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|
package main
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"strings"
"testing"
"github.com/dotcloud/docker/pkg/iptables"
)
func TestEtcHostsRegularFile(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "--net=host", "busybox", "ls", "-la", "/etc/hosts")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
if !strings.HasPrefix(out, "-") {
t.Errorf("/etc/hosts should be a regular file")
}
deleteAllContainers()
logDone("link - /etc/hosts is a regular file")
}
func TestEtcHostsContentMatch(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "--net=host", "busybox", "cat", "/etc/hosts")
out, _, _, err := runCommandWithStdoutStderr(runCmd)
errorOut(err, t, out)
hosts, err := ioutil.ReadFile("/etc/hosts")
if os.IsNotExist(err) {
t.Skip("/etc/hosts does not exist, skip this test")
}
if out != string(hosts) {
t.Errorf("container")
}
deleteAllContainers()
logDone("link - /etc/hosts matches hosts copy")
}
func TestPingUnlinkedContainers(t *testing.T) {
runCmd := exec.Command(dockerBinary, "run", "--rm", "busybox", "sh", "-c", "ping -c 1 alias1 -W 1 && ping -c 1 alias2 -W 1")
exitCode, err := runCommand(runCmd)
if exitCode == 0 {
t.Fatal("run ping did not fail")
} else if exitCode != 1 {
errorOut(err, t, fmt.Sprintf("run ping failed with errors: %v", err))
}
}
func TestPingLinkedContainers(t *testing.T) {
var out string
out, _, _ = cmd(t, "run", "-d", "--name", "container1", "busybox", "sleep", "10")
idA := stripTrailingCharacters(out)
out, _, _ = cmd(t, "run", "-d", "--name", "container2", "busybox", "sleep", "10")
idB := stripTrailingCharacters(out)
cmd(t, "run", "--rm", "--link", "container1:alias1", "--link", "container2:alias2", "busybox", "sh", "-c", "ping -c 1 alias1 -W 1 && ping -c 1 alias2 -W 1")
cmd(t, "kill", idA)
cmd(t, "kill", idB)
deleteAllContainers()
}
func TestIpTablesRulesWhenLinkAndUnlink(t *testing.T) {
cmd(t, "run", "-d", "--name", "child", "--publish", "8080:80", "busybox", "sleep", "10")
cmd(t, "run", "-d", "--name", "parent", "--link", "child:http", "busybox", "sleep", "10")
childIp := findContainerIp(t, "child")
parentIp := findContainerIp(t, "parent")
sourceRule := []string{"FORWARD", "-i", "docker0", "-o", "docker0", "-p", "tcp", "-s", childIp, "--sport", "80", "-d", parentIp, "-j", "ACCEPT"}
destinationRule := []string{"FORWARD", "-i", "docker0", "-o", "docker0", "-p", "tcp", "-s", parentIp, "--dport", "80", "-d", childIp, "-j", "ACCEPT"}
if !iptables.Exists(sourceRule...) || !iptables.Exists(destinationRule...) {
t.Fatal("Iptables rules not found")
}
cmd(t, "rm", "--link", "parent/http")
if iptables.Exists(sourceRule...) || iptables.Exists(destinationRule...) {
t.Fatal("Iptables rules should be removed when unlink")
}
cmd(t, "kill", "child")
cmd(t, "kill", "parent")
deleteAllContainers()
logDone("link - verify iptables when link and unlink")
}
func TestInspectLinksStarted(t *testing.T) {
defer deleteAllContainers()
cmd(t, "run", "-d", "--name", "container1", "busybox", "sleep", "10")
cmd(t, "run", "-d", "--name", "container2", "busybox", "sleep", "10")
cmd(t, "run", "-d", "--name", "testinspectlink", "--link", "container1:alias1", "--link", "container2:alias2", "busybox", "sleep", "10")
links, err := inspectField("testinspectlink", "HostConfig.Links")
if err != nil {
t.Fatal(err)
}
if expected := "[/container1:/testinspectlink/alias1 /container2:/testinspectlink/alias2]"; links != expected {
t.Fatalf("Links %s, but expected %s", links, expected)
}
logDone("link - links in started container inspect")
}
func TestInspectLinksStopped(t *testing.T) {
defer deleteAllContainers()
cmd(t, "run", "-d", "--name", "container1", "busybox", "sleep", "10")
cmd(t, "run", "-d", "--name", "container2", "busybox", "sleep", "10")
cmd(t, "run", "-d", "--name", "testinspectlink", "--link", "container1:alias1", "--link", "container2:alias2", "busybox", "true")
links, err := inspectField("testinspectlink", "HostConfig.Links")
if err != nil {
t.Fatal(err)
}
if expected := "[/container1:/testinspectlink/alias1 /container2:/testinspectlink/alias2]"; links != expected {
t.Fatalf("Links %s, but expected %s", links, expected)
}
logDone("link - links in stopped container inspect")
}
|
