c8d3ee8093
This fix tries to address the issue raised in #23498 to allow unset `--entrypoint` in `docker run` or `docker create`. This fix checks the flag `--entrypoint` and, in case `--entrypoint=` (`""`) is passed, unset the Entrypoint during the container run. Additional integration tests have been created to cover changes in this fix. This fix fixes #23498. Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
508 lines
17 KiB
Go
508 lines
17 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"os"
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"reflect"
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"strings"
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"time"
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"os/exec"
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"io/ioutil"
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"github.com/docker/docker/pkg/integration/checker"
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"github.com/docker/docker/pkg/stringid"
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"github.com/docker/go-connections/nat"
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"github.com/go-check/check"
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)
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// Make sure we can create a simple container with some args
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func (s *DockerSuite) TestCreateArgs(c *check.C) {
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// TODO Windows. This requires further investigation for porting to
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// Windows CI. Currently fails.
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if daemonPlatform == "windows" {
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c.Skip("Fails on Windows CI")
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}
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out, _ := dockerCmd(c, "create", "busybox", "command", "arg1", "arg2", "arg with space", "-c", "flags")
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cleanedContainerID := strings.TrimSpace(out)
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out, _ = dockerCmd(c, "inspect", cleanedContainerID)
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containers := []struct {
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ID string
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Created time.Time
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Path string
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Args []string
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Image string
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}{}
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err := json.Unmarshal([]byte(out), &containers)
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c.Assert(err, check.IsNil, check.Commentf("Error inspecting the container: %s", err))
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c.Assert(containers, checker.HasLen, 1)
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cont := containers[0]
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c.Assert(string(cont.Path), checker.Equals, "command", check.Commentf("Unexpected container path. Expected command, received: %s", cont.Path))
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b := false
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expected := []string{"arg1", "arg2", "arg with space", "-c", "flags"}
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for i, arg := range expected {
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if arg != cont.Args[i] {
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b = true
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break
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}
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}
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if len(cont.Args) != len(expected) || b {
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c.Fatalf("Unexpected args. Expected %v, received: %v", expected, cont.Args)
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}
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}
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// Make sure we can grow the container's rootfs at creation time.
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func (s *DockerSuite) TestCreateGrowRootfs(c *check.C) {
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testRequires(c, Devicemapper)
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out, _ := dockerCmd(c, "create", "--storage-opt", "size=120G", "busybox")
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cleanedContainerID := strings.TrimSpace(out)
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inspectOut := inspectField(c, cleanedContainerID, "HostConfig.StorageOpt")
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c.Assert(inspectOut, checker.Equals, "map[size:120G]")
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}
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// Make sure we cannot shrink the container's rootfs at creation time.
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func (s *DockerSuite) TestCreateShrinkRootfs(c *check.C) {
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testRequires(c, Devicemapper)
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// Ensure this fails because of the defaultBaseFsSize is 10G
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out, _, err := dockerCmdWithError("create", "--storage-opt", "size=5G", "busybox")
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c.Assert(err, check.NotNil, check.Commentf(out))
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c.Assert(out, checker.Contains, "Container size cannot be smaller than")
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}
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// Make sure we can set hostconfig options too
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func (s *DockerSuite) TestCreateHostConfig(c *check.C) {
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out, _ := dockerCmd(c, "create", "-P", "busybox", "echo")
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cleanedContainerID := strings.TrimSpace(out)
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out, _ = dockerCmd(c, "inspect", cleanedContainerID)
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containers := []struct {
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HostConfig *struct {
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PublishAllPorts bool
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}
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}{}
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err := json.Unmarshal([]byte(out), &containers)
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c.Assert(err, check.IsNil, check.Commentf("Error inspecting the container: %s", err))
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c.Assert(containers, checker.HasLen, 1)
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cont := containers[0]
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c.Assert(cont.HostConfig, check.NotNil, check.Commentf("Expected HostConfig, got none"))
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c.Assert(cont.HostConfig.PublishAllPorts, check.NotNil, check.Commentf("Expected PublishAllPorts, got false"))
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}
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func (s *DockerSuite) TestCreateWithPortRange(c *check.C) {
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// Windows does not currently support port ranges.
