mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
9f0b3f5609
full diff: https://github.com/gotestyourself/gotest.tools/compare/v2.3.0...v3.0.1 Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
240 lines
9.1 KiB
Go
240 lines
9.1 KiB
Go
package main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"regexp"
|
|
"sort"
|
|
"strings"
|
|
"testing"
|
|
|
|
"github.com/docker/docker/runconfig"
|
|
"gotest.tools/v3/assert"
|
|
"gotest.tools/v3/assert/cmp"
|
|
)
|
|
|
|
func (s *DockerSuite) TestLinksPingUnlinkedContainers(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
_, exitCode, err := dockerCmdWithError("run", "--rm", "busybox", "sh", "-c", "ping -c 1 alias1 -W 1 && ping -c 1 alias2 -W 1")
|
|
|
|
// run ping failed with error
|
|
assert.Equal(c, exitCode, 1, fmt.Sprintf("error: %v", err))
|
|
}
|
|
|
|
// Test for appropriate error when calling --link with an invalid target container
|
|
func (s *DockerSuite) TestLinksInvalidContainerTarget(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
out, _, err := dockerCmdWithError("run", "--link", "bogus:alias", "busybox", "true")
|
|
|
|
// an invalid container target should produce an error
|
|
assert.Assert(c, err != nil, "out: %s", out)
|
|
// an invalid container target should produce an error
|
|
// note: convert the output to lowercase first as the error string
|
|
// capitalization was changed after API version 1.32
|
|
assert.Assert(c, strings.Contains(strings.ToLower(out), "could not get container"))
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinksPingLinkedContainers(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
// Test with the three different ways of specifying the default network on Linux
|
|
testLinkPingOnNetwork(c, "")
|
|
testLinkPingOnNetwork(c, "default")
|
|
testLinkPingOnNetwork(c, "bridge")
|
|
}
|
|
|
|
func testLinkPingOnNetwork(c *testing.T, network string) {
|
|
var postArgs []string
|
|
if network != "" {
|
|
postArgs = append(postArgs, []string{"--net", network}...)
|
|
}
|
|
postArgs = append(postArgs, []string{"busybox", "top"}...)
|
|
runArgs1 := append([]string{"run", "-d", "--name", "container1", "--hostname", "fred"}, postArgs...)
|
|
runArgs2 := append([]string{"run", "-d", "--name", "container2", "--hostname", "wilma"}, postArgs...)
|
|
|
|
// Run the two named containers
|
|
dockerCmd(c, runArgs1...)
|
|
dockerCmd(c, runArgs2...)
|
|
|
|
postArgs = []string{}
|
|
if network != "" {
|
|
postArgs = append(postArgs, []string{"--net", network}...)
|
|
}
|
|
postArgs = append(postArgs, []string{"busybox", "sh", "-c"}...)
|
|
|
|
// Format a run for a container which links to the other two
|
|
runArgs := append([]string{"run", "--rm", "--link", "container1:alias1", "--link", "container2:alias2"}, postArgs...)
|
|
pingCmd := "ping -c 1 %s -W 1 && ping -c 1 %s -W 1"
|
|
|
|
// test ping by alias, ping by name, and ping by hostname
|
|
// 1. Ping by alias
|
|
dockerCmd(c, append(runArgs, fmt.Sprintf(pingCmd, "alias1", "alias2"))...)
|
|
// 2. Ping by container name
|
|
dockerCmd(c, append(runArgs, fmt.Sprintf(pingCmd, "container1", "container2"))...)
|
|
// 3. Ping by hostname
|
|
dockerCmd(c, append(runArgs, fmt.Sprintf(pingCmd, "fred", "wilma"))...)
