diff --git a/cmd/lifecycle-service/main.go b/cmd/lifecycle-service/main.go
index 0bd8871..6cca383 100644
--- a/cmd/lifecycle-service/main.go
+++ b/cmd/lifecycle-service/main.go
@@ -5,6 +5,7 @@ package main
 
 import (
 	"flag"
+	"log/slog"
 	"os"
 
 	// Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.)
@@ -67,7 +68,7 @@ func main() {
 
 	serverOptions := server.Options{
 		Cfg:  mgr.GetConfig(),
-		Log:  mgr.GetLogger(),
+		Log:  setupLogger(),
 		Port: 25600,
 	}
 	if err = mgr.Add(server.NewLifecycleGRPCServer(serverOptions)); err != nil {
@@ -91,3 +92,10 @@ func main() {
 		os.Exit(1)
 	}
 }
+
+func setupLogger() *slog.Logger {
+	return slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
+		AddSource: true,
+		Level:     slog.LevelDebug,
+	}))
+}
diff --git a/go.mod b/go.mod
index c952f6f..89913b6 100644
--- a/go.mod
+++ b/go.mod
@@ -5,9 +5,11 @@ go 1.21
 toolchain go1.21.4
 
 require (
+	buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.32.0-20231115204500-e097f827e652.1
 	github.com/go-logr/logr v1.4.1
 	github.com/gogo/protobuf v1.3.2
 	github.com/google/uuid v1.6.0
+	github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.0.1
 	github.com/jellydator/ttlcache/v3 v3.1.1
 	github.com/onmetal/oob-operator v0.4.0
 	github.com/onsi/ginkgo/v2 v2.15.0
@@ -27,7 +29,9 @@ require (
 )
 
 require (
+	github.com/antlr4-go/antlr/v4 v4.13.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/bufbuild/protovalidate-go v0.5.0 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/emicklei/go-restful/v3 v3.11.2 // indirect
@@ -41,6 +45,7 @@ require (
 	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/cel-go v0.18.2 // 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
@@ -57,6 +62,7 @@ require (
 	github.com/prometheus/common v0.46.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/stoewer/go-strcase v1.3.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.26.0 // indirect
 	golang.org/x/exp v0.0.0-20240119083558-1b970713d09a // indirect
@@ -70,6 +76,7 @@ require (
 	golang.org/x/tools v0.17.0 // indirect
 	gomodules.xyz/jsonpatch/v2 v2.4.0 // indirect
 	google.golang.org/appengine v1.6.8 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20231106174013-bbf56f31fb17 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240125205218-1f4bbc51befe // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
diff --git a/go.sum b/go.sum
index 1ba2394..29d466d 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,13 @@
+buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.31.0-20230802163732-1c33ebd9ecfa.1 h1:tdpHgTbmbvEIARu+bixzmleMi14+3imnpoFXz+Qzjp4=
+buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.31.0-20230802163732-1c33ebd9ecfa.1/go.mod h1:xafc+XIsTxTy76GJQ1TKgvJWsSugFBqMaN27WhUblew=
+buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.32.0-20231115204500-e097f827e652.1 h1:u0olL4yf2p7Tl5jfsAK5keaFi+JFJuv1CDHrbiXkxkk=
+buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.32.0-20231115204500-e097f827e652.1/go.mod h1:tiTMKD8j6Pd/D2WzREoweufjzaJKHZg35f/VGcZ2v3I=
+github.com/antlr4-go/antlr/v4 v4.13.0 h1:lxCg3LAv+EUK6t1i0y1V6/SLeUi0eKEKdhQAlS8TVTI=
+github.com/antlr4-go/antlr/v4 v4.13.0/go.mod h1:pfChB/xh/Unjila75QW7+VU4TSnWnnk9UTnmpPaOR2g=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
+github.com/bufbuild/protovalidate-go v0.5.0 h1:xFery2RlLh07FQTvB7hlasKqPrDK2ug+uw6DUiuadjo=
+github.com/bufbuild/protovalidate-go v0.5.0/go.mod h1:3XAwFeJ2x9sXyPLgkxufH9sts1tQRk8fdt1AW93NiUU=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
@@ -36,6 +44,8 @@ github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaS
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
 github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/google/cel-go v0.18.2 h1:L0B6sNBSVmt0OyECi8v6VOS74KOc9W/tLiWKfZABvf4=
+github.com/google/cel-go v0.18.2/go.mod h1:kWcIzTsPX0zmQ+H3TirHstLLf9ep5QTsZBN9u4dOYLg=
 github.com/google/gnostic-models v0.6.8 h1:yo/ABAfM5IMRsS1VnXjTBvUb61tFIHozhlYvRgGre9I=
 github.com/google/gnostic-models v0.6.8/go.mod h1:5n7qKqH0f5wFt+aWF8CW6pZLLNOfYuF5OpfBSENuI8U=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
@@ -49,6 +59,8 @@ github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1 h1:K6RDEckDVWvDI9JAJY
 github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.0.1 h1:HcUWd006luQPljE73d5sk+/VgYPGUReEVz2y1/qylwY=
+github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.0.1/go.mod h1:w9Y7gY31krpLmrVU5ZPG9H7l9fZuRu5/3R3S3FMtVQ4=
 github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/imdario/mergo v0.3.16 h1:wwQJbIsHYGMUyLSPrEq1CT16AhnhNJQ51+4fdHUnCl4=
 github.com/imdario/mergo v0.3.16/go.mod h1:WBLT9ZmE3lPoWsEzCh9LPo3TiwVN+ZKEjmz+hD27ysY=
@@ -95,9 +107,16 @@ github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDN
 github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/stoewer/go-strcase v1.3.0 h1:g0eASXYtp+yvN9fK8sH94oCIk0fau9uV1/ZdJ0AVEzs=
+github.com/stoewer/go-strcase v1.3.0/go.mod h1:fAH5hQ5pehh+j3nZfvwdk2RgEgQjAoM8wodgtPmh1xo=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
@@ -175,12 +194,16 @@ gomodules.xyz/jsonpatch/v2 v2.4.0 h1:Ci3iUJyx9UeRx7CeFN8ARgGbkESwJK+KB9lLcWxY/Zw
 gomodules.xyz/jsonpatch/v2 v2.4.0/go.mod h1:AH3dM2RI6uoBZxn3LVrfvJ3E0/9dG4cSrbuBJT4moAY=
 google.golang.org/appengine v1.6.8 h1:IhEN5q69dyKagZPYMSdIjS2HqprW324FRQZJcGqPAsM=
 google.golang.org/appengine v1.6.8/go.mod h1:1jJ3jBArFh5pcgW8gCtRJnepW8FzD1V44FJffLiz/Ds=
+google.golang.org/genproto v0.0.0-20240116215550-a9fa1716bcac h1:ZL/Teoy/ZGnzyrqK/Optxxp2pmVh+fmJ97slxSRyzUg=
+google.golang.org/genproto/googleapis/api v0.0.0-20231106174013-bbf56f31fb17 h1:JpwMPBpFN3uKhdaekDpiNlImDdkUAyiJ6ez/uxGaUSo=
+google.golang.org/genproto/googleapis/api v0.0.0-20231106174013-bbf56f31fb17/go.mod h1:0xJLfVdJqpAPl8tDg1ujOCGzx6LFLttXT5NhllGOXY4=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20240125205218-1f4bbc51befe h1:bQnxqljG/wqi4NTXu2+DJ3n7APcEA882QZ1JvhQAq9o=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20240125205218-1f4bbc51befe/go.mod h1:PAREbraiVEVGVdTZsVWjSbbTtSyGbAgIIvni8a8CD5s=
 google.golang.org/grpc v1.61.0 h1:TOvOcuXn30kRao+gfcvsebNEa5iZIiLkisYEkf7R7o0=
 google.golang.org/grpc v1.61.0/go.mod h1:VUbo7IFqmF1QtCAstipjG0GIoq49KvMe9+h1jFLBNJs=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.32.0 h1:pPC6BG5ex8PDFnkbrGU3EixyhKcQ2aDuBS36lqK/C7I=
 google.golang.org/protobuf v1.32.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
diff --git a/lcmi/api/common/v1alpha1/api.pb.go b/lcmi/api/common/v1alpha1/api.pb.go
index 670d7fb..35a33fa 100644
--- a/lcmi/api/common/v1alpha1/api.pb.go
+++ b/lcmi/api/common/v1alpha1/api.pb.go
@@ -4,15 +4,15 @@
 // 	protoc        (unknown)
 // source: common/v1alpha1/api.proto
 
