package main
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"io/ioutil"
"net"
"net/http"
"net/http/httptest"
"net/url"
"os"
"os/exec"
"path"
"path/filepath"
"strconv"
"strings"
"time"
"github.com/docker/docker/api/types"
"github.com/docker/docker/integration-cli/checker"
"github.com/docker/docker/integration-cli/daemon"
"github.com/docker/docker/integration-cli/registry"
"github.com/docker/docker/integration-cli/request"
"github.com/docker/docker/pkg/stringutils"
icmd "github.com/docker/docker/pkg/testutil/cmd"
"github.com/go-check/check"
)
// Deprecated
func daemonHost() string {
return request.DaemonHost()
}
// FIXME(vdemeester) move this away are remove ignoreNoSuchContainer bool
func deleteContainer(container ...string) error {
return icmd.RunCommand(dockerBinary, append([]string{"rm", "-fv"}, container...)...).Compare(icmd.Success)
}
func getAllContainers(c *check.C) string {
result := icmd.RunCommand(dockerBinary, "ps", "-q", "-a")
result.Assert(c, icmd.Success)
return result.Combined()
}
// Deprecated
func deleteAllContainers(c *check.C) {
containers := getAllContainers(c)
if containers != "" {
err := deleteContainer(strings.Split(strings.TrimSpace(containers), "\n")...)
c.Assert(err, checker.IsNil)
}
}
func getPausedContainers(c *check.C) []string {
result := icmd.RunCommand(dockerBinary, "ps", "-f", "status=paused", "-q", "-a")
result.Assert(c, icmd.Success)
return strings.Fields(result.Combined())
}
func unpauseContainer(c *check.C, container string) {
dockerCmd(c, "unpause", container)
}
// Deprecated
func unpauseAllContainers(c *check.C) {
containers := getPausedContainers(c)
for _, value := range containers {
unpauseContainer(c, value)
}
}
func deleteImages(images ...string) error {
args := []string{dockerBinary, "rmi", "-f"}
return icmd.RunCmd(icmd.Cmd{Command: append(args, images...)}).Error
}
func dockerCmdWithError(args ...string) (string, int, error) {
if err := validateArgs(args...); err != nil {
return "", 0, err
}
result := icmd.RunCommand(dockerBinary, args...)
if result.Error != nil {
return result.Combined(), result.ExitCode, result.Compare(icmd.Success)
}
return result.Combined(), result.ExitCode, result.Error
}
func dockerCmdWithStdoutStderr(c *check.C, args ...string) (string, string, int) {
if err := validateArgs(args...); err != nil {
c.Fatalf(err.Error())
}
result := icmd.RunCommand(dockerBinary, args...)
c.Assert(result, icmd.Matches, icmd.Success)
return result.Stdout(), result.Stderr(), result.ExitCode
}
func dockerCmd(c *check.C, args ...string) (string, int) {
if err := validateArgs(args...); err != nil {
c.Fatalf(err.Error())
}
result := icmd.RunCommand(dockerBinary, args...)
c.Assert(result, icmd.Matches, icmd.Success)
return result.Combined(), result.ExitCode
}
func dockerCmdWithResult(args ...string) *icmd.Result {
return icmd.RunCommand(dockerBinary, args...)
}
func binaryWithArgs(args ...string) []string {
return append([]string{dockerBinary}, args...)
}
// execute a docker command with a timeout
func dockerCmdWithTimeout(timeout time.Duration, args ...string) *icmd.Result {
if err := validateArgs(args...); err != nil {
return &icmd.Result{Error: err}
}
return icmd.RunCmd(icmd.Cmd{Command: binaryWithArgs(args...), Timeout: timeout})
}
// execute a docker command in a directory
func dockerCmdInDir(c *check.C, path string, args ...string) (string, int, error) {
if err := validateArgs(args...); err != nil {
c.Fatalf(err.Error())
}
result := icmd.RunCmd(icmd.Cmd{Command: binaryWithArgs(args...), Dir: path})
return result.Combined(), result.ExitCode, result.Error
}
// validateArgs is a checker to ensure tests are not running commands which are
// not supported on platforms. Specifically on Windows this is 'busybox top'.
