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moby--moby/integration-cli/docker_cli_ps_test.go

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package main
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"sort"
"strconv"
"strings"
"time"
"github.com/docker/docker/pkg/integration/checker"
"github.com/docker/docker/pkg/stringid"
"github.com/go-check/check"
)
func (s *DockerSuite) TestPsListContainersBase(c *check.C) {
testRequires(c, DaemonIsLinux)
out, _ := dockerCmd(c, "run", "-d", "busybox", "top")
firstID := strings.TrimSpace(out)
out, _ = dockerCmd(c, "run", "-d", "busybox", "top")
secondID := strings.TrimSpace(out)
// not long running
out, _ = dockerCmd(c, "run", "-d", "busybox", "true")
thirdID := strings.TrimSpace(out)
out, _ = dockerCmd(c, "run", "-d", "busybox", "top")
fourthID := strings.TrimSpace(out)
// make sure the second is running
c.Assert(waitRun(secondID), checker.IsNil)
// make sure third one is not running
dockerCmd(c, "wait", thirdID)
// make sure the forth is running
c.Assert(waitRun(fourthID), checker.IsNil)
// all
out, _ = dockerCmd(c, "ps", "-a")
c.Assert(assertContainerList(out, []string{fourthID, thirdID, secondID, firstID}), checker.Equals, true, check.Commentf("ALL: Container list is not in the correct order: \n%s", out))
// running
out, _ = dockerCmd(c, "ps")
c.Assert(assertContainerList(out, []string{fourthID, secondID, firstID}), checker.Equals, true, check.Commentf("RUNNING: Container list is not in the correct order: \n%s", out))
// from here all flag '-a' is ignored
// limit
out, _ = dockerCmd(c, "ps", "-n=2", "-a")
expected := []string{fourthID, thirdID}
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("LIMIT & ALL: Container list is not in the correct order: \n%s", out))
out, _ = dockerCmd(c, "ps", "-n=2")
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("LIMIT: Container list is not in the correct order: \n%s", out))
// filter since
out, _ = dockerCmd(c, "ps", "-f", "since="+firstID, "-a")
expected = []string{fourthID, thirdID, secondID}
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("SINCE & ALL: Container list is not in the correct order: \n%s", out))
out, _ = dockerCmd(c, "ps", "-f", "since="+firstID)
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("SINCE: Container list is not in the correct order: \n%s", out))
// filter before
out, _ = dockerCmd(c, "ps", "-f", "before="+thirdID, "-a")
expected = []string{secondID, firstID}
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("BEFORE & ALL: Container list is not in the correct order: \n%s", out))
out, _ = dockerCmd(c, "ps", "-f", "before="+thirdID)
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("BEFORE: Container list is not in the correct order: \n%s", out))
// filter since & before
out, _ = dockerCmd(c, "ps", "-f", "since="+firstID, "-f", "before="+fourthID, "-a")
expected = []string{thirdID, secondID}
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("SINCE, BEFORE & ALL: Container list is not in the correct order: \n%s", out))
out, _ = dockerCmd(c, "ps", "-f", "since="+firstID, "-f", "before="+fourthID)
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("SINCE, BEFORE: Container list is not in the correct order: \n%s", out))
// filter since & limit
out, _ = dockerCmd(c, "ps", "-f", "since="+firstID, "-n=2", "-a")
expected = []string{fourthID, thirdID}
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("SINCE, LIMIT & ALL: Container list is not in the correct order: \n%s", out))
