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moby--moby/integration-cli/docker_cli_pull_test.go

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package main
import (
"fmt"
"regexp"
Deprecating ResolveRepositoryName Passing RepositoryInfo to ResolveAuthConfig, pullRepository, and pushRepository Moving --registry-mirror configuration to registry config Created resolve_repository job Repo names with 'index.docker.io' or 'docker.io' are now synonymous with omitting an index name. Adding test for RepositoryInfo Adding tests for opts.StringSetOpts and registry.ValidateMirror Fixing search term use of repoInfo Adding integration tests for registry mirror configuration Normalizing LookupImage image name to match LocalName parsing rules Normalizing repository LocalName to avoid multiple references to an official image Removing errorOut use in tests Removing TODO comment gofmt changes golint comments cleanup. renaming RegistryOptions => registry.Options, and RegistryServiceConfig => registry.ServiceConfig Splitting out builtins.Registry and registry.NewService calls Stray whitespace cleanup Moving integration tests for Mirrors and InsecureRegistries into TestNewIndexInfo unit test Factoring out ValidateRepositoryName from NewRepositoryInfo Removing unused IndexServerURL Allowing json marshaling of ServiceConfig. Exposing ServiceConfig in /info Switching to CamelCase for json marshaling PR cleanup; removing 'Is' prefix from boolean members. Removing unneeded json tags. Removing non-cleanup related fix for 'localhost:[port]' in splitReposName Merge fixes for gh9735 Fixing integration test Reapplying #9754 Adding comment on config.IndexConfigs use from isSecureIndex Remove unused error return value from isSecureIndex Signed-off-by: Don Kjer <don.kjer@gmail.com> Adding back comment in isSecureIndex Signed-off-by: Don Kjer <don.kjer@gmail.com>
2014-10-06 21:54:52 -04:00
"strings"
"sync"
"time"
"github.com/docker/distribution/digest"
"github.com/docker/docker/pkg/integration/checker"
"github.com/go-check/check"
)
// TestPullFromCentralRegistry pulls an image from the central registry and verifies that the client
// prints all expected output.
func (s *DockerHubPullSuite) TestPullFromCentralRegistry(c *check.C) {
testRequires(c, DaemonIsLinux)
out := s.Cmd(c, "pull", "hello-world")
defer deleteImages("hello-world")
c.Assert(out, checker.Contains, "Using default tag: latest", check.Commentf("expected the 'latest' tag to be automatically assumed"))
c.Assert(out, checker.Contains, "Pulling from library/hello-world", check.Commentf("expected the 'library/' prefix to be automatically assumed"))
c.Assert(out, checker.Contains, "Downloaded newer image for hello-world:latest")
matches := regexp.MustCompile(`Digest: (.+)\n`).FindAllStringSubmatch(out, -1)
c.Assert(len(matches), checker.Equals, 1, check.Commentf("expected exactly one image digest in the output"))
c.Assert(len(matches[0]), checker.Equals, 2, check.Commentf("unexpected number of submatches for the digest"))
_, err := digest.ParseDigest(matches[0][1])
c.Check(err, checker.IsNil, check.Commentf("invalid digest %q in output", matches[0][1]))
// We should have a single entry in images.
img := strings.TrimSpace(s.Cmd(c, "images"))
splitImg := strings.Split(img, "\n")
c.Assert(splitImg, checker.HasLen, 2)
c.Assert(splitImg[1], checker.Matches, `hello-world\s+latest.*?`, check.Commentf("invalid output for `docker images` (expected image and tag name"))
}
// TestPullNonExistingImage pulls non-existing images from the central registry, with different
// combinations of implicit tag and library prefix.
func (s *DockerHubPullSuite) TestPullNonExistingImage(c *check.C) {
testRequires(c, DaemonIsLinux)
type entry struct {
repo string
alias string
tag string
}
entries := []entry{
{"library/asdfasdf", "asdfasdf", "foobar"},
{"library/asdfasdf", "library/asdfasdf", "foobar"},
{"library/asdfasdf", "asdfasdf", ""},
{"library/asdfasdf", "asdfasdf", "latest"},
{"library/asdfasdf", "library/asdfasdf", ""},
{"library/asdfasdf", "library/asdfasdf", "latest"},
}
// The option field indicates "-a" or not.
type record struct {
e entry
option string
out string
err error
}
// Execute 'docker pull' in parallel, pass results (out, err) and
// necessary information ("-a" or not, and the image name) to channel.
var group sync.WaitGroup
recordChan := make(chan record, len(entries)*2)
for _, e := range entries {
group.Add(1)
go func(e entry) {
defer group.Done()
repoName := e.alias
if e.tag != "" {
repoName += ":" + e.tag
}
out, err := s.CmdWithError("pull", repoName)
recordChan <- record{e, "", out, err}
}(e)
if e.tag == "" {
// pull -a on a nonexistent registry should fall back as well
group.Add(1)
go func(e entry) {
defer group.Done()
out, err := s.CmdWithError("pull", "-a", e.alias)
recordChan <- record{e, "-a", out, err}
}(e)
}
}
// Wait for completion
group.Wait()
close(recordChan)
// Process the results (out, err).