func validateArgs(args ...string) error {
if testEnv.DaemonPlatform() != "windows" {
return nil
}
foundBusybox := -1
for key, value := range args {
if strings.ToLower(value) == "busybox" {
foundBusybox = key
}
if (foundBusybox != -1) && (key == foundBusybox+1) && (strings.ToLower(value) == "top") {
return errors.New("cannot use 'busybox top' in tests on Windows. Use runSleepingContainer()")
}
}
return nil
}
func findContainerIP(c *check.C, id string, network string) string {
out, _ := dockerCmd(c, "inspect", fmt.Sprintf("--format='{{ .NetworkSettings.Networks.%s.IPAddress }}'", network), id)
return strings.Trim(out, " \r\n'")
}
func getContainerCount(c *check.C) int {
const containers = "Containers:"
result := icmd.RunCommand(dockerBinary, "info")
result.Assert(c, icmd.Success)
lines := strings.Split(result.Combined(), "\n")
for _, line := range lines {
if strings.Contains(line, containers) {
output := strings.TrimSpace(line)
output = strings.TrimLeft(output, containers)
output = strings.Trim(output, " ")
containerCount, err := strconv.Atoi(output)
c.Assert(err, checker.IsNil)
return containerCount
}
}
return 0
}
// FakeContext creates directories that can be used as a build context
type FakeContext struct {
Dir string
}
// Add a file at a path, creating directories where necessary
func (f *FakeContext) Add(file, content string) error {
return f.addFile(file, []byte(content))
}
func (f *FakeContext) addFile(file string, content []byte) error {
fp := filepath.Join(f.Dir, filepath.FromSlash(file))
dirpath := filepath.Dir(fp)
if dirpath != "." {
if err := os.MkdirAll(dirpath, 0755); err != nil {
return err
}
}
return ioutil.WriteFile(fp, content, 0644)
}
// Delete a file at a path
func (f *FakeContext) Delete(file string) error {
fp := filepath.Join(f.Dir, filepath.FromSlash(file))
return os.RemoveAll(fp)
}
// Close deletes the context
func (f *FakeContext) Close() error {
return os.RemoveAll(f.Dir)
}
func fakeContextFromNewTempDir(c *check.C) *FakeContext {
tmp, err := ioutil.TempDir("", "fake-context")
c.Assert(err, checker.IsNil)
if err := os.Chmod(tmp, 0755); err != nil {
c.Fatal(err)
}
return fakeContextFromDir(tmp)
}
func fakeContextFromDir(dir string) *FakeContext {
return &FakeContext{dir}
}
func fakeContextWithFiles(c *check.C, files map[string]string) *FakeContext {
ctx := fakeContextFromNewTempDir(c)
for file, content := range files {
if err := ctx.Add(file, content); err != nil {
ctx.Close()
c.Fatal(err)
}
}
return ctx
}
func fakeContextAddDockerfile(c *check.C, ctx *FakeContext, dockerfile string) {
if err := ctx.Add("Dockerfile", dockerfile); err != nil {
ctx.Close()
c.Fatal(err)
}
}
func fakeContext(c *check.C, dockerfile string, files map[string]string) *FakeContext {
ctx := fakeContextWithFiles(c, files)
fakeContextAddDockerfile(c, ctx, dockerfile)
return ctx
}
// FakeStorage is a static file server. It might be running locally or remotely
// on test host.
type FakeStorage interface {
Close() error
URL() string
CtxDir() string
}
func fakeBinaryStorage(c *check.C, archives map[string]*bytes.Buffer) FakeStorage {
ctx := fakeContextFromNewTempDir(c)
for name, content := range archives {
if err := ctx.addFile(name, content.Bytes()); err != nil {
c.Fatal(err)
}
}
return fakeStorageWithContext(c, ctx)
}
// fakeStorage returns either a local or remote (at daemon machine) file server
func fakeStorage(c *check.C, files map[string]string) FakeStorage {
ctx := fakeContextWithFiles(c, files)
return fakeStorageWithContext(c, ctx)
}
// fakeStorageWithContext returns either a local or remote (at daemon machine) file server
func fakeStorageWithContext(c *check.C, ctx *FakeContext) FakeStorage {
if testEnv.LocalDaemon() {
return newLocalFakeStorage(c, ctx)
}
return newRemoteFileServer(c, ctx)
}
// localFileStorage is a file storage on the running machine
type localFileStorage struct {
*FakeContext
*httptest.Server
}
func (s *localFileStorage) URL() string {
return s.Server.URL
}
func (s *localFileStorage) CtxDir() string {
return s.FakeContext.Dir
}
func (s *localFileStorage) Close() error {
defer s.Server.Close()
return s.FakeContext.Close()
}
func newLocalFakeStorage(c *check.C, ctx *FakeContext) *localFileStorage {
handler := http.FileServer(http.Dir(ctx.Dir))
server := httptest.NewServer(handler)
return &localFileStorage{
FakeContext: ctx,
Server: server,
}
}
// remoteFileServer is a containerized static file server started on the remote
// testing machine to be used in URL-accepting docker build functionality.
