Disable libp2p TLS security protocols for now (#2622)

* Disable security protocols for now

* Enabling security for test only. See https://github.com/libp2p/go-libp2p-swarm/issues/124

* Fix spacing

shared/p2p/options.go

@@ -9,6 +9,12 @@ import (
 	"github.com/prysmaticlabs/prysm/shared/iputils"
 )
 
+// Using package global for test. Swarm testing does not allow testing with
+// NoSecurity option enabled. If this is resolved upstream, we can set up swarm
+// with security disabled in the pubsub tests and remove this package global.
+// https://github.com/libp2p/go-libp2p-swarm/issues/124
+var disableSecurity = true
+
 // buildOptions for the libp2p host.
 // TODO(287): Expand on these options and provide the option configuration via flags.
 // Currently, this is a random port and a (seemingly) consistent private key
@@ -24,9 +30,15 @@ func buildOptions(port, maxPeers int) []libp2p.Option {
 		log.Errorf("Failed to p2p listen: %v", err)
 	}
 
-	return []libp2p.Option{
+	opts := []libp2p.Option{
 		libp2p.ListenAddrs(listen),
 		libp2p.EnableRelay(), // Allows dialing to peers via relay.
 		optionConnectionManager(maxPeers),
 	}
+
+	if disableSecurity {
+		opts = append(opts, libp2p.NoSecurity)
+	}
+
+	return opts
 }

shared/p2p/service_test.go

@@ -37,6 +37,10 @@ const testTopic = "test_topic"
 
 func init() {
 	logrus.SetLevel(logrus.DebugLevel)
+
+	// Security required for swarm testing.
+	// https://github.com/libp2p/go-libp2p-swarm/issues/124
+	disableSecurity = false
 }
 
 func TestNewServer_InvalidMultiaddress(t *testing.T) {