.0.3 h1:fxAGrHZTgQ9w5QqVItgzwj235/uYZYgbXitB+dLupOk=
@ -167,6 +171,8 @@ github.com/aws/aws-sdk-go-v2/service/sts v1.11.1 h1:QKR7wy5e650q70PFKMfGF9sTo0rZ
 github.com/aws/aws-sdk-go-v2/service/sts v1.11.1/go.mod h1:UV2N5HaPfdbDpkgkz4sRzWCvQswZjdO1FfqCWl0t7RA=
 github.com/aws/smithy-go v1.9.0 h1:c7FUdEqrQA1/UVKKCNDFQPNKGp4FQg3YW4Ck5SLTG58=
 github.com/aws/smithy-go v1.9.0/go.mod h1:SObp3lf9smib00L/v3U2eAKG8FyQ7iLrJnQiAmR5n+E=
+github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
+github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
@ -263,10 +269,13 @@ github.com/docker/docker v20.10.16+incompatible h1:2Db6ZR/+FUR3hqPMwnogOPHFn405c
 github.com/docker/docker v20.10.16+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
 github.com/docker/docker-credential-helpers v0.6.4 h1:axCks+yV+2MR3/kZhAmy07yC56WZ2Pwu/fKWtKuZB0o=
 github.com/docker/docker-credential-helpers v0.6.4/go.mod h1:ofX3UI0Gz1TteYBjtgs07O36Pyasyp66D2uKT7H8W1c=
+github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE=
 github.com/dsnet/try v0.0.3 h1:ptR59SsrcFUYbT/FhAbKTV6iLkeD6O18qfIWRml2fqI=
 github.com/dsnet/try v0.0.3/go.mod h1:WBM8tRpUmnXXhY1U6/S8dt6UWdHTQ7y8A5YSkRCkq40=
 github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
+github.com/emicklei/go-restful/v3 v3.8.0 h1:eCZ8ulSerjdAiaNpF7GxXIE7ZCMo1moN1qX+S609eVw=
+github.com/emicklei/go-restful/v3 v3.8.0/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
 github.com/emirpasic/gods v1.12.0 h1:QAUIPSaCu4G+POclxeqb3F+WPpdKqFGlw36+yOzGlrg=
 github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
@ -282,6 +291,10 @@ github.com/esimonov/ifshort v1.0.3 h1:JD6x035opqGec5fZ0TLjXeROD2p5H7oLGn8MKfy9HT
 github.com/esimonov/ifshort v1.0.3/go.mod h1:yZqNJUrNn20K8Q9n2CrjTKYyVEmX209Hgu+M1LBpeZE=
 github.com/ettle/strcase v0.1.1 h1:htFueZyVeE1XNnMEfbqp5r67qAN/4r6ya1ysq8Q+Zcw=
 github.com/ettle/strcase v0.1.1/go.mod h1:hzDLsPC7/lwKyBOywSHEP89nt2pDgdy+No1NBA9o9VY=
+github.com/evanphx/json-patch v0.5.2/go.mod h1:ZWS5hhDbVDyob71nXKNL0+PWn6ToqBHMikGIFbs31qQ=
+github.com/evanphx/json-patch v4.12.0+incompatible h1:4onqiflcdA9EOZ4RxV643DvftH5pOlLGNtQ5lPWQu84=
+github.com/evanphx/json-patch/v5 v5.6.0 h1:b91NhWfaz02IuVxO9faSllyAtNXHMPkC5J8sJCLunww=
+github.com/evanphx/json-patch/v5 v5.6.0/go.mod h1:G79N1coSVB93tBe7j6PhzjmR3/2VvlbKOFpnXhI9Bw4=
 github.com/evanw/esbuild v0.14.53 h1:9uU73SZUmP1jRQhaC6hPm9aoqFGYlPwfk7OrhG6AhpQ=
 github.com/evanw/esbuild v0.14.53/go.mod h1:iINY06rn799hi48UqEnaQvVfZWe6W9bET78LbvN8VWk=
 github.com/fanliao/go-promise v0.0.0-20141029170127-1890db352a72/go.mod h1:PjfxuH4FZdUyfMdtBio2lsRr1AKEaVPwelzuHuh8Lqc=
@ -297,8 +310,9 @@ github.com/frankban/quicktest v1.14.0 h1:+cqqvzZV87b4adx/5ayVOaYZ2CrvM4ejQvUdBzP
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@ -340,10 +354,25 @@ github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vb
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@ -396,6 +425,7 @@ github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7a
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@ -468,6 +498,8 @@ github.com/google/btree v1.0.1 h1:gK4Kx5IaGY9CD5sPJ36FHiBJ6ZXl0kilRiiCj+jdYp4=
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@ -486,6 +518,8 @@ github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeN
