diff --git a/go.mod b/go.mod
index 8f2bd9085..26859cb2e 100644
--- a/go.mod
+++ b/go.mod
@@ -100,8 +100,8 @@ require (
 	golang.org/x/tools v0.9.1 // indirect
 	gomodules.xyz/jsonpatch/v2 v2.3.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/genproto v0.0.0-20221202195650-67e5cbc046fd // indirect
-	google.golang.org/grpc v1.51.0 // indirect
+	google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f // indirect
+	google.golang.org/grpc v1.53.0 // indirect
 	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
diff --git a/go.sum b/go.sum
index bf76d132c..5a6999e64 100644
--- a/go.sum
+++ b/go.sum
@@ -20,8 +20,8 @@ cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvf
 cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
 cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
 cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
-cloud.google.com/go/compute v1.13.0 h1:AYrLkB8NPdDRslNp4Jxmzrhdr03fUAIDbiGFjLWowoU=
-cloud.google.com/go/compute/metadata v0.2.0 h1:nBbNSZyDpkNlo3DepaaLKVuO7ClyifSAmNloSCZrHnQ=
+cloud.google.com/go/compute v1.15.1 h1:7UGq3QknM33pw5xATlpzeoomNxsacIVvTqTTvbfajmE=
+cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
 cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
 cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
 cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
@@ -597,8 +597,8 @@ google.golang.org/genproto v0.0.0-20200804131852-c06518451d9c/go.mod h1:FWY/as6D
 google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20201019141844-1ed22bb0c154/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20211118181313-81c1377c94b1/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
-google.golang.org/genproto v0.0.0-20221202195650-67e5cbc046fd h1:OjndDrsik+Gt+e6fs45z9AxiewiKyLKYpA45W5Kpkks=
-google.golang.org/genproto v0.0.0-20221202195650-67e5cbc046fd/go.mod h1:cTsE614GARnxrLsqKREzmNYJACSWWpAWdNMwnD7c2BE=
+google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f h1:BWUVssLB0HVOSY78gIdvk1dTVYtT1y8SBWtPYuTJ/6w=
+google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f/go.mod h1:RGgjbofJ8xD9Sq1VVhDM1Vok1vRONV+rg+CjzG4SZKM=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
@@ -615,8 +615,8 @@ google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTp
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
 google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
 google.golang.org/grpc v1.42.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
-google.golang.org/grpc v1.51.0 h1:E1eGv1FTqoLIdnBCZufiSHgKjlqG6fKFf6pPWtMTh8U=
-google.golang.org/grpc v1.51.0/go.mod h1:wgNDFcnuBGmxLKI/qn4T+m5BtEBYXJPvibbUPsAIPww=
+google.golang.org/grpc v1.53.0 h1:LAv2ds7cmFV/XTS3XG1NneeENYrXGmorPxsBbptIjNc=
+google.golang.org/grpc v1.53.0/go.mod h1:OnIrk0ipVdj4N5d9IUoFUx72/VlD7+jUsHwZgwSMQpw=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
diff --git a/vendor/google.golang.org/genproto/googleapis/api/annotations/client.pb.go b/vendor/google.golang.org/genproto/googleapis/api/annotations/client.pb.go
index ec7c602ec..4c91534d5 100644
--- a/vendor/google.golang.org/genproto/googleapis/api/annotations/client.pb.go
+++ b/vendor/google.golang.org/genproto/googleapis/api/annotations/client.pb.go
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.18.1
+// 	protoc        v3.21.9
 // source: google/api/client.proto
 
 package annotations
@@ -163,6 +163,8 @@ type CommonLanguageSettings struct {
 
 	// Link to automatically generated reference documentation.  Example:
 	// https://cloud.google.com/nodejs/docs/reference/asset/latest
+	//
+	// Deprecated: Do not use.
 	ReferenceDocsUri string `protobuf:"bytes,1,opt,name=reference_docs_uri,json=referenceDocsUri,proto3" json:"reference_docs_uri,omitempty"`
 	// The destination where API teams want this client library to be published.
 	Destinations []ClientLibraryDestination `protobuf:"varint,2,rep,packed,name=destinations,proto3,enum=google.api.ClientLibraryDestination" json:"destinations,omitempty"`
@@ -200,6 +202,7 @@ func (*CommonLanguageSettings) Descriptor() ([]byte, []int) {
 	return file_google_api_client_proto_rawDescGZIP(), []int{0}
 }
 
+// Deprecated: Do not use.
 func (x *CommonLanguageSettings) GetReferenceDocsUri() string {
 	if x != nil {
 		return x.ReferenceDocsUri
@@ -1198,199 +1201,199 @@ var file_google_api_client_proto_rawDesc = []byte{
 	0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x64, 0x65, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x6f, 0x72,
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 }
 
 var (
diff --git a/vendor/google.golang.org/genproto/googleapis/api/expr/v1alpha1/syntax.pb.go b/vendor/google.golang.org/genproto/googleapis/api/expr/v1alpha1/syntax.pb.go
index e841579c8..63c1ad934 100644
--- a/vendor/google.golang.org/genproto/googleapis/api/expr/v1alpha1/syntax.pb.go
+++ b/vendor/google.golang.org/genproto/googleapis/api/expr/v1alpha1/syntax.pb.go
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.5
+// 	protoc        v3.21.9
 // source: google/api/expr/v1alpha1/syntax.proto
 
 package expr
@@ -883,6 +883,13 @@ type Expr_CreateList struct {
 
 	// The elements part of the list.
 	Elements []*Expr `protobuf:"bytes,1,rep,name=elements,proto3" json:"elements,omitempty"`
+	// The indices within the elements list which are marked as optional
+	// elements.
+	//
+	// When an optional-typed value is present, the value it contains
+	// is included in the list. If the optional-typed value is absent, the list
+	// element is omitted from the CreateList result.
+	OptionalIndices []int32 `protobuf:"varint,2,rep,packed,name=optional_indices,json=optionalIndices,proto3" json:"optional_indices,omitempty"`
 }
 
 func (x *Expr_CreateList) Reset() {
@@ -924,6 +931,13 @@ func (x *Expr_CreateList) GetElements() []*Expr {
 	return nil
 }
 
+func (x *Expr_CreateList) GetOptionalIndices() []int32 {
+	if x != nil {
+		return x.OptionalIndices
+	}
+	return nil
+}
+
 // A map or message creation expression.
 //
 // Maps are constructed as `{'key_name': 'value'}`. Message construction is
@@ -1262,7 +1276,7 @@ var file_google_api_expr_v1alpha1_syntax_proto_rawDesc = []byte{
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@@ -1315,129 +1329,132 @@ var file_google_api_expr_v1alpha1_syntax_proto_rawDesc = []byte{
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+	0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3a, 0x02, 0x38, 0x01, 0x22, 0x70, 0x0a, 0x0e, 0x53,
+	0x6f, 0x75, 0x72, 0x63, 0x65, 0x50, 0x6f, 0x73, 0x69, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x1a, 0x0a,
+	0x08, 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x08, 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x16, 0x0a, 0x06, 0x6f, 0x66, 0x66,
+	0x73, 0x65, 0x74, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x06, 0x6f, 0x66, 0x66, 0x73, 0x65,
+	0x74, 0x12, 0x12, 0x0a, 0x04, 0x6c, 0x69, 0x6e, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x05, 0x52,
+	0x04, 0x6c, 0x69, 0x6e, 0x65, 0x12, 0x16, 0x0a, 0x06, 0x63, 0x6f, 0x6c, 0x75, 0x6d, 0x6e, 0x18,
+	0x04, 0x20, 0x01, 0x28, 0x05, 0x52, 0x06, 0x63, 0x6f, 0x6c, 0x75, 0x6d, 0x6e, 0x42, 0x6e, 0x0a,
+	0x1c, 0x63, 0x6f, 0x6d, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x61, 0x70, 0x69, 0x2e,
+	0x65, 0x78, 0x70, 0x72, 0x2e, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x42, 0x0b, 0x53,
+	0x79, 0x6e, 0x74, 0x61, 0x78, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x50, 0x01, 0x5a, 0x3c, 0x67, 0x6f,
+	0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x67, 0x6f, 0x6c, 0x61, 0x6e, 0x67, 0x2e, 0x6f, 0x72, 0x67, 0x2f,
+	0x67, 0x65, 0x6e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x61,
+	0x70, 0x69, 0x73, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x65, 0x78, 0x70, 0x72, 0x2f, 0x76, 0x31, 0x61,
+	0x6c, 0x70, 0x68, 0x61, 0x31, 0x3b, 0x65, 0x78, 0x70, 0x72, 0xf8, 0x01, 0x01, 0x62, 0x06, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/vendor/google.golang.org/genproto/googleapis/rpc/errdetails/error_details.pb.go b/vendor/google.golang.org/genproto/googleapis/rpc/errdetails/error_details.pb.go
index 2f3ab9249..7bd161e48 100644
--- a/vendor/google.golang.org/genproto/googleapis/rpc/errdetails/error_details.pb.go
+++ b/vendor/google.golang.org/genproto/googleapis/rpc/errdetails/error_details.pb.go
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2022 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.12.2
+// 	protoc        v3.21.9
 // source: google/rpc/error_details.proto
 
 package errdetails
@@ -36,6 +36,112 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// Describes the cause of the error with structured details.
+//
+// Example of an error when contacting the "pubsub.googleapis.com" API when it
+// is not enabled:
+//
+//	{ "reason": "API_DISABLED"
+//	  "domain": "googleapis.com"
+//	  "metadata": {
+//	    "resource": "projects/123",
+//	    "service": "pubsub.googleapis.com"
+//	  }
+//	}
+//
+// This response indicates that the pubsub.googleapis.com API is not enabled.
+//
+// Example of an error that is returned when attempting to create a Spanner
+// instance in a region that is out of stock:
+//
+//	{ "reason": "STOCKOUT"
+//	  "domain": "spanner.googleapis.com",
+//	  "metadata": {
+//	    "availableRegions": "us-central1,us-east2"
+//	  }
+//	}
+type ErrorInfo struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// The reason of the error. This is a constant value that identifies the
+	// proximate cause of the error. Error reasons are unique within a particular
+	// domain of errors. This should be at most 63 characters and match a
+	// regular expression of `[A-Z][A-Z0-9_]+[A-Z0-9]`, which represents
+	// UPPER_SNAKE_CASE.
+	Reason string `protobuf:"bytes,1,opt,name=reason,proto3" json:"reason,omitempty"`
+	// The logical grouping to which the "reason" belongs. The error domain
+	// is typically the registered service name of the tool or product that
+	// generates the error. Example: "pubsub.googleapis.com". If the error is
+	// generated by some common infrastructure, the error domain must be a
+	// globally unique value that identifies the infrastructure. For Google API
+	// infrastructure, the error domain is "googleapis.com".
+	Domain string `protobuf:"bytes,2,opt,name=domain,proto3" json:"domain,omitempty"`
+	// Additional structured details about this error.
+	//
+	// Keys should match /[a-zA-Z0-9-_]/ and be limited to 64 characters in
+	// length. When identifying the current value of an exceeded limit, the units
+	// should be contained in the key, not the value.  For example, rather than
+	// {"instanceLimit": "100/request"}, should be returned as,
+	// {"instanceLimitPerRequest": "100"}, if the client exceeds the number of
+	// instances that can be created in a single (batch) request.
+	Metadata map[string]string `protobuf:"bytes,3,rep,name=metadata,proto3" json:"metadata,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+}
+
+func (x *ErrorInfo) Reset() {
+	*x = ErrorInfo{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_google_rpc_error_details_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ErrorInfo) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ErrorInfo) ProtoMessage() {}
+
+func (x *ErrorInfo) ProtoReflect() protoreflect.Message {
+	mi := &file_google_rpc_error_details_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 ErrorInfo.ProtoReflect.Descriptor instead.
+func (*ErrorInfo) Descriptor() ([]byte, []int) {
+	return file_google_rpc_error_details_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *ErrorInfo) GetReason() string {
+	if x != nil {
+		return x.Reason
+	}
+	return ""
+}
+
+func (x *ErrorInfo) GetDomain() string {
+	if x != nil {
+		return x.Domain
+	}
+	return ""
+}
+
+func (x *ErrorInfo) GetMetadata() map[string]string {
+	if x != nil {
+		return x.Metadata
+	}
+	return nil
+}
+
 // Describes when the clients can retry a failed request. Clients could ignore
 // the recommendation here or retry when this information is missing from error
 // responses.
@@ -61,7 +167,7 @@ type RetryInfo struct {
 func (x *RetryInfo) Reset() {
 	*x = RetryInfo{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_google_rpc_error_details_proto_msgTypes[0]
+		mi := &file_google_rpc_error_details_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -74,7 +180,7 @@ func (x *RetryInfo) String() string {
 func (*RetryInfo) ProtoMessage() {}
 
 func (x *RetryInfo) ProtoReflect() protoreflect.Message {
-	mi := &file_google_rpc_error_details_proto_msgTypes[0]
+	mi := &file_google_rpc_error_details_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -87,7 +193,7 @@ func (x *RetryInfo) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use RetryInfo.ProtoReflect.Descriptor instead.
 func (*RetryInfo) Descriptor() ([]byte, []int) {
-	return file_google_rpc_error_details_proto_rawDescGZIP(), []int{0}
+	return file_google_rpc_error_details_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *RetryInfo) GetRetryDelay() *durationpb.Duration {
@@ -112,7 +218,7 @@ type DebugInfo struct {
 func (x *DebugInfo) Reset() {
 	*x = DebugInfo{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_google_rpc_error_details_proto_msgTypes[1]
+		mi := &file_google_rpc_error_details_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -125,7 +231,7 @@ func (x *DebugInfo) String() string {
 func (*DebugInfo) ProtoMessage() {}
 
 func (x *DebugInfo) ProtoReflect() protoreflect.Message {
-	mi := &file_google_rpc_error_details_proto_msgTypes[1]
+	mi := &file_google_rpc_error_details_proto_msgTypes[2]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -138,7 +244,7 @@ func (x *DebugInfo) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DebugInfo.ProtoReflect.Descriptor instead.
 func (*DebugInfo) Descriptor() ([]byte, []int) {
-	return file_google_rpc_error_details_proto_rawDescGZIP(), []int{1}
+	return file_google_rpc_error_details_proto_rawDescGZIP(), []int{2}
 }
 
 func (x *DebugInfo) GetStackEntries() []string {
@@ -178,7 +284,7 @@ type QuotaFailure struct {
 func (x *QuotaFailure) Reset() {
 	*x = QuotaFailure{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_google_rpc_error_details_proto_msgTypes[2]
+		mi := &file_google_rpc_error_details_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -191,7 +297,7 @@ func (x *QuotaFailure) String() string {
 func (*QuotaFailure) ProtoMessage() {}
 
 func (x *QuotaFailure) ProtoReflect() protoreflect.Message {
-	mi := &file_google_rpc_error_details_proto_msgTypes[2]
+	mi := &file_google_rpc_error_details_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -204,7 +310,7 @@ func (x *QuotaFailure) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use QuotaFailure.ProtoReflect.Descriptor instead.
 func (*QuotaFailure) Descriptor() ([]byte, []int) {
-	return file_google_rpc_error_details_proto_rawDescGZIP(), []int{2}
+	return file_google_rpc_error_details_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *QuotaFailure) GetViolations() []*QuotaFailure_Violation {
@@ -214,111 +320,6 @@ func (x *QuotaFailure) GetViolations() []*QuotaFailure_Violation {
 	return nil
 }
 
