chore: Convert singleton reconcilers to operatorpkg

go.mod

@@ -1,6 +1,6 @@
 module github.com/aws/karpenter-provider-aws
 
-go 1.22.3
+go 1.22.4
 
 require (
 	github.com/Pallinder/go-randomdata v1.2.0
@@ -9,7 +9,7 @@ require (
 	github.com/aws/aws-sdk-go v1.53.14
 	github.com/aws/karpenter-provider-aws/tools/kompat v0.0.0-20240410220356-6b868db24881
 	github.com/awslabs/amazon-eks-ami/nodeadm v0.0.0-20240229193347-cfab22a10647
-	github.com/awslabs/operatorpkg v0.0.0-20240518001059-1e35978ba21b
+	github.com/awslabs/operatorpkg v0.0.0-20240605172541-88cf99023fa4
 	github.com/go-logr/zapr v1.3.0
 	github.com/imdario/mergo v0.3.16
 	github.com/mitchellh/hashstructure/v2 v2.0.2
@@ -30,7 +30,7 @@ require (
 	k8s.io/utils v0.0.0-20240102154912-e7106e64919e
 	knative.dev/pkg v0.0.0-20231010144348-ca8c009405dd
 	sigs.k8s.io/controller-runtime v0.18.3
-	sigs.k8s.io/karpenter v0.37.0
+	sigs.k8s.io/karpenter v0.37.1-0.20240605225346-c7c5068db687
 	sigs.k8s.io/yaml v1.4.0
 )
 
@@ -51,7 +51,7 @@ require (
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/go-kit/log v0.2.1 // indirect
 	github.com/go-logfmt/logfmt v0.6.0 // indirect
-	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-openapi/jsonpointer v0.20.0 // indirect
 	github.com/go-openapi/jsonreference v0.20.2 // indirect
 	github.com/go-openapi/swag v0.22.4 // indirect
@@ -113,6 +113,7 @@ require (
 	k8s.io/component-base v0.30.1 // indirect
 	k8s.io/csi-translation-lib v0.30.1 // indirect
 	k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340 // indirect
+	k8s.io/kubernetes v1.30.1 // indirect
 	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
 	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
 )