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testRequires(c, DaemonIsLinux)
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out, _ := dockerCmd(c, "create", "-p", "3300-3303:3300-3303/tcp", "busybox", "echo")
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cleanedContainerID := strings.TrimSpace(out)
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out, _ = dockerCmd(c, "inspect", cleanedContainerID)
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containers := []struct {
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HostConfig *struct {
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PortBindings map[nat.Port][]nat.PortBinding
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}
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}{}
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err := json.Unmarshal([]byte(out), &containers)
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c.Assert(err, check.IsNil, check.Commentf("Error inspecting the container: %s", err))
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c.Assert(containers, checker.HasLen, 1)
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cont := containers[0]
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c.Assert(cont.HostConfig, check.NotNil, check.Commentf("Expected HostConfig, got none"))
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c.Assert(cont.HostConfig.PortBindings, checker.HasLen, 4, check.Commentf("Expected 4 ports bindings, got %d", len(cont.HostConfig.PortBindings)))
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for k, v := range cont.HostConfig.PortBindings {
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c.Assert(v, checker.HasLen, 1, check.Commentf("Expected 1 ports binding, for the port %s but found %s", k, v))
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c.Assert(k.Port(), checker.Equals, v[0].HostPort, check.Commentf("Expected host port %s to match published port %s", k.Port(), v[0].HostPort))
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}
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}
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func (s *DockerSuite) TestCreateWithLargePortRange(c *check.C) {
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// Windows does not currently support port ranges.
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testRequires(c, DaemonIsLinux)
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out, _ := dockerCmd(c, "create", "-p", "1-65535:1-65535/tcp", "busybox", "echo")
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cleanedContainerID := strings.TrimSpace(out)
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out, _ = dockerCmd(c, "inspect", cleanedContainerID)
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containers := []struct {
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HostConfig *struct {
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PortBindings map[nat.Port][]nat.PortBinding
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}
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}{}
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err := json.Unmarshal([]byte(out), &containers)
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c.Assert(err, check.IsNil, check.Commentf("Error inspecting the container: %s", err))
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c.Assert(containers, checker.HasLen, 1)
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cont := containers[0]
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c.Assert(cont.HostConfig, check.NotNil, check.Commentf("Expected HostConfig, got none"))
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c.Assert(cont.HostConfig.PortBindings, checker.HasLen, 65535)
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for k, v := range cont.HostConfig.PortBindings {
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c.Assert(v, checker.HasLen, 1)
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c.Assert(k.Port(), checker.Equals, v[0].HostPort, check.Commentf("Expected host port %s to match published port %s", k.Port(), v[0].HostPort))
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}
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}
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// "test123" should be printed by docker create + start
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func (s *DockerSuite) TestCreateEchoStdout(c *check.C) {
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out, _ := dockerCmd(c, "create", "busybox", "echo", "test123")
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cleanedContainerID := strings.TrimSpace(out)
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out, _ = dockerCmd(c, "start", "-ai", cleanedContainerID)
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c.Assert(out, checker.Equals, "test123\n", check.Commentf("container should've printed 'test123', got %q", out))
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}
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func (s *DockerSuite) TestCreateVolumesCreated(c *check.C) {
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testRequires(c, SameHostDaemon)
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prefix := "/"
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if daemonPlatform == "windows" {
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prefix = `c:\`
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}
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name := "test_create_volume"
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dockerCmd(c, "create", "--name", name, "-v", prefix+"foo", "busybox")
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dir, err := inspectMountSourceField(name, prefix+"foo")
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c.Assert(err, check.IsNil, check.Commentf("Error getting volume host path: %q", err))
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if _, err := os.Stat(dir); err != nil && os.IsNotExist(err) {
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c.Fatalf("Volume was not created")
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}
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if err != nil {
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c.Fatalf("Error statting volume host path: %q", err)
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}
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}
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func (s *DockerSuite) TestCreateLabels(c *check.C) {
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name := "test_create_labels"
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expected := map[string]string{"k1": "v1", "k2": "v2"}
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dockerCmd(c, "create", "--name", name, "-l", "k1=v1", "--label", "k2=v2", "busybox")
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actual := make(map[string]string)
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inspectFieldAndMarshall(c, name, "Config.Labels", &actual)
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if !reflect.DeepEqual(expected, actual) {
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c.Fatalf("Expected %s got %s", expected, actual)
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}
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}
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func (s *DockerSuite) TestCreateLabelFromImage(c *check.C) {
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imageName := "testcreatebuildlabel"
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_, err := buildImage(imageName,
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`FROM busybox
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LABEL k1=v1 k2=v2`,
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true)
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c.Assert(err, check.IsNil)
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name := "test_create_labels_from_image"
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expected := map[string]string{"k2": "x", "k3": "v3", "k1": "v1"}
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dockerCmd(c, "create", "--name", name, "-l", "k2=x", "--label", "k3=v3", imageName)
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actual := make(map[string]string)
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inspectFieldAndMarshall(c, name, "Config.Labels", &actual)
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if !reflect.DeepEqual(expected, actual) {
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c.Fatalf("Expected %s got %s", expected, actual)
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}
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}
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func (s *DockerSuite) TestCreateHostnameWithNumber(c *check.C) {
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// TODO Windows. Consider enabling this in TP5 timeframe if Windows support
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// is fully hooked up. The hostname is passed through, but only to the
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// environment variable "COMPUTERNAME". It is not hooked up to hostname.exe
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// or returned in ipconfig. Needs platform support in networking.
