chore(deps): Bump github.com/hashicorp/go-plugin from 1.4.5 to 1.4.6

go.mod

@@ -17,7 +17,7 @@ require (
 	github.com/hashicorp/go-hclog v1.3.1
 	github.com/hashicorp/go-immutable-radix v1.3.1
 	github.com/hashicorp/go-multierror v1.1.1
-	github.com/hashicorp/go-plugin v1.4.5
+	github.com/hashicorp/go-plugin v1.4.6
 	github.com/hashicorp/go-retryablehttp v0.7.1
 	github.com/hashicorp/go-rootcerts v1.0.2
 	github.com/hashicorp/go-secure-stdlib/mlock v0.1.2
@@ -59,7 +59,7 @@ require (
 	k8s.io/client-go v0.25.3
 	k8s.io/code-generator v0.25.3
 	k8s.io/kube-openapi v0.0.0-20221012153701-172d655c2280
-	knative.dev/hack v0.0.0-20221024013916-9d2ae47c16b2
+	knative.dev/hack v0.0.0-20221104013908-8f3c7050408b
 	knative.dev/hack/schema v0.0.0-20221024013916-9d2ae47c16b2
 	knative.dev/pkg v0.0.0-20221027143007-728dfd8e2862
 	sigs.k8s.io/release-utils v0.7.3

go.sum

@@ -770,8 +770,8 @@ github.com/hashicorp/go-multierror v0.0.0-20161216184304-ed905158d874/go.mod h1:
 github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
 github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
 github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
-github.com/hashicorp/go-plugin v1.4.5 h1:oTE/oQR4eghggRg8VY7PAz3dr++VwDNBGCcOfIvHpBo=
-github.com/hashicorp/go-plugin v1.4.5/go.mod h1:viDMjcLJuDui6pXb8U4HVfb8AamCWhHGUjr2IrTF67s=
+github.com/hashicorp/go-plugin v1.4.6 h1:MDV3UrKQBM3du3G7MApDGvOsMYy3JQJ4exhSoKBAeVA=
+github.com/hashicorp/go-plugin v1.4.6/go.mod h1:viDMjcLJuDui6pXb8U4HVfb8AamCWhHGUjr2IrTF67s=
 github.com/hashicorp/go-retryablehttp v0.5.3/go.mod h1:9B5zBasrRhHXnJnui7y6sL7es7NDiJgTc6Er0maI1Xs=
 github.com/hashicorp/go-retryablehttp v0.7.1 h1:sUiuQAnLlbvmExtFQs72iFW/HXeUn8Z1aJLQ4LJJbTQ=
 github.com/hashicorp/go-retryablehttp v0.7.1/go.mod h1:vAew36LZh98gCBJNLH42IQ1ER/9wtLZZ8meHqQvEYWY=
@@ -1972,8 +1972,8 @@ k8s.io/legacy-cloud-providers v0.21.0/go.mod h1:bNxo7gDg+PGkBmT/MFZswLTWdSWK9kAl
 k8s.io/utils v0.0.0-20201110183641-67b214c5f920/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA=
 k8s.io/utils v0.0.0-20221012122500-cfd413dd9e85 h1:cTdVh7LYu82xeClmfzGtgyspNh6UxpwLWGi8R4sspNo=
 k8s.io/utils v0.0.0-20221012122500-cfd413dd9e85/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
-knative.dev/hack v0.0.0-20221024013916-9d2ae47c16b2 h1:DvWcy2c6wvjDo+rPRWe9Rn5QEH8fiq/j4QWOka0wMvQ=
-knative.dev/hack v0.0.0-20221024013916-9d2ae47c16b2/go.mod h1:yk2OjGDsbEnQjfxdm0/HJKS2WqTLEFg/N6nUs6Rqx3Q=
+knative.dev/hack v0.0.0-20221104013908-8f3c7050408b h1:EqqlOqjCy/hVexdmPpUjcplO2eZc12+jTdTpodfLaI4=
+knative.dev/hack v0.0.0-20221104013908-8f3c7050408b/go.mod h1:yk2OjGDsbEnQjfxdm0/HJKS2WqTLEFg/N6nUs6Rqx3Q=
 knative.dev/hack/schema v0.0.0-20221024013916-9d2ae47c16b2 h1:X3EYiEmuqxiVSOPG1CsuRO+QUA956BvUw79A6oXrrs0=
 knative.dev/hack/schema v0.0.0-20221024013916-9d2ae47c16b2/go.mod h1:GeIb+PLd5mllawcpHEGF5J5fYTQrvgEO5liao8lUKUs=
 knative.dev/pkg v0.0.0-20221027143007-728dfd8e2862 h1:nN2KChHl+Cs3tGSLtmkNy21STwb0NRiWomdBw4jMSSU=