go.sum

@@ -60,8 +60,8 @@ github.com/aws/karpenter-provider-aws/tools/kompat v0.0.0-20240410220356-6b868db
 github.com/aws/karpenter-provider-aws/tools/kompat v0.0.0-20240410220356-6b868db24881/go.mod h1:+Mk5k0b6HpKobxNq+B56DOhZ+I/NiPhd5MIBhQMSTSs=
 github.com/awslabs/amazon-eks-ami/nodeadm v0.0.0-20240229193347-cfab22a10647 h1:8yRBVsjGmI7qQsPWtIrbWP+XfwHO9Wq7gdLVzjqiZFs=
 github.com/awslabs/amazon-eks-ami/nodeadm v0.0.0-20240229193347-cfab22a10647/go.mod h1:9NafTAUHL0FlMeL6Cu5PXnMZ1q/LnC9X2emLXHsVbM8=
-github.com/awslabs/operatorpkg v0.0.0-20240518001059-1e35978ba21b h1:bmlbw6EjSDoZEWbGE2rnXDsCgbTsxMyufM4NRRHaLVk=
-github.com/awslabs/operatorpkg v0.0.0-20240518001059-1e35978ba21b/go.mod h1:YcidmUg8Pjk349+jd+sRCdo6h3jzxqAY1VDNgVJKbSA=
+github.com/awslabs/operatorpkg v0.0.0-20240605172541-88cf99023fa4 h1:EVFVrteX0PQuofO9Ah4rf4aGyUkBM3lLuKgzwilAEAg=
+github.com/awslabs/operatorpkg v0.0.0-20240605172541-88cf99023fa4/go.mod h1:OR0NDOTl6XUXKgcksUab5d7mCnpaZf7Ko4eWEbheJTY=
 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=
@@ -115,8 +115,8 @@ github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG
 github.com/go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
 github.com/go-logfmt/logfmt v0.6.0 h1:wGYYu3uicYdqXVgoYbvnkrPVXkuLM1p1ifugDMEdRi4=
 github.com/go-logfmt/logfmt v0.6.0/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
-github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
-github.com/go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
+github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/zapr v1.3.0 h1:XGdV8XW8zdwFiwOA2Dryh1gj2KRQyOOoNmBy4EplIcQ=
 github.com/go-logr/zapr v1.3.0/go.mod h1:YKepepNBd1u/oyhd/yQmtjVXmm9uML4IXUgMOwR8/Gg=
 github.com/go-openapi/jsonpointer v0.19.6/go.mod h1:osyAmYz/mB/C3I+WsTTSgw1ONzaLJoLCyoi6/zppojs=
@@ -750,6 +750,8 @@ k8s.io/klog/v2 v2.120.1 h1:QXU6cPEOIslTGvZaXvFWiP9VKyeet3sawzTOvdXb4Vw=
 k8s.io/klog/v2 v2.120.1/go.mod h1:3Jpz1GvMt720eyJH1ckRHK1EDfpxISzJ7I9OYgaDtPE=
 k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340 h1:BZqlfIlq5YbRMFko6/PM7FjZpUb45WallggurYhKGag=
 k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340/go.mod h1:yD4MZYeKMBwQKVht279WycxKyM84kkAx2DPrTXaeb98=
+k8s.io/kubernetes v1.30.1 h1:XlqS6KslLEA5mQzLK2AJrhr4Z1m8oJfkhHiWJ5lue+I=
+k8s.io/kubernetes v1.30.1/go.mod h1:yPbIk3MhmhGigX62FLJm+CphNtjxqCvAIFQXup6RKS0=
 k8s.io/utils v0.0.0-20240102154912-e7106e64919e h1:eQ/4ljkx21sObifjzXwlPKpdGLrCfRziVtos3ofG/sQ=
 k8s.io/utils v0.0.0-20240102154912-e7106e64919e/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
 knative.dev/pkg v0.0.0-20231010144348-ca8c009405dd h1:KJXBX9dOmRTUWduHg1gnWtPGIEl+GMh8UHdrBEZgOXE=
@@ -761,8 +763,8 @@ sigs.k8s.io/controller-runtime v0.18.3 h1:B5Wmmo8WMWK7izei+2LlXLVDGzMwAHBNLX68lw
 sigs.k8s.io/controller-runtime v0.18.3/go.mod h1:TVoGrfdpbA9VRFaRnKgk9P5/atA0pMwq+f+msb9M8Sg=
 sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd h1:EDPBXCAspyGV4jQlpZSudPeMmr1bNJefnuqLsRAsHZo=
 sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd/go.mod h1:B8JuhiUyNFVKdsE8h686QcCxMaH6HrOAZj4vswFpcB0=
-sigs.k8s.io/karpenter v0.37.0 h1:eUFD9hJ2mpZrw31OUYhpbxLWEDmbXT05wX27dZB2E5o=
-sigs.k8s.io/karpenter v0.37.0/go.mod h1:5XYrIz9Bi7HgQyaUsx7O08ft+TJjrH+htlnPq8Sz9J8=
+sigs.k8s.io/karpenter v0.37.1-0.20240605225346-c7c5068db687 h1:I4JBstyyyAwKDXJsb86HAQRPvR2VowsqF81F734L2G8=
+sigs.k8s.io/karpenter v0.37.1-0.20240605225346-c7c5068db687/go.mod h1:SO2WU8Li+bwkLiiEYrRmuhP0QUseZCyYgo6OoXgd9uk=
 sigs.k8s.io/structured-merge-diff/v4 v4.4.1 h1:150L+0vs/8DA78h1u02ooW1/fFq/Lwr+sGiqlzvrtq4=
 sigs.k8s.io/structured-merge-diff/v4 v4.4.1/go.mod h1:N8hJocpFajUSSeSJ9bOZ77VzejKZaXsTtZo4/u7Io08=
 sigs.k8s.io/yaml v1.4.0 h1:Mk1wCc2gy/F0THH0TAp1QYyJNzRm2KCLy3o5ASXVI5E=

hack/code/prices_gen/main.go

@@ -31,8 +31,6 @@ import (
 	"github.com/aws/aws-sdk-go/aws/session"
 	ec22 "github.com/aws/aws-sdk-go/service/ec2"
 	"github.com/samber/lo"
-	"k8s.io/apimachinery/pkg/types"
-	"sigs.k8s.io/controller-runtime/pkg/reconcile"
 