out, _ = dockerCmd(c, "ps", "-f", "since="+firstID, "-n=2")
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("SINCE, LIMIT: Container list is not in the correct order: \n%s", out))
// filter before & limit
out, _ = dockerCmd(c, "ps", "-f", "before="+fourthID, "-n=1", "-a")
expected = []string{thirdID}
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("BEFORE, LIMIT & ALL: Container list is not in the correct order: \n%s", out))
out, _ = dockerCmd(c, "ps", "-f", "before="+fourthID, "-n=1")
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("BEFORE, LIMIT: Container list is not in the correct order: \n%s", out))
// filter since & filter before & limit
out, _ = dockerCmd(c, "ps", "-f", "since="+firstID, "-f", "before="+fourthID, "-n=1", "-a")
expected = []string{thirdID}
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("SINCE, BEFORE, LIMIT & ALL: Container list is not in the correct order: \n%s", out))
out, _ = dockerCmd(c, "ps", "-f", "since="+firstID, "-f", "before="+fourthID, "-n=1")
c.Assert(assertContainerList(out, expected), checker.Equals, true, check.Commentf("SINCE, BEFORE, LIMIT: Container list is not in the correct order: \n%s", out))
}
func assertContainerList(out string, expected []string) bool {
lines := strings.Split(strings.Trim(out, "\n "), "\n")
if len(lines)-1 != len(expected) {
return false
}
containerIDIndex := strings.Index(lines[0], "CONTAINER ID")
for i := 0; i < len(expected); i++ {
foundID := lines[i+1][containerIDIndex : containerIDIndex+12]
if foundID != expected[i][:12] {
return false
}
}
return true
}
func (s *DockerSuite) TestPsListContainersSize(c *check.C) {
testRequires(c, DaemonIsLinux)
dockerCmd(c, "run", "-d", "busybox", "echo", "hello")
baseOut, _ := dockerCmd(c, "ps", "-s", "-n=1")
baseLines := strings.Split(strings.Trim(baseOut, "\n "), "\n")
baseSizeIndex := strings.Index(baseLines[0], "SIZE")
baseFoundsize := baseLines[1][baseSizeIndex:]
baseBytes, err := strconv.Atoi(strings.Split(baseFoundsize, " ")[0])
c.Assert(err, checker.IsNil)
name := "test_size"
out, _ := dockerCmd(c, "run", "--name", name, "busybox", "sh", "-c", "echo 1 > test")
id, err := getIDByName(name)
c.Assert(err, checker.IsNil)
runCmd := exec.Command(dockerBinary, "ps", "-s", "-n=1")
wait := make(chan struct{})
go func() {
out, _, err = runCommandWithOutput(runCmd)
close(wait)
}()
select {
case <-wait:
case <-time.After(3 * time.Second):
c.Fatalf("Calling \"docker ps -s\" timed out!")
}
c.Assert(err, checker.IsNil)
lines := strings.Split(strings.Trim(out, "\n "), "\n")
c.Assert(lines, checker.HasLen, 2, check.Commentf("Expected 2 lines for 'ps -s -n=1' output, got %d", len(lines)))
sizeIndex := strings.Index(lines[0], "SIZE")
idIndex := strings.Index(lines[0], "CONTAINER ID")
foundID := lines[1][idIndex : idIndex+12]
c.Assert(foundID, checker.Equals, id[:12], check.Commentf("Expected id %s, got %s", id[:12], foundID))
expectedSize := fmt.Sprintf("%d B", (2 + baseBytes))
foundSize := lines[1][sizeIndex:]
c.Assert(foundSize, checker.Contains, expectedSize, check.Commentf("Expected size %q, got %q", expectedSize, foundSize))
}
func (s *DockerSuite) TestPsListContainersFilterStatus(c *check.C) {
testRequires(c, DaemonIsLinux)
// start exited container
out, _ := dockerCmd(c, "run", "-d", "busybox")
firstID := strings.TrimSpace(out)
// make sure the exited container is not running
dockerCmd(c, "wait", firstID)
// start running container
out, _ = dockerCmd(c, "run", "-itd", "busybox")
secondID := strings.TrimSpace(out)