type remoteFileServer struct {
host string // hostname/port web server is listening to on docker host e.g. 0.0.0.0:43712
container string
image string
ctx *FakeContext
}
func (f *remoteFileServer) URL() string {
u := url.URL{
Scheme: "http",
Host: f.host}
return u.String()
}
func (f *remoteFileServer) CtxDir() string {
return f.ctx.Dir
}
func (f *remoteFileServer) Close() error {
defer func() {
if f.ctx != nil {
f.ctx.Close()
}
if f.image != "" {
deleteImages(f.image)
}
}()
if f.container == "" {
return nil
}
return deleteContainer(f.container)
}
func newRemoteFileServer(c *check.C, ctx *FakeContext) *remoteFileServer {
var (
image = fmt.Sprintf("fileserver-img-%s", strings.ToLower(stringutils.GenerateRandomAlphaOnlyString(10)))
container = fmt.Sprintf("fileserver-cnt-%s", strings.ToLower(stringutils.GenerateRandomAlphaOnlyString(10)))
)
ensureHTTPServerImage(c)
// Build the image
fakeContextAddDockerfile(c, ctx, `FROM httpserver
COPY . /static`)
buildImageSuccessfully(c, image, withoutCache, withExternalBuildContext(ctx))
// Start the container
dockerCmd(c, "run", "-d", "-P", "--name", container, image)
// Find out the system assigned port
out, _ := dockerCmd(c, "port", container, "80/tcp")
fileserverHostPort := strings.Trim(out, "\n")
_, port, err := net.SplitHostPort(fileserverHostPort)
if err != nil {
c.Fatalf("unable to parse file server host:port: %v", err)
}
dockerHostURL, err := url.Parse(daemonHost())
if err != nil {
c.Fatalf("unable to parse daemon host URL: %v", err)
}
host, _, err := net.SplitHostPort(dockerHostURL.Host)
if err != nil {
c.Fatalf("unable to parse docker daemon host:port: %v", err)
}
return &remoteFileServer{
container: container,
image: image,
host: fmt.Sprintf("%s:%s", host, port),
ctx: ctx}
}
func inspectFieldAndUnmarshall(c *check.C, name, field string, output interface{}) {
str := inspectFieldJSON(c, name, field)
err := json.Unmarshal([]byte(str), output)
if c != nil {
c.Assert(err, check.IsNil, check.Commentf("failed to unmarshal: %v", err))
}
}
func inspectFilter(name, filter string) (string, error) {
format := fmt.Sprintf("{{%s}}", filter)
result := icmd.RunCommand(dockerBinary, "inspect", "-f", format, name)
if result.Error != nil || result.ExitCode != 0 {
return "", fmt.Errorf("failed to inspect %s: %s", name, result.Combined())
}
return strings.TrimSpace(result.Combined()), nil
}
func inspectFieldWithError(name, field string) (string, error) {
return inspectFilter(name, fmt.Sprintf(".%s", field))
}
func inspectField(c *check.C, name, field string) string {
out, err := inspectFilter(name, fmt.Sprintf(".%s", field))
if c != nil {
c.Assert(err, check.IsNil)
}
return out
}
func inspectFieldJSON(c *check.C, name, field string) string {
out, err := inspectFilter(name, fmt.Sprintf("json .%s", field))
if c != nil {
