rbd: VolumeGroupReplicationContent controller to regenerate the OMAP data

cmd/cephcsi.go

@@ -26,6 +26,7 @@ import (
 	"github.com/ceph/ceph-csi/internal/cephfs"
 	"github.com/ceph/ceph-csi/internal/controller"
 	"github.com/ceph/ceph-csi/internal/controller/persistentvolume"
+	"github.com/ceph/ceph-csi/internal/controller/volumegroup"
 	"github.com/ceph/ceph-csi/internal/liveness"
 	nfsdriver "github.com/ceph/ceph-csi/internal/nfs/driver"
 	rbddriver "github.com/ceph/ceph-csi/internal/rbd/driver"
@@ -289,6 +290,7 @@ func setPIDLimit(conf *util.Config) {
 func initControllers() {
 	// Add list of controller here.
 	persistentvolume.Init()
+	volumegroup.Init()
 }
 
 func validateCloneDepthFlag(conf *util.Config) {

go.mod

@@ -20,7 +20,7 @@ require (
 	github.com/kubernetes-csi/csi-lib-utils v0.18.1
 	github.com/kubernetes-csi/external-snapshotter/client/v7 v7.0.0
 	github.com/libopenstorage/secrets v0.0.0-20231011182615-5f4b25ceede1
-	github.com/onsi/ginkgo/v2 v2.19.1
+	github.com/onsi/ginkgo/v2 v2.20.0
 	github.com/onsi/gomega v1.34.1
 	github.com/pkg/xattr v0.4.10
 	github.com/prometheus/client_golang v1.19.1
@@ -48,8 +48,11 @@ require (
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.7.0
 	github.com/Azure/azure-sdk-for-go/sdk/security/keyvault/azsecrets v1.1.0
+	github.com/csi-addons/kubernetes-csi-addons v0.9.0
 )
 
+require github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
+
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.11.1 // indirect
 	github.com/Azure/azure-sdk-for-go/sdk/internal v1.8.0 // indirect
@@ -88,15 +91,14 @@ require (
 	github.com/go-openapi/jsonpointer v0.19.6 // indirect
 	github.com/go-openapi/jsonreference v0.20.2 // indirect
 	github.com/go-openapi/swag v0.22.4 // indirect
-	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang-jwt/jwt/v5 v5.2.1 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/google/cel-go v0.20.1 // indirect
 	github.com/google/gnostic-models v0.6.8 // indirect
 	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/google/gofuzz v1.2.0 // indirect
-	github.com/google/pprof v0.0.0-20240525223248-4bfdf5a9a2af // indirect
+	github.com/google/pprof v0.0.0-20240727154555-813a5fbdbec8 // indirect
 	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
@@ -156,14 +158,14 @@ require (
 	go.opentelemetry.io/otel/trace v1.28.0 // indirect
 	go.opentelemetry.io/proto/otlp v1.3.1 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	go.uber.org/zap v1.26.0 // indirect
+	go.uber.org/zap v1.27.0 // indirect
 	golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 // indirect
 	golang.org/x/oauth2 v0.21.0 // indirect
 	golang.org/x/sync v0.8.0 // indirect
 	golang.org/x/term v0.23.0 // indirect
 	golang.org/x/text v0.17.0 // indirect
 	golang.org/x/time v0.5.0 // indirect
-	golang.org/x/tools v0.23.0 // indirect
+	golang.org/x/tools v0.24.0 // indirect
 	gomodules.xyz/jsonpatch/v2 v2.4.0 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20240528184218-531527333157 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240701130421-f6361c86f094 // indirect