for record := range recordChan {
if len(record.option) == 0 {
c.Assert(record.err, checker.NotNil, check.Commentf("expected non-zero exit status when pulling non-existing image: %s", record.out))
// Hub returns 401 rather than 404 for nonexistent repos over
// the v2 protocol - but we should end up falling back to v1,
// which does return a 404.
tag := record.e.tag
if tag == "" {
tag = "latest"
}
c.Assert(record.out, checker.Contains, fmt.Sprintf("Error: image %s:%s not found", record.e.repo, tag), check.Commentf("expected image not found error messages"))
} else {
// pull -a on a nonexistent registry should fall back as well
c.Assert(record.err, checker.NotNil, check.Commentf("expected non-zero exit status when pulling non-existing image: %s", record.out))
c.Assert(record.out, checker.Contains, fmt.Sprintf("Error: image %s not found", record.e.repo), check.Commentf("expected image not found error messages"))
c.Assert(record.out, checker.Not(checker.Contains), "unauthorized", check.Commentf(`message should not contain "unauthorized"`))
}
}
}
Deprecating ResolveRepositoryName Passing RepositoryInfo to ResolveAuthConfig, pullRepository, and pushRepository Moving --registry-mirror configuration to registry config Created resolve_repository job Repo names with 'index.docker.io' or 'docker.io' are now synonymous with omitting an index name. Adding test for RepositoryInfo Adding tests for opts.StringSetOpts and registry.ValidateMirror Fixing search term use of repoInfo Adding integration tests for registry mirror configuration Normalizing LookupImage image name to match LocalName parsing rules Normalizing repository LocalName to avoid multiple references to an official image Removing errorOut use in tests Removing TODO comment gofmt changes golint comments cleanup. renaming RegistryOptions => registry.Options, and RegistryServiceConfig => registry.ServiceConfig Splitting out builtins.Registry and registry.NewService calls Stray whitespace cleanup Moving integration tests for Mirrors and InsecureRegistries into TestNewIndexInfo unit test Factoring out ValidateRepositoryName from NewRepositoryInfo Removing unused IndexServerURL Allowing json marshaling of ServiceConfig. Exposing ServiceConfig in /info Switching to CamelCase for json marshaling PR cleanup; removing 'Is' prefix from boolean members. Removing unneeded json tags. Removing non-cleanup related fix for 'localhost:[port]' in splitReposName Merge fixes for gh9735 Fixing integration test Reapplying #9754 Adding comment on config.IndexConfigs use from isSecureIndex Remove unused error return value from isSecureIndex Signed-off-by: Don Kjer <don.kjer@gmail.com> Adding back comment in isSecureIndex Signed-off-by: Don Kjer <don.kjer@gmail.com>
2014-10-06 21:54:52 -04:00
// TestPullFromCentralRegistryImplicitRefParts pulls an image from the central registry and verifies
// that pulling the same image with different combinations of implicit elements of the the image
// reference (tag, repository, central registry url, ...) doesn't trigger a new pull nor leads to
// multiple images.
func (s *DockerHubPullSuite) TestPullFromCentralRegistryImplicitRefParts(c *check.C) {
testRequires(c, DaemonIsLinux)
// Pull hello-world from v2
pullFromV2 := func(ref string) (int, string) {
out := s.Cmd(c, "pull", "hello-world")
v1Retries := 0
for strings.Contains(out, "this image was pulled from a legacy registry") {
// Some network errors may cause fallbacks to the v1
// protocol, which would violate the test's assumption
// that it will get the same images. To make the test
// more robust against these network glitches, allow a
// few retries if we end up with a v1 pull.
if v1Retries > 2 {
c.Fatalf("too many v1 fallback incidents when pulling %s", ref)
}
s.Cmd(c, "rmi", ref)
out = s.Cmd(c, "pull", ref)
v1Retries++
}
return v1Retries, out
}
pullFromV2("hello-world")
defer deleteImages("hello-world")
s.Cmd(c, "tag", "hello-world", "hello-world-backup")
for _, ref := range []string{
"hello-world",
"hello-world:latest",
"library/hello-world",
"library/hello-world:latest",
"docker.io/library/hello-world",
"index.docker.io/library/hello-world",
} {
var out string
for {
var v1Retries int
v1Retries, out = pullFromV2(ref)
// Keep repeating the test case until we don't hit a v1
// fallback case. We won't get the right "Image is up
// to date" message if the local image was replaced
// with one pulled from v1.
if v1Retries == 0 {
break
}
s.Cmd(c, "rmi", ref)
s.Cmd(c, "tag", "hello-world-backup", "hello-world")
}
c.Assert(out, checker.Contains, "Image is up to date for hello-world:latest")
}
s.Cmd(c, "rmi", "hello-world-backup")
// We should have a single entry in images.