c.Assert(err, check.IsNil)
}
return out
}
func inspectFieldMap(c *check.C, name, path, field string) string {
out, err := inspectFilter(name, fmt.Sprintf("index .%s %q", path, field))
if c != nil {
c.Assert(err, check.IsNil)
}
return out
}
func inspectMountSourceField(name, destination string) (string, error) {
m, err := inspectMountPoint(name, destination)
if err != nil {
return "", err
}
return m.Source, nil
}
func inspectMountPoint(name, destination string) (types.MountPoint, error) {
out, err := inspectFilter(name, "json .Mounts")
if err != nil {
return types.MountPoint{}, err
}
return inspectMountPointJSON(out, destination)
}
var errMountNotFound = errors.New("mount point not found")
func inspectMountPointJSON(j, destination string) (types.MountPoint, error) {
var mp []types.MountPoint
if err := json.Unmarshal([]byte(j), &mp); err != nil {
return types.MountPoint{}, err
}
var m *types.MountPoint
for _, c := range mp {
if c.Destination == destination {
m = &c
break
}
}
if m == nil {
return types.MountPoint{}, errMountNotFound
}
return *m, nil
}
func inspectImage(c *check.C, name, filter string) string {
args := []string{"inspect", "--type", "image"}
if filter != "" {
format := fmt.Sprintf("{{%s}}", filter)
args = append(args, "-f", format)
}
args = append(args, name)
result := icmd.RunCommand(dockerBinary, args...)
result.Assert(c, icmd.Success)
return strings.TrimSpace(result.Combined())
}
func getIDByName(c *check.C, name string) string {
id, err := inspectFieldWithError(name, "Id")
c.Assert(err, checker.IsNil)
return id
}
func buildImageSuccessfully(c *check.C, name string, cmdOperators ...func(*icmd.Cmd) func()) {
buildImage(name, cmdOperators...).Assert(c, icmd.Success)
}
func buildImage(name string, cmdOperators ...func(*icmd.Cmd) func()) *icmd.Result {
cmd := icmd.Command(dockerBinary, "build", "-t", name)
for _, op := range cmdOperators {
deferFn := op(&cmd)
if deferFn != nil {
defer deferFn()
}
}
return icmd.RunCmd(cmd)
}
func withBuildContextPath(path string) func(*icmd.Cmd) func() {
return func(cmd *icmd.Cmd) func() {
cmd.Command = append(cmd.Command, path)
return nil
}
}
func withExternalBuildContext(ctx *FakeContext) func(*icmd.Cmd) func() {
return func(cmd *icmd.Cmd) func() {
cmd.Dir = ctx.Dir
cmd.Command = append(cmd.Command, ".")
return nil
}
}
func withBuildContext(c *check.C, contextOperators ...func(*FakeContext) error) func(*icmd.Cmd) func() {
ctx := fakeContextFromNewTempDir(c)
for _, op := range contextOperators {
if err := op(ctx); err != nil {
c.Fatal(err)
}
}
return func(cmd *icmd.Cmd) func() {
cmd.Dir = ctx.Dir
cmd.Command = append(cmd.Command, ".")
return closeBuildContext(c, ctx)
}
}
func withBuildFlags(flags ...string) func(*icmd.Cmd) func() {
return func(cmd *icmd.Cmd) func() {
cmd.Command = append(cmd.Command, flags...)
