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LCOW: Spot fix for multi-os image pulling

Signed-off-by: John Howard <jhoward@microsoft.com>
This commit is contained in:
John Howard 2017-09-12 19:28:21 -07:00
parent 84144a8c66
commit b291f5a317
2 changed files with 14 additions and 3 deletions

View file

@ -709,11 +709,16 @@ func (p *v2Puller) pullManifestList(ctx context.Context, ref reference.Named, mf
logrus.Debugf("%s resolved to a manifestList object with %d entries; looking for a os/arch match", ref, len(mfstList.Manifests))
var manifestDigest digest.Digest
// TODO @jhowardmsft LCOW Support: Need to remove the hard coding in LCOW mode.
lookingForOS := runtime.GOOS
if system.LCOWSupported() {
lookingForOS = "linux"
}
for _, manifestDescriptor := range mfstList.Manifests {
// TODO(aaronl): The manifest list spec supports optional
// "features" and "variant" fields. These are not yet used.
// Once they are, their values should be interpreted here.
if manifestDescriptor.Platform.Architecture == runtime.GOARCH && manifestDescriptor.Platform.OS == runtime.GOOS {
if manifestDescriptor.Platform.Architecture == runtime.GOARCH && manifestDescriptor.Platform.OS == lookingForOS {
manifestDigest = manifestDescriptor.Digest
logrus.Debugf("found match for %s/%s with media type %s, digest %s", runtime.GOOS, runtime.GOARCH, manifestDescriptor.MediaType, manifestDigest.String())
break

View file

@ -3,6 +3,7 @@ package main
import (
"fmt"
"regexp"
"runtime"
"strings"
"sync"
"time"
@ -211,7 +212,12 @@ func (s *DockerHubPullSuite) TestPullAllTagsFromCentralRegistry(c *check.C) {
break
}
}
if runtime.GOARCH == "amd64" {
c.Assert(latestLine, checker.Not(checker.Equals), "", check.Commentf("no entry for busybox:latest found after pulling all tags"))
} else {
c.Assert(latestLine, checker.Not(checker.Contains), "", check.Commentf("no matching manifest"))
}
splitLatest := strings.Fields(latestLine)
splitCurrent := strings.Fields(splitOutImageCmd[1])
@ -273,7 +279,7 @@ func (s *DockerRegistryAuthHtpasswdSuite) TestPullNoCredentialsNotFound(c *check
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")
c.Assert(err.Error(), checker.Contains, "no matching manifest")
}
// Regression test for https://github.com/docker/docker/issues/28892