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Make sure tags and digests don’t collide

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Tags and digests are kept in the same storage. We want to make sure that they are completely separated - tags are something users set and digests can only be set by pull-by-digest code path.

Reverts #14664

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi
2015-10-12 14:20:11 -07:00
parent eebf88ffd3
commit d08ca5c2b6
3 changed files with 26 additions and 8 deletions
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integration-cli/docker_cli_tag_test.go
+19
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@@ -152,3 +152,22 @@ func (s *DockerSuite) TestTagOfficialNames(c *check.C) {
deleteImages("fooo/bar:latest")
}
}
// ensure tags can not match digests
func (s *DockerSuite) TestTagMatchesDigest(c *check.C) {
testRequires(c, DaemonIsLinux)
if err := pullImageIfNotExist("busybox:latest"); err != nil {
c.Fatal("couldn't find the busybox:latest image locally and failed to pull it")
}
digest := "busybox@sha256:abcdef76720241213f5303bda7704ec4c2ef75613173910a56fb1b6e20251507"
// test setting tag fails
_, _, err := dockerCmdWithError("tag", "-f", "busybox:latest", digest)
if err == nil {
c.Fatal("digest tag a name should have failed")
}
// check that no new image matches the digest
_, _, err = dockerCmdWithError("inspect", digest)
if err == nil {
c.Fatal("inspecting by digest should have failed")
}
}