-package v1alpha1
+package commonv1alpha1
 
 import (
 	reflect "reflect"
 	sync "sync"
 
+	_ "buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go/buf/validate"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
 const (
@@ -123,69 +123,6 @@ func (ScanResult) EnumDescriptor() ([]byte, []int) {
 	return file_common_v1alpha1_api_proto_rawDescGZIP(), []int{1}
 }
 
-type Filter struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Name          string            `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
-	Namespace     string            `protobuf:"bytes,2,opt,name=namespace,proto3" json:"namespace,omitempty"`
-	LabelSelector *v1.LabelSelector `protobuf:"bytes,3,opt,name=label_selector,json=labelSelector,proto3" json:"label_selector,omitempty"`
-}
-
-func (x *Filter) Reset() {
-	*x = Filter{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_common_v1alpha1_api_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *Filter) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Filter) ProtoMessage() {}
-
-func (x *Filter) ProtoReflect() protoreflect.Message {
-	mi := &file_common_v1alpha1_api_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use Filter.ProtoReflect.Descriptor instead.
-func (*Filter) Descriptor() ([]byte, []int) {
-	return file_common_v1alpha1_api_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *Filter) GetName() string {
-	if x != nil {
-		return x.Name
-	}
-	return ""
-}
-
-func (x *Filter) GetNamespace() string {
-	if x != nil {
-		return x.Namespace
-	}
-	return ""
-}
-
-func (x *Filter) GetLabelSelector() *v1.LabelSelector {
-	if x != nil {
-		return x.LabelSelector
-	}
-	return nil
-}
-
 type PackageVersion struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -198,7 +135,7 @@ type PackageVersion struct {
 func (x *PackageVersion) Reset() {
 	*x = PackageVersion{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_common_v1alpha1_api_proto_msgTypes[1]
+		mi := &file_common_v1alpha1_api_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -211,7 +148,7 @@ func (x *PackageVersion) String() string {
 func (*PackageVersion) ProtoMessage() {}
 
 func (x *PackageVersion) ProtoReflect() protoreflect.Message {
-	mi := &file_common_v1alpha1_api_proto_msgTypes[1]
+	mi := &file_common_v1alpha1_api_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -224,7 +161,7 @@ func (x *PackageVersion) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use PackageVersion.ProtoReflect.Descriptor instead.
 func (*PackageVersion) Descriptor() ([]byte, []int) {
-	return file_common_v1alpha1_api_proto_rawDescGZIP(), []int{1}
+	return file_common_v1alpha1_api_proto_rawDescGZIP(), []int{0}
 }
 
