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package main
import ( |
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"fmt" |
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"net" |
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"regexp" |
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"sort"
"strings" |
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"github.com/go-check/check" |
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)
|
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func (s *DockerSuite) TestPortList(c *check.C) { |
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testRequires(c, DaemonIsLinux) |
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// one port |
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out, _ := dockerCmd(c, "run", "-d", "-p", "9876:80", "busybox", "top") |
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firstID := strings.TrimSpace(out) |
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|
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out, _ = dockerCmd(c, "port", firstID, "80") |
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|
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if !assertPortList(c, out, []string{"0.0.0.0:9876"}) {
c.Error("Port list is not correct") |
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}
|
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out, _ = dockerCmd(c, "port", firstID) |
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|
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if !assertPortList(c, out, []string{"80/tcp -> 0.0.0.0:9876"}) {
c.Error("Port list is not correct") |
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} |
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dockerCmd(c, "rm", "-f", firstID) |
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// three port |
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out, _ = dockerCmd(c, "run", "-d", |
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"-p", "9876:80",
"-p", "9877:81",
"-p", "9878:82",
"busybox", "top") |
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ID := strings.TrimSpace(out) |
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|
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out, _ = dockerCmd(c, "port", ID, "80") |
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|
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if !assertPortList(c, out, []string{"0.0.0.0:9876"}) {
c.Error("Port list is not correct") |
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}
|
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out, _ = dockerCmd(c, "port", ID) |
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|
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if !assertPortList(c, out, []string{ |
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"80/tcp -> 0.0.0.0:9876",
"81/tcp -> 0.0.0.0:9877",
"82/tcp -> 0.0.0.0:9878"}) { |
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c.Error("Port list is not correct") |
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} |
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dockerCmd(c, "rm", "-f", ID) |
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// more and one port mapped to the same container port |
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out, _ = dockerCmd(c, "run", "-d", |
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"-p", "9876:80",
"-p", "9999:80",
"-p", "9877:81",
"-p", "9878:82",
"busybox", "top") |
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ID = strings.TrimSpace(out) |
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|
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out, _ = dockerCmd(c, "port", ID, "80") |
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|
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if !assertPortList(c, out, []string{"0.0.0.0:9876", "0.0.0.0:9999"}) {
c.Error("Port list is not correct") |
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}
|
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out, _ = dockerCmd(c, "port", ID) |
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|
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if !assertPortList(c, out, []string{ |
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"80/tcp -> 0.0.0.0:9876",
"80/tcp -> 0.0.0.0:9999",
"81/tcp -> 0.0.0.0:9877",
"82/tcp -> 0.0.0.0:9878"}) { |
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c.Error("Port list is not correct\n", out) |
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} |
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dockerCmd(c, "rm", "-f", ID) |
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|
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testRange := func() {
// host port ranges used
IDs := make([]string, 3)
for i := 0; i < 3; i++ {
out, _ = dockerCmd(c, "run", "-d",
"-p", "9090-9092:80",
"busybox", "top")
IDs[i] = strings.TrimSpace(out)
out, _ = dockerCmd(c, "port", IDs[i])
if !assertPortList(c, out, []string{
fmt.Sprintf("80/tcp -> 0.0.0.0:%d", 9090+i)}) {
c.Error("Port list is not correct\n", out)
}
}
// test port range exhaustion
out, _, err := dockerCmdWithError("run", "-d",
"-p", "9090-9092:80",
"busybox", "top")
if err == nil {
c.Errorf("Exhausted port range did not return an error. Out: %s", out)
}
for i := 0; i < 3; i++ {
dockerCmd(c, "rm", "-f", IDs[i])
}
}
testRange()
// Verify we ran re-use port ranges after they are no longer in use.
testRange()
// test invalid port ranges
for _, invalidRange := range []string{"9090-9089:80", "9090-:80", "-9090:80"} {
out, _, err := dockerCmdWithError("run", "-d",
"-p", invalidRange,
"busybox", "top")
if err == nil {
c.Errorf("Port range should have returned an error. Out: %s", out)
}
}
// test host range:container range spec.