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@ -651,6 +685,8 @@ github.com/jmoiron/sqlx v1.2.0/go.mod h1:1FEQNm3xlJgrMD+FBdI9+xvCksHtbpVBBw5dYhB
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@ -744,6 +780,10 @@ github.com/magiconair/properties v1.8.1/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czP
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@ -777,8 +817,9 @@ github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4
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@ -847,6 +888,8 @@ github.com/moricho/tparallel v0.2.1/go.mod h1:fXEIZxG2vdfl0ZF8b42f5a78EhjjD5mX8q
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@ -883,6 +926,7 @@ github.com/onsi/ginkgo v1.14.1/go.mod h1:iSB4RoI2tjJc9BBv4NKIKWKya62Rps+oPG/Lv9k
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@ -939,8 +983,9 @@ github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXP
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@ -1043,6 +1088,7 @@ github.com/sourcegraph/go-diff v0.6.1 h1:hmA1LzxW0n1c3Q4YbrFgg4P99GSnebYa3x8gr0H
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 github.com/spf13/afero v1.6.0 h1:xoax2sJ2DT8S8xA2paPFjDCScCNeWsg75VG0DLRreiY=
@ -1073,6 +1119,7 @@ github.com/spf13/viper v1.9.0/go.mod h1:+i6ajR7OX2XaiBkrcZJFK21htRk7eDeLg7+O6bhU
 github.com/ssgreg/nlreturn/v2 v2.1.0/go.mod h1:E/iiPB78hV7Szg2YfRgyIrk1AD6JVMTRkkxBiELzh2I=
 github.com/ssgreg/nlreturn/v2 v2.2.1 h1:X4XDI7jstt3ySqGU86YGAURbxw3oTDPK9sPEi6YEwQ0=
 github.com/ssgreg/nlreturn/v2 v2.2.1/go.mod h1:E/iiPB78hV7Szg2YfRgyIrk1AD6JVMTRkkxBiELzh2I=
+github.com/stoewer/go-strcase v1.2.0/go.mod h1:IBiWB2sKIp3wVVQ3Y035++gc+knqhUQag1KpM8ahLw8=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.3.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
@ -1229,15 +1276,23 @@ go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqe
 go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.5.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
+go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
+go.uber.org/goleak v1.1.10/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
+go.uber.org/goleak v1.1.11/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
+go.uber.org/goleak v1.1.12 h1:gZAh5/EyT/HQwlpkCy6wTpqfH9H8Lz8zbm3dZh+OyzA=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
 go.uber.org/multierr v1.4.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
+go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
 go.uber.org/zap v1.13.0/go.mod h1:zwrFLgMcdUuIBviXEYEH1YKNaOBnKXsx2IPda5bBwHM=
 go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
+go.uber.org/zap v1.19.0/go.mod h1:xg/QME4nWcxGxrpdeYfq7UvYrLh66cuVKdrbD1XF/NI=
+go.uber.org/zap v1.21.0 h1:WefMeulhovoZ2sYXz7st6K0sLj7bBhpiFaud4r4zST8=
+go.uber.org/zap v1.21.0/go.mod h1:wjWOCqI0f2ZZrJF/UufIOkiC8ii6tm1iqIsLo76RfJw=
 go4.org/intern v0.0.0-20211027215823-ae77deb06f29 h1:UXLjNohABv4S58tHmeuIZDO6e3mHpW2Dx33gaNt03LE=
 go4.org/mem v0.0.0-20210711025021-927187094b94 h1:OAAkygi2Js191AJP1Ds42MhJRgeofeKGjuoUqNp1QC4=
 go4.org/mem v0.0.0-20210711025021-927187094b94/go.mod h1:reUoABIJ9ikfM5sgtSF3Wushcza7+WeD01VB9Lirh3g=
@ -1396,6 +1451,8 @@ golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c/go.mod h1:KelEdhl1UZF7XfJ