return nil
}
}
func withoutCache(cmd *icmd.Cmd) func() {
cmd.Command = append(cmd.Command, "--no-cache")
return nil
}
func withFile(name, content string) func(*FakeContext) error {
return func(ctx *FakeContext) error {
return ctx.Add(name, content)
}
}
func closeBuildContext(c *check.C, ctx *FakeContext) func() {
return func() {
if err := ctx.Close(); err != nil {
c.Fatal(err)
}
}
}
func withDockerfile(dockerfile string) func(*icmd.Cmd) func() {
return func(cmd *icmd.Cmd) func() {
cmd.Command = append(cmd.Command, "-")
cmd.Stdin = strings.NewReader(dockerfile)
return nil
}
}
func trustedBuild(cmd *icmd.Cmd) func() {
trustedCmd(cmd)
return nil
}
func withEnvironmentVariales(envs ...string) func(cmd *icmd.Cmd) func() {
return func(cmd *icmd.Cmd) func() {
cmd.Env = envs
return nil
}
}
type gitServer interface {
URL() string
Close() error
}
type localGitServer struct {
*httptest.Server
}
func (r *localGitServer) Close() error {
r.Server.Close()
return nil
}
func (r *localGitServer) URL() string {
return r.Server.URL
}
type fakeGit struct {
root string
server gitServer
RepoURL string
}
func (g *fakeGit) Close() {
g.server.Close()
os.RemoveAll(g.root)
}
func newFakeGit(c *check.C, name string, files map[string]string, enforceLocalServer bool) *fakeGit {
ctx := fakeContextWithFiles(c, files)
defer ctx.Close()
curdir, err := os.Getwd()
if err != nil {
c.Fatal(err)
}
defer os.Chdir(curdir)
if output, err := exec.Command("git", "init", ctx.Dir).CombinedOutput(); err != nil {
c.Fatalf("error trying to init repo: %s (%s)", err, output)
}
err = os.Chdir(ctx.Dir)
if err != nil {
c.Fatal(err)
}
if output, err := exec.Command("git", "config", "user.name", "Fake User").CombinedOutput(); err != nil {
c.Fatalf("error trying to set 'user.name': %s (%s)", err, output)
}
if output, err := exec.Command("git", "config", "user.email", "fake.user@example.com").CombinedOutput(); err != nil {
c.Fatalf("error trying to set 'user.email': %s (%s)", err, output)
}
if output, err := exec.Command("git", "add", "*").CombinedOutput(); err != nil {
c.Fatalf("error trying to add files to repo: %s (%s)", err, output)
}
if output, err := exec.Command("git", "commit", "-a", "-m", "Initial commit").CombinedOutput(); err != nil {
c.Fatalf("error trying to commit to repo: %s (%s)", err, output)
}
root, err := ioutil.TempDir("", "docker-test-git-repo")
if err != nil {
c.Fatal(err)
}
repoPath := filepath.Join(root, name+".git")
if output, err := exec.Command("git", "clone", "--bare", ctx.Dir, repoPath).CombinedOutput(); err != nil {
os.RemoveAll(root)
c.Fatalf("error trying to clone --bare: %s (%s)", err, output)
}
err = os.Chdir(repoPath)
if err != nil {
os.RemoveAll(root)
c.Fatal(err)
}
if output, err := exec.Command("git", "update-server-info").CombinedOutput(); err != nil {
os.RemoveAll(root)
c.Fatalf("error trying to git update-server-info: %s (%s)", err, output)
}
err = os.Chdir(curdir)
if err != nil {
os.RemoveAll(root)
c.Fatal(err)
}
var server gitServer
if !enforceLocalServer {
// use fakeStorage server, which might be local or remote (at test daemon)
server = fakeStorageWithContext(c, fakeContextFromDir(root))
} else {
// always start a local http server on CLI test machine
httpServer := httptest.NewServer(http.FileServer(http.Dir(root)))
server = &localGitServer{httpServer}
}
return &fakeGit{
root: root,
server: server,
RepoURL: fmt.Sprintf("%s/%s.git", server.URL(), name),
}
}
// Write `content` to the file at path `dst`, creating it if necessary,
// as well as any missing directories.
// The file is truncated if it already exists.
// Fail the test when error occurs.
func writeFile(dst, content string, c *check.C) {
// Create subdirectories if necessary
c.Assert(os.MkdirAll(path.Dir(dst), 0700), check.IsNil)
f, err := os.OpenFile(dst, os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0700)
c.Assert(err, check.IsNil)
defer f.Close()
// Write content (truncate if it exists)
_, err = io.Copy(f, strings.NewReader(content))
c.Assert(err, check.IsNil)
}
// Return the contents of file at path `src`.