// filter containers by exited
out, _ = dockerCmd(c, "ps", "--no-trunc", "-q", "--filter=status=exited")
containerOut := strings.TrimSpace(out)
c.Assert(containerOut, checker.Equals, firstID)
out, _ = dockerCmd(c, "ps", "-a", "--no-trunc", "-q", "--filter=status=running")
containerOut = strings.TrimSpace(out)
c.Assert(containerOut, checker.Equals, secondID)
out, _, _ = dockerCmdWithTimeout(time.Second*60, "ps", "-a", "-q", "--filter=status=rubbish")
c.Assert(out, checker.Contains, "Unrecognised filter value for status", check.Commentf("Expected error response due to invalid status filter output: %q", out))
// pause running container
out, _ = dockerCmd(c, "run", "-itd", "busybox")
pausedID := strings.TrimSpace(out)
dockerCmd(c, "pause", pausedID)
// make sure the container is unpaused to let the daemon stop it properly
defer func() { dockerCmd(c, "unpause", pausedID) }()
out, _ = dockerCmd(c, "ps", "--no-trunc", "-q", "--filter=status=paused")
containerOut = strings.TrimSpace(out)
c.Assert(containerOut, checker.Equals, pausedID)
}
func (s *DockerSuite) TestPsListContainersFilterID(c *check.C) {
testRequires(c, DaemonIsLinux)
// start container
out, _ := dockerCmd(c, "run", "-d", "busybox")
firstID := strings.TrimSpace(out)
// start another container
dockerCmd(c, "run", "-d", "busybox", "top")
// filter containers by id
out, _ = dockerCmd(c, "ps", "-a", "-q", "--filter=id="+firstID)
containerOut := strings.TrimSpace(out)
c.Assert(containerOut, checker.Equals, firstID[:12], check.Commentf("Expected id %s, got %s for exited filter, output: %q", firstID[:12], containerOut, out))
}
func (s *DockerSuite) TestPsListContainersFilterName(c *check.C) {
testRequires(c, DaemonIsLinux)
// start container
out, _ := dockerCmd(c, "run", "-d", "--name=a_name_to_match", "busybox")
firstID := strings.TrimSpace(out)
// start another container
dockerCmd(c, "run", "-d", "--name=b_name_to_match", "busybox", "top")
// filter containers by name
out, _ = dockerCmd(c, "ps", "-a", "-q", "--filter=name=a_name_to_match")
containerOut := strings.TrimSpace(out)
c.Assert(containerOut, checker.Equals, firstID[:12], check.Commentf("Expected id %s, got %s for exited filter, output: %q", firstID[:12], containerOut, out))
}
// Test for the ancestor filter for ps.
// There is also the same test but with image:tag@digest in docker_cli_by_digest_test.go
//
// What the test setups :
// - Create 2 image based on busybox using the same repository but different tags
// - Create an image based on the previous image (images_ps_filter_test2)
// - Run containers for each of those image (busybox, images_ps_filter_test1, images_ps_filter_test2)
// - Filter them out :P
func (s *DockerSuite) TestPsListContainersFilterAncestorImage(c *check.C) {
testRequires(c, DaemonIsLinux)
// Build images
imageName1 := "images_ps_filter_test1"
imageID1, err := buildImage(imageName1,
`FROM busybox
LABEL match me 1`, true)
c.Assert(err, checker.IsNil)
imageName1Tagged := "images_ps_filter_test1:tag"
imageID1Tagged, err := buildImage(imageName1Tagged,
`FROM busybox
LABEL match me 1 tagged`, true)
c.Assert(err, checker.IsNil)
imageName2 := "images_ps_filter_test2"
imageID2, err := buildImage(imageName2,
fmt.Sprintf(`FROM %s
LABEL match me 2`, imageName1), true)
c.Assert(err, checker.IsNil)
// start containers
out, _ := dockerCmd(c, "run", "-d", "busybox", "echo", "hello")
firstID := strings.TrimSpace(out)
// start another container
out, _ = dockerCmd(c, "run", "-d", "busybox", "echo", "hello")
