feat: API support for selecting labels

2025-09-26 17:51:13 +08:00 · 2020-10-26 15:38:03 -07:00
parent 5de512136a
commit a756684ae5
10 changed files with 527 additions and 70 deletions
--- a/5
+++ b/5
@@ -33,6 +33,11 @@ docker-build:
 docker-push:
 	docker push onepanel/core:$(COMMIT_HASH)

+docker-custom:
+	docker build -t onepanel-core .
+	docker tag onepanel-core:latest onepanel/core:$(TAG)
+	docker push onepanel/core:$(TAG)
+
 docker: docker-build docker-push

 run-tests:
--- a/api/api.swagger.json
+++ b/api/api.swagger.json
@@ -3,7 +3,7 @@
  "info": {
    "title": "Onepanel",
    "description": "Onepanel API",
-    "version": "0.14.0",
+    "version": "0.15.0",
    "contact": {
      "name": "Onepanel project",
      "url": "https://github.com/onepanelio/core"
@@ -108,6 +108,54 @@
        ]
      }
    },
+    "/apis/v1beta1/labels/{namespace}/{resource}/labels": {
+      "get": {
+        "operationId": "GetAvailableLabels",
+        "responses": {
+          "200": {
+            "description": "A successful response.",
+            "schema": {
+              "$ref": "#/definitions/GetLabelsResponse"
+            }
+          },
+          "default": {
+            "description": "An unexpected error response",
+            "schema": {
+              "$ref": "#/definitions/grpc.gateway.runtime.Error"
+            }
+          }
+        },
+        "parameters": [
+          {
+            "name": "namespace",
+            "in": "path",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "name": "resource",
+            "in": "path",
+            "required": true,
+            "type": "string"
+          },
+          {
+            "name": "keyLike",
+            "in": "query",
+            "required": false,
+            "type": "string"
+          },
+          {
+            "name": "skipKeys",
+            "in": "query",
+            "required": false,
+            "type": "string"
+          }
+        ],
+        "tags": [
+          "LabelService"
+        ]
+      }
+    },
    "/apis/v1beta1/namespaces": {
      "get": {
        "operationId": "ListNamespaces",
--- a/api/label.pb.go
+++ b/api/label.pb.go
@@ -337,6 +337,77 @@ func (x *GetLabelsRequest) GetUid() string {
 	return ""
 }

+type GetAvailableLabelsRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Namespace string `protobuf:"bytes,1,opt,name=namespace,proto3" json:"namespace,omitempty"`
+	Resource  string `protobuf:"bytes,2,opt,name=resource,proto3" json:"resource,omitempty"`
+	KeyLike   string `protobuf:"bytes,3,opt,name=keyLike,proto3" json:"keyLike,omitempty"`
+	SkipKeys  string `protobuf:"bytes,4,opt,name=skipKeys,proto3" json:"skipKeys,omitempty"`
+}
+
+func (x *GetAvailableLabelsRequest) Reset() {
+	*x = GetAvailableLabelsRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_label_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *GetAvailableLabelsRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*GetAvailableLabelsRequest) ProtoMessage() {}
+
+func (x *GetAvailableLabelsRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_label_proto_msgTypes[5]
+	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 GetAvailableLabelsRequest.ProtoReflect.Descriptor instead.
+func (*GetAvailableLabelsRequest) Descriptor() ([]byte, []int) {
+	return file_label_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *GetAvailableLabelsRequest) GetNamespace() string {
+	if x != nil {
+		return x.Namespace
+	}
+	return ""
+}
+
+func (x *GetAvailableLabelsRequest) GetResource() string {
+	if x != nil {
+		return x.Resource
+	}
+	return ""
+}
+
+func (x *GetAvailableLabelsRequest) GetKeyLike() string {
+	if x != nil {
+		return x.KeyLike
+	}
+	return ""
+}
+
+func (x *GetAvailableLabelsRequest) GetSkipKeys() string {
+	if x != nil {
+		return x.SkipKeys
+	}
+	return ""
+}
+
 type GetLabelsResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -348,7 +419,7 @@ type GetLabelsResponse struct {
 func (x *GetLabelsResponse) Reset() {
 	*x = GetLabelsResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_label_proto_msgTypes[5]
+		mi := &file_label_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -361,7 +432,7 @@ func (x *GetLabelsResponse) String() string {
 func (*GetLabelsResponse) ProtoMessage() {}

 func (x *GetLabelsResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_label_proto_msgTypes[5]
+	mi := &file_label_proto_msgTypes[6]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -374,7 +445,7 @@ func (x *GetLabelsResponse) ProtoReflect() protoreflect.Message {

