Add proxy config

broker.go

@@ -156,6 +156,8 @@ func (b *Broker) Open(conf *Config) error {
 
 		if conf.Net.TLS.Enable {
 			b.conn, b.connErr = tls.DialWithDialer(&dialer, "tcp", b.addr, conf.Net.TLS.Config)
+		} else if conf.Net.Proxy.Enable {
+			b.conn, b.connErr = conf.Net.Proxy.Dialer.Dial("tcp", b.addr)
 		} else {
 			b.conn, b.connErr = dialer.Dial("tcp", b.addr)
 		}

config.go

@@ -10,6 +10,7 @@ import (
 	"time"
 
 	"github.com/rcrowley/go-metrics"
+	"golang.org/x/net/proxy"
 )
 
 const defaultClientID = "sarama"
@@ -85,6 +86,14 @@ type Config struct {
 		// network being dialed.
 		// If nil, a local address is automatically chosen.
 		LocalAddr net.Addr
+
+		Proxy struct {
+			// Whether or not to use proxy when connecting to the broker
+			// (defaults to false).
+			Enable bool
+			// The proxy dialer to use enabled (defaults to nil).
+			Dialer proxy.Dialer
+		}
 	}
 
 	// Metadata is the namespace for metadata management properties used by the

go.mod

@@ -12,6 +12,5 @@ require (
 	github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a
 	github.com/xdg/scram v0.0.0-20180814205039-7eeb5667e42c
 	github.com/xdg/stringprep v1.0.0 // indirect
-	golang.org/x/crypto v0.0.0-20190228161510-8dd112bcdc25 // indirect
-	golang.org/x/text v0.3.0 // indirect
+	golang.org/x/net v0.0.0-20190327091125-710a502c58a2
 )

go.sum

@@ -22,6 +22,9 @@ github.com/xdg/stringprep v1.0.0 h1:d9X0esnoa3dFsV0FG35rAT0RIhYFlPq7MiP+DW89La0=
 github.com/xdg/stringprep v1.0.0/go.mod h1:Jhud4/sHMO4oL310DaZAKk9ZaJ08SJfe+sJh0HrGL1Y=
 golang.org/x/crypto v0.0.0-20190228161510-8dd112bcdc25 h1:jsG6UpNLt9iAsb0S2AGW28DveNzzgmbXR+ENoPjUeIU=
 golang.org/x/crypto v0.0.0-20190228161510-8dd112bcdc25/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/net v0.0.0-20190327091125-710a502c58a2 h1:17UhVDrPb40BH5k6cyeb2V/7QlBNdo/a0+r0dtK+Utw=
+golang.org/x/net v0.0.0-20190327091125-710a502c58a2/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=