secondID := strings.TrimSpace(out)
// start third container
out, _ = dockerCmd(c, "run", "-d", imageName1, "echo", "hello")
thirdID := strings.TrimSpace(out)
// start fourth container
out, _ = dockerCmd(c, "run", "-d", imageName1Tagged, "echo", "hello")
fourthID := strings.TrimSpace(out)
// start fifth container
out, _ = dockerCmd(c, "run", "-d", imageName2, "echo", "hello")
fifthID := strings.TrimSpace(out)
var filterTestSuite = []struct {
filterName string
expectedIDs []string
}{
// non existent stuff
{"nonexistent", []string{}},
{"nonexistent:tag", []string{}},
// image
{"busybox", []string{firstID, secondID, thirdID, fourthID, fifthID}},
{imageName1, []string{thirdID, fifthID}},
{imageName2, []string{fifthID}},
// image:tag
{fmt.Sprintf("%s:latest", imageName1), []string{thirdID, fifthID}},
{imageName1Tagged, []string{fourthID}},
// short-id
{stringid.TruncateID(imageID1), []string{thirdID, fifthID}},
{stringid.TruncateID(imageID2), []string{fifthID}},
// full-id
{imageID1, []string{thirdID, fifthID}},
{imageID1Tagged, []string{fourthID}},
{imageID2, []string{fifthID}},
}
for _, filter := range filterTestSuite {
out, _ = dockerCmd(c, "ps", "-a", "-q", "--no-trunc", "--filter=ancestor="+filter.filterName)
checkPsAncestorFilterOutput(c, out, filter.filterName, filter.expectedIDs)
}
// Multiple ancestor filter
out, _ = dockerCmd(c, "ps", "-a", "-q", "--no-trunc", "--filter=ancestor="+imageName2, "--filter=ancestor="+imageName1Tagged)
checkPsAncestorFilterOutput(c, out, imageName2+","+imageName1Tagged, []string{fourthID, fifthID})
}
func checkPsAncestorFilterOutput(c *check.C, out string, filterName string, expectedIDs []string) {
actualIDs := []string{}
if out != "" {
actualIDs = strings.Split(out[:len(out)-1], "\n")
}
sort.Strings(actualIDs)
sort.Strings(expectedIDs)
c.Assert(actualIDs, checker.HasLen, len(expectedIDs), check.Commentf("Expected filtered container(s) for %s ancestor filter to be %v:%v, got %v:%v", filterName, len(expectedIDs), expectedIDs, len(actualIDs), actualIDs))
if len(expectedIDs) > 0 {
same := true
for i := range expectedIDs {
if actualIDs[i] != expectedIDs[i] {
c.Logf("%s, %s", actualIDs[i], expectedIDs[i])
same = false
break
}
}
c.Assert(same, checker.Equals, true, check.Commentf("Expected filtered container(s) for %s ancestor filter to be %v, got %v", filterName, expectedIDs, actualIDs))
}
}
func (s *DockerSuite) TestPsListContainersFilterLabel(c *check.C) {
testRequires(c, DaemonIsLinux)
// start container
out, _ := dockerCmd(c, "run", "-d", "-l", "match=me", "-l", "second=tag", "busybox")
firstID := strings.TrimSpace(out)
// start another container
out, _ = dockerCmd(c, "run", "-d", "-l", "match=me too", "busybox")
secondID := strings.TrimSpace(out)
// start third container
out, _ = dockerCmd(c, "run", "-d", "-l", "nomatch=me", "busybox")
thirdID := strings.TrimSpace(out)
// filter containers by exact match
out, _ = dockerCmd(c, "ps", "-a", "-q", "--no-trunc", "--filter=label=match=me")
containerOut := strings.TrimSpace(out)
c.Assert(containerOut, checker.Equals, firstID, check.Commentf("Expected id %s, got %s for exited filter, output: %q", firstID, containerOut, out))
// filter containers by two labels
out, _ = dockerCmd(c, "ps", "-a", "-q", "--no-trunc", "--filter=label=match=me", "--filter=label=second=tag")
containerOut = strings.TrimSpace(out)
c.Assert(containerOut, checker.Equals, firstID, check.Commentf("Expected id %s, got %s for exited filter, output: %q", firstID, containerOut, out))