-// Describes the cause of the error with structured details.
-//
-// Example of an error when contacting the "pubsub.googleapis.com" API when it
-// is not enabled:
-//
-//	{ "reason": "API_DISABLED"
-//	  "domain": "googleapis.com"
-//	  "metadata": {
-//	    "resource": "projects/123",
-//	    "service": "pubsub.googleapis.com"
-//	  }
-//	}
-//
-// This response indicates that the pubsub.googleapis.com API is not enabled.
-//
-// Example of an error that is returned when attempting to create a Spanner
-// instance in a region that is out of stock:
-//
-//	{ "reason": "STOCKOUT"
-//	  "domain": "spanner.googleapis.com",
-//	  "metadata": {
-//	    "availableRegions": "us-central1,us-east2"
-//	  }
-//	}
-type ErrorInfo struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	// The reason of the error. This is a constant value that identifies the
-	// proximate cause of the error. Error reasons are unique within a particular
-	// domain of errors. This should be at most 63 characters and match
-	// /[A-Z0-9_]+/.
-	Reason string `protobuf:"bytes,1,opt,name=reason,proto3" json:"reason,omitempty"`
-	// The logical grouping to which the "reason" belongs. The error domain
-	// is typically the registered service name of the tool or product that
-	// generates the error. Example: "pubsub.googleapis.com". If the error is
-	// generated by some common infrastructure, the error domain must be a
-	// globally unique value that identifies the infrastructure. For Google API
-	// infrastructure, the error domain is "googleapis.com".
-	Domain string `protobuf:"bytes,2,opt,name=domain,proto3" json:"domain,omitempty"`
-	// Additional structured details about this error.
-	//
-	// Keys should match /[a-zA-Z0-9-_]/ and be limited to 64 characters in
-	// length. When identifying the current value of an exceeded limit, the units
-	// should be contained in the key, not the value.  For example, rather than
-	// {"instanceLimit": "100/request"}, should be returned as,
-	// {"instanceLimitPerRequest": "100"}, if the client exceeds the number of
-	// instances that can be created in a single (batch) request.
-	Metadata map[string]string `protobuf:"bytes,3,rep,name=metadata,proto3" json:"metadata,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
-}
-
-func (x *ErrorInfo) Reset() {
-	*x = ErrorInfo{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_google_rpc_error_details_proto_msgTypes[3]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *ErrorInfo) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*ErrorInfo) ProtoMessage() {}
-
-func (x *ErrorInfo) ProtoReflect() protoreflect.Message {
-	mi := &file_google_rpc_error_details_proto_msgTypes[3]
-	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 ErrorInfo.ProtoReflect.Descriptor instead.
-func (*ErrorInfo) Descriptor() ([]byte, []int) {
-	return file_google_rpc_error_details_proto_rawDescGZIP(), []int{3}
-}
-
-func (x *ErrorInfo) GetReason() string {
-	if x != nil {
-		return x.Reason
-	}
-	return ""
-}
-
-func (x *ErrorInfo) GetDomain() string {
-	if x != nil {
-		return x.Domain
-	}
-	return ""
-}
-
-func (x *ErrorInfo) GetMetadata() map[string]string {
-	if x != nil {
-		return x.Metadata
-	}
-	return nil
-}
-
 // Describes what preconditions have failed.
 //
 // For example, if an RPC failed because it required the Terms of Service to be
@@ -495,7 +496,8 @@ type ResourceInfo struct {
 	ResourceType string `protobuf:"bytes,1,opt,name=resource_type,json=resourceType,proto3" json:"resource_type,omitempty"`
 	// The name of the resource being accessed.  For example, a shared calendar
 	// name: "example.com_4fghdhgsrgh@group.calendar.google.com", if the current
-	// error is [google.rpc.Code.PERMISSION_DENIED][google.rpc.Code.PERMISSION_DENIED].
+	// error is
+	// [google.rpc.Code.PERMISSION_DENIED][google.rpc.Code.PERMISSION_DENIED].
 	ResourceName string `protobuf:"bytes,2,opt,name=resource_name,json=resourceName,proto3" json:"resource_name,omitempty"`
 	// The owner of the resource (optional).
 	// For example, "user:<owner email>" or "project:<Google developer project
@@ -628,7 +630,7 @@ type LocalizedMessage struct {
 	unknownFields protoimpl.UnknownFields
 
 	// The locale used following the specification defined at
-	// http://www.rfc-editor.org/rfc/bcp/bcp47.txt.
+	// https://www.rfc-editor.org/rfc/bcp/bcp47.txt.
 	// Examples are: "en-US", "fr-CH", "es-MX"
 	Locale string `protobuf:"bytes,1,opt,name=locale,proto3" json:"locale,omitempty"`
 	// The localized error message in the above locale.
@@ -705,7 +707,7 @@ type QuotaFailure_Violation struct {
 func (x *QuotaFailure_Violation) Reset() {
 	*x = QuotaFailure_Violation{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_google_rpc_error_details_proto_msgTypes[10]
+		mi := &file_google_rpc_error_details_proto_msgTypes[11]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -718,7 +720,7 @@ func (x *QuotaFailure_Violation) String() string {
 func (*QuotaFailure_Violation) ProtoMessage() {}
 
 func (x *QuotaFailure_Violation) ProtoReflect() protoreflect.Message {
-	mi := &file_google_rpc_error_details_proto_msgTypes[10]
+	mi := &file_google_rpc_error_details_proto_msgTypes[11]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -731,7 +733,7 @@ func (x *QuotaFailure_Violation) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use QuotaFailure_Violation.ProtoReflect.Descriptor instead.
 func (*QuotaFailure_Violation) Descriptor() ([]byte, []int) {
-	return file_google_rpc_error_details_proto_rawDescGZIP(), []int{2, 0}
+	return file_google_rpc_error_details_proto_rawDescGZIP(), []int{3, 0}
 }
 
 func (x *QuotaFailure_Violation) GetSubject() string {
@@ -828,9 +830,43 @@ type BadRequest_FieldViolation struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// A path leading to a field in the request body. The value will be a
+	// A path that leads to a field in the request body. The value will be a
 	// sequence of dot-separated identifiers that identify a protocol buffer
-	// field. E.g., "field_violations.field" would identify this field.
+	// field.
+	//
+	// Consider the following:
+	//
+	//	message CreateContactRequest {
+	//	  message EmailAddress {
+	//	    enum Type {
+	//	      TYPE_UNSPECIFIED = 0;
+	//	      HOME = 1;
+	//	      WORK = 2;
+	//	    }
+	//
+	//	    optional string email = 1;
+	//	    repeated EmailType type = 2;
+	//	  }
+	//
+	//	  string full_name = 1;
+	//	  repeated EmailAddress email_addresses = 2;
+	//	}
+	//
+	// In this example, in proto `field` could take one of the following values:
+	//
+	//   - `full_name` for a violation in the `full_name` value
+	//   - `email_addresses[1].email` for a violation in the `email` field of the
+	//     first `email_addresses` message
+	//   - `email_addresses[3].type[2]` for a violation in the second `type`
+	//     value in the third `email_addresses` message.
+	//
+	// In JSON, the same values are represented as:
+	//
+	//   - `fullName` for a violation in the `fullName` value
+	//   - `emailAddresses[1].email` for a violation in the `email` field of the
+	//     first `emailAddresses` message
+	//   - `emailAddresses[3].type[2]` for a violation in the second `type`
+	//     value in the third `emailAddresses` message.
 	Field string `protobuf:"bytes,1,opt,name=field,proto3" json:"field,omitempty"`
 	// A description of why the request element is bad.
 	Description string `protobuf:"bytes,2,opt,name=description,proto3" json:"description,omitempty"`
@@ -947,38 +983,38 @@ var file_google_rpc_error_details_proto_rawDesc = []byte{
 	0x6f, 0x72, 0x5f, 0x64, 0x65, 0x74, 0x61, 0x69, 0x6c, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
 	0x12, 0x0a, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x72, 0x70, 0x63, 0x1a, 0x1e, 0x67, 0x6f,
 	0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x64, 0x75,
-	0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x47, 0x0a, 0x09,
-	0x52, 0x65, 0x74, 0x72, 0x79, 0x49, 0x6e, 0x66, 0x6f, 0x12, 0x3a, 0x0a, 0x0b, 0x72, 0x65, 0x74,
-	0x72, 0x79, 0x5f, 0x64, 0x65, 0x6c, 0x61, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x19,
-	0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66,
-	0x2e, 0x44, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x0a, 0x72, 0x65, 0x74, 0x72, 0x79,
-	0x44, 0x65, 0x6c, 0x61, 0x79, 0x22, 0x48, 0x0a, 0x09, 0x44, 0x65, 0x62, 0x75, 0x67, 0x49, 0x6e,
-	0x66, 0x6f, 0x12, 0x23, 0x0a, 0x0d, 0x73, 0x74, 0x61, 0x63, 0x6b, 0x5f, 0x65, 0x6e, 0x74, 0x72,
-	0x69, 0x65, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x09, 0x52, 0x0c, 0x73, 0x74, 0x61, 0x63, 0x6b,
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 	0x65, 0x12, 0x49, 0x0a, 0x0a, 0x76, 0x69, 0x6f, 0x6c, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18,
 	0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x29, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x72,
@@ -1051,27 +1087,27 @@ func file_google_rpc_error_details_proto_rawDescGZIP() []byte {
 
 var file_google_rpc_error_details_proto_msgTypes = make([]protoimpl.MessageInfo, 15)
 var file_google_rpc_error_details_proto_goTypes = []interface{}{
-	(*RetryInfo)(nil),                     // 0: google.rpc.RetryInfo
-	(*DebugInfo)(nil),                     // 1: google.rpc.DebugInfo
-	(*QuotaFailure)(nil),                  // 2: google.rpc.QuotaFailure
-	(*ErrorInfo)(nil),                     // 3: google.rpc.ErrorInfo
+	(*ErrorInfo)(nil),                     // 0: google.rpc.ErrorInfo
+	(*RetryInfo)(nil),                     // 1: google.rpc.RetryInfo
+	(*DebugInfo)(nil),                     // 2: google.rpc.DebugInfo
+	(*QuotaFailure)(nil),                  // 3: google.rpc.QuotaFailure
 	(*PreconditionFailure)(nil),           // 4: google.rpc.PreconditionFailure
 	(*BadRequest)(nil),                    // 5: google.rpc.BadRequest
 	(*RequestInfo)(nil),                   // 6: google.rpc.RequestInfo
 	(*ResourceInfo)(nil),                  // 7: google.rpc.ResourceInfo
 	(*Help)(nil),                          // 8: google.rpc.Help
 	(*LocalizedMessage)(nil),              // 9: google.rpc.LocalizedMessage
-	(*QuotaFailure_Violation)(nil),        // 10: google.rpc.QuotaFailure.Violation
-	nil,                                   // 11: google.rpc.ErrorInfo.MetadataEntry
+	nil,                                   // 10: google.rpc.ErrorInfo.MetadataEntry
+	(*QuotaFailure_Violation)(nil),        // 11: google.rpc.QuotaFailure.Violation
 	(*PreconditionFailure_Violation)(nil), // 12: google.rpc.PreconditionFailure.Violation
 	(*BadRequest_FieldViolation)(nil),     // 13: google.rpc.BadRequest.FieldViolation
 	(*Help_Link)(nil),                     // 14: google.rpc.Help.Link
 	(*durationpb.Duration)(nil),           // 15: google.protobuf.Duration
 }
 var file_google_rpc_error_details_proto_depIdxs = []int32{
-	15, // 0: google.rpc.RetryInfo.retry_delay:type_name -> google.protobuf.Duration
-	10, // 1: google.rpc.QuotaFailure.violations:type_name -> google.rpc.QuotaFailure.Violation
-	11, // 2: google.rpc.ErrorInfo.metadata:type_name -> google.rpc.ErrorInfo.MetadataEntry
+	10, // 0: google.rpc.ErrorInfo.metadata:type_name -> google.rpc.ErrorInfo.MetadataEntry
+	15, // 1: google.rpc.RetryInfo.retry_delay:type_name -> google.protobuf.Duration
+	11, // 2: google.rpc.QuotaFailure.violations:type_name -> google.rpc.QuotaFailure.Violation
 	12, // 3: google.rpc.PreconditionFailure.violations:type_name -> google.rpc.PreconditionFailure.Violation
 	13, // 4: google.rpc.BadRequest.field_violations:type_name -> google.rpc.BadRequest.FieldViolation
 	14, // 5: google.rpc.Help.links:type_name -> google.rpc.Help.Link
@@ -1089,7 +1125,7 @@ func file_google_rpc_error_details_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_google_rpc_error_details_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*RetryInfo); i {
+			switch v := v.(*ErrorInfo); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1101,7 +1137,7 @@ func file_google_rpc_error_details_proto_init() {
 			}
 		}
 		file_google_rpc_error_details_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DebugInfo); i {
+			switch v := v.(*RetryInfo); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1113,7 +1149,7 @@ func file_google_rpc_error_details_proto_init() {
 			}
 		}
 		file_google_rpc_error_details_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*QuotaFailure); i {
+			switch v := v.(*DebugInfo); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1125,7 +1161,7 @@ func file_google_rpc_error_details_proto_init() {
 			}
 		}
 		file_google_rpc_error_details_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ErrorInfo); i {
+			switch v := v.(*QuotaFailure); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1208,7 +1244,7 @@ func file_google_rpc_error_details_proto_init() {
 				return nil
 			}
 		}
-		file_google_rpc_error_details_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
+		file_google_rpc_error_details_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*QuotaFailure_Violation); i {
 			case 0:
 				return &v.state
diff --git a/vendor/google.golang.org/genproto/googleapis/rpc/status/status.pb.go b/vendor/google.golang.org/genproto/googleapis/rpc/status/status.pb.go
index f34a38e4e..a6b508188 100644
--- a/vendor/google.golang.org/genproto/googleapis/rpc/status/status.pb.go
+++ b/vendor/google.golang.org/genproto/googleapis/rpc/status/status.pb.go
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2022 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.12.2
+// 	protoc        v3.21.9
 // source: google/rpc/status.proto
 
 package status
@@ -48,11 +48,13 @@ type Status struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// The status code, which should be an enum value of [google.rpc.Code][google.rpc.Code].
+	// The status code, which should be an enum value of
+	// [google.rpc.Code][google.rpc.Code].
 	Code int32 `protobuf:"varint,1,opt,name=code,proto3" json:"code,omitempty"`
 	// A developer-facing error message, which should be in English. Any
 	// user-facing error message should be localized and sent in the
-	// [google.rpc.Status.details][google.rpc.Status.details] field, or localized by the client.
+	// [google.rpc.Status.details][google.rpc.Status.details] field, or localized
+	// by the client.
 	Message string `protobuf:"bytes,2,opt,name=message,proto3" json:"message,omitempty"`
 	// A list of messages that carry the error details.  There is a common set of
 	// message types for APIs to use.
diff --git a/vendor/google.golang.org/grpc/balancer/balancer.go b/vendor/google.golang.org/grpc/balancer/balancer.go
index 392b21fb2..09d61dd1b 100644
--- a/vendor/google.golang.org/grpc/balancer/balancer.go
+++ b/vendor/google.golang.org/grpc/balancer/balancer.go
@@ -279,6 +279,14 @@ type PickResult struct {
 	// type, Done may not be called.  May be nil if the balancer does not wish
 	// to be notified when the RPC completes.
 	Done func(DoneInfo)
+
+	// Metadata provides a way for LB policies to inject arbitrary per-call
+	// metadata. Any metadata returned here will be merged with existing
+	// metadata added by the client application.
+	//
+	// LB policies with child policies are responsible for propagating metadata
+	// injected by their children to the ClientConn, as part of Pick().
+	Metatada metadata.MD
 }
 
 // TransientFailureError returns e.  It exists for backward compatibility and
diff --git a/vendor/google.golang.org/grpc/binarylog/grpc_binarylog_v1/binarylog.pb.go b/vendor/google.golang.org/grpc/binarylog/grpc_binarylog_v1/binarylog.pb.go
index 64a232f28..66d141fce 100644
--- a/vendor/google.golang.org/grpc/binarylog/grpc_binarylog_v1/binarylog.pb.go
+++ b/vendor/google.golang.org/grpc/binarylog/grpc_binarylog_v1/binarylog.pb.go
@@ -18,14 +18,13 @@
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.28.1
 // 	protoc        v3.14.0
 // source: grpc/binlog/v1/binarylog.proto
 
 package grpc_binarylog_v1
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	durationpb "google.golang.org/protobuf/types/known/durationpb"
@@ -41,10 +40,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // Enumerates the type of event
 // Note the terminology is different from the RPC semantics
 // definition, but the same meaning is expressed here.
diff --git a/vendor/google.golang.org/grpc/clientconn.go b/vendor/google.golang.org/grpc/clientconn.go
index 422639c79..d607d4e9e 100644
--- a/vendor/google.golang.org/grpc/clientconn.go
+++ b/vendor/google.golang.org/grpc/clientconn.go
@@ -256,7 +256,7 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
 	if err != nil {
 		return nil, err
 	}
-	cc.authority, err = determineAuthority(cc.parsedTarget.Endpoint, cc.target, cc.dopts)
+	cc.authority, err = determineAuthority(cc.parsedTarget.Endpoint(), cc.target, cc.dopts)
 	if err != nil {
 		return nil, err
 	}
@@ -788,10 +788,16 @@ func (cc *ClientConn) incrCallsFailed() {
 func (ac *addrConn) connect() error {
 	ac.mu.Lock()
 	if ac.state == connectivity.Shutdown {
+		if logger.V(2) {
+			logger.Infof("connect called on shutdown addrConn; ignoring.")
+		}
 		ac.mu.Unlock()
 		return errConnClosing
 	}
 	if ac.state != connectivity.Idle {
+		if logger.V(2) {
+			logger.Infof("connect called on addrConn in non-idle state (%v); ignoring.", ac.state)
+		}
 		ac.mu.Unlock()
 		return nil
 	}
@@ -928,7 +934,7 @@ func (cc *ClientConn) healthCheckConfig() *healthCheckConfig {
 	return cc.sc.healthCheckConfig
 }
 
-func (cc *ClientConn) getTransport(ctx context.Context, failfast bool, method string) (transport.ClientTransport, func(balancer.DoneInfo), error) {
+func (cc *ClientConn) getTransport(ctx context.Context, failfast bool, method string) (transport.ClientTransport, balancer.PickResult, error) {
 	return cc.blockingpicker.pick(ctx, failfast, balancer.PickInfo{
 		Ctx:            ctx,
 		FullMethodName: method,
@@ -1231,9 +1237,11 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
 	addr.ServerName = ac.cc.getServerName(addr)
 	hctx, hcancel := context.WithCancel(ac.ctx)
 
-	onClose := grpcsync.OnceFunc(func() {
+	onClose := func(r transport.GoAwayReason) {
 		ac.mu.Lock()
 		defer ac.mu.Unlock()
+		// adjust params based on GoAwayReason
+		ac.adjustParams(r)
 		if ac.state == connectivity.Shutdown {
 			// Already shut down.  tearDown() already cleared the transport and
 			// canceled hctx via ac.ctx, and we expected this connection to be
@@ -1254,20 +1262,17 @@ func (ac *addrConn) createTransport(addr resolver.Address, copts transport.Conne
 		// Always go idle and wait for the LB policy to initiate a new
 		// connection attempt.
 		ac.updateConnectivityState(connectivity.Idle, nil)
-	})
-	onGoAway := func(r transport.GoAwayReason) {
-		ac.mu.Lock()
-		ac.adjustParams(r)
-		ac.mu.Unlock()
-		onClose()
 	}
 
 	connectCtx, cancel := context.WithDeadline(ac.ctx, connectDeadline)
 	defer cancel()
 	copts.ChannelzParentID = ac.channelzID
 