go.sum

@@ -1500,6 +1500,8 @@ github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46t
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/creack/pty v1.1.11/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/creack/pty v1.1.18/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
+github.com/csi-addons/kubernetes-csi-addons v0.9.0 h1:Hhb44WcrxtbzmpLY+uqX+DBWCI6HgA/rwQMPyvsyCc8=
+github.com/csi-addons/kubernetes-csi-addons v0.9.0/go.mod h1:/YROZDdEi1N/1Ls9rdU5W2VNjm8MK7HHApl8W4Sqt9s=
 github.com/csi-addons/spec v0.2.1-0.20240730084235-3958a5b17d24 h1:tJETaYbnnzlCSaqDXQzbszYyuAtG/sFzm6DargeVzJA=
 github.com/csi-addons/spec v0.2.1-0.20240730084235-3958a5b17d24/go.mod h1:Mwq4iLiUV4s+K1bszcWU6aMsR5KPsbIYzzszJ6+56vI=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -1770,8 +1772,9 @@ github.com/google/pprof v0.0.0-20210609004039-a478d1d731e9/go.mod h1:kpwsk12EmLe
 github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/pprof v0.0.0-20221118152302-e6195bd50e26/go.mod h1:dDKJzRmX4S37WGHujM7tX//fmj1uioxKzKxz3lo4HJo=
 github.com/google/pprof v0.0.0-20240424215950-a892ee059fd6/go.mod h1:kf6iHlnVGwgKolg33glAes7Yg/8iWP8ukqeldJSO7jw=
-github.com/google/pprof v0.0.0-20240525223248-4bfdf5a9a2af h1:kmjWCqn2qkEml422C2Rrd27c3VGxi6a/6HNq8QmHRKM=
 github.com/google/pprof v0.0.0-20240525223248-4bfdf5a9a2af/go.mod h1:K1liHPHnj73Fdn/EKuT8nrFqBihUSKXoLYU0BuatOYo=
+github.com/google/pprof v0.0.0-20240727154555-813a5fbdbec8 h1:FKHo8hFI3A+7w0aUQuYXQ+6EN5stWmeY/AZqtM8xk9k=
+github.com/google/pprof v0.0.0-20240727154555-813a5fbdbec8/go.mod h1:K1liHPHnj73Fdn/EKuT8nrFqBihUSKXoLYU0BuatOYo=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/google/s2a-go v0.1.0/go.mod h1:OJpEgntRZo8ugHpF9hkoLJbS5dSI20XZeXJ9JVywLlM=
 github.com/google/s2a-go v0.1.3/go.mod h1:Ej+mSEMGRnqRzjc7VtF+jdBwYG5fuJfiZ8ELkjEwM0A=
@@ -2072,8 +2075,8 @@ github.com/onsi/ginkgo/v2 v2.13.0/go.mod h1:TE309ZR8s5FsKKpuB1YAQYBzCaAfUgatB/xl
 github.com/onsi/ginkgo/v2 v2.17.1/go.mod h1:llBI3WDLL9Z6taip6f33H76YcWtJv+7R3HigUjbIBOs=
 github.com/onsi/ginkgo/v2 v2.17.2/go.mod h1:nP2DPOQoNsQmsVyv5rDA8JkXQoCs6goXIvr/PRJ1eCc=
 github.com/onsi/ginkgo/v2 v2.19.0/go.mod h1:rlwLi9PilAFJ8jCg9UE1QP6VBpd6/xj3SRC0d6TU0To=
-github.com/onsi/ginkgo/v2 v2.19.1 h1:QXgq3Z8Crl5EL1WBAC98A5sEBHARrAJNzAmMxzLcRF0=
-github.com/onsi/ginkgo/v2 v2.19.1/go.mod h1:O3DtEWQkPa/F7fBMgmZQKKsluAy8pd3rEQdrjkPb9zA=
+github.com/onsi/ginkgo/v2 v2.20.0 h1:PE84V2mHqoT1sglvHc8ZdQtPcwmvvt29WLEEO3xmdZw=
+github.com/onsi/ginkgo/v2 v2.20.0/go.mod h1:lG9ey2Z29hR41WMVthyJBGUBcBhGOtoPF2VFMvBXFCI=
 github.com/onsi/gomega v1.4.2/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
 github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
 github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
@@ -2399,8 +2402,9 @@ go.uber.org/zap v1.9.1/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
 go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo=
 go.uber.org/zap v1.18.1/go.mod h1:xg/QME4nWcxGxrpdeYfq7UvYrLh66cuVKdrbD1XF/NI=
-go.uber.org/zap v1.26.0 h1:sI7k6L95XOKS281NhVKOFCUNIvv9e0w4BF8N3u+tCRo=
 go.uber.org/zap v1.26.0/go.mod h1:dtElttAiwGvoJ/vj4IwHBS/gXsEu/pZ50mUIRWuG0so=
+go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
+go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
 golang.org/x/crypto v0.0.0-20180820150726-614d502a4dac/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@@ -2509,8 +2513,8 @@ golang.org/x/mod v0.13.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/mod v0.14.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/mod v0.15.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
-golang.org/x/mod v0.19.0 h1:fEdghXQSo20giMthA7cd28ZC+jts4amQ3YMXiP5oMQ8=
-golang.org/x/mod v0.19.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/mod v0.20.0 h1:utOm6MM3R3dnawAiJgn0y+xvuYRsm1RKM/4giyfDgV0=
+golang.org/x/mod v0.20.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -2944,8 +2948,8 @@ golang.org/x/tools v0.18.0/go.mod h1:GL7B4CwcLLeo59yx/9UWWuNOW1n3VZ4f5axWfML7Lcg
 golang.org/x/tools v0.20.0/go.mod h1:WvitBU7JJf6A4jOdg4S1tviW9bhUxkgeCui/0JHctQg=
 golang.org/x/tools v0.21.0/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
 golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
-golang.org/x/tools v0.23.0 h1:SGsXPZ+2l4JsgaCKkx+FQ9YZ5XEtA1GZYuoDjenLjvg=
-golang.org/x/tools v0.23.0/go.mod h1:pnu6ufv6vQkll6szChhK3C3L/ruaIv5eBeztNG8wtsI=
+golang.org/x/tools v0.24.0 h1:J1shsA93PJUEVaUSaay7UXAyE8aimq3GW0pjlolpa24=
+golang.org/x/tools v0.24.0/go.mod h1:YhNqVBIfWHdzvTLs0d8LCuMhkKUgSUKldakyV7W/WDQ=
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