 func (x *PackageVersion) GetName() string {
@@ -246,51 +183,51 @@ var File_common_v1alpha1_api_proto protoreflect.FileDescriptor
 var file_common_v1alpha1_api_proto_rawDesc = []byte{
 	0x0a, 0x19, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61,
 	0x31, 0x2f, 0x61, 0x70, 0x69, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0f, 0x63, 0x6f, 0x6d,
-	0x6d, 0x6f, 0x6e, 0x2e, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x1a, 0x34, 0x6b, 0x38,
-	0x73, 0x2e, 0x69, 0x6f, 0x2f, 0x61, 0x70, 0x69, 0x6d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x72,
-	0x79, 0x2f, 0x70, 0x6b, 0x67, 0x2f, 0x61, 0x70, 0x69, 0x73, 0x2f, 0x6d, 0x65, 0x74, 0x61, 0x2f,
-	0x76, 0x31, 0x2f, 0x67, 0x65, 0x6e, 0x65, 0x72, 0x61, 0x74, 0x65, 0x64, 0x2e, 0x70, 0x72, 0x6f,
-	0x74, 0x6f, 0x22, 0x96, 0x01, 0x0a, 0x06, 0x46, 0x69, 0x6c, 0x74, 0x65, 0x72, 0x12, 0x12, 0x0a,
-	0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d,
-	0x65, 0x12, 0x1c, 0x0a, 0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x18, 0x02,
-	0x20, 0x01, 0x28, 0x09, 0x52, 0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x12,
-	0x5a, 0x0a, 0x0e, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x5f, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f,
-	0x72, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x33, 0x2e, 0x6b, 0x38, 0x73, 0x2e, 0x69, 0x6f,
-	0x2e, 0x61, 0x70, 0x69, 0x6d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x72, 0x79, 0x2e, 0x70, 0x6b,
-	0x67, 0x2e, 0x61, 0x70, 0x69, 0x73, 0x2e, 0x6d, 0x65, 0x74, 0x61, 0x2e, 0x76, 0x31, 0x2e, 0x4c,
-	0x61, 0x62, 0x65, 0x6c, 0x53, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x52, 0x0d, 0x6c, 0x61,
-	0x62, 0x65, 0x6c, 0x53, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x22, 0x3e, 0x0a, 0x0e, 0x50,
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 }
 
 var (
@@ -306,21 +243,18 @@ func file_common_v1alpha1_api_proto_rawDescGZIP() []byte {
 }
 
 var file_common_v1alpha1_api_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
-var file_common_v1alpha1_api_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_common_v1alpha1_api_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
 var file_common_v1alpha1_api_proto_goTypes = []interface{}{
-	(RequestResult)(0),       // 0: common.v1alpha1.RequestResult
-	(ScanResult)(0),          // 1: common.v1alpha1.ScanResult
-	(*Filter)(nil),           // 2: common.v1alpha1.Filter
-	(*PackageVersion)(nil),   // 3: common.v1alpha1.PackageVersion
-	(*v1.LabelSelector)(nil), // 4: k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector
+	(RequestResult)(0),     // 0: common.v1alpha1.RequestResult
+	(ScanResult)(0),        // 1: common.v1alpha1.ScanResult
+	(*PackageVersion)(nil), // 2: common.v1alpha1.PackageVersion
 }
 var file_common_v1alpha1_api_proto_depIdxs = []int32{
-	4, // 0: common.v1alpha1.Filter.label_selector:type_name -> k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector
-	1, // [1:1] is the sub-list for method output_type
-	1, // [1:1] is the sub-list for method input_type
-	1, // [1:1] is the sub-list for extension type_name
-	1, // [1:1] is the sub-list for extension extendee
-	0, // [0:1] is the sub-list for field type_name
+	0, // [0:0] is the sub-list for method output_type
+	0, // [0:0] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
 }
 
 func init() { file_common_v1alpha1_api_proto_init() }
@@ -330,18 +264,6 @@ func file_common_v1alpha1_api_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_common_v1alpha1_api_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Filter); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_common_v1alpha1_api_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*PackageVersion); i {
 			case 0:
 				return &v.state
@@ -360,7 +282,7 @@ func file_common_v1alpha1_api_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_common_v1alpha1_api_proto_rawDesc,
 			NumEnums:      2,
-			NumMessages:   2,
+			NumMessages:   1,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
diff --git a/lcmi/api/machine/v1alpha1/api.pb.go b/lcmi/api/machine/v1alpha1/api.pb.go
index c41e926..03aba4c 100644
--- a/lcmi/api/machine/v1alpha1/api.pb.go
+++ b/lcmi/api/machine/v1alpha1/api.pb.go
@@ -4,7 +4,7 @@
 // 	protoc        (unknown)
 // source: machine/v1alpha1/api.proto
 
-package v1alpha1
+package machinev1alpha1
 
 import (
 	reflect "reflect"
@@ -250,7 +250,8 @@ type ListMachinesRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Filter *v1alpha1.Filter `protobuf:"bytes,1,opt,name=filter,proto3" json:"filter,omitempty"`
+	Namespace     string             `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
+	LabelSelector *v11.LabelSelector `protobuf:"bytes,2,opt,name=label_selector,json=labelSelector,proto3" json:"label_selector,omitempty"`
 }
 
 func (x *ListMachinesRequest) Reset() {
@@ -285,9 +286,16 @@ func (*ListMachinesRequest) Descriptor() ([]byte, []int) {
 	return file_machine_v1alpha1_api_proto_rawDescGZIP(), []int{3}
 }
 
-func (x *ListMachinesRequest) GetFilter() *v1alpha1.Filter {
+func (x *ListMachinesRequest) GetNamespace() string {
 	if x != nil {
-		return x.Filter
+		return x.Namespace
+	}
+	return ""
+}
+
+func (x *ListMachinesRequest) GetLabelSelector() *v11.LabelSelector {
+	if x != nil {
+		return x.LabelSelector
 	}
 	return nil
 }
@@ -1088,158 +1096,163 @@ var file_machine_v1alpha1_api_proto_rawDesc = []byte{
 	0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1f, 0x2e, 0x6d,
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 }
 