-	newTr, err := transport.NewClientTransport(connectCtx, ac.cc.ctx, addr, copts, onGoAway, onClose)
+	newTr, err := transport.NewClientTransport(connectCtx, ac.cc.ctx, addr, copts, onClose)
 	if err != nil {
+		if logger.V(2) {
+			logger.Infof("Creating new client transport to %q: %v", addr, err)
+		}
 		// newTr is either nil, or closed.
 		hcancel()
 		channelz.Warningf(logger, ac.channelzID, "grpc: addrConn.createTransport failed to connect to %s. Err: %v", addr, err)
@@ -1371,7 +1376,7 @@ func (ac *addrConn) startHealthCheck(ctx context.Context) {
 			if status.Code(err) == codes.Unimplemented {
 				channelz.Error(logger, ac.channelzID, "Subchannel health check is unimplemented at server side, thus health check is disabled")
 			} else {
-				channelz.Errorf(logger, ac.channelzID, "HealthCheckFunc exits with unexpected error %v", err)
+				channelz.Errorf(logger, ac.channelzID, "Health checking failed: %v", err)
 			}
 		}
 	}()
@@ -1582,30 +1587,17 @@ func (cc *ClientConn) parseTargetAndFindResolver() (resolver.Builder, error) {
 }
 
 // parseTarget uses RFC 3986 semantics to parse the given target into a
-// resolver.Target struct containing scheme, authority and endpoint. Query
+// resolver.Target struct containing scheme, authority and url. Query
 // params are stripped from the endpoint.
 func parseTarget(target string) (resolver.Target, error) {
 	u, err := url.Parse(target)
 	if err != nil {
 		return resolver.Target{}, err
 	}
-	// For targets of the form "[scheme]://[authority]/endpoint, the endpoint
-	// value returned from url.Parse() contains a leading "/". Although this is
-	// in accordance with RFC 3986, we do not want to break existing resolver
-	// implementations which expect the endpoint without the leading "/". So, we
-	// end up stripping the leading "/" here. But this will result in an
-	// incorrect parsing for something like "unix:///path/to/socket". Since we
-	// own the "unix" resolver, we can workaround in the unix resolver by using
-	// the `URL` field instead of the `Endpoint` field.
-	endpoint := u.Path
-	if endpoint == "" {
-		endpoint = u.Opaque
-	}
-	endpoint = strings.TrimPrefix(endpoint, "/")
+
 	return resolver.Target{
 		Scheme:    u.Scheme,
 		Authority: u.Host,
-		Endpoint:  endpoint,
 		URL:       *u,
 	}, nil
 }
diff --git a/vendor/google.golang.org/grpc/credentials/tls.go b/vendor/google.golang.org/grpc/credentials/tls.go
index ce2bbc10a..877b7cd21 100644
--- a/vendor/google.golang.org/grpc/credentials/tls.go
+++ b/vendor/google.golang.org/grpc/credentials/tls.go
@@ -23,9 +23,9 @@ import (
 	"crypto/tls"
 	"crypto/x509"
 	"fmt"
-	"io/ioutil"
 	"net"
 	"net/url"
+	"os"
 
 	credinternal "google.golang.org/grpc/internal/credentials"
 )
@@ -166,7 +166,7 @@ func NewClientTLSFromCert(cp *x509.CertPool, serverNameOverride string) Transpor
 // it will override the virtual host name of authority (e.g. :authority header
 // field) in requests.
 func NewClientTLSFromFile(certFile, serverNameOverride string) (TransportCredentials, error) {
-	b, err := ioutil.ReadFile(certFile)
+	b, err := os.ReadFile(certFile)
 	if err != nil {
 		return nil, err
 	}
diff --git a/vendor/google.golang.org/grpc/dialoptions.go b/vendor/google.golang.org/grpc/dialoptions.go
index 9372dc322..4866da101 100644
--- a/vendor/google.golang.org/grpc/dialoptions.go
+++ b/vendor/google.golang.org/grpc/dialoptions.go
@@ -44,6 +44,7 @@ func init() {
 		extraDialOptions = nil
 	}
 	internal.WithBinaryLogger = withBinaryLogger
+	internal.JoinDialOptions = newJoinDialOption
 }
 
 // dialOptions configure a Dial call. dialOptions are set by the DialOption
@@ -111,13 +112,28 @@ func newFuncDialOption(f func(*dialOptions)) *funcDialOption {
 	}
 }
 
+type joinDialOption struct {
+	opts []DialOption
+}
+
+func (jdo *joinDialOption) apply(do *dialOptions) {
+	for _, opt := range jdo.opts {
+		opt.apply(do)
+	}
+}
+
+func newJoinDialOption(opts ...DialOption) DialOption {
+	return &joinDialOption{opts: opts}
+}
+
 // WithWriteBufferSize determines how much data can be batched before doing a
 // write on the wire. The corresponding memory allocation for this buffer will
 // be twice the size to keep syscalls low. The default value for this buffer is
 // 32KB.
 //
-// Zero will disable the write buffer such that each write will be on underlying
-// connection. Note: A Send call may not directly translate to a write.
+// Zero or negative values will disable the write buffer such that each write
+// will be on underlying connection. Note: A Send call may not directly
+// translate to a write.
 func WithWriteBufferSize(s int) DialOption {
 	return newFuncDialOption(func(o *dialOptions) {
 		o.copts.WriteBufferSize = s
@@ -127,8 +143,9 @@ func WithWriteBufferSize(s int) DialOption {
 // WithReadBufferSize lets you set the size of read buffer, this determines how
 // much data can be read at most for each read syscall.
 //
-// The default value for this buffer is 32KB. Zero will disable read buffer for
-// a connection so data framer can access the underlying conn directly.
+// The default value for this buffer is 32KB. Zero or negative values will
+// disable read buffer for a connection so data framer can access the
+// underlying conn directly.
 func WithReadBufferSize(s int) DialOption {
 	return newFuncDialOption(func(o *dialOptions) {
 		o.copts.ReadBufferSize = s
diff --git a/vendor/google.golang.org/grpc/encoding/encoding.go b/vendor/google.golang.org/grpc/encoding/encoding.go
index 711763d54..07a586135 100644
--- a/vendor/google.golang.org/grpc/encoding/encoding.go
+++ b/vendor/google.golang.org/grpc/encoding/encoding.go
@@ -75,7 +75,9 @@ var registeredCompressor = make(map[string]Compressor)
 // registered with the same name, the one registered last will take effect.
 func RegisterCompressor(c Compressor) {
 	registeredCompressor[c.Name()] = c
-	grpcutil.RegisteredCompressorNames = append(grpcutil.RegisteredCompressorNames, c.Name())
+	if !grpcutil.IsCompressorNameRegistered(c.Name()) {
+		grpcutil.RegisteredCompressorNames = append(grpcutil.RegisteredCompressorNames, c.Name())
+	}
 }
 
 // GetCompressor returns Compressor for the given compressor name.
diff --git a/vendor/google.golang.org/grpc/encoding/gzip/gzip.go b/vendor/google.golang.org/grpc/encoding/gzip/gzip.go
index ca820bd47..a3bb173c2 100644
--- a/vendor/google.golang.org/grpc/encoding/gzip/gzip.go
+++ b/vendor/google.golang.org/grpc/encoding/gzip/gzip.go
@@ -30,7 +30,6 @@ import (
 	"encoding/binary"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"sync"
 
 	"google.golang.org/grpc/encoding"
@@ -42,7 +41,7 @@ const Name = "gzip"
 func init() {
 	c := &compressor{}
 	c.poolCompressor.New = func() interface{} {
-		return &writer{Writer: gzip.NewWriter(ioutil.Discard), pool: &c.poolCompressor}
+		return &writer{Writer: gzip.NewWriter(io.Discard), pool: &c.poolCompressor}
 	}
 	encoding.RegisterCompressor(c)
 }
@@ -63,7 +62,7 @@ func SetLevel(level int) error {
 	}
 	c := encoding.GetCompressor(Name).(*compressor)
 	c.poolCompressor.New = func() interface{} {
-		w, err := gzip.NewWriterLevel(ioutil.Discard, level)
+		w, err := gzip.NewWriterLevel(io.Discard, level)
 		if err != nil {
 			panic(err)
 		}
diff --git a/vendor/google.golang.org/grpc/grpclog/loggerv2.go b/vendor/google.golang.org/grpc/grpclog/loggerv2.go
index b5560b47e..5de66e40d 100644
--- a/vendor/google.golang.org/grpc/grpclog/loggerv2.go
+++ b/vendor/google.golang.org/grpc/grpclog/loggerv2.go
@@ -22,7 +22,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"os"
 	"strconv"
@@ -140,9 +139,9 @@ func newLoggerV2WithConfig(infoW, warningW, errorW io.Writer, c loggerV2Config)
 // newLoggerV2 creates a loggerV2 to be used as default logger.
 // All logs are written to stderr.
 func newLoggerV2() LoggerV2 {
-	errorW := ioutil.Discard
-	warningW := ioutil.Discard
-	infoW := ioutil.Discard
+	errorW := io.Discard
+	warningW := io.Discard
+	infoW := io.Discard
 
 	logLevel := os.Getenv("GRPC_GO_LOG_SEVERITY_LEVEL")
 	switch logLevel {
diff --git a/vendor/google.golang.org/grpc/internal/binarylog/method_logger.go b/vendor/google.golang.org/grpc/internal/binarylog/method_logger.go
index 179f4a26d..d71e44177 100644
--- a/vendor/google.golang.org/grpc/internal/binarylog/method_logger.go
+++ b/vendor/google.golang.org/grpc/internal/binarylog/method_logger.go
@@ -26,7 +26,7 @@ import (
 
 	"github.com/golang/protobuf/proto"
 	"github.com/golang/protobuf/ptypes"
-	pb "google.golang.org/grpc/binarylog/grpc_binarylog_v1"
+	binlogpb "google.golang.org/grpc/binarylog/grpc_binarylog_v1"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/status"
 )
@@ -79,7 +79,7 @@ func NewTruncatingMethodLogger(h, m uint64) *TruncatingMethodLogger {
 // Build is an internal only method for building the proto message out of the
 // input event. It's made public to enable other library to reuse as much logic
 // in TruncatingMethodLogger as possible.
-func (ml *TruncatingMethodLogger) Build(c LogEntryConfig) *pb.GrpcLogEntry {
+func (ml *TruncatingMethodLogger) Build(c LogEntryConfig) *binlogpb.GrpcLogEntry {
 	m := c.toProto()
 	timestamp, _ := ptypes.TimestampProto(time.Now())
 	m.Timestamp = timestamp
@@ -87,11 +87,11 @@ func (ml *TruncatingMethodLogger) Build(c LogEntryConfig) *pb.GrpcLogEntry {
 	m.SequenceIdWithinCall = ml.idWithinCallGen.next()
 
 	switch pay := m.Payload.(type) {
-	case *pb.GrpcLogEntry_ClientHeader:
+	case *binlogpb.GrpcLogEntry_ClientHeader:
 		m.PayloadTruncated = ml.truncateMetadata(pay.ClientHeader.GetMetadata())
-	case *pb.GrpcLogEntry_ServerHeader:
+	case *binlogpb.GrpcLogEntry_ServerHeader:
 		m.PayloadTruncated = ml.truncateMetadata(pay.ServerHeader.GetMetadata())
-	case *pb.GrpcLogEntry_Message:
+	case *binlogpb.GrpcLogEntry_Message:
 		m.PayloadTruncated = ml.truncateMessage(pay.Message)
 	}
 	return m
@@ -102,7 +102,7 @@ func (ml *TruncatingMethodLogger) Log(c LogEntryConfig) {
 	ml.sink.Write(ml.Build(c))
 }
 
-func (ml *TruncatingMethodLogger) truncateMetadata(mdPb *pb.Metadata) (truncated bool) {
+func (ml *TruncatingMethodLogger) truncateMetadata(mdPb *binlogpb.Metadata) (truncated bool) {
 	if ml.headerMaxLen == maxUInt {
 		return false
 	}
@@ -121,7 +121,7 @@ func (ml *TruncatingMethodLogger) truncateMetadata(mdPb *pb.Metadata) (truncated
 			// but not counted towards the size limit.
 			continue
 		}
-		currentEntryLen := uint64(len(entry.Value))
+		currentEntryLen := uint64(len(entry.GetKey())) + uint64(len(entry.GetValue()))
 		if currentEntryLen > bytesLimit {
 			break
 		}
@@ -132,7 +132,7 @@ func (ml *TruncatingMethodLogger) truncateMetadata(mdPb *pb.Metadata) (truncated
 	return truncated
 }
 
-func (ml *TruncatingMethodLogger) truncateMessage(msgPb *pb.Message) (truncated bool) {
+func (ml *TruncatingMethodLogger) truncateMessage(msgPb *binlogpb.Message) (truncated bool) {
 	if ml.messageMaxLen == maxUInt {
 		return false
 	}
@@ -145,7 +145,7 @@ func (ml *TruncatingMethodLogger) truncateMessage(msgPb *pb.Message) (truncated
 
 // LogEntryConfig represents the configuration for binary log entry.
 type LogEntryConfig interface {
-	toProto() *pb.GrpcLogEntry
+	toProto() *binlogpb.GrpcLogEntry
 }
 
 // ClientHeader configs the binary log entry to be a ClientHeader entry.
@@ -159,10 +159,10 @@ type ClientHeader struct {
 	PeerAddr net.Addr
 }
 
-func (c *ClientHeader) toProto() *pb.GrpcLogEntry {
+func (c *ClientHeader) toProto() *binlogpb.GrpcLogEntry {
 	// This function doesn't need to set all the fields (e.g. seq ID). The Log
 	// function will set the fields when necessary.
-	clientHeader := &pb.ClientHeader{
+	clientHeader := &binlogpb.ClientHeader{
 		Metadata:   mdToMetadataProto(c.Header),
 		MethodName: c.MethodName,
 		Authority:  c.Authority,
@@ -170,16 +170,16 @@ func (c *ClientHeader) toProto() *pb.GrpcLogEntry {
 	if c.Timeout > 0 {
 		clientHeader.Timeout = ptypes.DurationProto(c.Timeout)
 	}
-	ret := &pb.GrpcLogEntry{
-		Type: pb.GrpcLogEntry_EVENT_TYPE_CLIENT_HEADER,
-		Payload: &pb.GrpcLogEntry_ClientHeader{
+	ret := &binlogpb.GrpcLogEntry{
+		Type: binlogpb.GrpcLogEntry_EVENT_TYPE_CLIENT_HEADER,
+		Payload: &binlogpb.GrpcLogEntry_ClientHeader{
 			ClientHeader: clientHeader,
 		},
 	}
 	if c.OnClientSide {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_CLIENT
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
 	} else {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_SERVER
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
 	}
 	if c.PeerAddr != nil {
 		ret.Peer = addrToProto(c.PeerAddr)
@@ -195,19 +195,19 @@ type ServerHeader struct {
 	PeerAddr net.Addr
 }
 
-func (c *ServerHeader) toProto() *pb.GrpcLogEntry {
-	ret := &pb.GrpcLogEntry{
-		Type: pb.GrpcLogEntry_EVENT_TYPE_SERVER_HEADER,
-		Payload: &pb.GrpcLogEntry_ServerHeader{
-			ServerHeader: &pb.ServerHeader{
+func (c *ServerHeader) toProto() *binlogpb.GrpcLogEntry {
+	ret := &binlogpb.GrpcLogEntry{
+		Type: binlogpb.GrpcLogEntry_EVENT_TYPE_SERVER_HEADER,
+		Payload: &binlogpb.GrpcLogEntry_ServerHeader{
+			ServerHeader: &binlogpb.ServerHeader{
 				Metadata: mdToMetadataProto(c.Header),
 			},
 		},
 	}
 	if c.OnClientSide {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_CLIENT
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
 	} else {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_SERVER
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
 	}
 	if c.PeerAddr != nil {
 		ret.Peer = addrToProto(c.PeerAddr)
@@ -223,7 +223,7 @@ type ClientMessage struct {
 	Message interface{}
 }
 
-func (c *ClientMessage) toProto() *pb.GrpcLogEntry {
+func (c *ClientMessage) toProto() *binlogpb.GrpcLogEntry {
 	var (
 		data []byte
 		err  error
@@ -238,19 +238,19 @@ func (c *ClientMessage) toProto() *pb.GrpcLogEntry {
 	} else {
 		grpclogLogger.Infof("binarylogging: message to log is neither proto.message nor []byte")
 	}
-	ret := &pb.GrpcLogEntry{
-		Type: pb.GrpcLogEntry_EVENT_TYPE_CLIENT_MESSAGE,
-		Payload: &pb.GrpcLogEntry_Message{
-			Message: &pb.Message{
+	ret := &binlogpb.GrpcLogEntry{
+		Type: binlogpb.GrpcLogEntry_EVENT_TYPE_CLIENT_MESSAGE,
+		Payload: &binlogpb.GrpcLogEntry_Message{
+			Message: &binlogpb.Message{
 				Length: uint32(len(data)),
 				Data:   data,
 			},
 		},
 	}
 	if c.OnClientSide {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_CLIENT
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
 	} else {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_SERVER
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
 	}
 	return ret
 }
@@ -263,7 +263,7 @@ type ServerMessage struct {
 	Message interface{}
 }
 