// filter containers by two labels, but expect not found because of AND behavior
out, _ = dockerCmd(c, "ps", "-a", "-q", "--no-trunc", "--filter=label=match=me", "--filter=label=second=tag-no")
containerOut = strings.TrimSpace(out)
c.Assert(containerOut, checker.Equals, "", check.Commentf("Expected nothing, got %s for exited filter, output: %q", containerOut, out))
// filter containers by exact key
out, _ = dockerCmd(c, "ps", "-a", "-q", "--no-trunc", "--filter=label=match")
containerOut = strings.TrimSpace(out)
c.Assert(containerOut, checker.Contains, firstID)
c.Assert(containerOut, checker.Contains, secondID)
c.Assert(containerOut, checker.Not(checker.Contains), thirdID)
}
func (s *DockerSuite) TestPsListContainersFilterExited(c *check.C) {
testRequires(c, DaemonIsLinux)
dockerCmd(c, "run", "-d", "--name", "top", "busybox", "top")
dockerCmd(c, "run", "--name", "zero1", "busybox", "true")
firstZero, err := getIDByName("zero1")
c.Assert(err, checker.IsNil)
dockerCmd(c, "run", "--name", "zero2", "busybox", "true")
secondZero, err := getIDByName("zero2")
c.Assert(err, checker.IsNil)
out, _, err := dockerCmdWithError("run", "--name", "nonzero1", "busybox", "false")
c.Assert(err, checker.NotNil, check.Commentf("Should fail.", out, err))
firstNonZero, err := getIDByName("nonzero1")
c.Assert(err, checker.IsNil)
out, _, err = dockerCmdWithError("run", "--name", "nonzero2", "busybox", "false")
c.Assert(err, checker.NotNil, check.Commentf("Should fail.", out, err))
secondNonZero, err := getIDByName("nonzero2")
c.Assert(err, checker.IsNil)
// filter containers by exited=0
out, _ = dockerCmd(c, "ps", "-a", "-q", "--no-trunc", "--filter=exited=0")
ids := strings.Split(strings.TrimSpace(out), "\n")
c.Assert(ids, checker.HasLen, 2, check.Commentf("Should be 2 zero exited containers got %d: %s", len(ids), out))
c.Assert(ids[0], checker.Equals, secondZero, check.Commentf("First in list should be %q, got %q", secondZero, ids[0]))
c.Assert(ids[1], checker.Equals, firstZero, check.Commentf("Second in list should be %q, got %q", firstZero, ids[1]))
out, _ = dockerCmd(c, "ps", "-a", "-q", "--no-trunc", "--filter=exited=1")
ids = strings.Split(strings.TrimSpace(out), "\n")
c.Assert(ids, checker.HasLen, 2, check.Commentf("Should be 2 zero exited containers got %d", len(ids)))
c.Assert(ids[0], checker.Equals, secondNonZero, check.Commentf("First in list should be %q, got %q", secondNonZero, ids[0]))
c.Assert(ids[1], checker.Equals, firstNonZero, check.Commentf("Second in list should be %q, got %q", firstNonZero, ids[1]))
}
func (s *DockerSuite) TestPsRightTagName(c *check.C) {
testRequires(c, DaemonIsLinux)
tag := "asybox:shmatest"
dockerCmd(c, "tag", "busybox", tag)
var id1 string
out, _ := dockerCmd(c, "run", "-d", "busybox", "top")
id1 = strings.TrimSpace(string(out))
var id2 string
out, _ = dockerCmd(c, "run", "-d", tag, "top")
id2 = strings.TrimSpace(string(out))
var imageID string
out, _ = dockerCmd(c, "inspect", "-f", "{{.Id}}", "busybox")
imageID = strings.TrimSpace(string(out))
var id3 string
out, _ = dockerCmd(c, "run", "-d", imageID, "top")
id3 = strings.TrimSpace(string(out))
out, _ = dockerCmd(c, "ps", "--no-trunc")
lines := strings.Split(strings.TrimSpace(string(out)), "\n")
// skip header
lines = lines[1:]
c.Assert(lines, checker.HasLen, 3, check.Commentf("There should be 3 running container, got %d", len(lines)))
for _, line := range lines {
f := strings.Fields(line)
switch f[0] {
case id1:
c.Assert(f[1], checker.Equals, "busybox", check.Commentf("Expected %s tag for id %s, got %s", "busybox", id1, f[1]))
case id2:
c.Assert(f[1], checker.Equals, tag, check.Commentf("Expected %s tag for id %s, got %s", tag, id2, f[1]))
case id3:
c.Assert(f[1], checker.Equals, imageID, check.Commentf("Expected %s imageID for id %s, got %s", tag, id3, f[1]))
default:
c.Fatalf("Unexpected id %s, expected %s and %s and %s", f[0], id1, id2, id3)
}
}
}
func (s *DockerSuite) TestPsLinkedWithNoTrunc(c *check.C) {
testRequires(c, DaemonIsLinux)
dockerCmd(c, "run", "--name=first", "-d", "busybox", "top")
dockerCmd(c, "run", "--name=second", "--link=first:first", "-d", "busybox", "top")
out, _ := dockerCmd(c, "ps", "--no-trunc")
lines := strings.Split(strings.TrimSpace(string(out)), "\n")
// strip header
lines = lines[1:]
expected := []string{"second", "first,second/first"}
var names []string
for _, l := range lines {
fields := strings.Fields(l)
names = append(names, fields[len(fields)-1])
}
c.Assert(expected, checker.DeepEquals, names, check.Commentf("Expected array: %v, got: %v", expected, names))
}
func (s *DockerSuite) TestPsGroupPortRange(c *check.C) {
testRequires(c, DaemonIsLinux)
portRange := "3800-3900"
dockerCmd(c, "run", "-d", "--name", "porttest", "-p", portRange+":"+portRange, "busybox", "top")
out, _ := dockerCmd(c, "ps")
c.Assert(string(out), checker.Contains, portRange, check.Commentf("docker ps output should have had the port range %q: %s", portRange, string(out)))
}
func (s *DockerSuite) TestPsWithSize(c *check.C) {
testRequires(c, DaemonIsLinux)
dockerCmd(c, "run", "-d", "--name", "sizetest", "busybox", "top")
out, _ := dockerCmd(c, "ps", "--size")
c.Assert(out, checker.Contains, "virtual", check.Commentf("docker ps with --size should show virtual size of container"))
}
func (s *DockerSuite) TestPsListContainersFilterCreated(c *check.C) {
testRequires(c, DaemonIsLinux)
// create a container
out, _ := dockerCmd(c, "create", "busybox")
cID := strings.TrimSpace(out)
shortCID := cID[:12]
// Make sure it DOESN'T show up w/o a '-a' for normal 'ps'
out, _ = dockerCmd(c, "ps", "-q")
c.Assert(out, checker.Not(checker.Contains), shortCID, check.Commentf("Should have not seen '%s' in ps output:\n%s", shortCID, out))
// Make sure it DOES show up as 'Created' for 'ps -a'
out, _ = dockerCmd(c, "ps", "-a")
hits := 0
for _, line := range strings.Split(out, "\n") {
if !strings.Contains(line, shortCID) {
continue
}
hits++
c.Assert(line, checker.Contains, "Created", check.Commentf("Missing 'Created' on '%s'", line))
}
c.Assert(hits, checker.Equals, 1, check.Commentf("Should have seen '%s' in ps -a output once:%d\n%s", shortCID, hits, out))
// filter containers by 'create' - note, no -a needed
out, _ = dockerCmd(c, "ps", "-q", "-f", "status=created")
containerOut := strings.TrimSpace(out)
c.Assert(cID, checker.HasPrefix, containerOut)
}
func (s *DockerSuite) TestPsFormatMultiNames(c *check.C) {
testRequires(c, DaemonIsLinux)
//create 2 containers and link them
dockerCmd(c, "run", "--name=child", "-d", "busybox", "top")
dockerCmd(c, "run", "--name=parent", "--link=child:linkedone", "-d", "busybox", "top")
//use the new format capabilities to only list the names and --no-trunc to get all names
out, _ := dockerCmd(c, "ps", "--format", "{{.Names}}", "--no-trunc")
lines := strings.Split(strings.TrimSpace(string(out)), "\n")
expected := []string{"parent", "child,parent/linkedone"}
var names []string
for _, l := range lines {
names = append(names, l)
}