 var (
@@ -1281,7 +1294,7 @@ var file_machine_v1alpha1_api_proto_goTypes = []interface{}{
 	(*v11.Condition)(nil),                // 22: k8s.io.apimachinery.pkg.apis.meta.v1.Condition
 	(*v11.TypeMeta)(nil),                 // 23: k8s.io.apimachinery.pkg.apis.meta.v1.TypeMeta
 	(*v11.ObjectMeta)(nil),               // 24: k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta
-	(*v1alpha1.Filter)(nil),              // 25: common.v1alpha1.Filter
+	(*v11.LabelSelector)(nil),            // 25: k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector
 	(v1alpha1.RequestResult)(0),          // 26: common.v1alpha1.RequestResult
 }
 var file_machine_v1alpha1_api_proto_depIdxs = []int32{
@@ -1297,7 +1310,7 @@ var file_machine_v1alpha1_api_proto_depIdxs = []int32{
 	24, // 9: machine.v1alpha1.Machine.object_meta:type_name -> k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta
 	0,  // 10: machine.v1alpha1.Machine.spec:type_name -> machine.v1alpha1.MachineSpec
 	1,  // 11: machine.v1alpha1.Machine.status:type_name -> machine.v1alpha1.MachineStatus
-	25, // 12: machine.v1alpha1.ListMachinesRequest.filter:type_name -> common.v1alpha1.Filter
+	25, // 12: machine.v1alpha1.ListMachinesRequest.label_selector:type_name -> k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector
 	2,  // 13: machine.v1alpha1.ListMachinesResponse.machines:type_name -> machine.v1alpha1.Machine
 	26, // 14: machine.v1alpha1.ScanMachineResponse.result:type_name -> common.v1alpha1.RequestResult
 	19, // 15: machine.v1alpha1.InstallRequest.packages:type_name -> common.v1alpha1.PackageVersion
diff --git a/lcmi/api/machine/v1alpha1/api_grpc.pb.go b/lcmi/api/machine/v1alpha1/api_grpc.pb.go
index d1e0db9..f4c62d0 100644
--- a/lcmi/api/machine/v1alpha1/api_grpc.pb.go
+++ b/lcmi/api/machine/v1alpha1/api_grpc.pb.go
@@ -4,7 +4,7 @@
 // - protoc             (unknown)
 // source: machine/v1alpha1/api.proto
 
-package v1alpha1
+package machinev1alpha1
 
 import (
 	context "context"
diff --git a/lcmi/api/machinetype/v1alpha1/api.pb.go b/lcmi/api/machinetype/v1alpha1/api.pb.go
index 1571d96..0c20c45 100644
--- a/lcmi/api/machinetype/v1alpha1/api.pb.go
+++ b/lcmi/api/machinetype/v1alpha1/api.pb.go
@@ -4,7 +4,7 @@
 // 	protoc        (unknown)
 // source: machinetype/v1alpha1/api.proto
 
-package v1alpha1
+package machinetypev1alpha1
 
 import (
 	reflect "reflect"
@@ -359,7 +359,8 @@ type ListMachineTypesRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Filter *v1alpha1.Filter `protobuf:"bytes,1,opt,name=filter,proto3" json:"filter,omitempty"`
+	Namespace     string            `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
+	LabelSelector *v1.LabelSelector `protobuf:"bytes,2,opt,name=label_selector,json=labelSelector,proto3" json:"label_selector,omitempty"`
 }
 
 func (x *ListMachineTypesRequest) Reset() {
@@ -394,9 +395,16 @@ func (*ListMachineTypesRequest) Descriptor() ([]byte, []int) {
 	return file_machinetype_v1alpha1_api_proto_rawDescGZIP(), []int{5}
 }
 
-func (x *ListMachineTypesRequest) GetFilter() *v1alpha1.Filter {
+func (x *ListMachineTypesRequest) GetNamespace() string {
 	if x != nil {
-		return x.Filter
+		return x.Namespace
+	}
+	return ""
+}
+
+func (x *ListMachineTypesRequest) GetLabelSelector() *v1.LabelSelector {
+	if x != nil {
+		return x.LabelSelector
 	}
 	return nil
 }
@@ -992,128 +1000,134 @@ var file_machinetype_v1alpha1_api_proto_rawDesc = []byte{
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+	0x63, 0x68, 0x69, 0x6e, 0x65, 0x74, 0x79, 0x70, 0x65, 0x5c, 0x56, 0x31, 0x61, 0x6c, 0x70, 0x68,
+	0x61, 0x31, 0x5c, 0x47, 0x50, 0x42, 0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0xea, 0x02,
+	0x15, 0x4d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x74, 0x79, 0x70, 0x65, 0x3a, 0x3a, 0x56, 0x31,
+	0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1152,8 +1166,7 @@ var file_machinetype_v1alpha1_api_proto_goTypes = []interface{}{
 	(v1alpha1.ScanResult)(0),                // 19: common.v1alpha1.ScanResult
 	(*v1.TypeMeta)(nil),                     // 20: k8s.io.apimachinery.pkg.apis.meta.v1.TypeMeta
 	(*v1.ObjectMeta)(nil),                   // 21: k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta
-	(*v1alpha1.Filter)(nil),                 // 22: common.v1alpha1.Filter
-	(v1alpha1.RequestResult)(0),             // 23: common.v1alpha1.RequestResult
+	(v1alpha1.RequestResult)(0),             // 22: common.v1alpha1.RequestResult
 }
 var file_machinetype_v1alpha1_api_proto_depIdxs = []int32{
 	15, // 0: machinetype.v1alpha1.MachineGroup.machine_selector:type_name -> k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector
@@ -1167,15 +1180,15 @@ var file_machinetype_v1alpha1_api_proto_depIdxs = []int32{
 	21, // 8: machinetype.v1alpha1.MachineType.object_meta:type_name -> k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta
 	1,  // 9: machinetype.v1alpha1.MachineType.spec:type_name -> machinetype.v1alpha1.MachineTypeSpec
 	3,  // 10: machinetype.v1alpha1.MachineType.status:type_name -> machinetype.v1alpha1.MachineTypeStatus
-	22, // 11: machinetype.v1alpha1.ListMachineTypesRequest.filter:type_name -> common.v1alpha1.Filter
+	15, // 11: machinetype.v1alpha1.ListMachineTypesRequest.label_selector:type_name -> k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector
 	4,  // 12: machinetype.v1alpha1.ListMachineTypesResponse.machine_types:type_name -> machinetype.v1alpha1.MachineType
-	23, // 13: machinetype.v1alpha1.ScanResponse.result:type_name -> common.v1alpha1.RequestResult
+	22, // 13: machinetype.v1alpha1.ScanResponse.result:type_name -> common.v1alpha1.RequestResult
 	3,  // 14: machinetype.v1alpha1.ScanResponse.status:type_name -> machinetype.v1alpha1.MachineTypeStatus
 	3,  // 15: machinetype.v1alpha1.UpdateMachineTypeStatusRequest.status:type_name -> machinetype.v1alpha1.MachineTypeStatus
-	23, // 16: machinetype.v1alpha1.UpdateMachineTypeStatusResponse.result:type_name -> common.v1alpha1.RequestResult
+	22, // 16: machinetype.v1alpha1.UpdateMachineTypeStatusResponse.result:type_name -> common.v1alpha1.RequestResult
 	0,  // 17: machinetype.v1alpha1.AddMachineGroupRequest.machine_group:type_name -> machinetype.v1alpha1.MachineGroup
-	23, // 18: machinetype.v1alpha1.AddMachineGroupResponse.result:type_name -> common.v1alpha1.RequestResult
-	23, // 19: machinetype.v1alpha1.RemoveMachineGroupResponse.result:type_name -> common.v1alpha1.RequestResult
+	22, // 18: machinetype.v1alpha1.AddMachineGroupResponse.result:type_name -> common.v1alpha1.RequestResult
+	22, // 19: machinetype.v1alpha1.RemoveMachineGroupResponse.result:type_name -> common.v1alpha1.RequestResult
 	5,  // 20: machinetype.v1alpha1.MachineTypeService.ListMachineTypes:input_type -> machinetype.v1alpha1.ListMachineTypesRequest
 	7,  // 21: machinetype.v1alpha1.MachineTypeService.Scan:input_type -> machinetype.v1alpha1.ScanRequest
 	9,  // 22: machinetype.v1alpha1.MachineTypeService.UpdateMachineTypeStatus:input_type -> machinetype.v1alpha1.UpdateMachineTypeStatusRequest
diff --git a/lcmi/api/machinetype/v1alpha1/api_grpc.pb.go b/lcmi/api/machinetype/v1alpha1/api_grpc.pb.go
index 3bd55ec..9f481a5 100644
--- a/lcmi/api/machinetype/v1alpha1/api_grpc.pb.go
+++ b/lcmi/api/machinetype/v1alpha1/api_grpc.pb.go
@@ -4,7 +4,7 @@
 // - protoc             (unknown)
 // source: machinetype/v1alpha1/api.proto
 
