60 lines
1.6 KiB
Go
60 lines
1.6 KiB
Go
package main
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import (
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"fmt"
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"net"
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"os/exec"
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"strings"
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"testing"
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)
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func TestNetworkNat(t *testing.T) {
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iface, err := net.InterfaceByName("eth0")
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if err != nil {
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t.Skipf("Test not running with `make test`. Interface eth0 not found: %s", err)
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}
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ifaceAddrs, err := iface.Addrs()
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if err != nil || len(ifaceAddrs) == 0 {
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t.Fatalf("Error retrieving addresses for eth0: %v (%d addresses)", err, len(ifaceAddrs))
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}
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ifaceIP, _, err := net.ParseCIDR(ifaceAddrs[0].String())
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if err != nil {
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t.Fatalf("Error retrieving the up for eth0: %s", err)
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}
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runCmd := exec.Command(dockerBinary, "run", "-dt", "-p", "8080:8080", "busybox", "nc", "-lp", "8080")
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out, _, err := runCommandWithOutput(runCmd)
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if err != nil {
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t.Fatal(out, err)
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}
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cleanedContainerID := stripTrailingCharacters(out)
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runCmd = exec.Command(dockerBinary, "run", "busybox", "sh", "-c", fmt.Sprintf("echo hello world | nc -w 30 %s 8080", ifaceIP))
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out, _, err = runCommandWithOutput(runCmd)
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if err != nil {
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t.Fatal(out, err)
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}
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runCmd = exec.Command(dockerBinary, "logs", cleanedContainerID)
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out, _, err = runCommandWithOutput(runCmd)
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if err != nil {
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t.Fatalf("failed to retrieve logs for container: %s, %v", out, err)
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}
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out = strings.Trim(out, "\r\n")
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if expected := "hello world"; out != expected {
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t.Fatalf("Unexpected output. Expected: %q, received: %q for iface %s", expected, out, ifaceIP)
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}
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killCmd := exec.Command(dockerBinary, "kill", cleanedContainerID)
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if out, _, err = runCommandWithOutput(killCmd); err != nil {
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t.Fatalf("failed to kill container: %s, %v", out, err)
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}
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deleteAllContainers()
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logDone("network - make sure nat works through the host")
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}
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