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testRequires(c, DaemonIsLinux)
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out, _ := dockerCmd(c, "run", "-h", "web.0", "busybox", "hostname")
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c.Assert(strings.TrimSpace(out), checker.Equals, "web.0", check.Commentf("hostname not set, expected `web.0`, got: %s", out))
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}
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func (s *DockerSuite) TestCreateRM(c *check.C) {
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// Test to make sure we can 'rm' a new container that is in
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// "Created" state, and has ever been run. Test "rm -f" too.
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// create a container
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out, _ := dockerCmd(c, "create", "busybox")
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cID := strings.TrimSpace(out)
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dockerCmd(c, "rm", cID)
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// Now do it again so we can "rm -f" this time
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out, _ = dockerCmd(c, "create", "busybox")
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cID = strings.TrimSpace(out)
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dockerCmd(c, "rm", "-f", cID)
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}
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func (s *DockerSuite) TestCreateModeIpcContainer(c *check.C) {
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// Uses Linux specific functionality (--ipc)
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testRequires(c, DaemonIsLinux, SameHostDaemon)
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out, _ := dockerCmd(c, "create", "busybox")
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id := strings.TrimSpace(out)
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dockerCmd(c, "create", fmt.Sprintf("--ipc=container:%s", id), "busybox")
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}
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func (s *DockerSuite) TestCreateByImageID(c *check.C) {
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imageName := "testcreatebyimageid"
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imageID, err := buildImage(imageName,
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`FROM busybox
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MAINTAINER dockerio`,
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true)
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if err != nil {
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c.Fatal(err)
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}
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truncatedImageID := stringid.TruncateID(imageID)
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dockerCmd(c, "create", imageID)
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dockerCmd(c, "create", truncatedImageID)
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dockerCmd(c, "create", fmt.Sprintf("%s:%s", imageName, truncatedImageID))
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// Ensure this fails
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out, exit, _ := dockerCmdWithError("create", fmt.Sprintf("%s:%s", imageName, imageID))
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if exit == 0 {
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c.Fatalf("expected non-zero exit code; received %d", exit)
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}
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if expected := "Error parsing reference"; !strings.Contains(out, expected) {
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c.Fatalf(`Expected %q in output; got: %s`, expected, out)
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}
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out, exit, _ = dockerCmdWithError("create", fmt.Sprintf("%s:%s", "wrongimage", truncatedImageID))
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if exit == 0 {
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c.Fatalf("expected non-zero exit code; received %d", exit)
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}
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if expected := "Unable to find image"; !strings.Contains(out, expected) {
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c.Fatalf(`Expected %q in output; got: %s`, expected, out)
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}
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}
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func (s *DockerTrustSuite) TestTrustedCreate(c *check.C) {
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repoName := s.setupTrustedImage(c, "trusted-create")
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// Try create
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createCmd := exec.Command(dockerBinary, "create", repoName)
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s.trustedCmd(createCmd)
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out, _, err := runCommandWithOutput(createCmd)
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c.Assert(err, check.IsNil)
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c.Assert(string(out), checker.Contains, "Tagging", check.Commentf("Missing expected output on trusted push:\n%s", out))
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dockerCmd(c, "rmi", repoName)
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// Try untrusted create to ensure we pushed the tag to the registry
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createCmd = exec.Command(dockerBinary, "create", "--disable-content-trust=true", repoName)
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s.trustedCmd(createCmd)
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out, _, err = runCommandWithOutput(createCmd)
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c.Assert(err, check.IsNil)
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c.Assert(string(out), checker.Contains, "Status: Downloaded", check.Commentf("Missing expected output on trusted create with --disable-content-trust:\n%s", out))
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}
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func (s *DockerTrustSuite) TestUntrustedCreate(c *check.C) {
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repoName := fmt.Sprintf("%v/dockercliuntrusted/createtest", privateRegistryURL)
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withTagName := fmt.Sprintf("%s:latest", repoName)
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// tag the image and upload it to the private registry