|
|
|
|
// Clean for next round
|
|
dockerCmd(c, "rm", "-f", "container1")
|
|
dockerCmd(c, "rm", "-f", "container2")
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinksPingLinkedContainersAfterRename(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
out, _ := dockerCmd(c, "run", "-d", "--name", "container1", "busybox", "top")
|
|
idA := strings.TrimSpace(out)
|
|
out, _ = dockerCmd(c, "run", "-d", "--name", "container2", "busybox", "top")
|
|
idB := strings.TrimSpace(out)
|
|
dockerCmd(c, "rename", "container1", "container_new")
|
|
dockerCmd(c, "run", "--rm", "--link", "container_new:alias1", "--link", "container2:alias2", "busybox", "sh", "-c", "ping -c 1 alias1 -W 1 && ping -c 1 alias2 -W 1")
|
|
dockerCmd(c, "kill", idA)
|
|
dockerCmd(c, "kill", idB)
|
|
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinksInspectLinksStarted(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
dockerCmd(c, "run", "-d", "--name", "container1", "busybox", "top")
|
|
dockerCmd(c, "run", "-d", "--name", "container2", "busybox", "top")
|
|
dockerCmd(c, "run", "-d", "--name", "testinspectlink", "--link", "container1:alias1", "--link", "container2:alias2", "busybox", "top")
|
|
links := inspectFieldJSON(c, "testinspectlink", "HostConfig.Links")
|
|
|
|
var result []string
|
|
err := json.Unmarshal([]byte(links), &result)
|
|
assert.NilError(c, err)
|
|
|
|
var expected = []string{
|
|
"/container1:/testinspectlink/alias1",
|
|
"/container2:/testinspectlink/alias2",
|
|
}
|
|
sort.Strings(result)
|
|
assert.DeepEqual(c, result, expected)
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinksInspectLinksStopped(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
|
|
dockerCmd(c, "run", "-d", "--name", "container1", "busybox", "top")
|
|
dockerCmd(c, "run", "-d", "--name", "container2", "busybox", "top")
|
|
dockerCmd(c, "run", "-d", "--name", "testinspectlink", "--link", "container1:alias1", "--link", "container2:alias2", "busybox", "true")
|
|
links := inspectFieldJSON(c, "testinspectlink", "HostConfig.Links")
|
|
|
|
var result []string
|
|
err := json.Unmarshal([]byte(links), &result)
|
|
assert.NilError(c, err)
|
|
|
|
var expected = []string{
|
|
"/container1:/testinspectlink/alias1",
|
|
"/container2:/testinspectlink/alias2",
|
|
}
|
|
sort.Strings(result)
|
|
assert.DeepEqual(c, result, expected)
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinksNotStartedParentNotFail(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
dockerCmd(c, "create", "--name=first", "busybox", "top")
|
|
dockerCmd(c, "create", "--name=second", "--link=first:first", "busybox", "top")
|
|
dockerCmd(c, "start", "first")
|
|
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinksHostsFilesInject(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
testRequires(c, testEnv.IsLocalDaemon)
|
|
|
|
out, _ := dockerCmd(c, "run", "-itd", "--name", "one", "busybox", "top")
|
|
idOne := strings.TrimSpace(out)
|
|
|
|
out, _ = dockerCmd(c, "run", "-itd", "--name", "two", "--link", "one:onetwo", "busybox", "top")
|
|
idTwo := strings.TrimSpace(out)
|
|
|
|
assert.Assert(c, waitRun(idTwo) == nil)
|
|
|
|
readContainerFileWithExec(c, idOne, "/etc/hosts")
|
|
contentTwo := readContainerFileWithExec(c, idTwo, "/etc/hosts")
|
|
// Host is not present in updated hosts file
|
|
assert.Assert(c, strings.Contains(string(contentTwo), "onetwo"))
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinksUpdateOnRestart(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
testRequires(c, testEnv.IsLocalDaemon)
|
|
dockerCmd(c, "run", "-d", "--name", "one", "busybox", "top")