 // Deprecated: Use GetLabelsResponse.ProtoReflect.Descriptor instead.
 func (*GetLabelsResponse) Descriptor() ([]byte, []int) {
-	return file_label_proto_rawDescGZIP(), []int{5}
+	return file_label_proto_rawDescGZIP(), []int{6}
 }

 func (x *GetLabelsResponse) GetLabels() []*KeyValue {
@@ -398,7 +469,7 @@ type DeleteLabelRequest struct {
 func (x *DeleteLabelRequest) Reset() {
 	*x = DeleteLabelRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_label_proto_msgTypes[6]
+		mi := &file_label_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -411,7 +482,7 @@ func (x *DeleteLabelRequest) String() string {
 func (*DeleteLabelRequest) ProtoMessage() {}

 func (x *DeleteLabelRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_label_proto_msgTypes[6]
+	mi := &file_label_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -424,7 +495,7 @@ func (x *DeleteLabelRequest) ProtoReflect() protoreflect.Message {

 // Deprecated: Use DeleteLabelRequest.ProtoReflect.Descriptor instead.
 func (*DeleteLabelRequest) Descriptor() ([]byte, []int) {
-	return file_label_proto_rawDescGZIP(), []int{6}
+	return file_label_proto_rawDescGZIP(), []int{7}
 }