internal/cephfs/store/volumegroup.go

@@ -245,7 +245,7 @@ func ReserveVolumeGroup(
 	defer j.Destroy()
 
 	groupUUID, vgsi.FsVolumeGroupSnapshotName, err = j.ReserveName(
-		ctx, volOptions.MetadataPool, volOptions.RequestName, volOptions.NamePrefix)
+		ctx, volOptions.MetadataPool, volOptions.RequestName, volOptions.ReservedID, volOptions.NamePrefix)
 	if err != nil {
 		return nil, err
 	}

internal/controller/controller.go

@@ -20,11 +20,16 @@ import (
 
 	"github.com/ceph/ceph-csi/internal/util/log"
 
+	apiruntime "k8s.io/apimachinery/pkg/runtime"
+	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
+	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
 	"k8s.io/client-go/tools/leaderelection/resourcelock"
 	clientConfig "sigs.k8s.io/controller-runtime/pkg/client/config"
 	"sigs.k8s.io/controller-runtime/pkg/manager"
 	"sigs.k8s.io/controller-runtime/pkg/manager/signals"
 	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
+
+	replicationv1alpha1 "github.com/csi-addons/kubernetes-csi-addons/api/replication.storage/v1alpha1"
 )
 
 // Manager is the interface that will wrap Add function.
@@ -60,6 +65,9 @@ func addToManager(mgr manager.Manager, config Config) error {
 
 // Start will start all the registered managers.
 func Start(config Config) error {
+	scheme := apiruntime.NewScheme()
+	utilruntime.Must(replicationv1alpha1.AddToScheme(scheme))
+	utilruntime.Must(clientgoscheme.AddToScheme(scheme))
 	electionID := config.DriverName + "-" + config.Namespace
 	opts := manager.Options{
 		LeaderElection: true,
@@ -68,6 +76,7 @@ func Start(config Config) error {
 		LeaderElectionNamespace:    config.Namespace,
 		LeaderElectionResourceLock: resourcelock.LeasesResourceLock,
 		LeaderElectionID:           electionID,
+		Scheme:                     scheme,
 	}
 	mgr, err := manager.New(clientConfig.GetConfigOrDie(), opts)
 	if err != nil {