 	controllerspricing "github.com/aws/karpenter-provider-aws/pkg/controllers/providers/pricing"
 	"github.com/aws/karpenter-provider-aws/pkg/operator/options"
@@ -110,7 +108,7 @@ func main() {
 		log.Println("fetching for", region)
 		pricingProvider := pricing.NewDefaultProvider(ctx, pricing.NewAPI(sess, region), ec2, region)
 		controller := controllerspricing.NewController(pricingProvider)
-		_, err := controller.Reconcile(ctx, reconcile.Request{NamespacedName: types.NamespacedName{}})
+		_, err := controller.Reconcile(ctx)
 		if err != nil {
 			log.Fatalf("failed to initialize pricing provider %s", err)
 		}

pkg/controllers/controllers.go

@@ -17,8 +17,8 @@ package controllers
 import (
 	"context"
 
+	"github.com/awslabs/operatorpkg/controller"
 	"sigs.k8s.io/karpenter/pkg/cloudprovider"
-	"sigs.k8s.io/karpenter/pkg/operator/controller"
 
 	nodeclasshash "github.com/aws/karpenter-provider-aws/pkg/controllers/nodeclass/hash"
 	nodeclassstatus "github.com/aws/karpenter-provider-aws/pkg/controllers/nodeclass/status"

pkg/controllers/interruption/controller.go

@@ -20,18 +20,21 @@ import (
 	"time"
 
 	sqsapi "github.com/aws/aws-sdk-go/service/sqs"
+	"github.com/awslabs/operatorpkg/singleton"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/samber/lo"
 	"go.uber.org/multierr"
 	v1 "k8s.io/api/core/v1"
 	"k8s.io/client-go/util/workqueue"
 	"k8s.io/klog/v2"
 	"k8s.io/utils/clock"
+	controllerruntime "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/log"
 	"sigs.k8s.io/controller-runtime/pkg/manager"
 	"sigs.k8s.io/controller-runtime/pkg/reconcile"
 	"sigs.k8s.io/karpenter/pkg/metrics"
+	"sigs.k8s.io/karpenter/pkg/operator/injection"
 
 	"sigs.k8s.io/karpenter/pkg/apis/v1beta1"
 	"sigs.k8s.io/karpenter/pkg/utils/pretty"
@@ -44,7 +47,6 @@ import (
 	"github.com/aws/karpenter-provider-aws/pkg/utils"
 
 	"sigs.k8s.io/karpenter/pkg/events"
-	corecontroller "sigs.k8s.io/karpenter/pkg/operator/controller"
 )
 
 type Action string
@@ -81,7 +83,8 @@ func NewController(kubeClient client.Client, clk clock.Clock, recorder events.Re
 	}
 }
 
-func (c *Controller) Reconcile(ctx context.Context, _ reconcile.Request) (reconcile.Result, error) {
+func (c *Controller) Reconcile(ctx context.Context) (reconcile.Result, error) {
+	ctx = injection.WithControllerName(ctx, "interruption")
 	ctx = log.IntoContext(ctx, log.FromContext(ctx).WithValues("queue", c.sqsProvider.Name()))
 	if c.cm.HasChanged(c.sqsProvider.Name(), nil) {
 		log.FromContext(ctx).V(1).Info("watching interruption queue")
@@ -91,7 +94,7 @@ func (c *Controller) Reconcile(ctx context.Context, _ reconcile.Request) (reconc
 		return reconcile.Result{}, fmt.Errorf("getting messages from queue, %w", err)
 	}
 	if len(sqsMessages) == 0 {
-		return reconcile.Result{}, nil
+		return reconcile.Result{RequeueAfter: singleton.RequeueImmediately}, nil
 	}
 	nodeClaimInstanceIDMap, err := c.makeNodeClaimInstanceIDMap(ctx)
 	if err != nil {
@@ -119,13 +122,14 @@ func (c *Controller) Reconcile(ctx context.Context, _ reconcile.Request) (reconc
 	if err = multierr.Combine(errs...); err != nil {
 		return reconcile.Result{}, err
 	}
-	return reconcile.Result{}, nil
+	return reconcile.Result{RequeueAfter: singleton.RequeueImmediately}, nil
 }
 
 func (c *Controller) Register(_ context.Context, m manager.Manager) error {
-	return corecontroller.NewSingletonManagedBy(m).
+	return controllerruntime.NewControllerManagedBy(m).
 		Named("interruption").
-		Complete(c)
+		WatchesRawSource(singleton.Source()).
+		Complete(singleton.AsReconciler(c))
 }
 
