blob: a0773fefe05390bbda1e47bf420dde66c9def22a [file] [log] [blame]
package main
import (
"fmt"
"io/ioutil"
"net"
"strings"
"github.com/go-check/check"
)
func startServerContainer(c *check.C, msg string, port int) string {
name := "server"
cmd := []string{
"-d",
"-p", fmt.Sprintf("%d:%d", port, port),
"busybox",
"sh", "-c", fmt.Sprintf("echo %q | nc -lp %d", msg, port),
}
if err := waitForContainer(name, cmd...); err != nil {
c.Fatalf("Failed to launch server container: %v", err)
}
return name
}
func getExternalAddress(c *check.C) net.IP {
iface, err := net.InterfaceByName("eth0")
if err != nil {
c.Skip(fmt.Sprintf("Test not running with `make test`. Interface eth0 not found: %v", err))
}
ifaceAddrs, err := iface.Addrs()
if err != nil || len(ifaceAddrs) == 0 {
c.Fatalf("Error retrieving addresses for eth0: %v (%d addresses)", err, len(ifaceAddrs))
}
ifaceIP, _, err := net.ParseCIDR(ifaceAddrs[0].String())
if err != nil {
c.Fatalf("Error retrieving the up for eth0: %s", err)
}
return ifaceIP
}
func getContainerLogs(c *check.C, containerID string) string {
out, _ := dockerCmd(c, "logs", containerID)
return strings.Trim(out, "\r\n")
}
func getContainerStatus(c *check.C, containerID string) string {
out, err := inspectField(containerID, "State.Running")
c.Assert(err, check.IsNil)
return out
}
func (s *DockerSuite) TestNetworkNat(c *check.C) {
testRequires(c, SameHostDaemon, NativeExecDriver)
msg := "it works"
startServerContainer(c, msg, 8080)
endpoint := getExternalAddress(c)
conn, err := net.Dial("tcp", fmt.Sprintf("%s:%d", endpoint.String(), 8080))
if err != nil {
c.Fatalf("Failed to connect to container (%v)", err)
}
data, err := ioutil.ReadAll(conn)
conn.Close()
if err != nil {
c.Fatal(err)
}
final := strings.TrimRight(string(data), "\n")
if final != msg {
c.Fatalf("Expected message %q but received %q", msg, final)
}
}
func (s *DockerSuite) TestNetworkLocalhostTCPNat(c *check.C) {
testRequires(c, SameHostDaemon, NativeExecDriver)
var (
msg = "hi yall"
)
startServerContainer(c, msg, 8081)
conn, err := net.Dial("tcp", "localhost:8081")
if err != nil {
c.Fatalf("Failed to connect to container (%v)", err)
}
data, err := ioutil.ReadAll(conn)
conn.Close()
if err != nil {
c.Fatal(err)
}
final := strings.TrimRight(string(data), "\n")
if final != msg {
c.Fatalf("Expected message %q but received %q", msg, final)
}
}
func (s *DockerSuite) TestNetworkLoopbackNat(c *check.C) {
testRequires(c, SameHostDaemon, NativeExecDriver)
msg := "it works"
startServerContainer(c, msg, 8080)
endpoint := getExternalAddress(c)
out, _ := dockerCmd(c, "run", "-t", "--net=container:server", "busybox",
"sh", "-c", fmt.Sprintf("stty raw && nc -w 5 %s 8080", endpoint.String()))
final := strings.TrimRight(string(out), "\n")
if final != msg {
c.Fatalf("Expected message %q but received %q", msg, final)
}
}