 golang.org/x/oauth2 v0.0.0-20210628180205-a41e5a781914/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/oauth2 v0.0.0-20210805134026-6f1e6394065a/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/oauth2 v0.0.0-20210819190943-2bc19b11175f/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
+golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5 h1:OSnWWcOd/CtWQC2cYSBgbTSJv3ciqd8r54ySIW2y3RE=
+golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5/go.mod h1:DAh4E804XQdzx2j+YRIaUnCqCV2RuMz24cGBJ5QYIrc=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -1513,7 +1570,9 @@ golang.org/x/sys v0.0.0-20211019181941-9d821ace8654/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20211102192858-4dd72447c267/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211105183446-c75c47738b0c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220114195835-da31bd327af9/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220128215802-99c3d69c2c27/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220412211240-33da011f77ad/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220622161953-175b2fd9d664/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.2.0 h1:ljd4t30dBnAvMZaQCevtY0xLLD0A+bRZXbgLMLU1F/A=
@ -1539,8 +1598,8 @@ golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxb
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/time v0.0.0-20211116232009-f0f3c7e86c11 h1:GZokNIeuVkl3aZHJchRrr13WCsols02MLUcz1U9is6M=
-golang.org/x/time v0.0.0-20211116232009-f0f3c7e86c11/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/time v0.0.0-20220609170525-579cf78fd858 h1:Dpdu/EMxGMFgq0CeYMh4fazTD2vtlZRYE7wyynxJb9U=
+golang.org/x/time v0.0.0-20220609170525-579cf78fd858/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180525024113-a5b4c53f6e8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@ -1662,6 +1721,8 @@ golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 h1:Ug9qvr1myri/zFN6xL
 golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
 golang.zx2c4.com/wireguard/windows v0.5.3 h1:On6j2Rpn3OEMXqBq00QEDC7bWSZrPIHKIus8eIuExIE=
 golang.zx2c4.com/wireguard/windows v0.5.3/go.mod h1:9TEe8TJmtwyQebdFwAkEWOPr3prrtqm+REGFifP60hI=
+gomodules.xyz/jsonpatch/v2 v2.2.0 h1:4pT439QV83L+G9FkcCriY6EkpcK6r6bK+A5FBUMI7qY=
+gomodules.xyz/jsonpatch/v2 v2.2.0/go.mod h1:WXp+iVDkoLQqPudfQ9GBlwB2eZ5DKOnjQZCYdOS8GPY=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
 google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
@ -1698,6 +1759,7 @@ google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww
 google.golang.org/appengine v1.6.2/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
 google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/appengine v1.6.6/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
+google.golang.org/appengine v1.6.7 h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6c=
 google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/genproto v0.0.0-20170818010345-ee236bd376b0/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
@ -1736,6 +1798,7 @@ google.golang.org/genproto v0.0.0-20200729003335-053ba62fc06f/go.mod h1:FWY/as6D
 google.golang.org/genproto v0.0.0-20200804131852-c06518451d9c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20200904004341-0bd0a958aa1d/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