 func (x *DeleteLabelRequest) GetNamespace() string {
@@ -490,51 +561,69 @@ var file_label_proto_rawDesc = []byte{
 	0x73, 0x70, 0x61, 0x63, 0x65, 0x12, 0x1a, 0x0a, 0x08, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63,
 	0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x08, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63,
 	0x65, 0x12, 0x10, 0x0a, 0x03, 0x75, 0x69, 0x64, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03,
-	0x75, 0x69, 0x64, 0x22, 0x3a, 0x0a, 0x11, 0x47, 0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73,
-	0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x25, 0x0a, 0x06, 0x6c, 0x61, 0x62, 0x65,
-	0x6c, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x0d, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x4b,
-	0x65, 0x79, 0x56, 0x61, 0x6c, 0x75, 0x65, 0x52, 0x06, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x22,
-	0x72, 0x0a, 0x12, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x52, 0x65,
-	0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x1c, 0x0a, 0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61,
-	0x63, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70,
-	0x61, 0x63, 0x65, 0x12, 0x1a, 0x0a, 0x08, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x18,
-	0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x08, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x12,
-	0x10, 0x0a, 0x03, 0x75, 0x69, 0x64, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x75, 0x69,
-	0x64, 0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03,
-	0x6b, 0x65, 0x79, 0x32, 0x8d, 0x04, 0x0a, 0x0c, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x53, 0x65, 0x72,
-	0x76, 0x69, 0x63, 0x65, 0x12, 0x75, 0x0a, 0x09, 0x47, 0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c,
-	0x73, 0x12, 0x15, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x47, 0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c,
+	0x75, 0x69, 0x64, 0x22, 0x8b, 0x01, 0x0a, 0x19, 0x47, 0x65, 0x74, 0x41, 0x76, 0x61, 0x69, 0x6c,
+	0x61, 0x62, 0x6c, 0x65, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73,
+	0x74, 0x12, 0x1c, 0x0a, 0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x18, 0x01,
+	0x20, 0x01, 0x28, 0x09, 0x52, 0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x12,
+	0x1a, 0x0a, 0x08, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28,
+	0x09, 0x52, 0x08, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x6b,
+	0x65, 0x79, 0x4c, 0x69, 0x6b, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x6b, 0x65,
+	0x79, 0x4c, 0x69, 0x6b, 0x65, 0x12, 0x1a, 0x0a, 0x08, 0x73, 0x6b, 0x69, 0x70, 0x4b, 0x65, 0x79,
+	0x73, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x08, 0x73, 0x6b, 0x69, 0x70, 0x4b, 0x65, 0x79,
+	0x73, 0x22, 0x3a, 0x0a, 0x11, 0x47, 0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x52, 0x65,
+	0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x25, 0x0a, 0x06, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73,
+	0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x0d, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x4b, 0x65, 0x79,
+	0x56, 0x61, 0x6c, 0x75, 0x65, 0x52, 0x06, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x22, 0x72, 0x0a,
+	0x12, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x52, 0x65, 0x71, 0x75,
+	0x65, 0x73, 0x74, 0x12, 0x1c, 0x0a, 0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65,
+	0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x09, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63,
+	0x65, 0x12, 0x1a, 0x0a, 0x08, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x18, 0x02, 0x20,
+	0x01, 0x28, 0x09, 0x52, 0x08, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x12, 0x10, 0x0a,
+	0x03, 0x75, 0x69, 0x64, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x75, 0x69, 0x64, 0x12,
+	0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 0x6b, 0x65,
+	0x79, 0x32, 0x98, 0x05, 0x0a, 0x0c, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x53, 0x65, 0x72, 0x76, 0x69,
+	0x63, 0x65, 0x12, 0x88, 0x01, 0x0a, 0x12, 0x47, 0x65, 0x74, 0x41, 0x76, 0x61, 0x69, 0x6c, 0x61,
+	0x62, 0x6c, 0x65, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x12, 0x1e, 0x2e, 0x61, 0x70, 0x69, 0x2e,
+	0x47, 0x65, 0x74, 0x41, 0x76, 0x61, 0x69, 0x6c, 0x61, 0x62, 0x6c, 0x65, 0x4c, 0x61, 0x62, 0x65,
+	0x6c, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x16, 0x2e, 0x61, 0x70, 0x69, 0x2e,
+	0x47, 0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
+	0x65, 0x22, 0x3a, 0x82, 0xd3, 0xe4, 0x93, 0x02, 0x34, 0x12, 0x32, 0x2f, 0x61, 0x70, 0x69, 0x73,
+	0x2f, 0x76, 0x31, 0x62, 0x65, 0x74, 0x61, 0x31, 0x2f, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x2f,
+	0x7b, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x7d, 0x2f, 0x7b, 0x72, 0x65, 0x73,
+	0x6f, 0x75, 0x72, 0x63, 0x65, 0x7d, 0x2f, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x12, 0x75, 0x0a,
+	0x09, 0x47, 0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x12, 0x15, 0x2e, 0x61, 0x70, 0x69,
+	0x2e, 0x47, 0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73,
+	0x74, 0x1a, 0x16, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x47, 0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c,
+	0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x39, 0x82, 0xd3, 0xe4, 0x93, 0x02,
+	0x33, 0x12, 0x31, 0x2f, 0x61, 0x70, 0x69, 0x73, 0x2f, 0x76, 0x31, 0x62, 0x65, 0x74, 0x61, 0x31,
+	0x2f, 0x7b, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x7d, 0x2f, 0x7b, 0x72, 0x65,
