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package main
import (
"fmt"
"strings"
"time"
"github.com/docker/docker/pkg/integration/checker"
"gopkg.in/check.v1"
)
// Regression test for https://github.com/docker/docker/issues/7843
func (s *DockerSuite) TestStartAttachReturnsOnError(c *check.C) {
// Windows does not support link
testRequires(c, DaemonIsLinux)
dockerCmd(c, "run", "--name", "test", "busybox")
// Expect this to fail because the above container is stopped, this is what we want
out, _, err := dockerCmdWithError("run", "--name", "test2", "--link", "test:test", "busybox")
// err shouldn't be nil because container test2 try to link to stopped container
c.Assert(err, checker.NotNil, check.Commentf("out: %s", out))
ch := make(chan error)
go func() {
// Attempt to start attached to the container that won't start
// This should return an error immediately since the container can't be started
if _, _, err := dockerCmdWithError("start", "-a", "test2"); err == nil {
ch <- fmt.Errorf("Expected error but got none")
}
close(ch)
}()
select {
case err := <-ch:
c.Assert(err, check.IsNil)
case <-time.After(5 * time.Second):
c.Fatalf("Attach did not exit properly")
}
}
// gh#8555: Exit code should be passed through when using start -a
func (s *DockerSuite) TestStartAttachCorrectExitCode(c *check.C) {
testRequires(c, DaemonIsLinux)
out, _, _ := dockerCmdWithStdoutStderr(c, "run", "-d", "busybox", "sh", "-c", "sleep 2; exit 1")
out = strings.TrimSpace(out)
// make sure the container has exited before trying the "start -a"
dockerCmd(c, "wait", out)
startOut, exitCode, err := dockerCmdWithError("start", "-a", out)
// start command should fail
c.Assert(err, checker.NotNil, check.Commentf("startOut: %s", startOut))
// start -a did not respond with proper exit code
c.Assert(exitCode, checker.Equals, 1, check.Commentf("startOut: %s", startOut))
}
func (s *DockerSuite) TestStartAttachSilent(c *check.C) {
name := "teststartattachcorrectexitcode"
dockerCmd(c, "run", "--name", name, "busybox", "echo", "test")
// make sure the container has exited before trying the "start -a"
dockerCmd(c, "wait", name)
startOut, _ := dockerCmd(c, "start", "-a", name)
// start -a produced unexpected output
c.Assert(startOut, checker.Equals, "test\n")
}
func (s *DockerSuite) TestStartRecordError(c *check.C) {
// TODO Windows CI: Requires further porting work. Should be possible.
testRequires(c, DaemonIsLinux)
// when container runs successfully, we should not have state.Error
dockerCmd(c, "run", "-d", "-p", "9999:9999", "--name", "test", "busybox", "top")
stateErr := inspectField(c, "test", "State.Error")
// Expected to not have state error
c.Assert(stateErr, checker.Equals, "")
// Expect this to fail and records error because of ports conflict
out, _, err := dockerCmdWithError("run", "-d", "--name", "test2", "-p", "9999:9999", "busybox", "top")
// err shouldn't be nil because docker run will fail
c.Assert(err, checker.NotNil, check.Commentf("out: %s", out))
stateErr = inspectField(c, "test2", "State.Error")
c.Assert(stateErr, checker.Contains, "port is already allocated")
// Expect the conflict to be resolved when we stop the initial container
dockerCmd(c, "stop", "test")
dockerCmd(c, "start", "test2")
stateErr = inspectField(c, "test2", "State.Error")
// Expected to not have state error but got one
c.Assert(stateErr, checker.Equals, "")
}
func (s *DockerSuite) TestStartPausedContainer(c *check.C) {
// Windows does not support pausing containers
testRequires(c, DaemonIsLinux)
defer unpauseAllContainers()
dockerCmd(c, "run", "-d", "--name", "testing", "busybox", "top")
dockerCmd(c, "pause", "testing")
out, _, err := dockerCmdWithError("start", "testing")
// an error should have been shown that you cannot start paused container
c.Assert(err, checker.NotNil, check.Commentf("out: %s", out))
// an error should have been shown that you cannot start paused container
c.Assert(out, checker.Contains, "Cannot start a paused container, try unpause instead.")
}
func (s *DockerSuite) TestStartMultipleContainers(c *check.C) {
// Windows does not support --link
testRequires(c, DaemonIsLinux)
// run a container named 'parent' and create two container link to `parent`
dockerCmd(c, "run", "-d", "--name", "parent", "busybox", "top")
for _, container := range []string{"child_first", "child_second"} {
dockerCmd(c, "create", "--name", container, "--link", "parent:parent", "busybox", "top")
}
// stop 'parent' container
dockerCmd(c, "stop", "parent")
out := inspectField(c, "parent", "State.Running")
// Container should be stopped
c.Assert(out, checker.Equals, "false")
// start all the three containers, container `child_first` start first which should be failed
// container 'parent' start second and then start container 'child_second'
expOut := "Cannot link to a non running container"
expErr := "failed to start containers: [child_first]"
out, _, err := dockerCmdWithError("start", "child_first", "parent", "child_second")
// err shouldn't be nil because start will fail
c.Assert(err, checker.NotNil, check.Commentf("out: %s", out))
// output does not correspond to what was expected
if !(strings.Contains(out, expOut) || strings.Contains(err.Error(), expErr)) {
c.Fatalf("Expected out: %v with err: %v but got out: %v with err: %v", expOut, expErr, out, err)
}
for container, expected := range map[string]string{"parent": "true", "child_first": "false", "child_second": "true"} {
out := inspectField(c, container, "State.Running")
// Container running state wrong
c.Assert(out, checker.Equals, expected)
}
}
func (s *DockerSuite) TestStartAttachMultipleContainers(c *check.C) {
// run multiple containers to test
for _, container := range []string{"test1", "test2", "test3"} {
runSleepingContainer(c, "--name", container)
}
// stop all the containers
for _, container := range []string{"test1", "test2", "test3"} {
dockerCmd(c, "stop", container)
}
// test start and attach multiple containers at once, expected error
for _, option := range []string{"-a", "-i", "-ai"} {
out, _, err := dockerCmdWithError("start", option, "test1", "test2", "test3")
// err shouldn't be nil because start will fail
c.Assert(err, checker.NotNil, check.Commentf("out: %s", out))
// output does not correspond to what was expected
c.Assert(out, checker.Contains, "You cannot start and attach multiple containers at once.")
}
// confirm the state of all the containers be stopped
for container, expected := range map[string]string{"test1": "false", "test2": "false", "test3": "false"} {
out := inspectField(c, container, "State.Running")
// Container running state wrong
c.Assert(out, checker.Equals, expected)
}
}
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