kubernetes/test/e2e_node/image_id_test.go
Solly Ross 135f87dc15 Kubelet: Use RepoDigest for ImageID when available
Previously, we used the docker config digest (also called "image ID"
by Docker) for the value of the `ImageID` field in the container status.
This was not particularly useful, since the config manifest is not
what's used to identify the image in a registry, which uses the manifest
digest instead.  Docker 1.12+ always populates the RepoDigests field
with the manifest digests, and Docker 1.10 and 1.11 populate it when
images are pulled by digest.

This commit changes `ImageID` to point to the the manifest digest when
available, using the prefix `docker-pullable://` (instead of
`docker://`)
2016-10-10 15:16:58 -04:00

67 lines
1.9 KiB
Go

/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package e2e_node
import (
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/kubelet/dockertools"
"k8s.io/kubernetes/test/e2e/framework"
"github.com/davecgh/go-spew/spew"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = framework.KubeDescribe("ImageID", func() {
busyBoxImage := "gcr.io/google_containers/busybox@sha256:4bdd623e848417d96127e16037743f0cd8b528c026e9175e22a84f639eca58ff"
f := framework.NewDefaultFramework("image-id-test")
It("should be set to the manifest digest (from RepoDigests) when available", func() {
podDesc := &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "pod-with-repodigest",
},
Spec: api.PodSpec{
Containers: []api.Container{{
Name: "test",
Image: busyBoxImage,
Command: []string{"sh"},
}},
RestartPolicy: api.RestartPolicyNever,
},
}
pod := f.PodClient().Create(podDesc)
framework.ExpectNoError(framework.WaitTimeoutForPodNoLongerRunningInNamespace(
f.Client, pod.Name, f.Namespace.Name, "", framework.PodStartTimeout))
runningPod, err := f.PodClient().Get(pod.Name)
framework.ExpectNoError(err)
status := runningPod.Status
if len(status.ContainerStatuses) == 0 {
framework.Failf("Unexpected pod status; %s", spew.Sdump(status))
return
}
Expect(status.ContainerStatuses[0].ImageID).To(Equal(dockertools.DockerPullablePrefix + busyBoxImage))
})
})