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Fix race condition for consuming podIP via downward API.

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This commit is contained in:
Andy Goldstein
2015-10-13 15:51:37 -04:00
parent 307fbeec3f
commit 7d02ea9bb7
9 changed files with 212 additions and 61 deletions
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97
test/e2e/downward_api.go
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@@ -30,46 +30,75 @@ var _ = Describe("Downward API", func() {
It("should provide pod name and namespace as env vars [Conformance]", func() {
podName := "downward-api-" + string(util.NewUUID())
pod := &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: podName,
Labels: map[string]string{"name": podName},
},
Spec: api.PodSpec{
Containers: []api.Container{
{
Name: "dapi-container",
Image: "gcr.io/google_containers/busybox",
Command: []string{"sh", "-c", "env"},
Env: []api.EnvVar{
{
Name: "POD_NAME",
ValueFrom: &api.EnvVarSource{
FieldRef: &api.ObjectFieldSelector{
APIVersion: "v1",
FieldPath: "metadata.name",
},
},
},
{
Name: "POD_NAMESPACE",
ValueFrom: &api.EnvVarSource{
FieldRef: &api.ObjectFieldSelector{
APIVersion: "v1",
FieldPath: "metadata.namespace",
},
},
},
},
env := []api.EnvVar{
{
Name: "POD_NAME",
ValueFrom: &api.EnvVarSource{
FieldRef: &api.ObjectFieldSelector{
APIVersion: "v1",
FieldPath: "metadata.name",
},
},
},
{
Name: "POD_NAMESPACE",
ValueFrom: &api.EnvVarSource{
FieldRef: &api.ObjectFieldSelector{
APIVersion: "v1",
FieldPath: "metadata.namespace",
},
},
RestartPolicy: api.RestartPolicyNever,
},
}
framework.TestContainerOutput("downward api env vars", pod, 0, []string{
expectations := []string{
fmt.Sprintf("POD_NAME=%v", podName),
fmt.Sprintf("POD_NAMESPACE=%v", framework.Namespace.Name),
})
}
testDownwardAPI(framework, podName, env, expectations)
})
It("should provide pod IP as an env var", func() {
podName := "downward-api-" + string(util.NewUUID())
env := []api.EnvVar{
{
Name: "POD_IP",
ValueFrom: &api.EnvVarSource{
FieldRef: &api.ObjectFieldSelector{
APIVersion: "v1",
FieldPath: "status.podIP",
},
},
},
}
expectations := []string{
"POD_IP=(?:\\d+)\\.(?:\\d+)\\.(?:\\d+)\\.(?:\\d+)",
}
testDownwardAPI(framework, podName, env, expectations)
})
})
func testDownwardAPI(framework *Framework, podName string, env []api.EnvVar, expectations []string) {
pod := &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: podName,
Labels: map[string]string{"name": podName},
},
Spec: api.PodSpec{
Containers: []api.Container{
{
Name: "dapi-container",
Image: "gcr.io/google_containers/busybox",
Command: []string{"sh", "-c", "env"},
Env: env,
},
},
RestartPolicy: api.RestartPolicyNever,
},
}
framework.TestContainerOutputRegexp("downward api env vars", pod, 0, expectations)
}