|
|
out, _ := dockerCmd(c, "run", "-d", "--name", "two", "--link", "one:onetwo", "--link", "one:one", "busybox", "top")
|
|
id := strings.TrimSpace(out)
|
|
|
|
realIP := inspectField(c, "one", "NetworkSettings.Networks.bridge.IPAddress")
|
|
content := readContainerFileWithExec(c, id, "/etc/hosts")
|
|
|
|
getIP := func(hosts []byte, hostname string) string {
|
|
re := regexp.MustCompile(fmt.Sprintf(`(\S*)\t%s`, regexp.QuoteMeta(hostname)))
|
|
matches := re.FindSubmatch(hosts)
|
|
assert.Assert(c, matches != nil, "Hostname %s have no matches in hosts", hostname)
|
|
return string(matches[1])
|
|
}
|
|
ip := getIP(content, "one")
|
|
assert.Equal(c, ip, realIP)
|
|
|
|
ip = getIP(content, "onetwo")
|
|
assert.Equal(c, ip, realIP)
|
|
|
|
dockerCmd(c, "restart", "one")
|
|
realIP = inspectField(c, "one", "NetworkSettings.Networks.bridge.IPAddress")
|
|
|
|
content = readContainerFileWithExec(c, id, "/etc/hosts")
|
|
ip = getIP(content, "one")
|
|
assert.Equal(c, ip, realIP)
|
|
|
|
ip = getIP(content, "onetwo")
|
|
assert.Equal(c, ip, realIP)
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinksEnvs(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
dockerCmd(c, "run", "-d", "-e", "e1=", "-e", "e2=v2", "-e", "e3=v3=v3", "--name=first", "busybox", "top")
|
|
out, _ := dockerCmd(c, "run", "--name=second", "--link=first:first", "busybox", "env")
|
|
assert.Assert(c, strings.Contains(out, "FIRST_ENV_e1=\n"))
|
|
assert.Assert(c, strings.Contains(out, "FIRST_ENV_e2=v2"))
|
|
assert.Assert(c, strings.Contains(out, "FIRST_ENV_e3=v3=v3"))
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinkShortDefinition(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
out, _ := dockerCmd(c, "run", "-d", "--name", "shortlinkdef", "busybox", "top")
|
|
|
|
cid := strings.TrimSpace(out)
|
|
assert.Assert(c, waitRun(cid) == nil)
|
|
|
|
out, _ = dockerCmd(c, "run", "-d", "--name", "link2", "--link", "shortlinkdef", "busybox", "top")
|
|
|
|
cid2 := strings.TrimSpace(out)
|
|
assert.Assert(c, waitRun(cid2) == nil)
|
|
|
|
links := inspectFieldJSON(c, cid2, "HostConfig.Links")
|
|
assert.Equal(c, links, "[\"/shortlinkdef:/link2/shortlinkdef\"]")
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinksNetworkHostContainer(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux, NotUserNamespace)
|
|
dockerCmd(c, "run", "-d", "--net", "host", "--name", "host_container", "busybox", "top")
|
|
out, _, err := dockerCmdWithError("run", "--name", "should_fail", "--link", "host_container:tester", "busybox", "true")
|
|
|
|
// Running container linking to a container with --net host should have failed
|
|
assert.Assert(c, err != nil, "out: %s", out)
|
|
// Running container linking to a container with --net host should have failed
|
|
assert.Assert(c, strings.Contains(out, runconfig.ErrConflictHostNetworkAndLinks.Error()))
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinksEtcHostsRegularFile(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux, NotUserNamespace)
|
|
out, _ := dockerCmd(c, "run", "--net=host", "busybox", "ls", "-la", "/etc/hosts")
|
|
// /etc/hosts should be a regular file
|
|
assert.Assert(c, cmp.Regexp("^-.+\n$", out))
|
|
}
|
|
|
|
func (s *DockerSuite) TestLinksMultipleWithSameName(c *testing.T) {
|
|
testRequires(c, DaemonIsLinux)
|
|
dockerCmd(c, "run", "-d", "--name=upstream-a", "busybox", "top")
|
|
dockerCmd(c, "run", "-d", "--name=upstream-b", "busybox", "top")
|
|
dockerCmd(c, "run", "--link", "upstream-a:upstream", "--link", "upstream-b:upstream", "busybox", "sh", "-c", "ping -c 1 upstream")
|
|
}
|