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dockerCmd(c, "tag", "busybox", withTagName)
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dockerCmd(c, "push", withTagName)
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dockerCmd(c, "rmi", withTagName)
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// Try trusted create on untrusted tag
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createCmd := exec.Command(dockerBinary, "create", withTagName)
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s.trustedCmd(createCmd)
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out, _, err := runCommandWithOutput(createCmd)
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c.Assert(err, check.Not(check.IsNil))
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c.Assert(string(out), checker.Contains, fmt.Sprintf("does not have trust data for %s", repoName), check.Commentf("Missing expected output on trusted create:\n%s", out))
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}
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func (s *DockerTrustSuite) TestTrustedIsolatedCreate(c *check.C) {
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repoName := s.setupTrustedImage(c, "trusted-isolated-create")
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// Try create
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createCmd := exec.Command(dockerBinary, "--config", "/tmp/docker-isolated-create", "create", repoName)
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s.trustedCmd(createCmd)
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out, _, err := runCommandWithOutput(createCmd)
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c.Assert(err, check.IsNil)
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c.Assert(string(out), checker.Contains, "Tagging", check.Commentf("Missing expected output on trusted push:\n%s", out))
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dockerCmd(c, "rmi", repoName)
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}
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func (s *DockerTrustSuite) TestCreateWhenCertExpired(c *check.C) {
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c.Skip("Currently changes system time, causing instability")
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repoName := s.setupTrustedImage(c, "trusted-create-expired")
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// Certificates have 10 years of expiration
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elevenYearsFromNow := time.Now().Add(time.Hour * 24 * 365 * 11)
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runAtDifferentDate(elevenYearsFromNow, func() {
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// Try create
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createCmd := exec.Command(dockerBinary, "create", repoName)
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s.trustedCmd(createCmd)
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out, _, err := runCommandWithOutput(createCmd)
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c.Assert(err, check.Not(check.IsNil))
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c.Assert(string(out), checker.Contains, "could not validate the path to a trusted root", check.Commentf("Missing expected output on trusted create in the distant future:\n%s", out))
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})
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runAtDifferentDate(elevenYearsFromNow, func() {
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// Try create
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createCmd := exec.Command(dockerBinary, "create", "--disable-content-trust", repoName)
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s.trustedCmd(createCmd)
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out, _, err := runCommandWithOutput(createCmd)
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c.Assert(err, check.Not(check.IsNil))
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c.Assert(string(out), checker.Contains, "Status: Downloaded", check.Commentf("Missing expected output on trusted create in the distant future:\n%s", out))
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})
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}
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func (s *DockerTrustSuite) TestTrustedCreateFromBadTrustServer(c *check.C) {
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repoName := fmt.Sprintf("%v/dockerclievilcreate/trusted:latest", privateRegistryURL)
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evilLocalConfigDir, err := ioutil.TempDir("", "evilcreate-local-config-dir")
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c.Assert(err, check.IsNil)
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// tag the image and upload it to the private registry
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dockerCmd(c, "tag", "busybox", repoName)
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pushCmd := exec.Command(dockerBinary, "push", repoName)
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s.trustedCmd(pushCmd)
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out, _, err := runCommandWithOutput(pushCmd)
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c.Assert(err, check.IsNil)
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c.Assert(string(out), checker.Contains, "Signing and pushing trust metadata", check.Commentf("Missing expected output on trusted push:\n%s", out))
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dockerCmd(c, "rmi", repoName)
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// Try create
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createCmd := exec.Command(dockerBinary, "create", repoName)
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s.trustedCmd(createCmd)
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out, _, err = runCommandWithOutput(createCmd)
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c.Assert(err, check.IsNil)
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c.Assert(string(out), checker.Contains, "Tagging", check.Commentf("Missing expected output on trusted push:\n%s", out))
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dockerCmd(c, "rmi", repoName)
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// Kill the notary server, start a new "evil" one.
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s.not.Close()
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s.not, err = newTestNotary(c)
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c.Assert(err, check.IsNil)
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// In order to make an evil server, lets re-init a client (with a different trust dir) and push new data.