+	0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x7d, 0x2f, 0x7b, 0x75, 0x69, 0x64, 0x7d, 0x2f, 0x6c, 0x61,
+	0x62, 0x65, 0x6c, 0x73, 0x12, 0x7d, 0x0a, 0x09, 0x41, 0x64, 0x64, 0x4c, 0x61, 0x62, 0x65, 0x6c,
+	0x73, 0x12, 0x15, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x41, 0x64, 0x64, 0x4c, 0x61, 0x62, 0x65, 0x6c,
 	0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x16, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x47,
 	0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65,
-	0x22, 0x39, 0x82, 0xd3, 0xe4, 0x93, 0x02, 0x33, 0x12, 0x31, 0x2f, 0x61, 0x70, 0x69, 0x73, 0x2f,
+	0x22, 0x41, 0x82, 0xd3, 0xe4, 0x93, 0x02, 0x3b, 0x22, 0x31, 0x2f, 0x61, 0x70, 0x69, 0x73, 0x2f,
 	0x76, 0x31, 0x62, 0x65, 0x74, 0x61, 0x31, 0x2f, 0x7b, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61,
 	0x63, 0x65, 0x7d, 0x2f, 0x7b, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x7d, 0x2f, 0x7b,
-	0x75, 0x69, 0x64, 0x7d, 0x2f, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x12, 0x7d, 0x0a, 0x09, 0x41,
-	0x64, 0x64, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x12, 0x15, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x41,
-	0x64, 0x64, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a,
-	0x16, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x47, 0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x52,
-	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x41, 0x82, 0xd3, 0xe4, 0x93, 0x02, 0x3b, 0x22,
-	0x31, 0x2f, 0x61, 0x70, 0x69, 0x73, 0x2f, 0x76, 0x31, 0x62, 0x65, 0x74, 0x61, 0x31, 0x2f, 0x7b,
-	0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x7d, 0x2f, 0x7b, 0x72, 0x65, 0x73, 0x6f,
-	0x75, 0x72, 0x63, 0x65, 0x7d, 0x2f, 0x7b, 0x75, 0x69, 0x64, 0x7d, 0x2f, 0x6c, 0x61, 0x62, 0x65,
-	0x6c, 0x73, 0x3a, 0x06, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x12, 0x85, 0x01, 0x0a, 0x0d, 0x52,
-	0x65, 0x70, 0x6c, 0x61, 0x63, 0x65, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x12, 0x19, 0x2e, 0x61,
-	0x70, 0x69, 0x2e, 0x52, 0x65, 0x70, 0x6c, 0x61, 0x63, 0x65, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73,
-	0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x16, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x47, 0x65,
-	0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22,
-	0x41, 0x82, 0xd3, 0xe4, 0x93, 0x02, 0x3b, 0x1a, 0x31, 0x2f, 0x61, 0x70, 0x69, 0x73, 0x2f, 0x76,
-	0x31, 0x62, 0x65, 0x74, 0x61, 0x31, 0x2f, 0x7b, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63,
-	0x65, 0x7d, 0x2f, 0x7b, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x7d, 0x2f, 0x7b, 0x75,
-	0x69, 0x64, 0x7d, 0x2f, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x3a, 0x06, 0x6c, 0x61, 0x62, 0x65,
-	0x6c, 0x73, 0x12, 0x7f, 0x0a, 0x0b, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x4c, 0x61, 0x62, 0x65,
-	0x6c, 0x12, 0x17, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x4c, 0x61,
-	0x62, 0x65, 0x6c, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x16, 0x2e, 0x61, 0x70, 0x69,
-	0x2e, 0x47, 0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e,
-	0x73, 0x65, 0x22, 0x3f, 0x82, 0xd3, 0xe4, 0x93, 0x02, 0x39, 0x2a, 0x37, 0x2f, 0x61, 0x70, 0x69,
-	0x73, 0x2f, 0x76, 0x31, 0x62, 0x65, 0x74, 0x61, 0x31, 0x2f, 0x7b, 0x6e, 0x61, 0x6d, 0x65, 0x73,
-	0x70, 0x61, 0x63, 0x65, 0x7d, 0x2f, 0x7b, 0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x7d,
-	0x2f, 0x7b, 0x75, 0x69, 0x64, 0x7d, 0x2f, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x2f, 0x7b, 0x6b,
-	0x65, 0x79, 0x7d, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x75, 0x69, 0x64, 0x7d, 0x2f, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x3a, 0x06, 0x6c, 0x61, 0x62,
+	0x65, 0x6c, 0x73, 0x12, 0x85, 0x01, 0x0a, 0x0d, 0x52, 0x65, 0x70, 0x6c, 0x61, 0x63, 0x65, 0x4c,
+	0x61, 0x62, 0x65, 0x6c, 0x73, 0x12, 0x19, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x52, 0x65, 0x70, 0x6c,
+	0x61, 0x63, 0x65, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
+	0x1a, 0x16, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x47, 0x65, 0x74, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x73,
+	0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x41, 0x82, 0xd3, 0xe4, 0x93, 0x02, 0x3b,
+	0x1a, 0x31, 0x2f, 0x61, 0x70, 0x69, 0x73, 0x2f, 0x76, 0x31, 0x62, 0x65, 0x74, 0x61, 0x31, 0x2f,
+	0x7b, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x7d, 0x2f, 0x7b, 0x72, 0x65, 0x73,
+	0x6f, 0x75, 0x72, 0x63, 0x65, 0x7d, 0x2f, 0x7b, 0x75, 0x69, 0x64, 0x7d, 0x2f, 0x6c, 0x61, 0x62,
+	0x65, 0x6c, 0x73, 0x3a, 0x06, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x12, 0x7f, 0x0a, 0x0b, 0x44,
+	0x65, 0x6c, 0x65, 0x74, 0x65, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x12, 0x17, 0x2e, 0x61, 0x70, 0x69,
+	0x2e, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x52, 0x65, 0x71, 0x75,
+	0x65, 0x73, 0x74, 0x1a, 0x16, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x47, 0x65, 0x74, 0x4c, 0x61, 0x62,
+	0x65, 0x6c, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x3f, 0x82, 0xd3, 0xe4,
+	0x93, 0x02, 0x39, 0x2a, 0x37, 0x2f, 0x61, 0x70, 0x69, 0x73, 0x2f, 0x76, 0x31, 0x62, 0x65, 0x74,
+	0x61, 0x31, 0x2f, 0x7b, 0x6e, 0x61, 0x6d, 0x65, 0x73, 0x70, 0x61, 0x63, 0x65, 0x7d, 0x2f, 0x7b,
+	0x72, 0x65, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x7d, 0x2f, 0x7b, 0x75, 0x69, 0x64, 0x7d, 0x2f,
+	0x6c, 0x61, 0x62, 0x65, 0x6c, 0x73, 0x2f, 0x7b, 0x6b, 0x65, 0x79, 0x7d, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
 }