-package v1alpha1
+package machinetypev1alpha1
 
 import (
 	context "context"
diff --git a/lcmi/api/storage/v1alpha1/api.pb.go b/lcmi/api/storage/v1alpha1/api.pb.go
index bf312b2..22dc32d 100644
--- a/lcmi/api/storage/v1alpha1/api.pb.go
+++ b/lcmi/api/storage/v1alpha1/api.pb.go
@@ -4,7 +4,7 @@
 // 	protoc        (unknown)
 // source: storage/v1alpha1/api.proto
 
-package v1alpha1
+package commonv1alpha1
 
 import (
 	reflect "reflect"
@@ -783,20 +783,20 @@ var file_storage_v1alpha1_api_proto_rawDesc = []byte{
 	0x6f, 0x77, 0x6e, 0x6c, 0x6f, 0x61, 0x64, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x21,
 	0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31,
 	0x2e, 0x44, 0x6f, 0x77, 0x6e, 0x6c, 0x6f, 0x61, 0x64, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
-	0x65, 0x22, 0x00, 0x30, 0x01, 0x42, 0xc1, 0x01, 0x0a, 0x13, 0x63, 0x6f, 0x6d, 0x2e, 0x63, 0x6f,
+	0x65, 0x22, 0x00, 0x30, 0x01, 0x42, 0xd0, 0x01, 0x0a, 0x13, 0x63, 0x6f, 0x6d, 0x2e, 0x63, 0x6f,
 	0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x42, 0x08, 0x41,
-	0x70, 0x69, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a, 0x43, 0x67, 0x69, 0x74, 0x68, 0x75,
+	0x70, 0x69, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a, 0x52, 0x67, 0x69, 0x74, 0x68, 0x75,
 	0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x69, 0x72, 0x6f, 0x6e, 0x63, 0x6f, 0x72, 0x65, 0x2d, 0x64,
 	0x65, 0x76, 0x2f, 0x6c, 0x69, 0x66, 0x65, 0x63, 0x79, 0x63, 0x6c, 0x65, 0x2d, 0x6d, 0x61, 0x6e,
 	0x61, 0x67, 0x65, 0x72, 0x2f, 0x6c, 0x63, 0x6d, 0x69, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x73, 0x74,
-	0x6f, 0x72, 0x61, 0x67, 0x65, 0x2f, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0xa2, 0x02,
-	0x03, 0x43, 0x58, 0x58, 0xaa, 0x02, 0x0f, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x56, 0x31,
-	0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0xca, 0x02, 0x0f, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x5c,
-	0x56, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0xe2, 0x02, 0x1b, 0x43, 0x6f, 0x6d, 0x6d, 0x6f,
-	0x6e, 0x5c, 0x56, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x5c, 0x47, 0x50, 0x42, 0x4d, 0x65,
-	0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0xea, 0x02, 0x10, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x3a,
-	0x3a, 0x56, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
-	0x33,
+	0x6f, 0x72, 0x61, 0x67, 0x65, 0x2f, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x3b, 0x63,
+	0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0xa2, 0x02, 0x03,
+	0x43, 0x58, 0x58, 0xaa, 0x02, 0x0f, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x56, 0x31, 0x61,
+	0x6c, 0x70, 0x68, 0x61, 0x31, 0xca, 0x02, 0x0f, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x5c, 0x56,
+	0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0xe2, 0x02, 0x1b, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e,
+	0x5c, 0x56, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x5c, 0x47, 0x50, 0x42, 0x4d, 0x65, 0x74,
+	0x61, 0x64, 0x61, 0x74, 0x61, 0xea, 0x02, 0x10, 0x43, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x3a, 0x3a,
+	0x56, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/lcmi/api/storage/v1alpha1/api_grpc.pb.go b/lcmi/api/storage/v1alpha1/api_grpc.pb.go
index 3d471f1..bb8c42b 100644
--- a/lcmi/api/storage/v1alpha1/api_grpc.pb.go
+++ b/lcmi/api/storage/v1alpha1/api_grpc.pb.go
@@ -4,7 +4,7 @@
 // - protoc             (unknown)
 // source: storage/v1alpha1/api.proto
 