-func (c *ServerMessage) toProto() *pb.GrpcLogEntry {
+func (c *ServerMessage) toProto() *binlogpb.GrpcLogEntry {
 	var (
 		data []byte
 		err  error
@@ -278,19 +278,19 @@ func (c *ServerMessage) toProto() *pb.GrpcLogEntry {
 	} else {
 		grpclogLogger.Infof("binarylogging: message to log is neither proto.message nor []byte")
 	}
-	ret := &pb.GrpcLogEntry{
-		Type: pb.GrpcLogEntry_EVENT_TYPE_SERVER_MESSAGE,
-		Payload: &pb.GrpcLogEntry_Message{
-			Message: &pb.Message{
+	ret := &binlogpb.GrpcLogEntry{
+		Type: binlogpb.GrpcLogEntry_EVENT_TYPE_SERVER_MESSAGE,
+		Payload: &binlogpb.GrpcLogEntry_Message{
+			Message: &binlogpb.Message{
 				Length: uint32(len(data)),
 				Data:   data,
 			},
 		},
 	}
 	if c.OnClientSide {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_CLIENT
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
 	} else {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_SERVER
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
 	}
 	return ret
 }
@@ -300,15 +300,15 @@ type ClientHalfClose struct {
 	OnClientSide bool
 }
 
-func (c *ClientHalfClose) toProto() *pb.GrpcLogEntry {
-	ret := &pb.GrpcLogEntry{
-		Type:    pb.GrpcLogEntry_EVENT_TYPE_CLIENT_HALF_CLOSE,
+func (c *ClientHalfClose) toProto() *binlogpb.GrpcLogEntry {
+	ret := &binlogpb.GrpcLogEntry{
+		Type:    binlogpb.GrpcLogEntry_EVENT_TYPE_CLIENT_HALF_CLOSE,
 		Payload: nil, // No payload here.
 	}
 	if c.OnClientSide {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_CLIENT
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
 	} else {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_SERVER
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
 	}
 	return ret
 }
@@ -324,7 +324,7 @@ type ServerTrailer struct {
 	PeerAddr net.Addr
 }
 
-func (c *ServerTrailer) toProto() *pb.GrpcLogEntry {
+func (c *ServerTrailer) toProto() *binlogpb.GrpcLogEntry {
 	st, ok := status.FromError(c.Err)
 	if !ok {
 		grpclogLogger.Info("binarylogging: error in trailer is not a status error")
@@ -340,10 +340,10 @@ func (c *ServerTrailer) toProto() *pb.GrpcLogEntry {
 			grpclogLogger.Infof("binarylogging: failed to marshal status proto: %v", err)
 		}
 	}
-	ret := &pb.GrpcLogEntry{
-		Type: pb.GrpcLogEntry_EVENT_TYPE_SERVER_TRAILER,
-		Payload: &pb.GrpcLogEntry_Trailer{
-			Trailer: &pb.Trailer{
+	ret := &binlogpb.GrpcLogEntry{
+		Type: binlogpb.GrpcLogEntry_EVENT_TYPE_SERVER_TRAILER,
+		Payload: &binlogpb.GrpcLogEntry_Trailer{
+			Trailer: &binlogpb.Trailer{
 				Metadata:      mdToMetadataProto(c.Trailer),
 				StatusCode:    uint32(st.Code()),
 				StatusMessage: st.Message(),
@@ -352,9 +352,9 @@ func (c *ServerTrailer) toProto() *pb.GrpcLogEntry {
 		},
 	}
 	if c.OnClientSide {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_CLIENT
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
 	} else {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_SERVER
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
 	}
 	if c.PeerAddr != nil {
 		ret.Peer = addrToProto(c.PeerAddr)
@@ -367,15 +367,15 @@ type Cancel struct {
 	OnClientSide bool
 }
 
-func (c *Cancel) toProto() *pb.GrpcLogEntry {
-	ret := &pb.GrpcLogEntry{
-		Type:    pb.GrpcLogEntry_EVENT_TYPE_CANCEL,
+func (c *Cancel) toProto() *binlogpb.GrpcLogEntry {
+	ret := &binlogpb.GrpcLogEntry{
+		Type:    binlogpb.GrpcLogEntry_EVENT_TYPE_CANCEL,
 		Payload: nil,
 	}
 	if c.OnClientSide {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_CLIENT
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_CLIENT
 	} else {
-		ret.Logger = pb.GrpcLogEntry_LOGGER_SERVER
+		ret.Logger = binlogpb.GrpcLogEntry_LOGGER_SERVER
 	}
 	return ret
 }
@@ -392,15 +392,15 @@ func metadataKeyOmit(key string) bool {
 	return strings.HasPrefix(key, "grpc-")
 }
 
-func mdToMetadataProto(md metadata.MD) *pb.Metadata {
-	ret := &pb.Metadata{}
+func mdToMetadataProto(md metadata.MD) *binlogpb.Metadata {
+	ret := &binlogpb.Metadata{}
 	for k, vv := range md {
 		if metadataKeyOmit(k) {
 			continue
 		}
 		for _, v := range vv {
 			ret.Entry = append(ret.Entry,
-				&pb.MetadataEntry{
+				&binlogpb.MetadataEntry{
 					Key:   k,
 					Value: []byte(v),
 				},
@@ -410,26 +410,26 @@ func mdToMetadataProto(md metadata.MD) *pb.Metadata {
 	return ret
 }
 
-func addrToProto(addr net.Addr) *pb.Address {
-	ret := &pb.Address{}
+func addrToProto(addr net.Addr) *binlogpb.Address {
+	ret := &binlogpb.Address{}
 	switch a := addr.(type) {
 	case *net.TCPAddr:
 		if a.IP.To4() != nil {
-			ret.Type = pb.Address_TYPE_IPV4
+			ret.Type = binlogpb.Address_TYPE_IPV4
 		} else if a.IP.To16() != nil {
-			ret.Type = pb.Address_TYPE_IPV6
+			ret.Type = binlogpb.Address_TYPE_IPV6
 		} else {
-			ret.Type = pb.Address_TYPE_UNKNOWN
+			ret.Type = binlogpb.Address_TYPE_UNKNOWN
 			// Do not set address and port fields.
 			break
 		}
 		ret.Address = a.IP.String()
 		ret.IpPort = uint32(a.Port)
 	case *net.UnixAddr:
-		ret.Type = pb.Address_TYPE_UNIX
+		ret.Type = binlogpb.Address_TYPE_UNIX
 		ret.Address = a.String()
 	default:
-		ret.Type = pb.Address_TYPE_UNKNOWN
+		ret.Type = binlogpb.Address_TYPE_UNKNOWN
 	}
 	return ret
 }
diff --git a/vendor/google.golang.org/grpc/internal/binarylog/sink.go b/vendor/google.golang.org/grpc/internal/binarylog/sink.go
index c2fdd58b3..264de387c 100644
--- a/vendor/google.golang.org/grpc/internal/binarylog/sink.go
+++ b/vendor/google.golang.org/grpc/internal/binarylog/sink.go
@@ -26,7 +26,7 @@ import (
 	"time"
 
 	"github.com/golang/protobuf/proto"
-	pb "google.golang.org/grpc/binarylog/grpc_binarylog_v1"
+	binlogpb "google.golang.org/grpc/binarylog/grpc_binarylog_v1"
 )
 
 var (
@@ -42,15 +42,15 @@ type Sink interface {
 	// Write will be called to write the log entry into the sink.
 	//
 	// It should be thread-safe so it can be called in parallel.
-	Write(*pb.GrpcLogEntry) error
+	Write(*binlogpb.GrpcLogEntry) error
 	// Close will be called when the Sink is replaced by a new Sink.
 	Close() error
 }
 
 type noopSink struct{}
 
-func (ns *noopSink) Write(*pb.GrpcLogEntry) error { return nil }
-func (ns *noopSink) Close() error                 { return nil }
+func (ns *noopSink) Write(*binlogpb.GrpcLogEntry) error { return nil }
+func (ns *noopSink) Close() error                       { return nil }
 
 // newWriterSink creates a binary log sink with the given writer.
 //
@@ -66,7 +66,7 @@ type writerSink struct {
 	out io.Writer
 }
 
-func (ws *writerSink) Write(e *pb.GrpcLogEntry) error {
+func (ws *writerSink) Write(e *binlogpb.GrpcLogEntry) error {
 	b, err := proto.Marshal(e)
 	if err != nil {
 		grpclogLogger.Errorf("binary logging: failed to marshal proto message: %v", err)
@@ -96,7 +96,7 @@ type bufferedSink struct {
 	done        chan struct{}
 }
 
-func (fs *bufferedSink) Write(e *pb.GrpcLogEntry) error {
+func (fs *bufferedSink) Write(e *binlogpb.GrpcLogEntry) error {
 	fs.mu.Lock()
 	defer fs.mu.Unlock()
 	if !fs.flusherStarted {
diff --git a/vendor/google.golang.org/grpc/internal/envconfig/envconfig.go b/vendor/google.golang.org/grpc/internal/envconfig/envconfig.go
index 7edd196bd..5ba9d94d4 100644
--- a/vendor/google.golang.org/grpc/internal/envconfig/envconfig.go
+++ b/vendor/google.golang.org/grpc/internal/envconfig/envconfig.go
@@ -21,19 +21,42 @@ package envconfig
 
 import (
 	"os"
+	"strconv"
 	"strings"
 )
 
-const (
-	prefix                  = "GRPC_GO_"
-	txtErrIgnoreStr         = prefix + "IGNORE_TXT_ERRORS"
-	advertiseCompressorsStr = prefix + "ADVERTISE_COMPRESSORS"
-)
-
 var (
 	// TXTErrIgnore is set if TXT errors should be ignored ("GRPC_GO_IGNORE_TXT_ERRORS" is not "false").
-	TXTErrIgnore = !strings.EqualFold(os.Getenv(txtErrIgnoreStr), "false")
+	TXTErrIgnore = boolFromEnv("GRPC_GO_IGNORE_TXT_ERRORS", true)
 	// AdvertiseCompressors is set if registered compressor should be advertised
 	// ("GRPC_GO_ADVERTISE_COMPRESSORS" is not "false").
-	AdvertiseCompressors = !strings.EqualFold(os.Getenv(advertiseCompressorsStr), "false")
+	AdvertiseCompressors = boolFromEnv("GRPC_GO_ADVERTISE_COMPRESSORS", true)
+	// RingHashCap indicates the maximum ring size which defaults to 4096
+	// entries but may be overridden by setting the environment variable
+	// "GRPC_RING_HASH_CAP".  This does not override the default bounds
+	// checking which NACKs configs specifying ring sizes > 8*1024*1024 (~8M).
+	RingHashCap = uint64FromEnv("GRPC_RING_HASH_CAP", 4096, 1, 8*1024*1024)
 )
+
+func boolFromEnv(envVar string, def bool) bool {
+	if def {
+		// The default is true; return true unless the variable is "false".
+		return !strings.EqualFold(os.Getenv(envVar), "false")
+	}
+	// The default is false; return false unless the variable is "true".
+	return strings.EqualFold(os.Getenv(envVar), "true")
+}
+
+func uint64FromEnv(envVar string, def, min, max uint64) uint64 {
+	v, err := strconv.ParseUint(os.Getenv(envVar), 10, 64)
+	if err != nil {
+		return def
+	}
+	if v < min {
+		return min
+	}
+	if v > max {
+		return max
+	}
+	return v
+}
diff --git a/vendor/google.golang.org/grpc/internal/envconfig/xds.go b/vendor/google.golang.org/grpc/internal/envconfig/xds.go
index af09711a3..04136882c 100644
--- a/vendor/google.golang.org/grpc/internal/envconfig/xds.go
+++ b/vendor/google.golang.org/grpc/internal/envconfig/xds.go
@@ -20,7 +20,6 @@ package envconfig
 
 import (
 	"os"
-	"strings"
 )
 
 const (
@@ -36,16 +35,6 @@ const (
 	//
 	// When both bootstrap FileName and FileContent are set, FileName is used.
 	XDSBootstrapFileContentEnv = "GRPC_XDS_BOOTSTRAP_CONFIG"
-
-	ringHashSupportEnv           = "GRPC_XDS_EXPERIMENTAL_ENABLE_RING_HASH"
-	clientSideSecuritySupportEnv = "GRPC_XDS_EXPERIMENTAL_SECURITY_SUPPORT"
-	aggregateAndDNSSupportEnv    = "GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER"
-	rbacSupportEnv               = "GRPC_XDS_EXPERIMENTAL_RBAC"
-	outlierDetectionSupportEnv   = "GRPC_EXPERIMENTAL_ENABLE_OUTLIER_DETECTION"
-	federationEnv                = "GRPC_EXPERIMENTAL_XDS_FEDERATION"
-	rlsInXDSEnv                  = "GRPC_EXPERIMENTAL_XDS_RLS_LB"
-
-	c2pResolverTestOnlyTrafficDirectorURIEnv = "GRPC_TEST_ONLY_GOOGLE_C2P_RESOLVER_TRAFFIC_DIRECTOR_URI"
 )
 
 var (
@@ -64,38 +53,40 @@ var (
 	// XDSRingHash indicates whether ring hash support is enabled, which can be
 	// disabled by setting the environment variable
 	// "GRPC_XDS_EXPERIMENTAL_ENABLE_RING_HASH" to "false".
-	XDSRingHash = !strings.EqualFold(os.Getenv(ringHashSupportEnv), "false")
+	XDSRingHash = boolFromEnv("GRPC_XDS_EXPERIMENTAL_ENABLE_RING_HASH", true)
 	// XDSClientSideSecurity is used to control processing of security
 	// configuration on the client-side.
 	//
 	// Note that there is no env var protection for the server-side because we
 	// have a brand new API on the server-side and users explicitly need to use
 	// the new API to get security integration on the server.
-	XDSClientSideSecurity = !strings.EqualFold(os.Getenv(clientSideSecuritySupportEnv), "false")
+	XDSClientSideSecurity = boolFromEnv("GRPC_XDS_EXPERIMENTAL_SECURITY_SUPPORT", true)
 	// XDSAggregateAndDNS indicates whether processing of aggregated cluster
 	// and DNS cluster is enabled, which can be enabled by setting the
 	// environment variable
 	// "GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER" to
 	// "true".
-	XDSAggregateAndDNS = !strings.EqualFold(os.Getenv(aggregateAndDNSSupportEnv), "false")
+	XDSAggregateAndDNS = boolFromEnv("GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER", true)
 
 	// XDSRBAC indicates whether xDS configured RBAC HTTP Filter is enabled,
 	// which can be disabled by setting the environment variable
 	// "GRPC_XDS_EXPERIMENTAL_RBAC" to "false".
-	XDSRBAC = !strings.EqualFold(os.Getenv(rbacSupportEnv), "false")
+	XDSRBAC = boolFromEnv("GRPC_XDS_EXPERIMENTAL_RBAC", true)
 	// XDSOutlierDetection indicates whether outlier detection support is
 	// enabled, which can be disabled by setting the environment variable
 	// "GRPC_EXPERIMENTAL_ENABLE_OUTLIER_DETECTION" to "false".
-	XDSOutlierDetection = !strings.EqualFold(os.Getenv(outlierDetectionSupportEnv), "false")
-	// XDSFederation indicates whether federation support is enabled.
-	XDSFederation = strings.EqualFold(os.Getenv(federationEnv), "true")
+	XDSOutlierDetection = boolFromEnv("GRPC_EXPERIMENTAL_ENABLE_OUTLIER_DETECTION", true)
+	// XDSFederation indicates whether federation support is enabled, which can
+	// be enabled by setting the environment variable
+	// "GRPC_EXPERIMENTAL_XDS_FEDERATION" to "true".
+	XDSFederation = boolFromEnv("GRPC_EXPERIMENTAL_XDS_FEDERATION", false)
 
 	// XDSRLS indicates whether processing of Cluster Specifier plugins and
 	// support for the RLS CLuster Specifier is enabled, which can be enabled by
 	// setting the environment variable "GRPC_EXPERIMENTAL_XDS_RLS_LB" to
 	// "true".
-	XDSRLS = strings.EqualFold(os.Getenv(rlsInXDSEnv), "true")
+	XDSRLS = boolFromEnv("GRPC_EXPERIMENTAL_XDS_RLS_LB", false)
 
 	// C2PResolverTestOnlyTrafficDirectorURI is the TD URI for testing.
-	C2PResolverTestOnlyTrafficDirectorURI = os.Getenv(c2pResolverTestOnlyTrafficDirectorURIEnv)
+	C2PResolverTestOnlyTrafficDirectorURI = os.Getenv("GRPC_TEST_ONLY_GOOGLE_C2P_RESOLVER_TRAFFIC_DIRECTOR_URI")
 )
diff --git a/vendor/google.golang.org/grpc/internal/internal.go b/vendor/google.golang.org/grpc/internal/internal.go
index fd0ee3dca..0a76d9de6 100644
--- a/vendor/google.golang.org/grpc/internal/internal.go
+++ b/vendor/google.golang.org/grpc/internal/internal.go
@@ -77,6 +77,9 @@ var (
 	// ClearGlobalDialOptions clears the array of extra DialOption. This
 	// method is useful in testing and benchmarking.
 	ClearGlobalDialOptions func()
+	// JoinDialOptions combines the dial options passed as arguments into a
+	// single dial option.
+	JoinDialOptions interface{} // func(...grpc.DialOption) grpc.DialOption
 	// JoinServerOptions combines the server options passed as arguments into a
 	// single server option.
 	JoinServerOptions interface{} // func(...grpc.ServerOption) grpc.ServerOption
diff --git a/vendor/google.golang.org/grpc/internal/resolver/dns/dns_resolver.go b/vendor/google.golang.org/grpc/internal/resolver/dns/dns_resolver.go
index 75301c514..09a667f33 100644
--- a/vendor/google.golang.org/grpc/internal/resolver/dns/dns_resolver.go
+++ b/vendor/google.golang.org/grpc/internal/resolver/dns/dns_resolver.go
@@ -116,7 +116,7 @@ type dnsBuilder struct{}
 