out, _ = dockerCmd(c, "run", "-d",
"-p", "9800-9803:80-83",
"busybox", "top")
ID = strings.TrimSpace(out)
out, _ = dockerCmd(c, "port", ID)
if !assertPortList(c, out, []string{
"80/tcp -> 0.0.0.0:9800",
"81/tcp -> 0.0.0.0:9801",
"82/tcp -> 0.0.0.0:9802",
"83/tcp -> 0.0.0.0:9803"}) {
c.Error("Port list is not correct\n", out)
}
dockerCmd(c, "rm", "-f", ID)
// test mixing protocols in same port range
out, _ = dockerCmd(c, "run", "-d",
"-p", "8000-8080:80",
"-p", "8000-8080:80/udp",
"busybox", "top")
ID = strings.TrimSpace(out)
out, _ = dockerCmd(c, "port", ID)
if !assertPortList(c, out, []string{
"80/tcp -> 0.0.0.0:8000",
"80/udp -> 0.0.0.0:8000"}) {
c.Error("Port list is not correct\n", out)
}
dockerCmd(c, "rm", "-f", ID) |
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}
|
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func assertPortList(c *check.C, out string, expected []string) bool { |
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//lines := strings.Split(out, "\n")
lines := strings.Split(strings.Trim(out, "\n "), "\n")
if len(lines) != len(expected) { |
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c.Errorf("different size lists %s, %d, %d", out, len(lines), len(expected)) |
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return false
}
sort.Strings(lines)
sort.Strings(expected)
for i := 0; i < len(expected); i++ {
if lines[i] != expected[i] { |
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c.Error("|" + lines[i] + "!=" + expected[i] + "|") |
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return false
}
}
return true
} |
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|
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func stopRemoveContainer(id string, c *check.C) { |
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dockerCmd(c, "rm", "-f", id) |
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}
func (s *DockerSuite) TestUnpublishedPortsInPsOutput(c *check.C) { |
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testRequires(c, DaemonIsLinux) |
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// Run busybox with command line expose (equivalent to EXPOSE in image's Dockerfile) for the following ports
port1 := 80
port2 := 443
expose1 := fmt.Sprintf("--expose=%d", port1)
expose2 := fmt.Sprintf("--expose=%d", port2) |
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dockerCmd(c, "run", "-d", expose1, expose2, "busybox", "sleep", "5") |
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// Check docker ps o/p for last created container reports the unpublished ports
unpPort1 := fmt.Sprintf("%d/tcp", port1)
unpPort2 := fmt.Sprintf("%d/tcp", port2) |
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out, _ := dockerCmd(c, "ps", "-n=1") |
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if !strings.Contains(out, unpPort1) || !strings.Contains(out, unpPort2) {
c.Errorf("Missing unpublished ports(s) (%s, %s) in docker ps output: %s", unpPort1, unpPort2, out)
}
// Run the container forcing to publish the exposed ports |
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dockerCmd(c, "run", "-d", "-P", expose1, expose2, "busybox", "sleep", "5") |
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// Check docker ps o/p for last created container reports the exposed ports in the port bindings
expBndRegx1 := regexp.MustCompile(`0.0.0.0:\d\d\d\d\d->` + unpPort1)
expBndRegx2 := regexp.MustCompile(`0.0.0.0:\d\d\d\d\d->` + unpPort2) |
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out, _ = dockerCmd(c, "ps", "-n=1") |
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if !expBndRegx1.MatchString(out) || !expBndRegx2.MatchString(out) {
c.Errorf("Cannot find expected port binding ports(s) (0.0.0.0:xxxxx->%s, 0.0.0.0:xxxxx->%s) in docker ps output:\n%s",
unpPort1, unpPort2, out)
}
// Run the container specifying explicit port bindings for the exposed ports
offset := 10000
pFlag1 := fmt.Sprintf("%d:%d", offset+port1, port1)
pFlag2 := fmt.Sprintf("%d:%d", offset+port2, port2) |