c.Assert(expected, checker.DeepEquals, names, check.Commentf("Expected array with non-truncated names: %v, got: %v", expected, names))
//now list without turning off truncation and make sure we only get the non-link names
out, _ = dockerCmd(c, "ps", "--format", "{{.Names}}")
lines = strings.Split(strings.TrimSpace(string(out)), "\n")
expected = []string{"parent", "child"}
var truncNames []string
for _, l := range lines {
truncNames = append(truncNames, l)
}
c.Assert(expected, checker.DeepEquals, truncNames, check.Commentf("Expected array with truncated names: %v, got: %v", expected, truncNames))
}
func (s *DockerSuite) TestPsFormatHeaders(c *check.C) {
testRequires(c, DaemonIsLinux)
// make sure no-container "docker ps" still prints the header row
out, _ := dockerCmd(c, "ps", "--format", "table {{.ID}}")
c.Assert(out, checker.Equals, "CONTAINER ID\n", check.Commentf(`Expected 'CONTAINER ID\n', got %v`, out))
// verify that "docker ps" with a container still prints the header row also
dockerCmd(c, "run", "--name=test", "-d", "busybox", "top")
out, _ = dockerCmd(c, "ps", "--format", "table {{.Names}}")
c.Assert(out, checker.Equals, "NAMES\ntest\n", check.Commentf(`Expected 'NAMES\ntest\n', got %v`, out))
}
func (s *DockerSuite) TestPsDefaultFormatAndQuiet(c *check.C) {
testRequires(c, DaemonIsLinux)
config := `{
"psFormat": "default {{ .ID }}"
}`
d, err := ioutil.TempDir("", "integration-cli-")
c.Assert(err, checker.IsNil)
defer os.RemoveAll(d)
err = ioutil.WriteFile(filepath.Join(d, "config.json"), []byte(config), 0644)
c.Assert(err, checker.IsNil)
out, _ := dockerCmd(c, "run", "--name=test", "-d", "busybox", "top")
id := strings.TrimSpace(out)
out, _ = dockerCmd(c, "--config", d, "ps", "-q")
c.Assert(id, checker.HasPrefix, strings.TrimSpace(out), check.Commentf("Expected to print only the container id, got %v\n", out))
}
// Test for GitHub issue #12595
func (s *DockerSuite) TestPsImageIDAfterUpdate(c *check.C) {
testRequires(c, DaemonIsLinux)
originalImageName := "busybox:TestPsImageIDAfterUpdate-original"
updatedImageName := "busybox:TestPsImageIDAfterUpdate-updated"
runCmd := exec.Command(dockerBinary, "tag", "busybox:latest", originalImageName)
out, _, err := runCommandWithOutput(runCmd)
c.Assert(err, checker.IsNil)
originalImageID, err := getIDByName(originalImageName)
c.Assert(err, checker.IsNil)
runCmd = exec.Command(dockerBinary, "run", "-d", originalImageName, "top")
out, _, err = runCommandWithOutput(runCmd)
c.Assert(err, checker.IsNil)
containerID := strings.TrimSpace(out)
linesOut, err := exec.Command(dockerBinary, "ps", "--no-trunc").CombinedOutput()
c.Assert(err, checker.IsNil)
lines := strings.Split(strings.TrimSpace(string(linesOut)), "\n")
// skip header
lines = lines[1:]
c.Assert(len(lines), checker.Equals, 1)
for _, line := range lines {
f := strings.Fields(line)
c.Assert(f[1], checker.Equals, originalImageName)
}
runCmd = exec.Command(dockerBinary, "commit", containerID, updatedImageName)
out, _, err = runCommandWithOutput(runCmd)
c.Assert(err, checker.IsNil)
runCmd = exec.Command(dockerBinary, "tag", "-f", updatedImageName, originalImageName)
out, _, err = runCommandWithOutput(runCmd)
c.Assert(err, checker.IsNil)
linesOut, err = exec.Command(dockerBinary, "ps", "--no-trunc").CombinedOutput()
c.Assert(err, checker.IsNil)
lines = strings.Split(strings.TrimSpace(string(linesOut)), "\n")
// skip header
lines = lines[1:]
c.Assert(len(lines), checker.Equals, 1)
for _, line := range lines {
f := strings.Fields(line)
c.Assert(f[1], checker.Equals, originalImageID)
}
}