 // Build creates and starts a DNS resolver that watches the name resolution of the target.
 func (b *dnsBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOptions) (resolver.Resolver, error) {
-	host, port, err := parseTarget(target.Endpoint, defaultPort)
+	host, port, err := parseTarget(target.Endpoint(), defaultPort)
 	if err != nil {
 		return nil, err
 	}
@@ -140,10 +140,10 @@ func (b *dnsBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts
 		disableServiceConfig: opts.DisableServiceConfig,
 	}
 
-	if target.Authority == "" {
+	if target.URL.Host == "" {
 		d.resolver = defaultResolver
 	} else {
-		d.resolver, err = customAuthorityResolver(target.Authority)
+		d.resolver, err = customAuthorityResolver(target.URL.Host)
 		if err != nil {
 			return nil, err
 		}
diff --git a/vendor/google.golang.org/grpc/internal/resolver/passthrough/passthrough.go b/vendor/google.golang.org/grpc/internal/resolver/passthrough/passthrough.go
index 520d9229e..afac56572 100644
--- a/vendor/google.golang.org/grpc/internal/resolver/passthrough/passthrough.go
+++ b/vendor/google.golang.org/grpc/internal/resolver/passthrough/passthrough.go
@@ -20,13 +20,20 @@
 // name without scheme back to gRPC as resolved address.
 package passthrough
 
-import "google.golang.org/grpc/resolver"
+import (
+	"errors"
+
+	"google.golang.org/grpc/resolver"
+)
 
 const scheme = "passthrough"
 
 type passthroughBuilder struct{}
 
 func (*passthroughBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOptions) (resolver.Resolver, error) {
+	if target.Endpoint() == "" && opts.Dialer == nil {
+		return nil, errors.New("passthrough: received empty target in Build()")
+	}
 	r := &passthroughResolver{
 		target: target,
 		cc:     cc,
@@ -45,7 +52,7 @@ type passthroughResolver struct {
 }
 
 func (r *passthroughResolver) start() {
-	r.cc.UpdateState(resolver.State{Addresses: []resolver.Address{{Addr: r.target.Endpoint}}})
+	r.cc.UpdateState(resolver.State{Addresses: []resolver.Address{{Addr: r.target.Endpoint()}}})
 }
 
 func (*passthroughResolver) ResolveNow(o resolver.ResolveNowOptions) {}
diff --git a/vendor/google.golang.org/grpc/internal/resolver/unix/unix.go b/vendor/google.golang.org/grpc/internal/resolver/unix/unix.go
index 7f1a702ca..160911687 100644
--- a/vendor/google.golang.org/grpc/internal/resolver/unix/unix.go
+++ b/vendor/google.golang.org/grpc/internal/resolver/unix/unix.go
@@ -34,8 +34,8 @@ type builder struct {
 }
 
 func (b *builder) Build(target resolver.Target, cc resolver.ClientConn, _ resolver.BuildOptions) (resolver.Resolver, error) {
-	if target.Authority != "" {
-		return nil, fmt.Errorf("invalid (non-empty) authority: %v", target.Authority)
+	if target.URL.Host != "" {
+		return nil, fmt.Errorf("invalid (non-empty) authority: %v", target.URL.Host)
 	}
 
 	// gRPC was parsing the dial target manually before PR #4817, and we
diff --git a/vendor/google.golang.org/grpc/internal/transport/controlbuf.go b/vendor/google.golang.org/grpc/internal/transport/controlbuf.go
index 409769f48..9097385e1 100644
--- a/vendor/google.golang.org/grpc/internal/transport/controlbuf.go
+++ b/vendor/google.golang.org/grpc/internal/transport/controlbuf.go
@@ -191,7 +191,7 @@ type goAway struct {
 	code      http2.ErrCode
 	debugData []byte
 	headsUp   bool
-	closeConn bool
+	closeConn error // if set, loopyWriter will exit, resulting in conn closure
 }
 
 func (*goAway) isTransportResponseFrame() bool { return false }
@@ -209,6 +209,14 @@ type outFlowControlSizeRequest struct {
 
 func (*outFlowControlSizeRequest) isTransportResponseFrame() bool { return false }
 
+// closeConnection is an instruction to tell the loopy writer to flush the
+// framer and exit, which will cause the transport's connection to be closed
+// (by the client or server).  The transport itself will close after the reader
+// encounters the EOF caused by the connection closure.
+type closeConnection struct{}
+
+func (closeConnection) isTransportResponseFrame() bool { return false }
+
 type outStreamState int
 
 const (
@@ -408,7 +416,7 @@ func (c *controlBuffer) get(block bool) (interface{}, error) {
 		select {
 		case <-c.ch:
 		case <-c.done:
-			return nil, ErrConnClosing
+			return nil, errors.New("transport closed by client")
 		}
 	}
 }
@@ -519,18 +527,9 @@ const minBatchSize = 1000
 // As an optimization, to increase the batch size for each flush, loopy yields the processor, once
 // if the batch size is too low to give stream goroutines a chance to fill it up.
 func (l *loopyWriter) run() (err error) {
-	defer func() {
-		if err == ErrConnClosing {
-			// Don't log ErrConnClosing as error since it happens
-			// 1. When the connection is closed by some other known issue.
-			// 2. User closed the connection.
-			// 3. A graceful close of connection.
-			if logger.V(logLevel) {
-				logger.Infof("transport: loopyWriter.run returning. %v", err)
-			}
-			err = nil
-		}
-	}()
+	// Always flush the writer before exiting in case there are pending frames
+	// to be sent.
+	defer l.framer.writer.Flush()
 	for {
 		it, err := l.cbuf.get(true)
 		if err != nil {
@@ -574,7 +573,6 @@ func (l *loopyWriter) run() (err error) {
 			}
 			l.framer.writer.Flush()
 			break hasdata
-
 		}
 	}
 }
@@ -655,19 +653,20 @@ func (l *loopyWriter) headerHandler(h *headerFrame) error {
 		itl:   &itemList{},
 		wq:    h.wq,
 	}
-	str.itl.enqueue(h)
-	return l.originateStream(str)
+	return l.originateStream(str, h)
 }
 
-func (l *loopyWriter) originateStream(str *outStream) error {
-	hdr := str.itl.dequeue().(*headerFrame)
-	if err := hdr.initStream(str.id); err != nil {
-		if err == ErrConnClosing {
-			return err
-		}
-		// Other errors(errStreamDrain) need not close transport.
+func (l *loopyWriter) originateStream(str *outStream, hdr *headerFrame) error {
+	// l.draining is set when handling GoAway. In which case, we want to avoid
+	// creating new streams.
+	if l.draining {
+		// TODO: provide a better error with the reason we are in draining.
+		hdr.onOrphaned(errStreamDrain)
 		return nil
 	}
+	if err := hdr.initStream(str.id); err != nil {
+		return err
+	}
 	if err := l.writeHeader(str.id, hdr.endStream, hdr.hf, hdr.onWrite); err != nil {
 		return err
 	}
@@ -763,8 +762,8 @@ func (l *loopyWriter) cleanupStreamHandler(c *cleanupStream) error {
 			return err
 		}
 	}
-	if l.side == clientSide && l.draining && len(l.estdStreams) == 0 {
-		return ErrConnClosing
+	if l.draining && len(l.estdStreams) == 0 {
+		return errors.New("finished processing active streams while in draining mode")
 	}
 	return nil
 }
@@ -799,7 +798,7 @@ func (l *loopyWriter) incomingGoAwayHandler(*incomingGoAway) error {
 	if l.side == clientSide {
 		l.draining = true
 		if len(l.estdStreams) == 0 {
-			return ErrConnClosing
+			return errors.New("received GOAWAY with no active streams")
 		}
 	}
 	return nil
@@ -817,6 +816,13 @@ func (l *loopyWriter) goAwayHandler(g *goAway) error {
 	return nil
 }
 
+func (l *loopyWriter) closeConnectionHandler() error {
+	// Exit loopyWriter entirely by returning an error here.  This will lead to
+	// the transport closing the connection, and, ultimately, transport
+	// closure.
+	return ErrConnClosing
+}
+
 func (l *loopyWriter) handle(i interface{}) error {
 	switch i := i.(type) {
 	case *incomingWindowUpdate:
@@ -845,6 +851,8 @@ func (l *loopyWriter) handle(i interface{}) error {
 		return l.goAwayHandler(i)
 	case *outFlowControlSizeRequest:
 		return l.outFlowControlSizeRequestHandler(i)
+	case closeConnection:
+		return l.closeConnectionHandler()
 	default:
 		return fmt.Errorf("transport: unknown control message type %T", i)
 	}
diff --git a/vendor/google.golang.org/grpc/internal/transport/defaults.go b/vendor/google.golang.org/grpc/internal/transport/defaults.go
index 9fa306b2e..bc8ee0747 100644
--- a/vendor/google.golang.org/grpc/internal/transport/defaults.go
+++ b/vendor/google.golang.org/grpc/internal/transport/defaults.go
@@ -47,3 +47,9 @@ const (
 	defaultClientMaxHeaderListSize = uint32(16 << 20)
 	defaultServerMaxHeaderListSize = uint32(16 << 20)
 )
+
+// MaxStreamID is the upper bound for the stream ID before the current
+// transport gracefully closes and new transport is created for subsequent RPCs.
+// This is set to 75% of 2^31-1. Streams are identified with an unsigned 31-bit
+// integer. It's exported so that tests can override it.
+var MaxStreamID = uint32(math.MaxInt32 * 3 / 4)
diff --git a/vendor/google.golang.org/grpc/internal/transport/handler_server.go b/vendor/google.golang.org/grpc/internal/transport/handler_server.go
index fb272235d..e6626bf96 100644
--- a/vendor/google.golang.org/grpc/internal/transport/handler_server.go
+++ b/vendor/google.golang.org/grpc/internal/transport/handler_server.go
@@ -46,24 +46,32 @@ import (
 	"google.golang.org/grpc/status"
 )
 
-// NewServerHandlerTransport returns a ServerTransport handling gRPC
-// from inside an http.Handler. It requires that the http Server
-// supports HTTP/2.
+// NewServerHandlerTransport returns a ServerTransport handling gRPC from
+// inside an http.Handler, or writes an HTTP error to w and returns an error.
+// It requires that the http Server supports HTTP/2.
 func NewServerHandlerTransport(w http.ResponseWriter, r *http.Request, stats []stats.Handler) (ServerTransport, error) {
 	if r.ProtoMajor != 2 {
-		return nil, errors.New("gRPC requires HTTP/2")
+		msg := "gRPC requires HTTP/2"
+		http.Error(w, msg, http.StatusBadRequest)
+		return nil, errors.New(msg)
 	}
 	if r.Method != "POST" {
-		return nil, errors.New("invalid gRPC request method")
+		msg := fmt.Sprintf("invalid gRPC request method %q", r.Method)
+		http.Error(w, msg, http.StatusBadRequest)
+		return nil, errors.New(msg)
 	}
 	contentType := r.Header.Get("Content-Type")
 	// TODO: do we assume contentType is lowercase? we did before
 	contentSubtype, validContentType := grpcutil.ContentSubtype(contentType)
 	if !validContentType {
-		return nil, errors.New("invalid gRPC request content-type")
+		msg := fmt.Sprintf("invalid gRPC request content-type %q", contentType)
+		http.Error(w, msg, http.StatusUnsupportedMediaType)
+		return nil, errors.New(msg)
 	}
 	if _, ok := w.(http.Flusher); !ok {
-		return nil, errors.New("gRPC requires a ResponseWriter supporting http.Flusher")
+		msg := "gRPC requires a ResponseWriter supporting http.Flusher"
+		http.Error(w, msg, http.StatusInternalServerError)
+		return nil, errors.New(msg)
 	}
 
 	st := &serverHandlerTransport{
@@ -79,7 +87,9 @@ func NewServerHandlerTransport(w http.ResponseWriter, r *http.Request, stats []s
 	if v := r.Header.Get("grpc-timeout"); v != "" {
 		to, err := decodeTimeout(v)
 		if err != nil {
-			return nil, status.Errorf(codes.Internal, "malformed time-out: %v", err)
+			msg := fmt.Sprintf("malformed grpc-timeout: %v", err)
+			http.Error(w, msg, http.StatusBadRequest)
+			return nil, status.Error(codes.Internal, msg)
 		}
 		st.timeoutSet = true
 		st.timeout = to
@@ -97,7 +107,9 @@ func NewServerHandlerTransport(w http.ResponseWriter, r *http.Request, stats []s
 		for _, v := range vv {
 			v, err := decodeMetadataHeader(k, v)
 			if err != nil {
-				return nil, status.Errorf(codes.Internal, "malformed binary metadata: %v", err)
+				msg := fmt.Sprintf("malformed binary metadata %q in header %q: %v", v, k, err)
+				http.Error(w, msg, http.StatusBadRequest)
+				return nil, status.Error(codes.Internal, msg)
 			}
 			metakv = append(metakv, k, v)
 		}
@@ -141,12 +153,15 @@ type serverHandlerTransport struct {
 	stats []stats.Handler
 }
 
-func (ht *serverHandlerTransport) Close() {
-	ht.closeOnce.Do(ht.closeCloseChanOnce)
+func (ht *serverHandlerTransport) Close(err error) {
+	ht.closeOnce.Do(func() {
+		if logger.V(logLevel) {
+			logger.Infof("Closing serverHandlerTransport: %v", err)
+		}
+		close(ht.closedCh)
+	})
 }
 
-func (ht *serverHandlerTransport) closeCloseChanOnce() { close(ht.closedCh) }
-
 func (ht *serverHandlerTransport) RemoteAddr() net.Addr { return strAddr(ht.req.RemoteAddr) }
 
 // strAddr is a net.Addr backed by either a TCP "ip:port" string, or
@@ -236,7 +251,7 @@ func (ht *serverHandlerTransport) WriteStatus(s *Stream, st *status.Status) erro
 			})
 		}
 	}
-	ht.Close()
+	ht.Close(errors.New("finished writing status"))
 	return err
 }
 
@@ -346,7 +361,7 @@ func (ht *serverHandlerTransport) HandleStreams(startStream func(*Stream), trace
 		case <-ht.req.Context().Done():
 		}
 		cancel()
-		ht.Close()
+		ht.Close(errors.New("request is done processing"))
 	}()
 
 	req := ht.req
diff --git a/vendor/google.golang.org/grpc/internal/transport/http2_client.go b/vendor/google.golang.org/grpc/internal/transport/http2_client.go
index d518b07e1..79ee8aea0 100644
--- a/vendor/google.golang.org/grpc/internal/transport/http2_client.go
+++ b/vendor/google.golang.org/grpc/internal/transport/http2_client.go
@@ -59,11 +59,15 @@ var clientConnectionCounter uint64
 
 // http2Client implements the ClientTransport interface with HTTP2.
 type http2Client struct {
-	lastRead   int64 // Keep this field 64-bit aligned. Accessed atomically.
-	ctx        context.Context
-	cancel     context.CancelFunc
-	ctxDone    <-chan struct{} // Cache the ctx.Done() chan.
-	userAgent  string
+	lastRead  int64 // Keep this field 64-bit aligned. Accessed atomically.
+	ctx       context.Context
+	cancel    context.CancelFunc
+	ctxDone   <-chan struct{} // Cache the ctx.Done() chan.
+	userAgent string
+	// address contains the resolver returned address for this transport.
+	// If the `ServerName` field is set, it takes precedence over `CallHdr.Host`
+	// passed to `NewStream`, when determining the :authority header.
+	address    resolver.Address
 	md         metadata.MD
 	conn       net.Conn // underlying communication channel
 	loopy      *loopyWriter
@@ -136,8 +140,7 @@ type http2Client struct {
 	channelzID *channelz.Identifier
 	czData     *channelzData
 
-	onGoAway func(GoAwayReason)
-	onClose  func()
+	onClose func(GoAwayReason)
 
 	bufferPool *bufferPool
 
@@ -193,7 +196,7 @@ func isTemporary(err error) bool {
 // newHTTP2Client constructs a connected ClientTransport to addr based on HTTP2
 // and starts to receive messages on it. Non-nil error returns if construction
 // fails.
-func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts ConnectOptions, onGoAway func(GoAwayReason), onClose func()) (_ *http2Client, err error) {
+func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts ConnectOptions, onClose func(GoAwayReason)) (_ *http2Client, err error) {
 	scheme := "http"
 	ctx, cancel := context.WithCancel(ctx)
 	defer func() {
@@ -213,7 +216,7 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
 		if opts.FailOnNonTempDialError {
 			return nil, connectionErrorf(isTemporary(err), err, "transport: error while dialing: %v", err)
 		}
-		return nil, connectionErrorf(true, err, "transport: Error while dialing %v", err)
+		return nil, connectionErrorf(true, err, "transport: Error while dialing: %v", err)
 	}
 