 var (
@@ -549,31 +638,34 @@ func file_label_proto_rawDescGZIP() []byte {
 	return file_label_proto_rawDescData
 }

-var file_label_proto_msgTypes = make([]protoimpl.MessageInfo, 7)
+var file_label_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
 var file_label_proto_goTypes = []interface{}{
-	(*KeyValue)(nil),             // 0: api.KeyValue
-	(*Labels)(nil),               // 1: api.Labels
-	(*AddLabelsRequest)(nil),     // 2: api.AddLabelsRequest
-	(*ReplaceLabelsRequest)(nil), // 3: api.ReplaceLabelsRequest
-	(*GetLabelsRequest)(nil),     // 4: api.GetLabelsRequest
-	(*GetLabelsResponse)(nil),    // 5: api.GetLabelsResponse
-	(*DeleteLabelRequest)(nil),   // 6: api.DeleteLabelRequest
+	(*KeyValue)(nil),                  // 0: api.KeyValue
+	(*Labels)(nil),                    // 1: api.Labels
+	(*AddLabelsRequest)(nil),          // 2: api.AddLabelsRequest
+	(*ReplaceLabelsRequest)(nil),      // 3: api.ReplaceLabelsRequest
+	(*GetLabelsRequest)(nil),          // 4: api.GetLabelsRequest
+	(*GetAvailableLabelsRequest)(nil), // 5: api.GetAvailableLabelsRequest
+	(*GetLabelsResponse)(nil),         // 6: api.GetLabelsResponse
+	(*DeleteLabelRequest)(nil),        // 7: api.DeleteLabelRequest
 }
 var file_label_proto_depIdxs = []int32{
 	0, // 0: api.Labels.items:type_name -> api.KeyValue
 	1, // 1: api.AddLabelsRequest.labels:type_name -> api.Labels
 	1, // 2: api.ReplaceLabelsRequest.labels:type_name -> api.Labels
 	0, // 3: api.GetLabelsResponse.labels:type_name -> api.KeyValue
-	4, // 4: api.LabelService.GetLabels:input_type -> api.GetLabelsRequest
-	2, // 5: api.LabelService.AddLabels:input_type -> api.AddLabelsRequest
-	3, // 6: api.LabelService.ReplaceLabels:input_type -> api.ReplaceLabelsRequest
-	6, // 7: api.LabelService.DeleteLabel:input_type -> api.DeleteLabelRequest
-	5, // 8: api.LabelService.GetLabels:output_type -> api.GetLabelsResponse
-	5, // 9: api.LabelService.AddLabels:output_type -> api.GetLabelsResponse
-	5, // 10: api.LabelService.ReplaceLabels:output_type -> api.GetLabelsResponse
-	5, // 11: api.LabelService.DeleteLabel:output_type -> api.GetLabelsResponse
-	8, // [8:12] is the sub-list for method output_type
-	4, // [4:8] is the sub-list for method input_type
+	5, // 4: api.LabelService.GetAvailableLabels:input_type -> api.GetAvailableLabelsRequest
+	4, // 5: api.LabelService.GetLabels:input_type -> api.GetLabelsRequest
+	2, // 6: api.LabelService.AddLabels:input_type -> api.AddLabelsRequest
+	3, // 7: api.LabelService.ReplaceLabels:input_type -> api.ReplaceLabelsRequest
+	7, // 8: api.LabelService.DeleteLabel:input_type -> api.DeleteLabelRequest
+	6, // 9: api.LabelService.GetAvailableLabels:output_type -> api.GetLabelsResponse
+	6, // 10: api.LabelService.GetLabels:output_type -> api.GetLabelsResponse
+	6, // 11: api.LabelService.AddLabels:output_type -> api.GetLabelsResponse
+	6, // 12: api.LabelService.ReplaceLabels:output_type -> api.GetLabelsResponse
+	6, // 13: api.LabelService.DeleteLabel:output_type -> api.GetLabelsResponse
+	9, // [9:14] is the sub-list for method output_type
+	4, // [4:9] is the sub-list for method input_type
 	4, // [4:4] is the sub-list for extension type_name
 	4, // [4:4] is the sub-list for extension extendee
 	0, // [0:4] is the sub-list for field type_name
@@ -646,7 +738,7 @@ func file_label_proto_init() {
 			}
 		}
 		file_label_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*GetLabelsResponse); i {
+			switch v := v.(*GetAvailableLabelsRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -658,6 +750,18 @@ func file_label_proto_init() {
 			}
 		}
 		file_label_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*GetLabelsResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_label_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*DeleteLabelRequest); i {
 			case 0:
 				return &v.state
@@ -676,7 +780,7 @@ func file_label_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_label_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   7,
+			NumMessages:   8,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
@@ -702,6 +806,7 @@ const _ = grpc.SupportPackageIsVersion6
 //
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
 type LabelServiceClient interface {
+	GetAvailableLabels(ctx context.Context, in *GetAvailableLabelsRequest, opts ...grpc.CallOption) (*GetLabelsResponse, error)
 	GetLabels(ctx context.Context, in *GetLabelsRequest, opts ...grpc.CallOption) (*GetLabelsResponse, error)
 	AddLabels(ctx context.Context, in *AddLabelsRequest, opts ...grpc.CallOption) (*GetLabelsResponse, error)
 	ReplaceLabels(ctx context.Context, in *ReplaceLabelsRequest, opts ...grpc.CallOption) (*GetLabelsResponse, error)
@@ -716,6 +821,15 @@ func NewLabelServiceClient(cc grpc.ClientConnInterface) LabelServiceClient {
 	return &labelServiceClient{cc}
 }