// Fail the test when error occurs.
func readFile(src string, c *check.C) (content string) {
data, err := ioutil.ReadFile(src)
c.Assert(err, check.IsNil)
return string(data)
}
func containerStorageFile(containerID, basename string) string {
return filepath.Join(testEnv.ContainerStoragePath(), containerID, basename)
}
// docker commands that use this function must be run with the '-d' switch.
func runCommandAndReadContainerFile(c *check.C, filename string, command string, args ...string) []byte {
result := icmd.RunCommand(command, args...)
result.Assert(c, icmd.Success)
contID := strings.TrimSpace(result.Combined())
if err := waitRun(contID); err != nil {
c.Fatalf("%v: %q", contID, err)
}
return readContainerFile(c, contID, filename)
}
func readContainerFile(c *check.C, containerID, filename string) []byte {
f, err := os.Open(containerStorageFile(containerID, filename))
c.Assert(err, checker.IsNil)
defer f.Close()
content, err := ioutil.ReadAll(f)
c.Assert(err, checker.IsNil)
return content
}
func readContainerFileWithExec(c *check.C, containerID, filename string) []byte {
result := icmd.RunCommand(dockerBinary, "exec", containerID, "cat", filename)
result.Assert(c, icmd.Success)
return []byte(result.Combined())
}
// daemonTime provides the current time on the daemon host
func daemonTime(c *check.C) time.Time {
if testEnv.LocalDaemon() {
return time.Now()
}
status, body, err := request.SockRequest("GET", "/info", nil, daemonHost())
c.Assert(err, check.IsNil)
c.Assert(status, check.Equals, http.StatusOK)
type infoJSON struct {
SystemTime string
}
var info infoJSON
err = json.Unmarshal(body, &info)
c.Assert(err, check.IsNil, check.Commentf("unable to unmarshal GET /info response"))
dt, err := time.Parse(time.RFC3339Nano, info.SystemTime)
c.Assert(err, check.IsNil, check.Commentf("invalid time format in GET /info response"))
return dt
}
// daemonUnixTime returns the current time on the daemon host with nanoseconds precision.
// It return the time formatted how the client sends timestamps to the server.
func daemonUnixTime(c *check.C) string {
return parseEventTime(daemonTime(c))
}
func parseEventTime(t time.Time) string {
return fmt.Sprintf("%d.%09d", t.Unix(), int64(t.Nanosecond()))
}
func setupRegistry(c *check.C, schema1 bool, auth, tokenURL string) *registry.V2 {
reg, err := registry.NewV2(schema1, auth, tokenURL, privateRegistryURL)
c.Assert(err, check.IsNil)
// Wait for registry to be ready to serve requests.
for i := 0; i != 50; i++ {
if err = reg.Ping(); err == nil {
break
}
time.Sleep(100 * time.Millisecond)
}
c.Assert(err, check.IsNil, check.Commentf("Timeout waiting for test registry to become available: %v", err))
return reg
}
func setupNotary(c *check.C) *testNotary {
ts, err := newTestNotary(c)
c.Assert(err, check.IsNil)
return ts
}
// appendBaseEnv appends the minimum set of environment variables to exec the
// docker cli binary for testing with correct configuration to the given env
// list.
func appendBaseEnv(isTLS bool, env ...string) []string {
preserveList := []string{
// preserve remote test host
"DOCKER_HOST",
// windows: requires preserving SystemRoot, otherwise dial tcp fails
// with "GetAddrInfoW: A non-recoverable error occurred during a database lookup."
"SystemRoot",
// testing help text requires the $PATH to dockerd is set
"PATH",
}
if isTLS {
preserveList = append(preserveList, "DOCKER_TLS_VERIFY", "DOCKER_CERT_PATH")
}
for _, key := range preserveList {
if val := os.Getenv(key); val != "" {
env = append(env, fmt.Sprintf("%s=%s", key, val))
}
}
return env
}
func createTmpFile(c *check.C, content string) string {
f, err := ioutil.TempFile("", "testfile")
c.Assert(err, check.IsNil)
filename := f.Name()
err = ioutil.WriteFile(filename, []byte(content), 0644)
c.Assert(err, check.IsNil)
return filename
}
func waitForContainer(contID string, args ...string) error {
args = append([]string{dockerBinary, "run", "--name", contID}, args...)
result := icmd.RunCmd(icmd.Cmd{Command: args})
if result.Error != nil {
return result.Error
}
return waitRun(contID)
}
// waitRestart will wait for the specified container to restart once
func waitRestart(contID string, duration time.Duration) error {
return waitInspect(contID, "{{.RestartCount}}", "1", duration)
}
// waitRun will wait for the specified container to be running, maximum 5 seconds.