 	// Any further errors will close the underlying connection
@@ -238,8 +241,11 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
 	go func(conn net.Conn) {
 		defer ctxMonitorDone.Fire() // Signal this goroutine has exited.
 		<-newClientCtx.Done()       // Block until connectCtx expires or the defer above executes.
-		if connectCtx.Err() != nil {
+		if err := connectCtx.Err(); err != nil {
 			// connectCtx expired before exiting the function.  Hard close the connection.
+			if logger.V(logLevel) {
+				logger.Infof("newClientTransport: aborting due to connectCtx: %v", err)
+			}
 			conn.Close()
 		}
 	}(conn)
@@ -314,6 +320,7 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
 		cancel:                cancel,
 		userAgent:             opts.UserAgent,
 		registeredCompressors: grpcutil.RegisteredCompressors(),
+		address:               addr,
 		conn:                  conn,
 		remoteAddr:            conn.RemoteAddr(),
 		localAddr:             conn.LocalAddr(),
@@ -335,7 +342,6 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
 		streamQuota:           defaultMaxStreamsClient,
 		streamsQuotaAvailable: make(chan struct{}, 1),
 		czData:                new(channelzData),
-		onGoAway:              onGoAway,
 		keepaliveEnabled:      keepaliveEnabled,
 		bufferPool:            newBufferPool(),
 		onClose:               onClose,
@@ -440,10 +446,8 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
 	go func() {
 		t.loopy = newLoopyWriter(clientSide, t.framer, t.controlBuf, t.bdpEst)
 		err := t.loopy.run()
-		if err != nil {
-			if logger.V(logLevel) {
-				logger.Errorf("transport: loopyWriter.run returning. Err: %v", err)
-			}
+		if logger.V(logLevel) {
+			logger.Infof("transport: loopyWriter exited. Closing connection. Err: %v", err)
 		}
 		// Do not close the transport.  Let reader goroutine handle it since
 		// there might be data in the buffers.
@@ -702,6 +706,18 @@ func (e NewStreamError) Error() string {
 // streams.  All non-nil errors returned will be *NewStreamError.
 func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (*Stream, error) {
 	ctx = peer.NewContext(ctx, t.getPeer())
+
+	// ServerName field of the resolver returned address takes precedence over
+	// Host field of CallHdr to determine the :authority header. This is because,
+	// the ServerName field takes precedence for server authentication during
+	// TLS handshake, and the :authority header should match the value used
+	// for server authentication.
+	if t.address.ServerName != "" {
+		newCallHdr := *callHdr
+		newCallHdr.Host = t.address.ServerName
+		callHdr = &newCallHdr
+	}
+
 	headerFields, err := t.createHeaderFields(ctx, callHdr)
 	if err != nil {
 		return nil, &NewStreamError{Err: err, AllowTransparentRetry: false}
@@ -726,15 +742,12 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (*Stream,
 		endStream: false,
 		initStream: func(id uint32) error {
 			t.mu.Lock()
-			if state := t.state; state != reachable {
+			// TODO: handle transport closure in loopy instead and remove this
+			// initStream is never called when transport is draining.
+			if t.state == closing {
 				t.mu.Unlock()
-				// Do a quick cleanup.
-				err := error(errStreamDrain)
-				if state == closing {
-					err = ErrConnClosing
-				}
-				cleanup(err)
-				return err
+				cleanup(ErrConnClosing)
+				return ErrConnClosing
 			}
 			if channelz.IsOn() {
 				atomic.AddInt64(&t.czData.streamsStarted, 1)
@@ -752,6 +765,7 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (*Stream,
 	}
 	firstTry := true
 	var ch chan struct{}
+	transportDrainRequired := false
 	checkForStreamQuota := func(it interface{}) bool {
 		if t.streamQuota <= 0 { // Can go negative if server decreases it.
 			if firstTry {
@@ -767,6 +781,11 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (*Stream,
 		h := it.(*headerFrame)
 		h.streamID = t.nextID
 		t.nextID += 2
+
+		// Drain client transport if nextID > MaxStreamID which signals gRPC that
+		// the connection is closed and a new one must be created for subsequent RPCs.
+		transportDrainRequired = t.nextID > MaxStreamID
+
 		s.id = h.streamID
 		s.fc = &inFlow{limit: uint32(t.initialWindowSize)}
 		t.mu.Lock()
@@ -846,6 +865,12 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (*Stream,
 			sh.HandleRPC(s.ctx, outHeader)
 		}
 	}
+	if transportDrainRequired {
+		if logger.V(logLevel) {
+			logger.Infof("transport: t.nextID > MaxStreamID. Draining")
+		}
+		t.GracefulClose()
+	}
 	return s, nil
 }
 
@@ -934,9 +959,14 @@ func (t *http2Client) Close(err error) {
 		t.mu.Unlock()
 		return
 	}
+	if logger.V(logLevel) {
+		logger.Infof("transport: closing: %v", err)
+	}
 	// Call t.onClose ASAP to prevent the client from attempting to create new
 	// streams.
-	t.onClose()
+	if t.state != draining {
+		t.onClose(GoAwayInvalid)
+	}
 	t.state = closing
 	streams := t.activeStreams
 	t.activeStreams = nil
@@ -986,11 +1016,15 @@ func (t *http2Client) GracefulClose() {
 		t.mu.Unlock()
 		return
 	}
+	if logger.V(logLevel) {
+		logger.Infof("transport: GracefulClose called")
+	}
+	t.onClose(GoAwayInvalid)
 	t.state = draining
 	active := len(t.activeStreams)
 	t.mu.Unlock()
 	if active == 0 {
-		t.Close(ErrConnClosing)
+		t.Close(connectionErrorf(true, nil, "no active streams left to process while draining"))
 		return
 	}
 	t.controlBuf.put(&incomingGoAway{})
@@ -1148,7 +1182,7 @@ func (t *http2Client) handleRSTStream(f *http2.RSTStreamFrame) {
 	statusCode, ok := http2ErrConvTab[f.ErrCode]
 	if !ok {
 		if logger.V(logLevel) {
-			logger.Warningf("transport: http2Client.handleRSTStream found no mapped gRPC status for the received http2 error %v", f.ErrCode)
+			logger.Warningf("transport: http2Client.handleRSTStream found no mapped gRPC status for the received http2 error: %v", f.ErrCode)
 		}
 		statusCode = codes.Unknown
 	}
@@ -1266,8 +1300,10 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
 		// Notify the clientconn about the GOAWAY before we set the state to
 		// draining, to allow the client to stop attempting to create streams
 		// before disallowing new streams on this connection.
-		t.onGoAway(t.goAwayReason)
-		t.state = draining
+		if t.state != draining {
+			t.onClose(t.goAwayReason)
+			t.state = draining
+		}
 	}
 	// All streams with IDs greater than the GoAwayId
 	// and smaller than the previous GoAway ID should be killed.
@@ -1756,3 +1792,9 @@ func (t *http2Client) getOutFlowWindow() int64 {
 		return -2
 	}
 }
+
+func (t *http2Client) stateForTesting() transportState {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	return t.state
+}
diff --git a/vendor/google.golang.org/grpc/internal/transport/http2_server.go b/vendor/google.golang.org/grpc/internal/transport/http2_server.go
index 3dd15647b..bc3da7067 100644
--- a/vendor/google.golang.org/grpc/internal/transport/http2_server.go
+++ b/vendor/google.golang.org/grpc/internal/transport/http2_server.go
@@ -21,6 +21,7 @@ package transport
 import (
 	"bytes"
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"math"
@@ -41,6 +42,7 @@ import (
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/internal/channelz"
 	"google.golang.org/grpc/internal/grpcrand"
+	"google.golang.org/grpc/internal/grpcsync"
 	"google.golang.org/grpc/keepalive"
 	"google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/peer"
@@ -101,13 +103,13 @@ type http2Server struct {
 
 	mu sync.Mutex // guard the following
 
-	// drainChan is initialized when Drain() is called the first time.
-	// After which the server writes out the first GoAway(with ID 2^31-1) frame.
-	// Then an independent goroutine will be launched to later send the second GoAway.
-	// During this time we don't want to write another first GoAway(with ID 2^31 -1) frame.
-	// Thus call to Drain() will be a no-op if drainChan is already initialized since draining is
-	// already underway.
-	drainChan     chan struct{}
+	// drainEvent is initialized when Drain() is called the first time. After
+	// which the server writes out the first GoAway(with ID 2^31-1) frame. Then
+	// an independent goroutine will be launched to later send the second
+	// GoAway. During this time we don't want to write another first GoAway(with
+	// ID 2^31 -1) frame. Thus call to Drain() will be a no-op if drainEvent is
+	// already initialized since draining is already underway.
+	drainEvent    *grpcsync.Event
 	state         transportState
 	activeStreams map[uint32]*Stream
 	// idle is the time instant when the connection went idle.
@@ -293,7 +295,7 @@ func NewServerTransport(conn net.Conn, config *ServerConfig) (_ ServerTransport,
 
 	defer func() {
 		if err != nil {
-			t.Close()
+			t.Close(err)
 		}
 	}()
 
@@ -331,10 +333,9 @@ func NewServerTransport(conn net.Conn, config *ServerConfig) (_ ServerTransport,
 	go func() {
 		t.loopy = newLoopyWriter(serverSide, t.framer, t.controlBuf, t.bdpEst)
 		t.loopy.ssGoAwayHandler = t.outgoingGoAwayHandler
-		if err := t.loopy.run(); err != nil {
-			if logger.V(logLevel) {
-				logger.Errorf("transport: loopyWriter.run returning. Err: %v", err)
-			}
+		err := t.loopy.run()
+		if logger.V(logLevel) {
+			logger.Infof("transport: loopyWriter exited. Closing connection. Err: %v", err)
 		}
 		t.conn.Close()
 		t.controlBuf.finish()
@@ -344,8 +345,9 @@ func NewServerTransport(conn net.Conn, config *ServerConfig) (_ ServerTransport,
 	return t, nil
 }
 
-// operateHeader takes action on the decoded headers.
-func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(*Stream), traceCtx func(context.Context, string) context.Context) (fatal bool) {
+// operateHeaders takes action on the decoded headers. Returns an error if fatal
+// error encountered and transport needs to close, otherwise returns nil.
+func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(*Stream), traceCtx func(context.Context, string) context.Context) error {
 	// Acquire max stream ID lock for entire duration
 	t.maxStreamMu.Lock()
 	defer t.maxStreamMu.Unlock()
@@ -361,15 +363,12 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 			rstCode:  http2.ErrCodeFrameSize,
 			onWrite:  func() {},
 		})
-		return false
+		return nil
 	}
 
 	if streamID%2 != 1 || streamID <= t.maxStreamID {
 		// illegal gRPC stream id.
-		if logger.V(logLevel) {
-			logger.Errorf("transport: http2Server.HandleStreams received an illegal stream id: %v", streamID)
-		}
-		return true
+		return fmt.Errorf("received an illegal stream id: %v. headers frame: %+v", streamID, frame)
 	}
 	t.maxStreamID = streamID
 
@@ -381,13 +380,14 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 		fc:  &inFlow{limit: uint32(t.initialWindowSize)},
 	}
 	var (
-		// If a gRPC Response-Headers has already been received, then it means
-		// that the peer is speaking gRPC and we are in gRPC mode.
-		isGRPC     = false
-		mdata      = make(map[string][]string)
-		httpMethod string
-		// headerError is set if an error is encountered while parsing the headers
-		headerError bool
+		// if false, content-type was missing or invalid
+		isGRPC      = false
+		contentType = ""
+		mdata       = make(map[string][]string)
+		httpMethod  string
+		// these are set if an error is encountered while parsing the headers
+		protocolError bool
+		headerError   *status.Status
 
 		timeoutSet bool
 		timeout    time.Duration
@@ -398,6 +398,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 		case "content-type":
 			contentSubtype, validContentType := grpcutil.ContentSubtype(hf.Value)
 			if !validContentType {
+				contentType = hf.Value
 				break
 			}
 			mdata[hf.Name] = append(mdata[hf.Name], hf.Value)
@@ -413,7 +414,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 			timeoutSet = true
 			var err error
 			if timeout, err = decodeTimeout(hf.Value); err != nil {
-				headerError = true
+				headerError = status.Newf(codes.Internal, "malformed grpc-timeout: %v", err)
 			}
 		// "Transports must consider requests containing the Connection header
 		// as malformed." - A41
@@ -421,14 +422,14 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 			if logger.V(logLevel) {
 				logger.Errorf("transport: http2Server.operateHeaders parsed a :connection header which makes a request malformed as per the HTTP/2 spec")
 			}
-			headerError = true
+			protocolError = true
 		default:
 			if isReservedHeader(hf.Name) && !isWhitelistedHeader(hf.Name) {
 				break
 			}
 			v, err := decodeMetadataHeader(hf.Name, hf.Value)
 			if err != nil {
-				headerError = true
+				headerError = status.Newf(codes.Internal, "malformed binary metadata %q in header %q: %v", hf.Value, hf.Name, err)
 				logger.Warningf("Failed to decode metadata header (%q, %q): %v", hf.Name, hf.Value, err)
 				break
 			}
@@ -447,23 +448,43 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 			logger.Errorf("transport: %v", errMsg)
 		}
 		t.controlBuf.put(&earlyAbortStream{
-			httpStatus:     400,
+			httpStatus:     http.StatusBadRequest,
 			streamID:       streamID,
 			contentSubtype: s.contentSubtype,
 			status:         status.New(codes.Internal, errMsg),
 			rst:            !frame.StreamEnded(),
 		})
-		return false
+		return nil
 	}
 
-	if !isGRPC || headerError {
+	if protocolError {
 		t.controlBuf.put(&cleanupStream{
 			streamID: streamID,
 			rst:      true,
 			rstCode:  http2.ErrCodeProtocol,
 			onWrite:  func() {},
 		})
-		return false
+		return nil
+	}
+	if !isGRPC {
+		t.controlBuf.put(&earlyAbortStream{
+			httpStatus:     http.StatusUnsupportedMediaType,
+			streamID:       streamID,
+			contentSubtype: s.contentSubtype,
+			status:         status.Newf(codes.InvalidArgument, "invalid gRPC request content-type %q", contentType),
+			rst:            !frame.StreamEnded(),
+		})
+		return nil
+	}
+	if headerError != nil {
+		t.controlBuf.put(&earlyAbortStream{
+			httpStatus:     http.StatusBadRequest,
+			streamID:       streamID,
+			contentSubtype: s.contentSubtype,
+			status:         headerError,
+			rst:            !frame.StreamEnded(),
+		})
+		return nil
 	}
 
 	// "If :authority is missing, Host must be renamed to :authority." - A41
@@ -503,7 +524,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 	if t.state != reachable {
 		t.mu.Unlock()
 		s.cancel()
-		return false
+		return nil
 	}
 	if uint32(len(t.activeStreams)) >= t.maxStreams {
 		t.mu.Unlock()
@@ -514,7 +535,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 			onWrite:  func() {},
 		})
 		s.cancel()
-		return false
+		return nil
 	}
 	if httpMethod != http.MethodPost {
 		t.mu.Unlock()
@@ -530,7 +551,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 			rst:            !frame.StreamEnded(),
 		})
 		s.cancel()
-		return false
+		return nil
 	}
 	if t.inTapHandle != nil {
 		var err error
@@ -550,7 +571,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 				status:         stat,
 				rst:            !frame.StreamEnded(),
 			})
-			return false
+			return nil
 		}
 	}
 	t.activeStreams[streamID] = s
@@ -597,7 +618,7 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
 		wq:       s.wq,
 	})
 	handle(s)
-	return false
+	return nil
 }
 
 // HandleStreams receives incoming streams using the given handler. This is
@@ -630,19 +651,16 @@ func (t *http2Server) HandleStreams(handle func(*Stream), traceCtx func(context.
 				continue
 			}
 			if err == io.EOF || err == io.ErrUnexpectedEOF {
-				t.Close()
+				t.Close(err)
 				return
 			}
-			if logger.V(logLevel) {
-				logger.Warningf("transport: http2Server.HandleStreams failed to read frame: %v", err)
-			}
-			t.Close()
+			t.Close(err)
 			return
 		}
 		switch frame := frame.(type) {
 		case *http2.MetaHeadersFrame:
-			if t.operateHeaders(frame, handle, traceCtx) {
-				t.Close()
+			if err := t.operateHeaders(frame, handle, traceCtx); err != nil {
+				t.Close(err)
 				break
 			}
 		case *http2.DataFrame:
@@ -843,8 +861,8 @@ const (
 
 func (t *http2Server) handlePing(f *http2.PingFrame) {
 	if f.IsAck() {
-		if f.Data == goAwayPing.data && t.drainChan != nil {
-			close(t.drainChan)
+		if f.Data == goAwayPing.data && t.drainEvent != nil {
+			t.drainEvent.Fire()
 			return
 		}
 		// Maybe it's a BDP ping.
@@ -886,10 +904,7 @@ func (t *http2Server) handlePing(f *http2.PingFrame) {
 
 	if t.pingStrikes > maxPingStrikes {
 		// Send goaway and close the connection.
-		if logger.V(logLevel) {
-			logger.Errorf("transport: Got too many pings from the client, closing the connection.")
-		}
-		t.controlBuf.put(&goAway{code: http2.ErrCodeEnhanceYourCalm, debugData: []byte("too_many_pings"), closeConn: true})
+		t.controlBuf.put(&goAway{code: http2.ErrCodeEnhanceYourCalm, debugData: []byte("too_many_pings"), closeConn: errors.New("got too many pings from the client")})
 	}
 }
 