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// tag an image and upload it to the private registry
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dockerCmd(c, "--config", evilLocalConfigDir, "tag", "busybox", repoName)
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// Push up to the new server
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pushCmd = exec.Command(dockerBinary, "--config", evilLocalConfigDir, "push", repoName)
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s.trustedCmd(pushCmd)
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out, _, err = runCommandWithOutput(pushCmd)
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c.Assert(err, check.IsNil)
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c.Assert(string(out), checker.Contains, "Signing and pushing trust metadata", check.Commentf("Missing expected output on trusted push:\n%s", out))
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// Now, try creating with the original client from this new trust server. This should fallback to our cached timestamp and metadata.
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createCmd = exec.Command(dockerBinary, "create", repoName)
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s.trustedCmd(createCmd)
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out, _, err = runCommandWithOutput(createCmd)
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if err != nil {
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c.Fatalf("Error falling back to cached trust data: %s\n%s", err, out)
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}
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if !strings.Contains(string(out), "Error while downloading remote metadata, using cached timestamp") {
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c.Fatalf("Missing expected output on trusted create:\n%s", out)
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}
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}
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func (s *DockerSuite) TestCreateStopSignal(c *check.C) {
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name := "test_create_stop_signal"
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dockerCmd(c, "create", "--name", name, "--stop-signal", "9", "busybox")
|
|
|
|
res := inspectFieldJSON(c, name, "Config.StopSignal")
|
|
c.Assert(res, checker.Contains, "9")
|
|
|
|
}
|
|
|
|
func (s *DockerSuite) TestCreateWithWorkdir(c *check.C) {
|
|
// TODO Windows. This requires further investigation for porting to
|
|
// Windows CI. Currently fails.
|
|
if daemonPlatform == "windows" {
|
|
c.Skip("Fails on Windows CI")
|
|
}
|
|
name := "foo"
|
|
|
|
prefix, slash := getPrefixAndSlashFromDaemonPlatform()
|
|
dir := prefix + slash + "home" + slash + "foo" + slash + "bar"
|
|
|
|
dockerCmd(c, "create", "--name", name, "-w", dir, "busybox")
|
|
dockerCmd(c, "cp", fmt.Sprintf("%s:%s", name, dir), prefix+slash+"tmp")
|
|
}
|
|
|
|
func (s *DockerSuite) TestCreateWithInvalidLogOpts(c *check.C) {
|
|
name := "test-invalidate-log-opts"
|
|
out, _, err := dockerCmdWithError("create", "--name", name, "--log-opt", "invalid=true", "busybox")
|
|
c.Assert(err, checker.NotNil)
|
|
c.Assert(out, checker.Contains, "unknown log opt")
|
|
|
|
out, _ = dockerCmd(c, "ps", "-a")
|
|
c.Assert(out, checker.Not(checker.Contains), name)
|
|
}
|
|
|
|
// #20972
|
|
func (s *DockerSuite) TestCreate64ByteHexID(c *check.C) {
|
|
out := inspectField(c, "busybox", "Id")
|
|
imageID := strings.TrimPrefix(strings.TrimSpace(string(out)), "sha256:")
|
|
|
|
dockerCmd(c, "create", imageID)
|
|
}
|
|
|
|
// Test case for #23498
|
|
func (s *DockerSuite) TestCreateUnsetEntrypoint(c *check.C) {
|
|
testRequires(c, DaemonIsLinux)
|
|
name := "test-entrypoint"
|
|
dockerfile := `FROM busybox
|
|
ADD entrypoint.sh /entrypoint.sh
|
|
RUN chmod 755 /entrypoint.sh
|
|
ENTRYPOINT ["/entrypoint.sh"]
|
|
CMD echo foobar`
|
|
|
|
ctx, err := fakeContext(dockerfile, map[string]string{
|
|
"entrypoint.sh": `#!/bin/sh
|
|
echo "I am an entrypoint"
|
|
exec "$@"`,
|
|
})
|
|
c.Assert(err, check.IsNil)
|
|
defer ctx.Close()
|
|
|
|
_, err = buildImageFromContext(name, ctx, true)
|
|
c.Assert(err, check.IsNil)
|
|
|
|
out, _ := dockerCmd(c, "create", "--entrypoint=", name, "echo", "foo")
|
|
id := strings.TrimSpace(out)
|
|
c.Assert(id, check.Not(check.Equals), "")
|
|
out, _ = dockerCmd(c, "start", "-a", id)
|
|
c.Assert(strings.TrimSpace(out), check.Equals, "foo")
|
|
}
|