func waitRun(contID string) error {
return waitInspect(contID, "{{.State.Running}}", "true", 5*time.Second)
}
// waitExited will wait for the specified container to state exit, subject
// to a maximum time limit in seconds supplied by the caller
func waitExited(contID string, duration time.Duration) error {
return waitInspect(contID, "{{.State.Status}}", "exited", duration)
}
// waitInspect will wait for the specified container to have the specified string
// in the inspect output. It will wait until the specified timeout (in seconds)
// is reached.
func waitInspect(name, expr, expected string, timeout time.Duration) error {
return waitInspectWithArgs(name, expr, expected, timeout)
}
func waitInspectWithArgs(name, expr, expected string, timeout time.Duration, arg ...string) error {
return daemon.WaitInspectWithArgs(dockerBinary, name, expr, expected, timeout, arg...)
}
func getInspectBody(c *check.C, version, id string) []byte {
endpoint := fmt.Sprintf("/%s/containers/%s/json", version, id)
status, body, err := request.SockRequest("GET", endpoint, nil, daemonHost())
c.Assert(err, check.IsNil)
c.Assert(status, check.Equals, http.StatusOK)
return body
}
// Run a long running idle task in a background container using the
// system-specific default image and command.
func runSleepingContainer(c *check.C, extraArgs ...string) (string, int) {
return runSleepingContainerInImage(c, defaultSleepImage, extraArgs...)
}
// Run a long running idle task in a background container using the specified
// image and the system-specific command.
func runSleepingContainerInImage(c *check.C, image string, extraArgs ...string) (string, int) {
args := []string{"run", "-d"}
args = append(args, extraArgs...)
args = append(args, image)
args = append(args, sleepCommandForDaemonPlatform()...)
return dockerCmd(c, args...)
}
// minimalBaseImage returns the name of the minimal base image for the current
// daemon platform.
func minimalBaseImage() string {
return testEnv.MinimalBaseImage()
}
func getGoroutineNumber() (int, error) {
i := struct {
NGoroutines int
}{}
status, b, err := request.SockRequest("GET", "/info", nil, daemonHost())
if err != nil {
return 0, err
}
if status != http.StatusOK {
return 0, fmt.Errorf("http status code: %d", status)
}
if err := json.Unmarshal(b, &i); err != nil {
return 0, err
}
return i.NGoroutines, nil
}
func waitForGoroutines(expected int) error {
t := time.After(30 * time.Second)
for {
select {
case <-t:
n, err := getGoroutineNumber()
if err != nil {
return err
}
if n > expected {
return fmt.Errorf("leaked goroutines: expected less than or equal to %d, got: %d", expected, n)
}
default:
n, err := getGoroutineNumber()
if err != nil {
return err
}
if n <= expected {
return nil
}
time.Sleep(200 * time.Millisecond)
}
}
}
// getErrorMessage returns the error message from an error API response
func getErrorMessage(c *check.C, body []byte) string {
var resp types.ErrorResponse
c.Assert(json.Unmarshal(body, &resp), check.IsNil)
return strings.TrimSpace(resp.Message)
}
func waitAndAssert(c *check.C, timeout time.Duration, f checkF, checker check.Checker, args ...interface{}) {
after := time.After(timeout)
for {
v, comment := f(c)
assert, _ := checker.Check(append([]interface{}{v}, args...), checker.Info().Params)
select {
case <-after:
assert = true
default:
}
if assert {
if comment != nil {
args = append(args, comment)
}
c.Assert(v, checker, args...)
return
}
time.Sleep(100 * time.Millisecond)
}
}
type checkF func(*check.C) (interface{}, check.CommentInterface)
type reducer func(...interface{}) interface{}
func reducedCheck(r reducer, funcs ...checkF) checkF {
return func(c *check.C) (interface{}, check.CommentInterface) {
var values []interface{}
var comments []string
for _, f := range funcs {
v, comment := f(c)
values = append(values, v)
if comment != nil {
comments = append(comments, comment.CheckCommentString())
}
}
return r(values...), check.Commentf("%v", strings.Join(comments, ", "))
}
}
func sumAsIntegers(vals ...interface{}) interface{} {
var s int
for _, v := range vals {
s += v.(int)
}
return s
}