@@ -1153,7 +1168,7 @@ func (t *http2Server) keepalive() {
 				if logger.V(logLevel) {
 					logger.Infof("transport: closing server transport due to maximum connection age.")
 				}
-				t.Close()
+				t.controlBuf.put(closeConnection{})
 			case <-t.done:
 			}
 			return
@@ -1169,10 +1184,7 @@ func (t *http2Server) keepalive() {
 				continue
 			}
 			if outstandingPing && kpTimeoutLeft <= 0 {
-				if logger.V(logLevel) {
-					logger.Infof("transport: closing server transport due to idleness.")
-				}
-				t.Close()
+				t.Close(fmt.Errorf("keepalive ping not acked within timeout %s", t.kp.Time))
 				return
 			}
 			if !outstandingPing {
@@ -1199,12 +1211,15 @@ func (t *http2Server) keepalive() {
 // Close starts shutting down the http2Server transport.
 // TODO(zhaoq): Now the destruction is not blocked on any pending streams. This
 // could cause some resource issue. Revisit this later.
-func (t *http2Server) Close() {
+func (t *http2Server) Close(err error) {
 	t.mu.Lock()
 	if t.state == closing {
 		t.mu.Unlock()
 		return
 	}
+	if logger.V(logLevel) {
+		logger.Infof("transport: closing: %v", err)
+	}
 	t.state = closing
 	streams := t.activeStreams
 	t.activeStreams = nil
@@ -1295,10 +1310,10 @@ func (t *http2Server) RemoteAddr() net.Addr {
 func (t *http2Server) Drain() {
 	t.mu.Lock()
 	defer t.mu.Unlock()
-	if t.drainChan != nil {
+	if t.drainEvent != nil {
 		return
 	}
-	t.drainChan = make(chan struct{})
+	t.drainEvent = grpcsync.NewEvent()
 	t.controlBuf.put(&goAway{code: http2.ErrCodeNo, debugData: []byte{}, headsUp: true})
 }
 
@@ -1319,19 +1334,20 @@ func (t *http2Server) outgoingGoAwayHandler(g *goAway) (bool, error) {
 		// Stop accepting more streams now.
 		t.state = draining
 		sid := t.maxStreamID
+		retErr := g.closeConn
 		if len(t.activeStreams) == 0 {
-			g.closeConn = true
+			retErr = errors.New("second GOAWAY written and no active streams left to process")
 		}
 		t.mu.Unlock()
 		t.maxStreamMu.Unlock()
 		if err := t.framer.fr.WriteGoAway(sid, g.code, g.debugData); err != nil {
 			return false, err
 		}
-		if g.closeConn {
+		if retErr != nil {
 			// Abruptly close the connection following the GoAway (via
 			// loopywriter).  But flush out what's inside the buffer first.
 			t.framer.writer.Flush()
-			return false, fmt.Errorf("transport: Connection closing")
+			return false, retErr
 		}
 		return true, nil
 	}
@@ -1353,7 +1369,7 @@ func (t *http2Server) outgoingGoAwayHandler(g *goAway) (bool, error) {
 		timer := time.NewTimer(time.Minute)
 		defer timer.Stop()
 		select {
-		case <-t.drainChan:
+		case <-t.drainEvent.Done():
 		case <-timer.C:
 		case <-t.done:
 			return
diff --git a/vendor/google.golang.org/grpc/internal/transport/transport.go b/vendor/google.golang.org/grpc/internal/transport/transport.go
index 2e615ee20..0ac77ea4f 100644
--- a/vendor/google.golang.org/grpc/internal/transport/transport.go
+++ b/vendor/google.golang.org/grpc/internal/transport/transport.go
@@ -583,8 +583,8 @@ type ConnectOptions struct {
 
 // NewClientTransport establishes the transport with the required ConnectOptions
 // and returns it to the caller.
-func NewClientTransport(connectCtx, ctx context.Context, addr resolver.Address, opts ConnectOptions, onGoAway func(GoAwayReason), onClose func()) (ClientTransport, error) {
-	return newHTTP2Client(connectCtx, ctx, addr, opts, onGoAway, onClose)
+func NewClientTransport(connectCtx, ctx context.Context, addr resolver.Address, opts ConnectOptions, onClose func(GoAwayReason)) (ClientTransport, error) {
+	return newHTTP2Client(connectCtx, ctx, addr, opts, onClose)
 }
 
 // Options provides additional hints and information for message
@@ -701,7 +701,7 @@ type ServerTransport interface {
 	// Close tears down the transport. Once it is called, the transport
 	// should not be accessed any more. All the pending streams and their
 	// handlers will be terminated asynchronously.
-	Close()
+	Close(err error)
 
 	// RemoteAddr returns the remote network address.
 	RemoteAddr() net.Addr
diff --git a/vendor/google.golang.org/grpc/picker_wrapper.go b/vendor/google.golang.org/grpc/picker_wrapper.go
index a5d5516ee..c525dc070 100644
--- a/vendor/google.golang.org/grpc/picker_wrapper.go
+++ b/vendor/google.golang.org/grpc/picker_wrapper.go
@@ -58,12 +58,18 @@ func (pw *pickerWrapper) updatePicker(p balancer.Picker) {
 	pw.mu.Unlock()
 }
 
-func doneChannelzWrapper(acw *acBalancerWrapper, done func(balancer.DoneInfo)) func(balancer.DoneInfo) {
+// doneChannelzWrapper performs the following:
+//   - increments the calls started channelz counter
+//   - wraps the done function in the passed in result to increment the calls
+//     failed or calls succeeded channelz counter before invoking the actual
+//     done function.
+func doneChannelzWrapper(acw *acBalancerWrapper, result *balancer.PickResult) {
 	acw.mu.Lock()
 	ac := acw.ac
 	acw.mu.Unlock()
 	ac.incrCallsStarted()
-	return func(b balancer.DoneInfo) {
+	done := result.Done
+	result.Done = func(b balancer.DoneInfo) {
 		if b.Err != nil && b.Err != io.EOF {
 			ac.incrCallsFailed()
 		} else {
@@ -82,7 +88,7 @@ func doneChannelzWrapper(acw *acBalancerWrapper, done func(balancer.DoneInfo)) f
 // - the current picker returns other errors and failfast is false.
 // - the subConn returned by the current picker is not READY
 // When one of these situations happens, pick blocks until the picker gets updated.
-func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.PickInfo) (transport.ClientTransport, func(balancer.DoneInfo), error) {
+func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.PickInfo) (transport.ClientTransport, balancer.PickResult, error) {
 	var ch chan struct{}
 
 	var lastPickErr error
@@ -90,7 +96,7 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
 		pw.mu.Lock()
 		if pw.done {
 			pw.mu.Unlock()
-			return nil, nil, ErrClientConnClosing
+			return nil, balancer.PickResult{}, ErrClientConnClosing
 		}
 
 		if pw.picker == nil {
@@ -111,9 +117,9 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
 				}
 				switch ctx.Err() {
 				case context.DeadlineExceeded:
-					return nil, nil, status.Error(codes.DeadlineExceeded, errStr)
+					return nil, balancer.PickResult{}, status.Error(codes.DeadlineExceeded, errStr)
 				case context.Canceled:
-					return nil, nil, status.Error(codes.Canceled, errStr)
+					return nil, balancer.PickResult{}, status.Error(codes.Canceled, errStr)
 				}
 			case <-ch:
 			}
@@ -125,7 +131,6 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
 		pw.mu.Unlock()
 
 		pickResult, err := p.Pick(info)
-
 		if err != nil {
 			if err == balancer.ErrNoSubConnAvailable {
 				continue
@@ -136,7 +141,7 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
 				if istatus.IsRestrictedControlPlaneCode(st) {
 					err = status.Errorf(codes.Internal, "received picker error with illegal status: %v", err)
 				}
-				return nil, nil, dropError{error: err}
+				return nil, balancer.PickResult{}, dropError{error: err}
 			}
 			// For all other errors, wait for ready RPCs should block and other
 			// RPCs should fail with unavailable.
@@ -144,7 +149,7 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
 				lastPickErr = err
 				continue
 			}
-			return nil, nil, status.Error(codes.Unavailable, err.Error())
+			return nil, balancer.PickResult{}, status.Error(codes.Unavailable, err.Error())
 		}
 
 		acw, ok := pickResult.SubConn.(*acBalancerWrapper)
@@ -154,9 +159,10 @@ func (pw *pickerWrapper) pick(ctx context.Context, failfast bool, info balancer.
 		}
 		if t := acw.getAddrConn().getReadyTransport(); t != nil {
 			if channelz.IsOn() {
-				return t, doneChannelzWrapper(acw, pickResult.Done), nil
+				doneChannelzWrapper(acw, &pickResult)
+				return t, pickResult, nil
 			}
-			return t, pickResult.Done, nil
+			return t, pickResult, nil
 		}
 		if pickResult.Done != nil {
 			// Calling done with nil error, no bytes sent and no bytes received.
diff --git a/vendor/google.golang.org/grpc/pickfirst.go b/vendor/google.golang.org/grpc/pickfirst.go
index fb7a99e0a..fc91b4d26 100644
--- a/vendor/google.golang.org/grpc/pickfirst.go
+++ b/vendor/google.golang.org/grpc/pickfirst.go
@@ -51,7 +51,7 @@ type pickfirstBalancer struct {
 
 func (b *pickfirstBalancer) ResolverError(err error) {
 	if logger.V(2) {
-		logger.Infof("pickfirstBalancer: ResolverError called with error %v", err)
+		logger.Infof("pickfirstBalancer: ResolverError called with error: %v", err)
 	}
 	if b.subConn == nil {
 		b.state = connectivity.TransientFailure
@@ -102,8 +102,8 @@ func (b *pickfirstBalancer) UpdateClientConnState(state balancer.ClientConnState
 	b.subConn = subConn
 	b.state = connectivity.Idle
 	b.cc.UpdateState(balancer.State{
-		ConnectivityState: connectivity.Idle,
-		Picker:            &picker{result: balancer.PickResult{SubConn: b.subConn}},
+		ConnectivityState: connectivity.Connecting,
+		Picker:            &picker{err: balancer.ErrNoSubConnAvailable},
 	})
 	b.subConn.Connect()
 	return nil
diff --git a/vendor/google.golang.org/grpc/regenerate.sh b/vendor/google.golang.org/grpc/regenerate.sh
index 99db79faf..a6f26c8ab 100644
--- a/vendor/google.golang.org/grpc/regenerate.sh
+++ b/vendor/google.golang.org/grpc/regenerate.sh
@@ -57,7 +57,8 @@ LEGACY_SOURCES=(
   ${WORKDIR}/grpc-proto/grpc/health/v1/health.proto
   ${WORKDIR}/grpc-proto/grpc/lb/v1/load_balancer.proto
   profiling/proto/service.proto
-  reflection/grpc_reflection_v1alpha/reflection.proto
+  ${WORKDIR}/grpc-proto/grpc/reflection/v1alpha/reflection.proto
+  ${WORKDIR}/grpc-proto/grpc/reflection/v1/reflection.proto
 )
 
 # Generates only the new gRPC Service symbols
@@ -119,8 +120,4 @@ mv ${WORKDIR}/out/google.golang.org/grpc/lookup/grpc_lookup_v1/* ${WORKDIR}/out/
 # see grpc_testing_not_regenerate/README.md for details.
 rm ${WORKDIR}/out/google.golang.org/grpc/reflection/grpc_testing_not_regenerate/*.pb.go
 
-# grpc/testing does not have a go_package option.
-mv ${WORKDIR}/out/grpc/testing/*.pb.go interop/grpc_testing/
-mv ${WORKDIR}/out/grpc/core/*.pb.go interop/grpc_testing/core/
-
 cp -R ${WORKDIR}/out/google.golang.org/grpc/* .
diff --git a/vendor/google.golang.org/grpc/resolver/resolver.go b/vendor/google.golang.org/grpc/resolver/resolver.go
index 967cbc737..654e9ce69 100644
--- a/vendor/google.golang.org/grpc/resolver/resolver.go
+++ b/vendor/google.golang.org/grpc/resolver/resolver.go
@@ -24,6 +24,7 @@ import (
 	"context"
 	"net"
 	"net/url"
+	"strings"
 
 	"google.golang.org/grpc/attributes"
 	"google.golang.org/grpc/credentials"
@@ -247,9 +248,6 @@ type Target struct {
 	Scheme string
 	// Deprecated: use URL.Host instead.
 	Authority string
-	// Deprecated: use URL.Path or URL.Opaque instead. The latter is set when
-	// the former is empty.
-	Endpoint string
 	// URL contains the parsed dial target with an optional default scheme added
 	// to it if the original dial target contained no scheme or contained an
 	// unregistered scheme. Any query params specified in the original dial
@@ -257,6 +255,24 @@ type Target struct {
 	URL url.URL
 }
 
+// Endpoint retrieves endpoint without leading "/" from either `URL.Path`
+// or `URL.Opaque`. The latter is used when the former is empty.
+func (t Target) Endpoint() string {
+	endpoint := t.URL.Path
+	if endpoint == "" {
+		endpoint = t.URL.Opaque
+	}
+	// For targets of the form "[scheme]://[authority]/endpoint, the endpoint
+	// value returned from url.Parse() contains a leading "/". Although this is
+	// in accordance with RFC 3986, we do not want to break existing resolver
+	// implementations which expect the endpoint without the leading "/". So, we
+	// end up stripping the leading "/" here. But this will result in an
+	// incorrect parsing for something like "unix:///path/to/socket". Since we
+	// own the "unix" resolver, we can workaround in the unix resolver by using
+	// the `URL` field.
+	return strings.TrimPrefix(endpoint, "/")
+}
+
 // Builder creates a resolver that will be used to watch name resolution updates.
 type Builder interface {
 	// Build creates a new resolver for the given target.
diff --git a/vendor/google.golang.org/grpc/rpc_util.go b/vendor/google.golang.org/grpc/rpc_util.go
index 934fc1aa0..cb7020ebe 100644
--- a/vendor/google.golang.org/grpc/rpc_util.go
+++ b/vendor/google.golang.org/grpc/rpc_util.go
@@ -25,7 +25,6 @@ import (
 	"encoding/binary"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"math"
 	"strings"
 	"sync"
@@ -77,7 +76,7 @@ func NewGZIPCompressorWithLevel(level int) (Compressor, error) {
 	return &gzipCompressor{
 		pool: sync.Pool{
 			New: func() interface{} {
-				w, err := gzip.NewWriterLevel(ioutil.Discard, level)
+				w, err := gzip.NewWriterLevel(io.Discard, level)
 				if err != nil {
 					panic(err)
 				}
@@ -143,7 +142,7 @@ func (d *gzipDecompressor) Do(r io.Reader) ([]byte, error) {
 		z.Close()
 		d.pool.Put(z)
 	}()
-	return ioutil.ReadAll(z)
+	return io.ReadAll(z)
 }
 
 func (d *gzipDecompressor) Type() string {
@@ -297,7 +296,8 @@ func (o FailFastCallOption) before(c *callInfo) error {
 func (o FailFastCallOption) after(c *callInfo, attempt *csAttempt) {}
 
 // MaxCallRecvMsgSize returns a CallOption which sets the maximum message size
-// in bytes the client can receive.
+// in bytes the client can receive. If this is not set, gRPC uses the default
+// 4MB.
 func MaxCallRecvMsgSize(bytes int) CallOption {
 	return MaxRecvMsgSizeCallOption{MaxRecvMsgSize: bytes}
 }
@@ -320,7 +320,8 @@ func (o MaxRecvMsgSizeCallOption) before(c *callInfo) error {
 func (o MaxRecvMsgSizeCallOption) after(c *callInfo, attempt *csAttempt) {}
 
 // MaxCallSendMsgSize returns a CallOption which sets the maximum message size
-// in bytes the client can send.
+// in bytes the client can send. If this is not set, gRPC uses the default
+// `math.MaxInt32`.
 func MaxCallSendMsgSize(bytes int) CallOption {
 	return MaxSendMsgSizeCallOption{MaxSendMsgSize: bytes}
 }
@@ -711,7 +712,7 @@ func recvAndDecompress(p *parser, s *transport.Stream, dc Decompressor, maxRecei
 			d, size, err = decompress(compressor, d, maxReceiveMessageSize)
 		}
 		if err != nil {
-			return nil, status.Errorf(codes.Internal, "grpc: failed to decompress the received message %v", err)
+			return nil, status.Errorf(codes.Internal, "grpc: failed to decompress the received message: %v", err)
 		}
 		if size > maxReceiveMessageSize {
 			// TODO: Revisit the error code. Currently keep it consistent with java
@@ -746,7 +747,7 @@ func decompress(compressor encoding.Compressor, d []byte, maxReceiveMessageSize
 	}
 	// Read from LimitReader with limit max+1. So if the underlying
 	// reader is over limit, the result will be bigger than max.
-	d, err = ioutil.ReadAll(io.LimitReader(dcReader, int64(maxReceiveMessageSize)+1))
+	d, err = io.ReadAll(io.LimitReader(dcReader, int64(maxReceiveMessageSize)+1))
 	return d, len(d), err
 }
 
@@ -759,7 +760,7 @@ func recv(p *parser, c baseCodec, s *transport.Stream, dc Decompressor, m interf
 		return err
 	}
 	if err := c.Unmarshal(d, m); err != nil {
-		return status.Errorf(codes.Internal, "grpc: failed to unmarshal the received message %v", err)
+		return status.Errorf(codes.Internal, "grpc: failed to unmarshal the received message: %v", err)
 	}
 	if payInfo != nil {
 		payInfo.uncompressedBytes = d
diff --git a/vendor/google.golang.org/grpc/server.go b/vendor/google.golang.org/grpc/server.go
index f4dde72b4..d5a6e78be 100644
--- a/vendor/google.golang.org/grpc/server.go
+++ b/vendor/google.golang.org/grpc/server.go
@@ -233,10 +233,11 @@ func newJoinServerOption(opts ...ServerOption) ServerOption {
 	return &joinServerOption{opts: opts}
 }
 
