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Merge pull request #36192 from yongtang/02012018-docker_cli_nat_test
Migrate some of the nat tests in integration-cli to api tests
This commit is contained in:
Yong Tang
GitHub
commit
090c5bf25a
2 changed files with 147 additions and 88 deletions
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@ -1,88 +0,0 @@
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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/docker/docker/integration-cli/cli"
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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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"run",
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"--name",
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name,
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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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cli.DockerCmd(c, cmd...)
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cli.WaitRun(c, name)
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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 (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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147
integration/container/nat_test.go
Normal file
147
integration/container/nat_test.go
Normal file
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@ -0,0 +1,147 @@
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package container
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import (
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"bytes"
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"context"
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"fmt"
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"io"
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"io/ioutil"
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"net"
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"strings"
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"testing"
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"time"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/container"
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"github.com/docker/docker/api/types/network"
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"github.com/docker/docker/integration/util/request"
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"github.com/docker/go-connections/nat"
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"github.com/gotestyourself/gotestyourself/poll"
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"github.com/gotestyourself/gotestyourself/skip"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestNetworkNat(t *testing.T) {
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skip.If(t, !testEnv.IsLocalDaemon())
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defer setupTest(t)()
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msg := "it works"
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startServerContainer(t, msg, 8080)
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endpoint := getExternalAddress(t)
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conn, err := net.Dial("tcp", fmt.Sprintf("%s:%d", endpoint.String(), 8080))
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require.NoError(t, err)
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defer conn.Close()
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data, err := ioutil.ReadAll(conn)
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require.NoError(t, err)
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assert.Equal(t, strings.TrimSpace(string(data)), msg)
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}
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func TestNetworkLocalhostTCPNat(t *testing.T) {
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skip.If(t, !testEnv.IsLocalDaemon())
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defer setupTest(t)()
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msg := "hi yall"
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startServerContainer(t, msg, 8081)
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conn, err := net.Dial("tcp", "localhost:8081")
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require.NoError(t, err)
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defer conn.Close()
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data, err := ioutil.ReadAll(conn)
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require.NoError(t, err)
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assert.Equal(t, strings.TrimSpace(string(data)), msg)
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}
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func TestNetworkLoopbackNat(t *testing.T) {
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skip.If(t, !testEnv.IsLocalDaemon())
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msg := "it works"
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startServerContainer(t, msg, 8080)
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endpoint := getExternalAddress(t)
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client := request.NewAPIClient(t)
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ctx := context.Background()
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c, err := client.ContainerCreate(ctx,
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&container.Config{
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Image: "busybox",
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Cmd: []string{"sh", "-c", fmt.Sprintf("stty raw && nc -w 5 %s 8080", endpoint.String())},
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Tty: true,
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},
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&container.HostConfig{
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NetworkMode: "container:server",
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},
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nil,
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"")
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require.NoError(t, err)
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err = client.ContainerStart(ctx, c.ID, types.ContainerStartOptions{})
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require.NoError(t, err)
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poll.WaitOn(t, containerIsStopped(ctx, client, c.ID), poll.WithDelay(100*time.Millisecond))
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body, err := client.ContainerLogs(ctx, c.ID, types.ContainerLogsOptions{
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ShowStdout: true,
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})
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require.NoError(t, err)
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defer body.Close()
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var b bytes.Buffer
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_, err = io.Copy(&b, body)
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require.NoError(t, err)
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assert.Equal(t, strings.TrimSpace(b.String()), msg)
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}
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func startServerContainer(t *testing.T, msg string, port int) string {
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client := request.NewAPIClient(t)
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ctx := context.Background()
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c, err := client.ContainerCreate(ctx,
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&container.Config{
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Image: "busybox",
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Cmd: []string{"sh", "-c", fmt.Sprintf("echo %q | nc -lp %d", msg, port)},
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ExposedPorts: map[nat.Port]struct{}{
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nat.Port(fmt.Sprintf("%d/tcp", port)): {},
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},
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},
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&container.HostConfig{
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PortBindings: nat.PortMap{
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nat.Port(fmt.Sprintf("%d/tcp", port)): []nat.PortBinding{
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{
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HostPort: fmt.Sprintf("%d", port),
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},
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},
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},
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},
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&network.NetworkingConfig{},
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"server",
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)
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require.NoError(t, err)
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err = client.ContainerStart(ctx, c.ID, types.ContainerStartOptions{})
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require.NoError(t, err)
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poll.WaitOn(t, containerIsInState(ctx, client, c.ID, "running"), poll.WithDelay(100*time.Millisecond))
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return c.ID
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}
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func getExternalAddress(t *testing.T) net.IP {
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iface, err := net.InterfaceByName("eth0")
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skip.If(t, err != nil, "Test not running with `make test-integration`. Interface eth0 not found: %s", err)
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ifaceAddrs, err := iface.Addrs()
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require.NoError(t, err)
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assert.NotEqual(t, len(ifaceAddrs), 0)
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ifaceIP, _, err := net.ParseCIDR(ifaceAddrs[0].String())
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require.NoError(t, err)
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return ifaceIP
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}
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