+func (c *labelServiceClient) GetAvailableLabels(ctx context.Context, in *GetAvailableLabelsRequest, opts ...grpc.CallOption) (*GetLabelsResponse, error) {
+	out := new(GetLabelsResponse)
+	err := c.cc.Invoke(ctx, "/api.LabelService/GetAvailableLabels", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *labelServiceClient) GetLabels(ctx context.Context, in *GetLabelsRequest, opts ...grpc.CallOption) (*GetLabelsResponse, error) {
 	out := new(GetLabelsResponse)
 	err := c.cc.Invoke(ctx, "/api.LabelService/GetLabels", in, out, opts...)
@@ -754,6 +868,7 @@ func (c *labelServiceClient) DeleteLabel(ctx context.Context, in *DeleteLabelReq

 // LabelServiceServer is the server API for LabelService service.
 type LabelServiceServer interface {
+	GetAvailableLabels(context.Context, *GetAvailableLabelsRequest) (*GetLabelsResponse, error)
 	GetLabels(context.Context, *GetLabelsRequest) (*GetLabelsResponse, error)
 	AddLabels(context.Context, *AddLabelsRequest) (*GetLabelsResponse, error)
 	ReplaceLabels(context.Context, *ReplaceLabelsRequest) (*GetLabelsResponse, error)
@@ -764,6 +879,9 @@ type LabelServiceServer interface {
 type UnimplementedLabelServiceServer struct {
 }

+func (*UnimplementedLabelServiceServer) GetAvailableLabels(context.Context, *GetAvailableLabelsRequest) (*GetLabelsResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetAvailableLabels not implemented")
+}
 func (*UnimplementedLabelServiceServer) GetLabels(context.Context, *GetLabelsRequest) (*GetLabelsResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetLabels not implemented")
 }
@@ -781,6 +899,24 @@ func RegisterLabelServiceServer(s *grpc.Server, srv LabelServiceServer) {
 	s.RegisterService(&_LabelService_serviceDesc, srv)
 }

+func _LabelService_GetAvailableLabels_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(GetAvailableLabelsRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(LabelServiceServer).GetAvailableLabels(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/api.LabelService/GetAvailableLabels",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(LabelServiceServer).GetAvailableLabels(ctx, req.(*GetAvailableLabelsRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _LabelService_GetLabels_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(GetLabelsRequest)
 	if err := dec(in); err != nil {
@@ -857,6 +993,10 @@ var _LabelService_serviceDesc = grpc.ServiceDesc{
 	ServiceName: "api.LabelService",
 	HandlerType: (*LabelServiceServer)(nil),
 	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "GetAvailableLabels",
+			Handler:    _LabelService_GetAvailableLabels_Handler,
+		},
 		{
 			MethodName: "GetLabels",
 			Handler:    _LabelService_GetLabels_Handler,
--- a/api/label.pb.gw.go
+++ b/api/label.pb.gw.go
@@ -31,6 +31,97 @@ var _ = runtime.String
 var _ = utilities.NewDoubleArray
 var _ = descriptor.ForMessage

+var (
+	filter_LabelService_GetAvailableLabels_0 = &utilities.DoubleArray{Encoding: map[string]int{"namespace": 0, "resource": 1}, Base: []int{1, 1, 2, 0, 0}, Check: []int{0, 1, 1, 2, 3}}
+)
+
+func request_LabelService_GetAvailableLabels_0(ctx context.Context, marshaler runtime.Marshaler, client LabelServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetAvailableLabelsRequest
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["namespace"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "namespace")
+	}
+
+	protoReq.Namespace, err = runtime.String(val)
+
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "namespace", err)
+	}
+
+	val, ok = pathParams["resource"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "resource")
+	}
+
+	protoReq.Resource, err = runtime.String(val)
+
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "resource", err)
+	}
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_LabelService_GetAvailableLabels_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.GetAvailableLabels(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_LabelService_GetAvailableLabels_0(ctx context.Context, marshaler runtime.Marshaler, server LabelServiceServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq GetAvailableLabelsRequest
+	var metadata runtime.ServerMetadata
+
+	var (
+		val string
+		ok  bool
+		err error
+		_   = err
+	)
+
+	val, ok = pathParams["namespace"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "namespace")
+	}
+
+	protoReq.Namespace, err = runtime.String(val)
+
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "namespace", err)
+	}
+
+	val, ok = pathParams["resource"]
+	if !ok {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "missing parameter %s", "resource")
+	}
+
+	protoReq.Resource, err = runtime.String(val)
+
+	if err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "resource", err)
+	}
+
+	if err := runtime.PopulateQueryParameters(&protoReq, req.URL.Query(), filter_LabelService_GetAvailableLabels_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.GetAvailableLabels(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
 func request_LabelService_GetLabels_0(ctx context.Context, marshaler runtime.Marshaler, client LabelServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
 	var protoReq GetLabelsRequest
 	var metadata runtime.ServerMetadata
@@ -482,6 +573,26 @@ func local_request_LabelService_DeleteLabel_0(ctx context.Context, marshaler run
 // StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
 func RegisterLabelServiceHandlerServer(ctx context.Context, mux *runtime.ServeMux, server LabelServiceServer) error {