-package v1alpha1
+package commonv1alpha1
 
 import (
 	context "context"
diff --git a/lcmi/server/interceptors.go b/lcmi/server/interceptors.go
new file mode 100644
index 0000000..4a4b5c8
--- /dev/null
+++ b/lcmi/server/interceptors.go
@@ -0,0 +1,47 @@
+// SPDX-FileCopyrightText: 2023 SAP SE or an SAP affiliate company and IronCore contributors
+// SPDX-License-Identifier: Apache-2.0
+
+package server
+
+import (
+	"context"
+	"log/slog"
+
+	protov "github.com/bufbuild/protovalidate-go"
+	"github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/logging"
+	"github.com/grpc-ecosystem/go-grpc-middleware/v2/interceptors/protovalidate"
+	"google.golang.org/grpc"
+)
+
+func UnaryServerValidatorInterceptor(val *protov.Validator) grpc.UnaryServerInterceptor {
+	return protovalidate.UnaryServerInterceptor(val)
+}
+
+func UnaryServerLoggerInterceptor(log *slog.Logger, opts ...logging.Option) grpc.UnaryServerInterceptor {
+	l := interceptLogger(log)
+	return logging.UnaryServerInterceptor(l, opts...)
+}
+
+func StreamServerValidatorInterceptor(val *protov.Validator) grpc.StreamServerInterceptor {
+	return protovalidate.StreamServerInterceptor(val)
+}
+
+func StreamServerLoggingInterceptor(log *slog.Logger, opts ...logging.Option) grpc.StreamServerInterceptor {
+	l := interceptLogger(log)
+	return logging.StreamServerInterceptor(l, opts...)
+}
+
+func interceptLogger(l *slog.Logger) logging.Logger {
+	return logging.LoggerFunc(func(_ context.Context, level logging.Level, msg string, fields ...any) {
+		switch level {
+		case logging.LevelDebug:
+			l.Debug(msg, fields...)
+		case logging.LevelInfo:
+			l.Info(msg, fields...)
+		case logging.LevelWarn:
+			l.Warn(msg, fields...)
+		case logging.LevelError:
+			l.Error(msg, fields...)
+		}
+	})
+}
diff --git a/lcmi/server/machine/service.go b/lcmi/server/machine/service.go
index 1b836c3..4973a77 100644
--- a/lcmi/server/machine/service.go
+++ b/lcmi/server/machine/service.go
@@ -84,16 +84,15 @@ func (s *GrpcService) ListMachines(
 	req *machinev1alpha1.ListMachinesRequest,
 ) (*machinev1alpha1.ListMachinesResponse, error) {
 	log := logr.FromContextOrDiscard(ctx)
-	if req.Filter == nil {
-		return nil, status.Error(codes.InvalidArgument, "filter is mandatory field")
-	}
-	namespace := req.Filter.Namespace
+	namespace := req.GetNamespace()
 	if namespace == "" {
 		namespace = s.namespace
 	}
+
 	opts := metav1.ListOptions{}
-	if req.Filter.LabelSelector != nil {
-		opts.LabelSelector = labels.Set(req.Filter.LabelSelector.MatchLabels).String()
+	reqSelector := req.GetLabelSelector()
+	if reqSelector != nil {
+		opts.LabelSelector = labels.Set(reqSelector.MatchLabels).String()
 	}
 	machines, err := s.cl.LifecycleV1alpha1().Machines(namespace).List(ctx, opts)
 	if err != nil {
diff --git a/lcmi/server/server.go b/lcmi/server/server.go
index f5ae320..9cf6e55 100644
--- a/lcmi/server/server.go
+++ b/lcmi/server/server.go
@@ -6,15 +6,14 @@ package server
 import (
 	"context"
 	"fmt"
+	"log/slog"
 	"net"
 	"time"
 
-	"github.com/go-logr/logr"
+	protov "github.com/bufbuild/protovalidate-go"
+	"github.com/jellydator/ttlcache/v3"
 	"google.golang.org/grpc"
 	"k8s.io/client-go/rest"
-	ctrl "sigs.k8s.io/controller-runtime"
-
-	"github.com/jellydator/ttlcache/v3"
 
 	machinev1alpha1 "github.com/ironcore-dev/lifecycle-manager/lcmi/api/machine/v1alpha1"
 	machinetypev1alpha1 "github.com/ironcore-dev/lifecycle-manager/lcmi/api/machinetype/v1alpha1"
@@ -27,7 +26,7 @@ import (
 const cacheCapacity = 1024
 
 type LifecycleGRPCServer struct {
-	log                    logr.Logger
+	log                    *slog.Logger
 	machineGrpcService     *machine.GrpcService
 	machinetypeGrpcService *machinetype.GrpcService
 	storageGrpcService     *storage.GrpcService
@@ -38,7 +37,7 @@ type LifecycleGRPCServer struct {
 
 type Options struct {
 	Cfg        *rest.Config
-	Log        logr.Logger
+	Log        *slog.Logger
 	Port       int
 	Namespace  string
 	ScanPeriod time.Duration
@@ -76,13 +75,26 @@ func NewLifecycleGRPCServer(opts Options) *LifecycleGRPCServer {
 func (s *LifecycleGRPCServer) Start(ctx context.Context) error {
 	listener, err := net.Listen("tcp", fmt.Sprintf(":%d", s.port))
 	if err != nil {
-		s.log.Error(err, "failed to bind port for listener", "port", s.port)
+		s.log.Error("failed to bind port for listener", "error", err.Error())
 		return err
 	}
 
