remove Status.RPCServers endpoint

Author: tgross

.semgrep/rpc_endpoint.yml

@@ -103,7 +103,6 @@ rules:
             - pattern-not: '"CSIPlugin.List"'
             - pattern-not: '"Status.Leader"'
             - pattern-not: '"Status.Peers"'
-            - pattern-not: '"Status.RPCServers"'
             - pattern-not: '"Status.Version"'
     message: "RPC method $METHOD appears to be unauthenticated"
     languages:

nomad/status_endpoint.go

@@ -78,33 +78,6 @@ func (s *Status) Peers(args *structs.GenericRequest, reply *[]string) error {
 	return nil
 }
 
-// RPCServers is used to get all the RPC server addresses in a region
-func (s *Status) RPCServers(args *structs.GenericRequest, reply *structs.RPCServersResponse) error {
-	// note: we're intentionally throwing away any auth error here and only
-	// authenticate so that we can measure rate metrics
-	s.srv.Authenticate(s.ctx, args)
-	s.srv.MeasureRPCRate("status", structs.RateMetricList, args)
-
-	if args.Region == "" {
-		args.Region = s.srv.config.Region
-	}
-	if done, err := s.srv.forward("Status.RPCServers", args, args, reply); done {
-		return err
-	}
-
-	future := s.srv.raft.GetConfiguration()
-	if err := future.Error(); err != nil {
-		return err
-	}
-
-	for _, server := range future.Configuration().Servers {
-		if peer, ok := s.srv.localPeers[server.Address]; ok {
-			reply.Addresses = append(reply.Addresses, peer.RPCAddr.String())
-		}
-	}
-	return nil
-}
-
 // Members return the list of servers in a cluster that a particular server is
 // aware of
 func (s *Status) Members(args *structs.GenericRequest, reply *structs.ServerMembersResponse) error {

nomad/status_endpoint_test.go

@@ -1,21 +1,17 @@
 package nomad
 
 import (
-	"fmt"
-	"net"
 	"testing"
 
 	msgpackrpc "github.com/hashicorp/net-rpc-msgpackrpc"
-	"github.com/shoenig/test/must"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-
 	"github.com/hashicorp/nomad/acl"
 	"github.com/hashicorp/nomad/ci"
 	"github.com/hashicorp/nomad/helper/uuid"
 	"github.com/hashicorp/nomad/nomad/mock"
 	"github.com/hashicorp/nomad/nomad/structs"
 	"github.com/hashicorp/nomad/testutil"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func TestStatusPing(t *testing.T) {
@@ -77,54 +73,6 @@ func TestStatusPeers(t *testing.T) {
 	}
 }
 
-func TestStatus_RPCServers(t *testing.T) {
-	ci.Parallel(t)
-
-	advAddr1 := "127.0.1.1:1234"
-	adv1, err := net.ResolveTCPAddr("tcp", advAddr1)
-	must.NoError(t, err)
-
-	s1, cleanupS1 := TestServer(t, func(c *Config) {
-		c.Region = "region1"
-		c.ClientRPCAdvertise = adv1
-	})
-	defer cleanupS1()
-
-	s2, cleanupS2 := TestServer(t, func(c *Config) {
-		c.Region = "region2"
-	})
-	defer cleanupS2()
-
-	// Join them together
-	s2Addr := fmt.Sprintf("127.0.0.1:%d", s2.config.SerfConfig.MemberlistConfig.BindPort)
-	n, err := s1.Join([]string{s2Addr})
-	must.NoError(t, err, must.Sprintf("Failed joining: %v (%d joined)", err, n))
-
-	codec := rpcClient(t, s1)
-
-	t.Run("own region", func(t *testing.T) {
-		arg := &structs.GenericRequest{
-			QueryOptions: structs.QueryOptions{Region: "region1"},
-		}
-		var resp *structs.RPCServersResponse
-		must.NoError(t, msgpackrpc.CallWithCodec(codec, "Status.RPCServers", arg, &resp))
-		must.NotNil(t, resp)
-		must.Len(t, 1, resp.Addresses)
-		must.Eq(t, advAddr1, resp.Addresses[0])
-	})
-
-	t.Run("other region", func(t *testing.T) {
-		arg := &structs.GenericRequest{
-			QueryOptions: structs.QueryOptions{Region: "region2"},
-		}
-		var resp *structs.RPCServersResponse
-		must.NoError(t, msgpackrpc.CallWithCodec(codec, "Status.RPCServers", arg, &resp))
-		must.NotNil(t, resp)
-		must.Len(t, 1, resp.Addresses)
-		must.Eq(t, s2.clientRpcAdvertise.String(), resp.Addresses[0])
-	})
-}
-
 func TestStatusMembers(t *testing.T) {
 	ci.Parallel(t)
 

nomad/structs/structs.go

@@ -1171,11 +1171,6 @@ type PeriodicForceRequest struct {
 	WriteRequest
 }
 
-// RPCServersResponse contains the list of RPC addresses for servers in this region
-type RPCServersResponse struct {
-	Addresses []string
-}
-
 // ServerMembersResponse has the list of servers in a cluster
 type ServerMembersResponse struct {
 	ServerName   string