+	mux.Handle("GET", pattern_LabelService_GetAvailableLabels_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_LabelService_GetAvailableLabels_0(rctx, inboundMarshaler, server, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_LabelService_GetAvailableLabels_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
 	mux.Handle("GET", pattern_LabelService_GetLabels_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
@@ -603,6 +714,26 @@ func RegisterLabelServiceHandler(ctx context.Context, mux *runtime.ServeMux, con
 // "LabelServiceClient" to call the correct interceptors.
 func RegisterLabelServiceHandlerClient(ctx context.Context, mux *runtime.ServeMux, client LabelServiceClient) error {

+	mux.Handle("GET", pattern_LabelService_GetAvailableLabels_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_LabelService_GetAvailableLabels_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_LabelService_GetAvailableLabels_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
 	mux.Handle("GET", pattern_LabelService_GetLabels_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
@@ -687,6 +818,8 @@ func RegisterLabelServiceHandlerClient(ctx context.Context, mux *runtime.ServeMu
 }

 var (
+	pattern_LabelService_GetAvailableLabels_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 1, 0, 4, 1, 5, 3, 1, 0, 4, 1, 5, 4, 2, 2}, []string{"apis", "v1beta1", "labels", "namespace", "resource"}, "", runtime.AssumeColonVerbOpt(true)))
+
 	pattern_LabelService_GetLabels_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 1, 0, 4, 1, 5, 2, 1, 0, 4, 1, 5, 3, 1, 0, 4, 1, 5, 4, 2, 5}, []string{"apis", "v1beta1", "namespace", "resource", "uid", "labels"}, "", runtime.AssumeColonVerbOpt(true)))

 	pattern_LabelService_AddLabels_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 1, 0, 4, 1, 5, 2, 1, 0, 4, 1, 5, 3, 1, 0, 4, 1, 5, 4, 2, 5}, []string{"apis", "v1beta1", "namespace", "resource", "uid", "labels"}, "", runtime.AssumeColonVerbOpt(true)))
@@ -697,6 +830,8 @@ var (
 )

 var (
+	forward_LabelService_GetAvailableLabels_0 = runtime.ForwardResponseMessage
+
 	forward_LabelService_GetLabels_0 = runtime.ForwardResponseMessage

 	forward_LabelService_AddLabels_0 = runtime.ForwardResponseMessage
--- a/api/label.proto
+++ b/api/label.proto
@@ -5,6 +5,12 @@ package api;
 import "google/api/annotations.proto";

 service LabelService {
+    rpc GetAvailableLabels (GetAvailableLabelsRequest) returns (GetLabelsResponse) {
+        option (google.api.http) = {
+            get: "/apis/v1beta1/labels/{namespace}/{resource}/labels"
+        };
+    }
+
    rpc GetLabels (GetLabelsRequest) returns (GetLabelsResponse) {
        option (google.api.http) = {
            get: "/apis/v1beta1/{namespace}/{resource}/{uid}/labels"
@@ -61,6 +67,13 @@ message GetLabelsRequest {
    string uid = 3;
 }

+message GetAvailableLabelsRequest {
+    string namespace = 1;
+    string resource = 2;
+    string keyLike = 3;
+    string skipKeys = 4;
+}
+
 message GetLabelsResponse {
    repeated KeyValue labels = 1;
 }
--- a/pkg/filter.go
+++ b/pkg/filter.go
@@ -22,7 +22,7 @@ func ApplyLabelSelectQuery(labelSelector string, sb sq.SelectBuilder, filter Lab
 		return sb, err
 	}

-	sb = sb.Where("%v @> ?", labelSelector, labelsJSON)
+	sb = sb.Where(labelSelector+" @> ?", labelsJSON)

 	return sb, nil
 }
--- a/pkg/labels.go
+++ b/pkg/labels.go
@@ -8,8 +8,63 @@ import (
 	"github.com/onepanelio/core/pkg/util/mapping"
 	"github.com/onepanelio/core/pkg/util/types"
 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"strings"
 )

