93 lines
2.4 KiB
Go
93 lines
2.4 KiB
Go
package main
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import (
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"fmt"
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"io/ioutil"
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"net"
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"strings"
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"github.com/docker/docker/integration-cli/checker"
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"github.com/go-check/check"
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)
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func startServerContainer(c *check.C, msg string, port int) string {
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name := "server"
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cmd := []string{
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"-d",
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"-p", fmt.Sprintf("%d:%d", port, port),
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"busybox",
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"sh", "-c", fmt.Sprintf("echo %q | nc -lp %d", msg, port),
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}
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c.Assert(waitForContainer(name, cmd...), check.IsNil)
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return name
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}
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func getExternalAddress(c *check.C) net.IP {
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iface, err := net.InterfaceByName("eth0")
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if err != nil {
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c.Skip(fmt.Sprintf("Test not running with `make test`. Interface eth0 not found: %v", err))
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}
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ifaceAddrs, err := iface.Addrs()
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c.Assert(err, check.IsNil)
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c.Assert(ifaceAddrs, checker.Not(checker.HasLen), 0)
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ifaceIP, _, err := net.ParseCIDR(ifaceAddrs[0].String())
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c.Assert(err, check.IsNil)
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return ifaceIP
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}
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func getContainerLogs(c *check.C, containerID string) string {
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out, _ := dockerCmd(c, "logs", containerID)
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return strings.Trim(out, "\r\n")
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}
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func getContainerStatus(c *check.C, containerID string) string {
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out := inspectField(c, containerID, "State.Running")
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return out
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}
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func (s *DockerSuite) TestNetworkNat(c *check.C) {
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testRequires(c, DaemonIsLinux, SameHostDaemon)
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msg := "it works"
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startServerContainer(c, msg, 8080)
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endpoint := getExternalAddress(c)
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conn, err := net.Dial("tcp", fmt.Sprintf("%s:%d", endpoint.String(), 8080))
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c.Assert(err, check.IsNil)
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data, err := ioutil.ReadAll(conn)
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conn.Close()
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c.Assert(err, check.IsNil)
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final := strings.TrimRight(string(data), "\n")
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c.Assert(final, checker.Equals, msg)
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}
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func (s *DockerSuite) TestNetworkLocalhostTCPNat(c *check.C) {
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testRequires(c, DaemonIsLinux, SameHostDaemon)
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var (
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msg = "hi yall"
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)
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startServerContainer(c, msg, 8081)
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conn, err := net.Dial("tcp", "localhost:8081")
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c.Assert(err, check.IsNil)
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data, err := ioutil.ReadAll(conn)
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conn.Close()
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c.Assert(err, check.IsNil)
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final := strings.TrimRight(string(data), "\n")
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c.Assert(final, checker.Equals, msg)
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}
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func (s *DockerSuite) TestNetworkLoopbackNat(c *check.C) {
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testRequires(c, DaemonIsLinux, SameHostDaemon, NotUserNamespace)
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msg := "it works"
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startServerContainer(c, msg, 8080)
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endpoint := getExternalAddress(c)
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out, _ := dockerCmd(c, "run", "-t", "--net=container:server", "busybox",
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"sh", "-c", fmt.Sprintf("stty raw && nc -w 5 %s 8080", endpoint.String()))
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final := strings.TrimRight(string(out), "\n")
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c.Assert(final, checker.Equals, msg)
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}
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