-	// todo: run scheduler for scan/install jobs
+	validator, err := protov.New(protov.WithFailFast(true))
+	if err != nil {
+		s.log.Error("failed to create validator", "error", err.Error())
+		return err
+	}
 
-	srv := grpc.NewServer(grpc.UnaryInterceptor(s.addLogger))
+	srv := grpc.NewServer(
+		grpc.ChainUnaryInterceptor(
+			UnaryServerLoggerInterceptor(s.log),
+			UnaryServerValidatorInterceptor(validator),
+		),
+		grpc.ChainStreamInterceptor(
+			StreamServerLoggingInterceptor(s.log),
+			StreamServerValidatorInterceptor(validator),
+		),
+	)
 	machinev1alpha1.RegisterMachineServiceServer(srv, s.machineGrpcService)
 	machinetypev1alpha1.RegisterMachineTypeServiceServer(srv, s.machinetypeGrpcService)
 	storagev1alpha1.RegisterFirmwareStorageServiceServer(srv, s.storageGrpcService)
@@ -91,35 +103,20 @@ func (s *LifecycleGRPCServer) Start(ctx context.Context) error {
 		defer func() {
 			s.machineCache.Stop()
 			s.machinetypeCache.Stop()
-			s.log.V(0).Info("stopping server", "kind", "lifecycle-grpc-server")
+			s.log.Debug("stopping server", "kind", "lifecycle-grpc-server")
 			srv.GracefulStop()
-			s.log.V(0).Info("stopped")
+			s.log.Info("server stopped")
 		}()
 		<-ctx.Done()
 	}()
 
+	// todo: run scheduler for scan/install jobs
 	go s.machineCache.Start()
 	go s.machinetypeCache.Start()
 
-	s.log.V(0).Info("starting server", "kind", "lifecycle-grpc-server", "addr", listener.Addr().String())
+	s.log.Debug("starting server", "kind", "lifecycle-grpc-server", "addr", listener.Addr().String())
 	if err = srv.Serve(listener); err != nil {
-		s.log.Error(err, "failed to serve")
+		s.log.Error("failed to serve", "error", err.Error())
 	}
 	return nil
 }
-
-func (s *LifecycleGRPCServer) addLogger(
-	ctx context.Context,
-	req interface{},
-	info *grpc.UnaryServerInfo,
-	handler grpc.UnaryHandler,
-) (interface{}, error) {
-	log := s.log.WithName(info.FullMethod)
-	ctx = ctrl.LoggerInto(ctx, log)
-	log.V(0).Info("request")
-	resp, err := handler(ctx, req)
-	if err != nil {
-		log.Error(err, "failed to handle request")
-	}
-	return resp, err
-}
diff --git a/lcmi/server/storage/service.go b/lcmi/server/storage/service.go
index 65401b1..ed7917f 100644
--- a/lcmi/server/storage/service.go
+++ b/lcmi/server/storage/service.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 SAP SE or an SAP affiliate company and IronCore contributors
+// SPDX-License-Identifier: Apache-2.0
+
 package storage
 
 import (
diff --git a/proto/buf.gen.yaml b/proto/buf.gen.yaml
index 51d774a..dc5a063 100644
--- a/proto/buf.gen.yaml
+++ b/proto/buf.gen.yaml
@@ -1,6 +1,11 @@
 version: v1
 managed:
   enabled: true
+  go_package_prefix:
+    default: github.com/ironcore-dev/lifecycle-manager/lcmi/api
+    except:
+      - buf.build/bufbuild/protovalidate
+      - buf.build/k8s/api
 plugins:
   - plugin: buf.build/protocolbuffers/go:v1.32.0
     out: ../lcmi/api
diff --git a/proto/commonapi/buf.lock b/proto/commonapi/buf.lock
index 8efc15e..3ce75d9 100644
--- a/proto/commonapi/buf.lock
+++ b/proto/commonapi/buf.lock
@@ -2,7 +2,7 @@
 version: v1
 deps:
   - remote: buf.build
-    owner: k8s
-    repository: api
-    commit: 8f68e41b943c4de8a5e9c9a921c889a7
-    digest: shake256:38ab77d24cf737d1204719a0ffc654056c29499f26b1546cc5af9ddb34e33799930d79d1f5a4a04b0f5c149097eabbeed37a5d2abf9552169a7d52011f6a8d6f
+    owner: bufbuild
+    repository: protovalidate
+    commit: e097f827e65240ac9fd4b1158849a8fc
+    digest: shake256:f19252436fd9ded945631e2ffaaed28247a92c9015ccf55ae99db9fb3d9600c4fdb00fd2d3bd7701026ec2fd4715c5129e6ae517c25a59ba690020cfe80bf8ad
diff --git a/proto/commonapi/buf.yaml b/proto/commonapi/buf.yaml
index c5d2300..d661493 100644
--- a/proto/commonapi/buf.yaml
+++ b/proto/commonapi/buf.yaml
@@ -6,4 +6,4 @@ lint:
   use:
     - DEFAULT
 deps:
-  - buf.build/k8s/api
+  - buf.build/bufbuild/protovalidate
diff --git a/proto/commonapi/common/v1alpha1/api.proto b/proto/commonapi/common/v1alpha1/api.proto
index e68bb77..35d9401 100644
--- a/proto/commonapi/common/v1alpha1/api.proto
+++ b/proto/commonapi/common/v1alpha1/api.proto
@@ -2,7 +2,7 @@ syntax = "proto3";
 
 package common.v1alpha1;
 
-import "k8s.io/apimachinery/pkg/apis/meta/v1/generated.proto";
+import "buf/validate/validate.proto";
 
 option go_package = "github.com/ironcore-dev/lifecycle-manager/lcmi/api/common/v1alpha1";
 