-// WriteBufferSize determines how much data can be batched before doing a write on the wire.
-// The corresponding memory allocation for this buffer will be twice the size to keep syscalls low.
-// The default value for this buffer is 32KB.
-// Zero will disable the write buffer such that each write will be on underlying connection.
+// WriteBufferSize determines how much data can be batched before doing a write
+// on the wire. The corresponding memory allocation for this buffer will be
+// twice the size to keep syscalls low. The default value for this buffer is
+// 32KB. Zero or negative values will disable the write buffer such that each
+// write will be on underlying connection.
 // Note: A Send call may not directly translate to a write.
 func WriteBufferSize(s int) ServerOption {
 	return newFuncServerOption(func(o *serverOptions) {
@@ -244,11 +245,10 @@ func WriteBufferSize(s int) ServerOption {
 	})
 }
 
-// ReadBufferSize lets you set the size of read buffer, this determines how much data can be read at most
-// for one read syscall.
-// The default value for this buffer is 32KB.
-// Zero will disable read buffer for a connection so data framer can access the underlying
-// conn directly.
+// ReadBufferSize lets you set the size of read buffer, this determines how much
+// data can be read at most for one read syscall. The default value for this
+// buffer is 32KB. Zero or negative values will disable read buffer for a
+// connection so data framer can access the underlying conn directly.
 func ReadBufferSize(s int) ServerOption {
 	return newFuncServerOption(func(o *serverOptions) {
 		o.readBufferSize = s
@@ -942,7 +942,7 @@ func (s *Server) newHTTP2Transport(c net.Conn) transport.ServerTransport {
 }
 
 func (s *Server) serveStreams(st transport.ServerTransport) {
-	defer st.Close()
+	defer st.Close(errors.New("finished serving streams for the server transport"))
 	var wg sync.WaitGroup
 
 	var roundRobinCounter uint32
@@ -1008,7 +1008,8 @@ var _ http.Handler = (*Server)(nil)
 func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	st, err := transport.NewServerHandlerTransport(w, r, s.opts.statsHandlers)
 	if err != nil {
-		http.Error(w, err.Error(), http.StatusInternalServerError)
+		// Errors returned from transport.NewServerHandlerTransport have
+		// already been written to w.
 		return
 	}
 	if !s.addConn(listenerAddressForServeHTTP, st) {
@@ -1046,7 +1047,7 @@ func (s *Server) addConn(addr string, st transport.ServerTransport) bool {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 	if s.conns == nil {
-		st.Close()
+		st.Close(errors.New("Server.addConn called when server has already been stopped"))
 		return false
 	}
 	if s.drain {
@@ -1150,21 +1151,16 @@ func chainUnaryServerInterceptors(s *Server) {
 
 func chainUnaryInterceptors(interceptors []UnaryServerInterceptor) UnaryServerInterceptor {
 	return func(ctx context.Context, req interface{}, info *UnaryServerInfo, handler UnaryHandler) (interface{}, error) {
-		// the struct ensures the variables are allocated together, rather than separately, since we
-		// know they should be garbage collected together. This saves 1 allocation and decreases
-		// time/call by about 10% on the microbenchmark.
-		var state struct {
-			i    int
-			next UnaryHandler
-		}
-		state.next = func(ctx context.Context, req interface{}) (interface{}, error) {
-			if state.i == len(interceptors)-1 {
-				return interceptors[state.i](ctx, req, info, handler)
-			}
-			state.i++
-			return interceptors[state.i-1](ctx, req, info, state.next)
-		}
-		return state.next(ctx, req)
+		return interceptors[0](ctx, req, info, getChainUnaryHandler(interceptors, 0, info, handler))
+	}
+}
+
+func getChainUnaryHandler(interceptors []UnaryServerInterceptor, curr int, info *UnaryServerInfo, finalHandler UnaryHandler) UnaryHandler {
+	if curr == len(interceptors)-1 {
+		return finalHandler
+	}
+	return func(ctx context.Context, req interface{}) (interface{}, error) {
+		return interceptors[curr+1](ctx, req, info, getChainUnaryHandler(interceptors, curr+1, info, finalHandler))
 	}
 }
 
@@ -1303,7 +1299,7 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 	d, err := recvAndDecompress(&parser{r: stream}, stream, dc, s.opts.maxReceiveMessageSize, payInfo, decomp)
 	if err != nil {
 		if e := t.WriteStatus(stream, status.Convert(err)); e != nil {
-			channelz.Warningf(logger, s.channelzID, "grpc: Server.processUnaryRPC failed to write status %v", e)
+			channelz.Warningf(logger, s.channelzID, "grpc: Server.processUnaryRPC failed to write status: %v", e)
 		}
 		return err
 	}
@@ -1470,21 +1466,16 @@ func chainStreamServerInterceptors(s *Server) {
 
 func chainStreamInterceptors(interceptors []StreamServerInterceptor) StreamServerInterceptor {
 	return func(srv interface{}, ss ServerStream, info *StreamServerInfo, handler StreamHandler) error {
-		// the struct ensures the variables are allocated together, rather than separately, since we
-		// know they should be garbage collected together. This saves 1 allocation and decreases
-		// time/call by about 10% on the microbenchmark.
-		var state struct {
-			i    int
-			next StreamHandler
-		}
-		state.next = func(srv interface{}, ss ServerStream) error {
-			if state.i == len(interceptors)-1 {
-				return interceptors[state.i](srv, ss, info, handler)
-			}
-			state.i++
-			return interceptors[state.i-1](srv, ss, info, state.next)
-		}
-		return state.next(srv, ss)
+		return interceptors[0](srv, ss, info, getChainStreamHandler(interceptors, 0, info, handler))
+	}
+}
+
+func getChainStreamHandler(interceptors []StreamServerInterceptor, curr int, info *StreamServerInfo, finalHandler StreamHandler) StreamHandler {
+	if curr == len(interceptors)-1 {
+		return finalHandler
+	}
+	return func(srv interface{}, stream ServerStream) error {
+		return interceptors[curr+1](srv, stream, info, getChainStreamHandler(interceptors, curr+1, info, finalHandler))
 	}
 }
 
@@ -1819,7 +1810,7 @@ func (s *Server) Stop() {
 	}
 	for _, cs := range conns {
 		for st := range cs {
-			st.Close()
+			st.Close(errors.New("Server.Stop called"))
 		}
 	}
 	if s.opts.numServerWorkers > 0 {
diff --git a/vendor/google.golang.org/grpc/service_config.go b/vendor/google.golang.org/grpc/service_config.go
index 01bbb2025..f22acace4 100644
--- a/vendor/google.golang.org/grpc/service_config.go
+++ b/vendor/google.golang.org/grpc/service_config.go
@@ -226,7 +226,7 @@ func parseServiceConfig(js string) *serviceconfig.ParseResult {
 	var rsc jsonSC
 	err := json.Unmarshal([]byte(js), &rsc)
 	if err != nil {
-		logger.Warningf("grpc: parseServiceConfig error unmarshaling %s due to %v", js, err)
+		logger.Warningf("grpc: unmarshaling service config %s: %v", js, err)
 		return &serviceconfig.ParseResult{Err: err}
 	}
 	sc := ServiceConfig{
@@ -254,7 +254,7 @@ func parseServiceConfig(js string) *serviceconfig.ParseResult {
 		}
 		d, err := parseDuration(m.Timeout)
 		if err != nil {
-			logger.Warningf("grpc: parseServiceConfig error unmarshaling %s due to %v", js, err)
+			logger.Warningf("grpc: unmarshaling service config %s: %v", js, err)
 			return &serviceconfig.ParseResult{Err: err}
 		}
 
@@ -263,7 +263,7 @@ func parseServiceConfig(js string) *serviceconfig.ParseResult {
 			Timeout:      d,
 		}
 		if mc.RetryPolicy, err = convertRetryPolicy(m.RetryPolicy); err != nil {
-			logger.Warningf("grpc: parseServiceConfig error unmarshaling %s due to %v", js, err)
+			logger.Warningf("grpc: unmarshaling service config %s: %v", js, err)
 			return &serviceconfig.ParseResult{Err: err}
 		}
 		if m.MaxRequestMessageBytes != nil {
@@ -283,13 +283,13 @@ func parseServiceConfig(js string) *serviceconfig.ParseResult {
 		for i, n := range *m.Name {
 			path, err := n.generatePath()
 			if err != nil {
-				logger.Warningf("grpc: parseServiceConfig error unmarshaling %s due to methodConfig[%d]: %v", js, i, err)
+				logger.Warningf("grpc: error unmarshaling service config %s due to methodConfig[%d]: %v", js, i, err)
 				return &serviceconfig.ParseResult{Err: err}
 			}
 
 			if _, ok := paths[path]; ok {
 				err = errDuplicatedName
-				logger.Warningf("grpc: parseServiceConfig error unmarshaling %s due to methodConfig[%d]: %v", js, i, err)
+				logger.Warningf("grpc: error unmarshaling service config %s due to methodConfig[%d]: %v", js, i, err)
 				return &serviceconfig.ParseResult{Err: err}
 			}
 			paths[path] = struct{}{}
diff --git a/vendor/google.golang.org/grpc/stream.go b/vendor/google.golang.org/grpc/stream.go
index 960c3e33d..93231af2a 100644
--- a/vendor/google.golang.org/grpc/stream.go
+++ b/vendor/google.golang.org/grpc/stream.go
@@ -416,7 +416,7 @@ func (cs *clientStream) newAttemptLocked(isTransparent bool) (*csAttempt, error)
 		ctx = trace.NewContext(ctx, trInfo.tr)
 	}
 
-	if cs.cc.parsedTarget.Scheme == "xds" {
+	if cs.cc.parsedTarget.URL.Scheme == "xds" {
 		// Add extra metadata (metadata that will be added by transport) to context
 		// so the balancer can see them.
 		ctx = grpcutil.WithExtraMetadata(ctx, metadata.Pairs(
@@ -438,7 +438,7 @@ func (a *csAttempt) getTransport() error {
 	cs := a.cs
 
 	var err error
-	a.t, a.done, err = cs.cc.getTransport(a.ctx, cs.callInfo.failFast, cs.callHdr.Method)
+	a.t, a.pickResult, err = cs.cc.getTransport(a.ctx, cs.callInfo.failFast, cs.callHdr.Method)
 	if err != nil {
 		if de, ok := err.(dropError); ok {
 			err = de.error
@@ -455,6 +455,25 @@ func (a *csAttempt) getTransport() error {
 func (a *csAttempt) newStream() error {
 	cs := a.cs
 	cs.callHdr.PreviousAttempts = cs.numRetries
+
+	// Merge metadata stored in PickResult, if any, with existing call metadata.
+	// It is safe to overwrite the csAttempt's context here, since all state
+	// maintained in it are local to the attempt. When the attempt has to be
+	// retried, a new instance of csAttempt will be created.
+	if a.pickResult.Metatada != nil {
+		// We currently do not have a function it the metadata package which
+		// merges given metadata with existing metadata in a context. Existing
+		// function `AppendToOutgoingContext()` takes a variadic argument of key
+		// value pairs.
+		//
+		// TODO: Make it possible to retrieve key value pairs from metadata.MD
+		// in a form passable to AppendToOutgoingContext(), or create a version
+		// of AppendToOutgoingContext() that accepts a metadata.MD.
+		md, _ := metadata.FromOutgoingContext(a.ctx)
+		md = metadata.Join(md, a.pickResult.Metatada)
+		a.ctx = metadata.NewOutgoingContext(a.ctx, md)
+	}
+
 	s, err := a.t.NewStream(a.ctx, cs.callHdr)
 	if err != nil {
 		nse, ok := err.(*transport.NewStreamError)
@@ -529,12 +548,12 @@ type clientStream struct {
 // csAttempt implements a single transport stream attempt within a
 // clientStream.
 type csAttempt struct {
-	ctx  context.Context
-	cs   *clientStream
-	t    transport.ClientTransport
-	s    *transport.Stream
-	p    *parser
-	done func(balancer.DoneInfo)
+	ctx        context.Context
+	cs         *clientStream
+	t          transport.ClientTransport
+	s          *transport.Stream
+	p          *parser
+	pickResult balancer.PickResult
 
 	finished  bool
 	dc        Decompressor
@@ -1103,12 +1122,12 @@ func (a *csAttempt) finish(err error) {
 		tr = a.s.Trailer()
 	}
 
-	if a.done != nil {
+	if a.pickResult.Done != nil {
 		br := false
 		if a.s != nil {
 			br = a.s.BytesReceived()
 		}
-		a.done(balancer.DoneInfo{
+		a.pickResult.Done(balancer.DoneInfo{
 			Err:           err,
 			Trailer:       tr,
 			BytesSent:     a.s != nil,
@@ -1464,6 +1483,9 @@ type ServerStream interface {
 	// It is safe to have a goroutine calling SendMsg and another goroutine
 	// calling RecvMsg on the same stream at the same time, but it is not safe
 	// to call SendMsg on the same stream in different goroutines.
+	//
+	// It is not safe to modify the message after calling SendMsg. Tracing
+	// libraries and stats handlers may use the message lazily.
 	SendMsg(m interface{}) error
 	// RecvMsg blocks until it receives a message into m or the stream is
 	// done. It returns io.EOF when the client has performed a CloseSend. On
diff --git a/vendor/google.golang.org/grpc/version.go b/vendor/google.golang.org/grpc/version.go
index 2198e7098..fe552c315 100644
--- a/vendor/google.golang.org/grpc/version.go
+++ b/vendor/google.golang.org/grpc/version.go
@@ -19,4 +19,4 @@
 package grpc
 
 // Version is the current grpc version.
-const Version = "1.51.0"
+const Version = "1.53.0"
diff --git a/vendor/google.golang.org/grpc/vet.sh b/vendor/google.golang.org/grpc/vet.sh
index bd8e0cdb3..3728aed04 100644
--- a/vendor/google.golang.org/grpc/vet.sh
+++ b/vendor/google.golang.org/grpc/vet.sh
@@ -66,6 +66,17 @@ elif [[ "$#" -ne 0 ]]; then
   die "Unknown argument(s): $*"
 fi
 
+# - Check that generated proto files are up to date.
+if [[ -z "${VET_SKIP_PROTO}" ]]; then
+  PATH="/home/travis/bin:${PATH}" make proto && \
+    git status --porcelain 2>&1 | fail_on_output || \
+    (git status; git --no-pager diff; exit 1)
+fi
+
+if [[ -n "${VET_ONLY_PROTO}" ]]; then
+  exit 0
+fi
+
 # - Ensure all source files contain a copyright message.
 # (Done in two parts because Darwin "git grep" has broken support for compound
 # exclusion matches.)
@@ -93,13 +104,6 @@ git grep '"github.com/envoyproxy/go-control-plane/envoy' -- '*.go' ':(exclude)*.
 
 misspell -error .
 
-# - Check that generated proto files are up to date.
-if [[ -z "${VET_SKIP_PROTO}" ]]; then
-  PATH="/home/travis/bin:${PATH}" make proto && \
-    git status --porcelain 2>&1 | fail_on_output || \
-    (git status; git --no-pager diff; exit 1)
-fi
-
 # - gofmt, goimports, golint (with exceptions for generated code), go vet,
 # go mod tidy.
 # Perform these checks on each module inside gRPC.
@@ -111,7 +115,7 @@ for MOD_FILE in $(find . -name 'go.mod'); do
   goimports -l . 2>&1 | not grep -vE "\.pb\.go"
   golint ./... 2>&1 | not grep -vE "/grpc_testing_not_regenerate/.*\.pb\.go:"
 
-  go mod tidy
+  go mod tidy -compat=1.17
   git status --porcelain 2>&1 | fail_on_output || \
     (git status; git --no-pager diff; exit 1)
   popd
@@ -121,8 +125,9 @@ done
 #
 # TODO(dfawley): don't use deprecated functions in examples or first-party
 # plugins.
+# TODO(dfawley): enable ST1019 (duplicate imports) but allow for protobufs.
 SC_OUT="$(mktemp)"
-staticcheck -go 1.9 -checks 'inherit,-ST1015' ./... > "${SC_OUT}" || true
+staticcheck -go 1.19 -checks 'inherit,-ST1015,-ST1019,-SA1019' ./... > "${SC_OUT}" || true
 # Error if anything other than deprecation warnings are printed.
 not grep -v "is deprecated:.*SA1019" "${SC_OUT}"
 # Only ignore the following deprecated types/fields/functions.
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 55786722e..5dc4deb69 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -401,7 +401,7 @@ google.golang.org/appengine/internal/log
 google.golang.org/appengine/internal/remote_api
 google.golang.org/appengine/internal/urlfetch
 google.golang.org/appengine/urlfetch
-# google.golang.org/genproto v0.0.0-20221202195650-67e5cbc046fd
+# google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f
 ## explicit; go 1.19
 google.golang.org/genproto/googleapis/api
 google.golang.org/genproto/googleapis/api/annotations
@@ -410,7 +410,7 @@ google.golang.org/genproto/googleapis/api/httpbody
 google.golang.org/genproto/googleapis/rpc/errdetails
 google.golang.org/genproto/googleapis/rpc/status
 google.golang.org/genproto/protobuf/field_mask
-# google.golang.org/grpc v1.51.0
+# google.golang.org/grpc v1.53.0
 ## explicit; go 1.17
 google.golang.org/grpc
 google.golang.org/grpc/attributes