/vendor/k8s.io/kubernetes/test/e2e/downward_api.go
Go | 211 lines | 178 code | 18 blank | 15 comment | 0 complexity | c4423e8c69382f2e9df351c708ccd5cc MD5 | raw file
- /*
- Copyright 2015 The Kubernetes Authors All rights reserved.
- 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
- import (
- "fmt"
- "k8s.io/kubernetes/pkg/api"
- "k8s.io/kubernetes/pkg/api/resource"
- "k8s.io/kubernetes/pkg/util"
- "k8s.io/kubernetes/test/e2e/framework"
- . "github.com/onsi/ginkgo"
- )
- var _ = framework.KubeDescribe("Downward API", func() {
- f := framework.NewDefaultFramework("downward-api")
- It("should provide pod name and namespace as env vars [Conformance]", func() {
- podName := "downward-api-" + string(util.NewUUID())
- 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",
- },
- },
- },
- }
- expectations := []string{
- fmt.Sprintf("POD_NAME=%v", podName),
- fmt.Sprintf("POD_NAMESPACE=%v", f.Namespace.Name),
- }
- testDownwardAPI(f, 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(f, podName, env, expectations)
- })
- It("should provide container's limits.cpu/memory and requests.cpu/memory as env vars", func() {
- podName := "downward-api-" + string(util.NewUUID())
- env := []api.EnvVar{
- {
- Name: "CPU_LIMIT",
- ValueFrom: &api.EnvVarSource{
- ResourceFieldRef: &api.ResourceFieldSelector{
- Resource: "limits.cpu",
- },
- },
- },
- {
- Name: "MEMORY_LIMIT",
- ValueFrom: &api.EnvVarSource{
- ResourceFieldRef: &api.ResourceFieldSelector{
- Resource: "limits.memory",
- },
- },
- },
- {
- Name: "CPU_REQUEST",
- ValueFrom: &api.EnvVarSource{
- ResourceFieldRef: &api.ResourceFieldSelector{
- Resource: "requests.cpu",
- },
- },
- },
- {
- Name: "MEMORY_REQUEST",
- ValueFrom: &api.EnvVarSource{
- ResourceFieldRef: &api.ResourceFieldSelector{
- Resource: "requests.memory",
- },
- },
- },
- }
- expectations := []string{
- fmt.Sprintf("CPU_LIMIT=2"),
- fmt.Sprintf("MEMORY_LIMIT=67108864"),
- fmt.Sprintf("CPU_REQUEST=1"),
- fmt.Sprintf("MEMORY_REQUEST=33554432"),
- }
- testDownwardAPI(f, podName, env, expectations)
- })
- It("should provide default limits.cpu/memory from node capacity", func() {
- podName := "downward-api-" + string(util.NewUUID())
- env := []api.EnvVar{
- {
- Name: "CPU_LIMIT",
- ValueFrom: &api.EnvVarSource{
- ResourceFieldRef: &api.ResourceFieldSelector{
- Resource: "limits.cpu",
- },
- },
- },
- {
- Name: "MEMORY_LIMIT",
- ValueFrom: &api.EnvVarSource{
- ResourceFieldRef: &api.ResourceFieldSelector{
- Resource: "limits.memory",
- },
- },
- },
- }
- expectations := []string{
- fmt.Sprintf("CPU_LIMIT=[1-9]"),
- fmt.Sprintf("MEMORY_LIMIT=[1-9]"),
- }
- 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:1.24",
- Command: []string{"sh", "-c", "env"},
- Env: env,
- },
- },
- RestartPolicy: api.RestartPolicyNever,
- },
- }
- testDownwardAPIUsingPod(f, pod, env, expectations)
- })
- })
- func testDownwardAPI(f *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:1.24",
- Command: []string{"sh", "-c", "env"},
- Resources: api.ResourceRequirements{
- Requests: api.ResourceList{
- api.ResourceCPU: resource.MustParse("250m"),
- api.ResourceMemory: resource.MustParse("32Mi"),
- },
- Limits: api.ResourceList{
- api.ResourceCPU: resource.MustParse("1250m"),
- api.ResourceMemory: resource.MustParse("64Mi"),
- },
- },
- Env: env,
- },
- },
- RestartPolicy: api.RestartPolicyNever,
- },
- }
- testDownwardAPIUsingPod(f, pod, env, expectations)
- }
- func testDownwardAPIUsingPod(f *framework.Framework, pod *api.Pod, env []api.EnvVar, expectations []string) {
- f.TestContainerOutputRegexp("downward api env vars", pod, 0, expectations)
- }