@@ -19,13 +19,15 @@ enum ScanResult {
   SCAN_RESULT_FAILURE = 2;
 }
 
-message Filter {
-  string name = 1;
-  string namespace = 2;
-  k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector label_selector = 3;
-}
-
 message PackageVersion {
+  option (buf.validate.message).cel = {
+    id: "package_version.name",
+    expression: "!has(this.name) ? 'name is mandatory field' : ''"
+  };
+  option (buf.validate.message).cel = {
+    id: "package_version.version",
+    expression: "!has(this.version) ? 'version is mandatory field' : ''"
+  };
   string name = 1;
   string version = 2;
 }
\ No newline at end of file
diff --git a/proto/machineapi/buf.lock b/proto/machineapi/buf.lock
index 8efc15e..777eb40 100644
--- a/proto/machineapi/buf.lock
+++ b/proto/machineapi/buf.lock
@@ -1,6 +1,11 @@
 # Generated by buf. DO NOT EDIT.
 version: v1
 deps:
+  - remote: buf.build
+    owner: bufbuild
+    repository: protovalidate
+    commit: e097f827e65240ac9fd4b1158849a8fc
+    digest: shake256:f19252436fd9ded945631e2ffaaed28247a92c9015ccf55ae99db9fb3d9600c4fdb00fd2d3bd7701026ec2fd4715c5129e6ae517c25a59ba690020cfe80bf8ad
   - remote: buf.build
     owner: k8s
     repository: api
diff --git a/proto/machineapi/buf.yaml b/proto/machineapi/buf.yaml
index 99473d0..f2c3e77 100644
--- a/proto/machineapi/buf.yaml
+++ b/proto/machineapi/buf.yaml
@@ -6,4 +6,5 @@ lint:
   use:
     - DEFAULT
 deps:
-  - buf.build/k8s/api
\ No newline at end of file
+  - buf.build/k8s/api
+  - buf.build/bufbuild/protovalidate
\ No newline at end of file
diff --git a/proto/machineapi/machine/v1alpha1/api.proto b/proto/machineapi/machine/v1alpha1/api.proto
index 8800a0b..4e900f8 100644
--- a/proto/machineapi/machine/v1alpha1/api.proto
+++ b/proto/machineapi/machine/v1alpha1/api.proto
@@ -31,7 +31,8 @@ message Machine {
 }
 
 message ListMachinesRequest {
-  common.v1alpha1.Filter filter = 1;
+  string namespace = 1;
+  k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector label_selector = 2;
 }
 
 message ListMachinesResponse {
diff --git a/proto/machinetypeapi/buf.lock b/proto/machinetypeapi/buf.lock
index 8efc15e..777eb40 100644
--- a/proto/machinetypeapi/buf.lock
+++ b/proto/machinetypeapi/buf.lock
@@ -1,6 +1,11 @@
 # Generated by buf. DO NOT EDIT.
 version: v1
 deps:
+  - remote: buf.build
+    owner: bufbuild
+    repository: protovalidate
+    commit: e097f827e65240ac9fd4b1158849a8fc
+    digest: shake256:f19252436fd9ded945631e2ffaaed28247a92c9015ccf55ae99db9fb3d9600c4fdb00fd2d3bd7701026ec2fd4715c5129e6ae517c25a59ba690020cfe80bf8ad
   - remote: buf.build
     owner: k8s
     repository: api
diff --git a/proto/machinetypeapi/buf.yaml b/proto/machinetypeapi/buf.yaml
index c5d2300..b601607 100644
--- a/proto/machinetypeapi/buf.yaml
+++ b/proto/machinetypeapi/buf.yaml
@@ -7,3 +7,4 @@ lint:
     - DEFAULT
 deps:
   - buf.build/k8s/api
+  - buf.build/bufbuild/protovalidate
diff --git a/proto/machinetypeapi/machinetype/v1alpha1/api.proto b/proto/machinetypeapi/machinetype/v1alpha1/api.proto
index 44ac86a..3c236bb 100644
--- a/proto/machinetypeapi/machinetype/v1alpha1/api.proto
+++ b/proto/machinetypeapi/machinetype/v1alpha1/api.proto
@@ -40,7 +40,8 @@ message MachineType {
 }
 
 message ListMachineTypesRequest {
-  common.v1alpha1.Filter filter = 1;
+  string namespace = 1;
+  k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector label_selector = 2;
 }
 
 message ListMachineTypesResponse {
diff --git a/proto/storageapi/buf.lock b/proto/storageapi/buf.lock
index c91b581..3ce75d9 100644
--- a/proto/storageapi/buf.lock
+++ b/proto/storageapi/buf.lock
@@ -1,2 +1,8 @@
 # Generated by buf. DO NOT EDIT.
 version: v1
+deps:
+  - remote: buf.build
+    owner: bufbuild
+    repository: protovalidate
+    commit: e097f827e65240ac9fd4b1158849a8fc
+    digest: shake256:f19252436fd9ded945631e2ffaaed28247a92c9015ccf55ae99db9fb3d9600c4fdb00fd2d3bd7701026ec2fd4715c5129e6ae517c25a59ba690020cfe80bf8ad
diff --git a/proto/storageapi/buf.yaml b/proto/storageapi/buf.yaml
index 1a51945..d661493 100644
--- a/proto/storageapi/buf.yaml
+++ b/proto/storageapi/buf.yaml
@@ -5,3 +5,5 @@ breaking:
 lint:
   use:
     - DEFAULT
+deps:
+  - buf.build/bufbuild/protovalidate
diff --git a/util/apiutil/kubeapi.go b/util/apiutil/kubeapi.go
index 256addd..65d9a34 100644
--- a/util/apiutil/kubeapi.go
+++ b/util/apiutil/kubeapi.go
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: 2023 SAP SE or an SAP affiliate company and IronCore contributors
+// SPDX-License-Identifier: Apache-2.0
+
 package apiutil
 
 import (