 // parseMessage parses the passed SQS message into an internal Message interface

pkg/controllers/interruption/suite_test.go

@@ -27,7 +27,6 @@ import (
 	"github.com/samber/lo"
 	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/apimachinery/pkg/util/uuid"
 	"k8s.io/client-go/tools/record"
 	clock "k8s.io/utils/clock/testing"
@@ -119,7 +118,7 @@ var _ = Describe("InterruptionHandling", func() {
 			ExpectMessagesCreated(spotInterruptionMessage(lo.Must(utils.ParseInstanceID(nodeClaim.Status.ProviderID))))
 			ExpectApplied(ctx, env.Client, nodeClaim, node)
 
-			ExpectReconcileSucceeded(ctx, controller, types.NamespacedName{})
+			ExpectSingletonReconciled(ctx, controller)
 			Expect(sqsapi.ReceiveMessageBehavior.SuccessfulCalls()).To(Equal(1))
 			ExpectNotFound(ctx, env.Client, nodeClaim)
 			Expect(sqsapi.DeleteMessageBehavior.SuccessfulCalls()).To(Equal(1))
@@ -128,7 +127,7 @@ var _ = Describe("InterruptionHandling", func() {
 			ExpectMessagesCreated(scheduledChangeMessage(lo.Must(utils.ParseInstanceID(nodeClaim.Status.ProviderID))))
 			ExpectApplied(ctx, env.Client, nodeClaim, node)
 
-			ExpectReconcileSucceeded(ctx, controller, types.NamespacedName{})
+			ExpectSingletonReconciled(ctx, controller)
 			Expect(sqsapi.ReceiveMessageBehavior.SuccessfulCalls()).To(Equal(1))
 			ExpectNotFound(ctx, env.Client, nodeClaim)
 			Expect(sqsapi.DeleteMessageBehavior.SuccessfulCalls()).To(Equal(1))
@@ -153,7 +152,7 @@ var _ = Describe("InterruptionHandling", func() {
 				messages = append(messages, stateChangeMessage(instanceID, state))
 			}
 			ExpectMessagesCreated(messages...)
-			ExpectReconcileSucceeded(ctx, controller, types.NamespacedName{})
+			ExpectSingletonReconciled(ctx, controller)
 			Expect(sqsapi.ReceiveMessageBehavior.SuccessfulCalls()).To(Equal(1))
 			ExpectNotFound(ctx, env.Client, lo.Map(nodeClaims, func(nc *corev1beta1.NodeClaim, _ int) client.Object { return nc })...)
 			Expect(sqsapi.DeleteMessageBehavior.SuccessfulCalls()).To(Equal(4))
@@ -183,7 +182,7 @@ var _ = Describe("InterruptionHandling", func() {
 				messages = append(messages, spotInterruptionMessage(id))
 			}
 			ExpectMessagesCreated(messages...)
-			ExpectReconcileSucceeded(ctx, controller, types.NamespacedName{})
+			ExpectSingletonReconciled(ctx, controller)
 			Expect(sqsapi.ReceiveMessageBehavior.SuccessfulCalls()).To(Equal(1))
 			ExpectNotFound(ctx, env.Client, lo.Map(nodeClaims, func(nc *corev1beta1.NodeClaim, _ int) client.Object { return nc })...)
 			Expect(sqsapi.DeleteMessageBehavior.SuccessfulCalls()).To(Equal(100))
@@ -199,15 +198,15 @@ var _ = Describe("InterruptionHandling", func() {
 
 			ExpectMessagesCreated(badMessage)
 
-			ExpectReconcileSucceeded(ctx, controller, types.NamespacedName{})
+			ExpectSingletonReconciled(ctx, controller)
 			Expect(sqsapi.ReceiveMessageBehavior.SuccessfulCalls()).To(Equal(1))
 			Expect(sqsapi.DeleteMessageBehavior.SuccessfulCalls()).To(Equal(1))
 		})
 		It("should delete a state change message when the state isn't in accepted states", func() {
 			ExpectMessagesCreated(stateChangeMessage(lo.Must(utils.ParseInstanceID(nodeClaim.Status.ProviderID)), "creating"))
 			ExpectApplied(ctx, env.Client, nodeClaim, node)
 