+// SelectLabelsQuery represents the options available to filter a select labels query
+type SelectLabelsQuery struct {
+	Table     string
+	Alias     string
+	Namespace string
+	KeyLike   string
+	Skip      []string
+}
+
+// SkipKeysFromString parses keys encoded in a string and returns an array of keys
+// The separator is ";"
+func SkipKeysFromString(keys string) []string {
+	results := make([]string, 0)
+	for _, key := range strings.Split(keys, ";") {
+		if key == "" {
+			continue
+		}
+
+		results = append(results, key)
+	}
+
+	return results
+}
+
+// SelectLabels returns a SelectBuilder that selects key, value columns from the criteria specified in query
+func SelectLabels(query *SelectLabelsQuery) sq.SelectBuilder {
+	// Sample query
+	// SELECT DISTINCT labels.*
+	//	FROM workflow_executions w,
+	//	jsonb_each_text(w.labels) labels
+	// WHERE labels.key LIKE 'ca%'
+	// AND labels.key NOT IN ('catdog')
+	// AND namespace = 'onepanel'
+
+	fromTable := fmt.Sprintf("%s %s", query.Table, query.Alias)
+	fromJsonb := fmt.Sprintf("jsonb_each_text(%s.labels) labels", query.Alias)
+
+	bld := sb.Select("key", "value").
+		Distinct().
+		From(fromTable + ", " + fromJsonb)
+
+	if query.Namespace != "" {
+		bld = bld.Where(sq.Eq{query.Alias + ".namespace": query.Namespace})
+	}
+	if query.KeyLike != "" {
+		bld = bld.Where(sq.Like{"labels.key": query.KeyLike})
+	}
+	if len(query.Skip) != 0 {
+		bld = bld.Where(sq.NotEq{"labels.key": query.Skip})
+	}
+
+	return bld
+}
+
 func (c *Client) ListLabels(resource string, uid string) (labels []*Label, err error) {
 	sb := sb.Select("labels").
 		From(TypeToTableName(resource))
@@ -49,6 +104,15 @@ func (c *Client) ListLabels(resource string, uid string) (labels []*Label, err e
 	return
 }

+// ListAvailableLabels lists the labels available for the resource specified by the query
+func (c *Client) ListAvailableLabels(query *SelectLabelsQuery) (result []*Label, err error) {
+	selectLabelsBuilder := SelectLabels(query)
+
+	err = c.Selectx(&result, selectLabelsBuilder)
+
+	return
+}
+
 func (c *Client) AddLabels(namespace, resource, uid string, keyValues map[string]string) error {
 	source, meta, err := c.GetK8sLabelResource(namespace, resource, uid)
 	if err != nil {
--- a/pkg/util/sql/sql.go
+++ b/pkg/util/sql/sql.go
@@ -1,6 +1,8 @@
 package sql

-import "fmt"
+import (
+	"fmt"
+)

 // FormatColumnSelect returns a list of column names to be used in a SQL Select modified with optional alias and destination.
 //
--- a/server/converter/converter.go
+++ b/server/converter/converter.go
@@ -37,6 +37,29 @@ func MappingToKeyValue(mapping map[string]string) []*api.KeyValue {
 	return keyValues
 }

+// LabelsToKeyValues converts []*v1.Label to []*api.Label
+func LabelsToKeyValues(labels []*v1.Label) []*api.KeyValue {
+	keyValues := make([]*api.KeyValue, 0)
+
+	for _, label := range labels {
+		keyValues = append(keyValues, LabelToKeyValue(label))
+	}
+
+	sort.Slice(keyValues, func(i, j int) bool {
+		return keyValues[i].Key < keyValues[j].Key
+	})
+
+	return keyValues
+}
+
+// LabelToKeyValue converts a *v1.Label to *api.Label
+func LabelToKeyValue(label *v1.Label) *api.KeyValue {
+	return &api.KeyValue{
+		Key:   label.Key,
+		Value: label.Value,
+	}
+}
+
 func ParameterOptionToAPI(option *v1.ParameterOption) *api.ParameterOption {
 	apiOption := &api.ParameterOption{
 		Name:  option.Name,
--- a/server/label_server.go
+++ b/server/label_server.go
@@ -5,6 +5,7 @@ import (
 	"github.com/onepanelio/core/api"
 	v1 "github.com/onepanelio/core/pkg"
 	"github.com/onepanelio/core/server/auth"
+	"github.com/onepanelio/core/server/converter"
 )

 func getGroupAndResourceByIdentifier(identifier string) (group, resource string) {
@@ -147,3 +148,29 @@ func (s *LabelServer) DeleteLabel(ctx context.Context, req *api.DeleteLabelReque
 		Labels: mapLabelsToKeyValue(labels),
 	}, nil
 }
+
+// GetAvailableLabels returns the labels available for a resource specified by the GetAvailableLabelsRequest
+func (s *LabelServer) GetAvailableLabels(ctx context.Context, req *api.GetAvailableLabelsRequest) (*api.GetLabelsResponse, error) {
+	group, resource := getGroupAndResourceByIdentifier(req.Resource)
+
+	client := getClient(ctx)
+	allowed, err := auth.IsAuthorized(client, req.Namespace, "get", group, resource, "")
+	if err != nil || !allowed {
+		return nil, err
+	}
+
+	labels, err := client.ListAvailableLabels(&v1.SelectLabelsQuery{
+		Table:     v1.TypeToTableName(req.Resource),
+		Alias:     "l",
+		Namespace: req.Namespace,
+		KeyLike:   req.KeyLike + "%",
+		Skip:      v1.SkipKeysFromString(req.SkipKeys),
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return &api.GetLabelsResponse{
+		Labels: converter.LabelsToKeyValues(labels),
+	}, nil
+}