+google.golang.org/genproto v0.0.0-20201019141844-1ed22bb0c154/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20201109203340-2640f1f9cdfb/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20201201144952-b05cb90ed32e/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20201210142538-e3217bee35cc/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
@ -1814,6 +1877,8 @@ gopkg.in/cheggaaa/pb.v1 v1.0.28/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qS
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o=
+gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
+gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/ini.v1 v1.62.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/ini.v1 v1.63.2/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
@ -1862,6 +1927,23 @@ inet.af/peercred v0.0.0-20210906144145-0893ea02156a h1:qdkS8Q5/i10xU2ArJMKYhVa1D
 inet.af/peercred v0.0.0-20210906144145-0893ea02156a/go.mod h1:FjawnflS/udxX+SvpsMgZfdqx2aykOlkISeAsADi5IU=
 inet.af/wf v0.0.0-20220728202103-50d96caab2f6 h1:BfgDtKnWJTeu+xI1aOEweXdPwqOhB3IbQUDj1XuftcY=
 inet.af/wf v0.0.0-20220728202103-50d96caab2f6/go.mod h1:bSAQ38BYbY68uwpasXOTZo22dKGy9SNvI6PZFeKomZE=
+k8s.io/api v0.25.0 h1:H+Q4ma2U/ww0iGB78ijZx6DRByPz6/733jIuFpX70e0=
+k8s.io/api v0.25.0/go.mod h1:ttceV1GyV1i1rnmvzT3BST08N6nGt+dudGrquzVQWPk=
+k8s.io/apiextensions-apiserver v0.25.0 h1:CJ9zlyXAbq0FIW8CD7HHyozCMBpDSiH7EdrSTCZcZFY=
+k8s.io/apiextensions-apiserver v0.25.0/go.mod h1:3pAjZiN4zw7R8aZC5gR0y3/vCkGlAjCazcg1me8iB/E=
+k8s.io/apimachinery v0.25.0 h1:MlP0r6+3XbkUG2itd6vp3oxbtdQLQI94fD5gCS+gnoU=
+k8s.io/apimachinery v0.25.0/go.mod h1:qMx9eAk0sZQGsXGu86fab8tZdffHbwUfsvzqKn4mfB0=
+k8s.io/client-go v0.25.0 h1:CVWIaCETLMBNiTUta3d5nzRbXvY5Hy9Dpl+VvREpu5E=
+k8s.io/client-go v0.25.0/go.mod h1:lxykvypVfKilxhTklov0wz1FoaUZ8X4EwbhS6rpRfN8=
+k8s.io/component-base v0.25.0 h1:haVKlLkPCFZhkcqB6WCvpVxftrg6+FK5x1ZuaIDaQ5Y=
+k8s.io/component-base v0.25.0/go.mod h1:F2Sumv9CnbBlqrpdf7rKZTmmd2meJq0HizeyY/yAFxk=
+k8s.io/klog/v2 v2.0.0/go.mod h1:PBfzABfn139FHAV07az/IF9Wp1bkk3vpT2XSJ76fSDE=
+k8s.io/klog/v2 v2.70.1 h1:7aaoSdahviPmR+XkS7FyxlkkXs6tHISSG03RxleQAVQ=
+k8s.io/klog/v2 v2.70.1/go.mod h1:y1WjHnz7Dj687irZUWR/WLkLc5N1YHtjLdmgWjndZn0=
+k8s.io/kube-openapi v0.0.0-20220803162953-67bda5d908f1 h1:MQ8BAZPZlWk3S9K4a9NCkIFQtZShWqoha7snGixVgEA=
+k8s.io/kube-openapi v0.0.0-20220803162953-67bda5d908f1/go.mod h1:C/N6wCaBHeBHkHUesQOQy2/MZqGgMAFPqGsGQLdbZBU=
+k8s.io/utils v0.0.0-20220728103510-ee6ede2d64ed h1:jAne/RjBTyawwAy0utX5eqigAwz/lQhTmy+Hr/Cpue4=
+k8s.io/utils v0.0.0-20220728103510-ee6ede2d64ed/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
 mvdan.cc/gofumpt v0.0.0-20200802201014-ab5a8192947d/go.mod h1:bzrjFmaD6+xqohD3KYP0H2FEuxknnBmyyOxdhLdaIws=
 mvdan.cc/gofumpt v0.0.0-20201129102820-5c11c50e9475/go.mod h1:E4LOcu9JQEtnYXtB1Y51drqh2Qr2Ngk9J3YrRCwcbd0=
 mvdan.cc/gofumpt v0.1.1/go.mod h1:yXG1r1WqZVKWbVRtBWKWX9+CxGYfA51nSomhM0woR48=
@ -1880,7 +1962,15 @@ nhooyr.io/websocket v1.8.7/go.mod h1:B70DZP8IakI65RVQ51MsWP/8jndNma26DVA/nFSCgW0
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
+sigs.k8s.io/controller-runtime v0.13.1 h1:tUsRCSJVM1QQOOeViGeX3GMT3dQF1eePPw6sEE3xSlg=
+sigs.k8s.io/controller-runtime v0.13.1/go.mod h1:Zbz+el8Yg31jubvAEyglRZGdLAjplZl+PgtYNI6WNTI=
+sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2 h1:iXTIw73aPyC+oRdyqqvVJuloN1p0AC/kzH07hu3NE+k=
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