-			ExpectReconcileSucceeded(ctx, controller, types.NamespacedName{})
+			ExpectSingletonReconciled(ctx, controller)
 			Expect(sqsapi.ReceiveMessageBehavior.SuccessfulCalls()).To(Equal(1))
 			ExpectExists(ctx, env.Client, nodeClaim)
 			Expect(sqsapi.DeleteMessageBehavior.SuccessfulCalls()).To(Equal(1))
@@ -221,7 +220,7 @@ var _ = Describe("InterruptionHandling", func() {
 			ExpectMessagesCreated(spotInterruptionMessage(lo.Must(utils.ParseInstanceID(nodeClaim.Status.ProviderID))))
 			ExpectApplied(ctx, env.Client, nodeClaim, node)
 
-			ExpectReconcileSucceeded(ctx, controller, types.NamespacedName{})
+			ExpectSingletonReconciled(ctx, controller)
 			Expect(sqsapi.ReceiveMessageBehavior.SuccessfulCalls()).To(Equal(1))
 			ExpectNotFound(ctx, env.Client, nodeClaim)
 			Expect(sqsapi.DeleteMessageBehavior.SuccessfulCalls()).To(Equal(1))
@@ -235,15 +234,15 @@ var _ = Describe("InterruptionHandling", func() {
 var _ = Describe("Error Handling", func() {
 	It("should send an error on polling when QueueNotExists", func() {
 		sqsapi.ReceiveMessageBehavior.Error.Set(awsErrWithCode(servicesqs.ErrCodeQueueDoesNotExist), fake.MaxCalls(0))
-		ExpectReconcileFailed(ctx, controller, types.NamespacedName{})
+		_ = ExpectSingletonReconcileFailed(ctx, controller)
 	})
 	It("should send an error on polling when AccessDenied", func() {
 		sqsapi.ReceiveMessageBehavior.Error.Set(awsErrWithCode("AccessDenied"), fake.MaxCalls(0))
-		ExpectReconcileFailed(ctx, controller, types.NamespacedName{})
+		_ = ExpectSingletonReconcileFailed(ctx, controller)
 	})
 	It("should not return an error when deleting a nodeClaim that is already deleted", func() {
 		ExpectMessagesCreated(spotInterruptionMessage(fake.InstanceID()))
-		ExpectReconcileSucceeded(ctx, controller, types.NamespacedName{})
+		ExpectSingletonReconciled(ctx, controller)
 	})
 })
 

pkg/controllers/nodeclaim/garbagecollection/controller.go

@@ -19,20 +19,22 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/awslabs/operatorpkg/singleton"
 	"github.com/samber/lo"
 	"go.uber.org/multierr"
 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/client-go/util/workqueue"
 	"k8s.io/klog/v2"
+	controllerruntime "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/log"
 	"sigs.k8s.io/controller-runtime/pkg/manager"
 	"sigs.k8s.io/controller-runtime/pkg/reconcile"
 	"sigs.k8s.io/karpenter/pkg/cloudprovider"
+	"sigs.k8s.io/karpenter/pkg/operator/injection"
 
 	"sigs.k8s.io/karpenter/pkg/apis/v1beta1"
-	"sigs.k8s.io/karpenter/pkg/operator/controller"
 )
 
 type Controller struct {
@@ -49,7 +51,9 @@ func NewController(kubeClient client.Client, cloudProvider cloudprovider.CloudPr
 	}
 }
 
-func (c *Controller) Reconcile(ctx context.Context, _ reconcile.Request) (reconcile.Result, error) {
+func (c *Controller) Reconcile(ctx context.Context) (reconcile.Result, error) {
+	ctx = injection.WithControllerName(ctx, "nodeclaim.garbagecollection")
+
 	// We LIST machines on the CloudProvider BEFORE we grab Machines/Nodes on the cluster so that we make sure that, if
 	// LISTing instances takes a long time, our information is more updated by the time we get to Machine and Node LIST
 	// This works since our CloudProvider instances are deleted based on whether the Machine exists or not, not vise-versa
@@ -105,7 +109,8 @@ func (c *Controller) garbageCollect(ctx context.Context, nodeClaim *v1beta1.Node
 }
 
 func (c *Controller) Register(_ context.Context, m manager.Manager) error {
-	return controller.NewSingletonManagedBy(m).
+	return controllerruntime.NewControllerManagedBy(m).
 		Named("nodeclaim.garbagecollection").
-		Complete(c)
+		WatchesRawSource(singleton.Source()).
+		Complete(singleton.AsReconciler(c))
 }