img := strings.TrimSpace(s.Cmd(c, "images"))
splitImg := strings.Split(img, "\n")
c.Assert(splitImg, checker.HasLen, 2)
c.Assert(splitImg[1], checker.Matches, `hello-world\s+latest.*?`, check.Commentf("invalid output for `docker images` (expected image and tag name"))
}
// TestPullScratchNotAllowed verifies that pulling 'scratch' is rejected.
func (s *DockerHubPullSuite) TestPullScratchNotAllowed(c *check.C) {
testRequires(c, DaemonIsLinux)
out, err := s.CmdWithError("pull", "scratch")
c.Assert(err, checker.NotNil, check.Commentf("expected pull of scratch to fail"))
c.Assert(out, checker.Contains, "'scratch' is a reserved name")
c.Assert(out, checker.Not(checker.Contains), "Pulling repository scratch")
}
// TestPullAllTagsFromCentralRegistry pulls using `all-tags` for a given image and verifies that it
// results in more images than a naked pull.
func (s *DockerHubPullSuite) TestPullAllTagsFromCentralRegistry(c *check.C) {
testRequires(c, DaemonIsLinux)
s.Cmd(c, "pull", "busybox")
outImageCmd := s.Cmd(c, "images", "busybox")
splitOutImageCmd := strings.Split(strings.TrimSpace(outImageCmd), "\n")
c.Assert(splitOutImageCmd, checker.HasLen, 2)
s.Cmd(c, "pull", "--all-tags=true", "busybox")
outImageAllTagCmd := s.Cmd(c, "images", "busybox")
linesCount := strings.Count(outImageAllTagCmd, "\n")
c.Assert(linesCount, checker.GreaterThan, 2, check.Commentf("pulling all tags should provide more than two images, got %s", outImageAllTagCmd))
// Verify that the line for 'busybox:latest' is left unchanged.
var latestLine string
for _, line := range strings.Split(outImageAllTagCmd, "\n") {
if strings.HasPrefix(line, "busybox") && strings.Contains(line, "latest") {
latestLine = line
break
}
}
c.Assert(latestLine, checker.Not(checker.Equals), "", check.Commentf("no entry for busybox:latest found after pulling all tags"))
splitLatest := strings.Fields(latestLine)
splitCurrent := strings.Fields(splitOutImageCmd[1])
// Clear relative creation times, since these can easily change between
// two invocations of "docker images". Without this, the test can fail
// like this:
// ... obtained []string = []string{"busybox", "latest", "d9551b4026f0", "27", "minutes", "ago", "1.113", "MB"}
// ... expected []string = []string{"busybox", "latest", "d9551b4026f0", "26", "minutes", "ago", "1.113", "MB"}
splitLatest[3] = ""
splitLatest[4] = ""
splitLatest[5] = ""
splitCurrent[3] = ""
splitCurrent[4] = ""
splitCurrent[5] = ""
c.Assert(splitLatest, checker.DeepEquals, splitCurrent, check.Commentf("busybox:latest was changed after pulling all tags"))
}
// TestPullClientDisconnect kills the client during a pull operation and verifies that the operation
// gets cancelled.
//
// Ref: docker/docker#15589
func (s *DockerHubPullSuite) TestPullClientDisconnect(c *check.C) {
testRequires(c, DaemonIsLinux)
repoName := "hello-world:latest"
pullCmd := s.MakeCmd("pull", repoName)
stdout, err := pullCmd.StdoutPipe()
c.Assert(err, checker.IsNil)
err = pullCmd.Start()
c.Assert(err, checker.IsNil)
// Cancel as soon as we get some output.
buf := make([]byte, 10)
_, err = stdout.Read(buf)
c.Assert(err, checker.IsNil)
err = pullCmd.Process.Kill()
c.Assert(err, checker.IsNil)
time.Sleep(2 * time.Second)
_, err = s.CmdWithError("inspect", repoName)
c.Assert(err, checker.NotNil, check.Commentf("image was pulled after client disconnected"))
}
func (s *DockerRegistryAuthHtpasswdSuite) TestPullNoCredentialsNotFound(c *check.C) {
// we don't care about the actual image, we just want to see image not found
// because that means v2 call returned 401 and we fell back to v1 which usually
// gives a 404 (in this case the test registry doesn't handle v1 at all)
out, _, err := dockerCmdWithError("pull", privateRegistryURL+"/busybox")
c.Assert(err, check.NotNil, check.Commentf(out))
c.Assert(out, checker.Contains, "Error: image busybox:latest not found")
}
// Regression test for https://github.com/docker/docker/issues/26429
func (s *DockerSuite) TestPullLinuxImageFailsOnWindows(c *check.C) {
testRequires(c, DaemonIsWindows, Network)
_, _, err := dockerCmdWithError("pull", "ubuntu")
c.Assert(err.Error(), checker.Contains, "cannot be used on this platform")
}