169 lines
6.9 KiB
Go
169 lines
6.9 KiB
Go
package main
|
|
|
|
import (
|
|
"regexp"
|
|
"strings"
|
|
"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"))
|
|
if splitImg := strings.Split(img, "\n"); len(splitImg) != 2 {
|
|
c.Fatalf("expected only two lines in the output of `docker images`, got %d", len(splitImg))
|
|
} else if re := regexp.MustCompile(`^hello-world\s+latest`); !re.Match([]byte(splitImg[1])) {
|
|
c.Fatal("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)
|
|
for _, e := range []struct {
|
|
Repo string
|
|
Alias string
|
|
}{
|
|
{"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"},
|
|
} {
|
|
out, err := s.CmdWithError("pull", e.Alias)
|
|
c.Assert(err, checker.NotNil, check.Commentf("expected non-zero exit status when pulling non-existing image: %s", out))
|
|
// Hub returns 401 rather than 404 for nonexistent library/ repos.
|
|
c.Assert(out, checker.Contains, "unauthorized: access to the requested resource is not authorized", check.Commentf("expected unauthorized error message"))
|
|
}
|
|
}
|
|
|
|
// 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)
|
|
s.Cmd(c, "pull", "hello-world")
|
|
defer deleteImages("hello-world")
|
|
|
|
for _, i := 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",
|
|
} {
|
|
out := s.Cmd(c, "pull", i)
|
|
c.Assert(out, checker.Contains, "Image is up to date for hello-world:latest")
|
|
}
|
|
|
|
// We should have a single entry in images.
|
|
img := strings.TrimSpace(s.Cmd(c, "images"))
|
|
if splitImg := strings.Split(img, "\n"); len(splitImg) != 2 {
|
|
c.Fatalf("expected only two lines in the output of `docker images`, got %d", len(splitImg))
|
|
} else if re := regexp.MustCompile(`^hello-world\s+latest`); !re.Match([]byte(splitImg[1])) {
|
|
c.Fatal("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, check.Commentf("expected a single entry in images\n%v", outImageCmd))
|
|
|
|
s.Cmd(c, "pull", "--all-tags=true", "busybox")
|
|
outImageAllTagCmd := s.Cmd(c, "images", "busybox")
|
|
if linesCount := strings.Count(outImageAllTagCmd, "\n"); linesCount <= 2 {
|
|
c.Fatalf("pulling all tags should provide more images, got %d", linesCount-1)
|
|
}
|
|
|
|
// 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)
|
|
if _, err := s.CmdWithError("inspect", repoName); err == nil {
|
|
c.Fatal("image was pulled after client disconnected")
|
|
}
|
|
}
|