internal/controller/volumegroup/volumegroupreplicationcontent.go

@@ -0,0 +1,200 @@
+/*
+Copyright 2024 The Ceph-CSI Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+package volumegroup
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	replicationv1alpha1 "github.com/csi-addons/kubernetes-csi-addons/api/replication.storage/v1alpha1"
+	corev1 "k8s.io/api/core/v1"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/types"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/controller"
+	"sigs.k8s.io/controller-runtime/pkg/handler"
+	"sigs.k8s.io/controller-runtime/pkg/manager"
+	"sigs.k8s.io/controller-runtime/pkg/reconcile"
+	"sigs.k8s.io/controller-runtime/pkg/source"
+
+	ctrl "github.com/ceph/ceph-csi/internal/controller"
+	"github.com/ceph/ceph-csi/internal/rbd"
+	"github.com/ceph/ceph-csi/internal/util"
+	"github.com/ceph/ceph-csi/internal/util/log"
+)
+
+type ReconcileVGRContent struct {
+	client client.Client
+	config ctrl.Config
+	Locks  *util.VolumeLocks
+}
+
+var (
+	_ reconcile.Reconciler = &ReconcileVGRContent{}
+	_ ctrl.Manager         = &ReconcileVGRContent{}
+)
+
+const (
+	secretNameParameterName      = "replication.storage.openshift.io/group-replication-secret-name"
+	secretNamespaceParameterName = "replication.storage.openshift.io/group-replication-secret-namespace"
+)
+
+// Init will add the ReconcileVGRContent to the list.
+func Init() {
+	// add ReconcileVGRContent to the list
+	ctrl.ControllerList = append(ctrl.ControllerList, &ReconcileVGRContent{})
+}
+
+// Add adds the newVGRContentReconciler.
+func (r *ReconcileVGRContent) Add(mgr manager.Manager, config ctrl.Config) error {
+	return add(mgr, newVGRContentReconciler(mgr, config))
+}
+
+// newVGRContentReconciler returns a ReconcileVGRContent.
+func newVGRContentReconciler(mgr manager.Manager, config ctrl.Config) reconcile.Reconciler {
+	r := &ReconcileVGRContent{
+		client: mgr.GetClient(),
+		config: config,
+		Locks:  util.NewVolumeLocks(),
+	}
+
+	return r
+}
+
+func add(mgr manager.Manager, r reconcile.Reconciler) error {
+	// Create a new controller
+	c, err := controller.New(
+		"vgrcontent-controller",
+		mgr,
+		controller.Options{MaxConcurrentReconciles: 1, Reconciler: r})
+	if err != nil {
+		return err
+	}
+
+	// Watch for changes to VolumeGroupReplicationContent
+	err = c.Watch(source.Kind(
+		mgr.GetCache(),
+		&replicationv1alpha1.VolumeGroupReplicationContent{},
+		&handler.TypedEnqueueRequestForObject[*replicationv1alpha1.VolumeGroupReplicationContent]{}),
+	)
+	if err != nil {
+		return fmt.Errorf("failed to watch the changes: %w", err)
+	}
+
+	return nil
+}
+
+func (r *ReconcileVGRContent) getSecrets(
+	ctx context.Context,
+	name,
+	namespace string,
+) (map[string]string, error) {
+	if name == "" || namespace == "" {
+		return nil, errors.New("secret name or secret namespace is empty")
+	}
+	secret := &corev1.Secret{}
+	err := r.client.Get(ctx, types.NamespacedName{Name: name, Namespace: namespace}, secret)
+	if err != nil {
+		return nil, fmt.Errorf("error getting secret %s in namespace %s: %w", name, namespace, err)
+	}
+
+	secrets := map[string]string{}
+	for key, value := range secret.Data {
+		secrets[key] = string(value)
+	}
+
+	return secrets, nil
+}
+
+func (r *ReconcileVGRContent) reconcileVGRContent(ctx context.Context, obj runtime.Object) error {
+	vgrc, ok := obj.(*replicationv1alpha1.VolumeGroupReplicationContent)
+	if !ok {
+		return nil
+	}
+	if vgrc.Spec.Provisioner != r.config.DriverName {
+		return nil
+	}
+
+	reqName := vgrc.Name
+	groupHandle := vgrc.Spec.VolumeGroupReplicationHandle
+	volumeIds := vgrc.Spec.Source.VolumeHandles
+
+	if groupHandle == "" {
+		return errors.New("volume group replication handle is empty")
+	}
+
+	vgrClass := &replicationv1alpha1.VolumeGroupReplicationClass{}
+	err := r.client.Get(ctx, types.NamespacedName{Name: vgrc.Spec.VolumeGroupReplicationClassName}, vgrClass)
+	if err != nil {
+		return err
+	}
+
+	if ok = r.Locks.TryAcquire(groupHandle); !ok {
+		return fmt.Errorf("failed to acquire lock for group handle %s", groupHandle)
+	}
+	defer r.Locks.Release(groupHandle)
+
+	parameters := vgrClass.Spec.Parameters
+	secretName := vgrClass.Spec.Parameters[secretNameParameterName]
+	secretNamespace := vgrClass.Spec.Parameters[secretNamespaceParameterName]
+
+	secrets, err := r.getSecrets(ctx, secretName, secretNamespace)
+	if err != nil {
+		return err
+	}
+
+	mgr := rbd.NewManager(r.config.InstanceID, parameters, secrets)
+	defer mgr.Destroy(ctx)
+
+	groupID, err := mgr.RegenerateVolumeGroupJournal(ctx, groupHandle, reqName, volumeIds)
+	if err != nil {
+		return err
+	}
+	if groupID != groupHandle {
+		log.DebugLog(ctx, "groupHandle changed from %s to %s", groupHandle, groupID)
+	}
+
+	return nil
+}
+
+// Reconcile reconciles the VolumeGroupReplicationContent object and creates a new omap entries
+// for the volume group.
+func (r *ReconcileVGRContent) Reconcile(ctx context.Context,
+	request reconcile.Request,
+) (reconcile.Result, error) {
+	vgrc := &replicationv1alpha1.VolumeGroupReplicationContent{}
+	err := r.client.Get(ctx, request.NamespacedName, vgrc)
+	if err != nil {
+		if apierrors.IsNotFound(err) {
+			return reconcile.Result{}, nil
+		}
+
+		return reconcile.Result{}, err
+	}
+	// Check if the object is under deletion
+	if !vgrc.GetDeletionTimestamp().IsZero() {
+		return reconcile.Result{}, nil
+	}
+
+	err = r.reconcileVGRContent(ctx, vgrc)
+	if err != nil {
+		return reconcile.Result{}, err
+	}
+
+	return reconcile.Result{}, nil
+}