third_party/VENDOR-LICENSE/github.com/hashicorp/go-plugin/CHANGELOG.md

@@ -1,3 +1,9 @@
+## v1.4.6
+
+BUG FIXES:
+
+* server: Prevent gRPC broker goroutine leak when using `GRPCServer` type `GracefulStop()` or `Stop()` methods [[GH-220](https://github.com/hashicorp/go-plugin/pull/220)]
+
 ## v1.4.5
 
 ENHANCEMENTS:

third_party/VENDOR-LICENSE/github.com/hashicorp/go-plugin/LICENSE

@@ -1,3 +1,5 @@
+Copyright (c) 2016 HashiCorp, Inc.
+
 Mozilla Public License, version 2.0
 
 1. Definitions

third_party/VENDOR-LICENSE/github.com/hashicorp/go-plugin/grpc_server.go

@@ -107,14 +107,26 @@ func (s *GRPCServer) Init() error {
 	return nil
 }
 
-// Stop calls Stop on the underlying grpc.Server
+// Stop calls Stop on the underlying grpc.Server and Close on the underlying
+// grpc.Broker if present.
 func (s *GRPCServer) Stop() {
 	s.server.Stop()
+
+	if s.broker != nil {
+		s.broker.Close()
+		s.broker = nil
+	}
 }
 
-// GracefulStop calls GracefulStop on the underlying grpc.Server
+// GracefulStop calls GracefulStop on the underlying grpc.Server and Close on
+// the underlying grpc.Broker if present.
 func (s *GRPCServer) GracefulStop() {
 	s.server.GracefulStop()
+
+	if s.broker != nil {
+		s.broker.Close()
+		s.broker = nil
+	}
 }
 
 // Config is the GRPCServerConfig encoded as JSON then base64.

third_party/VENDOR-LICENSE/github.com/hashicorp/go-plugin/rpc_server.go

@@ -42,6 +42,8 @@ func (s *RPCServer) Config() string { return "" }
 
 // ServerProtocol impl.
 func (s *RPCServer) Serve(lis net.Listener) {
+	defer s.done()
+
 	for {
 		conn, err := lis.Accept()
 		if err != nil {
@@ -82,7 +84,7 @@ func (s *RPCServer) ServeConn(conn io.ReadWriteCloser) {
 
 	// Connect the stdstreams (in, out, err)
 	stdstream := make([]net.Conn, 2)
-	for i, _ := range stdstream {
+	for i := range stdstream {
 		stdstream[i], err = mux.Accept()
 		if err != nil {
 			mux.Close()
@@ -133,13 +135,15 @@ type controlServer struct {
 // Ping can be called to verify the connection (and likely the binary)
 // is still alive to a plugin.
 func (c *controlServer) Ping(
-	null bool, response *struct{}) error {
+	null bool, response *struct{},
+) error {
 	*response = struct{}{}
 	return nil
 }
 
 func (c *controlServer) Quit(
-	null bool, response *struct{}) error {
+	null bool, response *struct{},
+) error {
 	// End the server
 	c.server.done()
 
@@ -156,7 +160,8 @@ type dispenseServer struct {
 }
 
 func (d *dispenseServer) Dispense(
-	name string, response *uint32) error {
+	name string, response *uint32,
+) error {
 	// Find the function to create this implementation
 	p, ok := d.plugins[name]
 	if !ok {