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out, _ = dockerCmd(c, "run", "-d", "-p", pFlag1, "-p", pFlag2, expose1, expose2, "busybox", "sleep", "5") |
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id := strings.TrimSpace(out)
// Check docker ps o/p for last created container reports the specified port mappings
expBnd1 := fmt.Sprintf("0.0.0.0:%d->%s", offset+port1, unpPort1)
expBnd2 := fmt.Sprintf("0.0.0.0:%d->%s", offset+port2, unpPort2) |
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out, _ = dockerCmd(c, "ps", "-n=1") |
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if !strings.Contains(out, expBnd1) || !strings.Contains(out, expBnd2) {
c.Errorf("Cannot find expected port binding(s) (%s, %s) in docker ps output: %s", expBnd1, expBnd2, out)
}
// Remove container now otherwise it will interfeer with next test
stopRemoveContainer(id, c)
// Run the container with explicit port bindings and no exposed ports |
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out, _ = dockerCmd(c, "run", "-d", "-p", pFlag1, "-p", pFlag2, "busybox", "sleep", "5") |
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id = strings.TrimSpace(out)
// Check docker ps o/p for last created container reports the specified port mappings |
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out, _ = dockerCmd(c, "ps", "-n=1") |
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if !strings.Contains(out, expBnd1) || !strings.Contains(out, expBnd2) {
c.Errorf("Cannot find expected port binding(s) (%s, %s) in docker ps output: %s", expBnd1, expBnd2, out)
}
// Remove container now otherwise it will interfeer with next test
stopRemoveContainer(id, c)
// Run the container with one unpublished exposed port and one explicit port binding |
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dockerCmd(c, "run", "-d", expose1, "-p", pFlag2, "busybox", "sleep", "5") |
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// Check docker ps o/p for last created container reports the specified unpublished port and port mapping |
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out, _ = dockerCmd(c, "ps", "-n=1") |
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if !strings.Contains(out, unpPort1) || !strings.Contains(out, expBnd2) {
c.Errorf("Missing unpublished ports or port binding (%s, %s) in docker ps output: %s", unpPort1, expBnd2, out)
}
} |
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func (s *DockerSuite) TestPortHostBinding(c *check.C) { |
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testRequires(c, DaemonIsLinux, NotUserNamespace) |
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out, _ := dockerCmd(c, "run", "-d", "-p", "9876:80", "busybox",
"nc", "-l", "-p", "80")
firstID := strings.TrimSpace(out)
out, _ = dockerCmd(c, "port", firstID, "80")
if !assertPortList(c, out, []string{"0.0.0.0:9876"}) {
c.Error("Port list is not correct")
}
dockerCmd(c, "run", "--net=host", "busybox",
"nc", "localhost", "9876")
dockerCmd(c, "rm", "-f", firstID)
if _, _, err := dockerCmdWithError("run", "--net=host", "busybox",
"nc", "localhost", "9876"); err == nil {
c.Error("Port is still bound after the Container is removed")
}
}
func (s *DockerSuite) TestPortExposeHostBinding(c *check.C) { |
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testRequires(c, DaemonIsLinux, NotUserNamespace) |
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out, _ := dockerCmd(c, "run", "-d", "-P", "--expose", "80", "busybox",
"nc", "-l", "-p", "80")
firstID := strings.TrimSpace(out)
out, _ = dockerCmd(c, "port", firstID, "80")
_, exposedPort, err := net.SplitHostPort(out)
if err != nil {
c.Fatal(out, err)
}
dockerCmd(c, "run", "--net=host", "busybox",
"nc", "localhost", strings.TrimSpace(exposedPort))
dockerCmd(c, "rm", "-f", firstID)
if _, _, err = dockerCmdWithError("run", "--net=host", "busybox",
"nc", "localhost", strings.TrimSpace(exposedPort)); err == nil {
c.Error("Port is still bound after the Container is removed")
}
} |