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util.go
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util.go
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/*
Copyright 2014 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 framework
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"io/ioutil"
"math/rand"
"net"
"net/http"
"net/url"
"os"
"os/exec"
"path"
"path/filepath"
"regexp"
goruntime "runtime"
"sort"
"strconv"
"strings"
"sync"
"syscall"
"text/tabwriter"
"time"
"github.com/golang/glog"
"golang.org/x/crypto/ssh"
"golang.org/x/net/websocket"
"google.golang.org/api/googleapi"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
gomegatypes "github.com/onsi/gomega/types"
batch "k8s.io/api/batch/v1"
"k8s.io/api/core/v1"
extensions "k8s.io/api/extensions/v1beta1"
apierrs "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/uuid"
"k8s.io/apimachinery/pkg/util/wait"
utilyaml "k8s.io/apimachinery/pkg/util/yaml"
"k8s.io/apimachinery/pkg/watch"
"k8s.io/client-go/discovery"
"k8s.io/client-go/dynamic"
restclient "k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/testapi"
podutil "k8s.io/kubernetes/pkg/api/v1/pod"
appsinternal "k8s.io/kubernetes/pkg/apis/apps"
batchinternal "k8s.io/kubernetes/pkg/apis/batch"
extensionsinternal "k8s.io/kubernetes/pkg/apis/extensions"
"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
"k8s.io/kubernetes/pkg/client/conditions"
"k8s.io/kubernetes/pkg/cloudprovider/providers/azure"
gcecloud "k8s.io/kubernetes/pkg/cloudprovider/providers/gce"
"k8s.io/kubernetes/pkg/controller"
nodectlr "k8s.io/kubernetes/pkg/controller/node"
"k8s.io/kubernetes/pkg/kubectl"
"k8s.io/kubernetes/pkg/kubelet/util/format"
"k8s.io/kubernetes/pkg/master/ports"
sshutil "k8s.io/kubernetes/pkg/ssh"
"k8s.io/kubernetes/pkg/util/system"
taintutils "k8s.io/kubernetes/pkg/util/taints"
utilversion "k8s.io/kubernetes/pkg/util/version"
"k8s.io/kubernetes/plugin/pkg/scheduler/algorithm/predicates"
"k8s.io/kubernetes/plugin/pkg/scheduler/schedulercache"
"k8s.io/kubernetes/test/e2e/framework/ginkgowrapper"
testutil "k8s.io/kubernetes/test/utils"
imageutils "k8s.io/kubernetes/test/utils/image"
uexec "k8s.io/utils/exec"
)
const (
// How long to wait for the pod to be listable
PodListTimeout = time.Minute
// Initial pod start can be delayed O(minutes) by slow docker pulls
// TODO: Make this 30 seconds once #4566 is resolved.
PodStartTimeout = 5 * time.Minute
// If there are any orphaned namespaces to clean up, this test is running
// on a long lived cluster. A long wait here is preferably to spurious test
// failures caused by leaked resources from a previous test run.
NamespaceCleanupTimeout = 15 * time.Minute
// Some pods can take much longer to get ready due to volume attach/detach latency.
slowPodStartTimeout = 15 * time.Minute
// How long to wait for a service endpoint to be resolvable.
ServiceStartTimeout = 1 * time.Minute
// How often to Poll pods, nodes and claims.
Poll = 2 * time.Second
pollShortTimeout = 1 * time.Minute
pollLongTimeout = 5 * time.Minute
// service accounts are provisioned after namespace creation
// a service account is required to support pod creation in a namespace as part of admission control
ServiceAccountProvisionTimeout = 2 * time.Minute
// How long to try single API calls (like 'get' or 'list'). Used to prevent
// transient failures from failing tests.
// TODO: client should not apply this timeout to Watch calls. Increased from 30s until that is fixed.
SingleCallTimeout = 5 * time.Minute
// How long nodes have to be "ready" when a test begins. They should already
// be "ready" before the test starts, so this is small.
NodeReadyInitialTimeout = 20 * time.Second
// How long pods have to be "ready" when a test begins.
PodReadyBeforeTimeout = 5 * time.Minute
// How long pods have to become scheduled onto nodes
podScheduledBeforeTimeout = PodListTimeout + (20 * time.Second)
podRespondingTimeout = 15 * time.Minute
ServiceRespondingTimeout = 2 * time.Minute
EndpointRegisterTimeout = time.Minute
// How long claims have to become dynamically provisioned
ClaimProvisionTimeout = 5 * time.Minute
// When these values are updated, also update cmd/kubelet/app/options/options.go
currentPodInfraContainerImageName = "gcr.io/google_containers/pause"
currentPodInfraContainerImageVersion = "3.0"
// How long each node is given during a process that restarts all nodes
// before the test is considered failed. (Note that the total time to
// restart all nodes will be this number times the number of nodes.)
RestartPerNodeTimeout = 5 * time.Minute
// How often to Poll the statues of a restart.
RestartPoll = 20 * time.Second
// How long a node is allowed to become "Ready" after it is restarted before
// the test is considered failed.
RestartNodeReadyAgainTimeout = 5 * time.Minute
// How long a pod is allowed to become "running" and "ready" after a node
// restart before test is considered failed.
RestartPodReadyAgainTimeout = 5 * time.Minute
// Number of objects that gc can delete in a second.
// GC issues 2 requestes for single delete.
gcThroughput = 10
// Minimal number of nodes for the cluster to be considered large.
largeClusterThreshold = 100
// TODO(justinsb): Avoid hardcoding this.
awsMasterIP = "172.20.0.9"
// ssh port
sshPort = "22"
// ImagePrePullingTimeout is the time we wait for the e2e-image-puller
// static pods to pull the list of seeded images. If they don't pull
// images within this time we simply log their output and carry on
// with the tests.
ImagePrePullingTimeout = 5 * time.Minute
)
var (
BusyBoxImage = imageutils.GetBusyBoxImage()
// Label allocated to the image puller static pod that runs on each node
// before e2es.
ImagePullerLabels = map[string]string{"name": "e2e-image-puller"}
// For parsing Kubectl version for version-skewed testing.
gitVersionRegexp = regexp.MustCompile("GitVersion:\"(v.+?)\"")
// Slice of regexps for names of pods that have to be running to consider a Node "healthy"
requiredPerNodePods = []*regexp.Regexp{
regexp.MustCompile(".*kube-proxy.*"),
regexp.MustCompile(".*fluentd-elasticsearch.*"),
regexp.MustCompile(".*node-problem-detector.*"),
}
// Serve hostname image name
ServeHostnameImage = imageutils.GetE2EImage(imageutils.ServeHostname)
)
type Address struct {
internalIP string
externalIP string
hostname string
}
// GetServerArchitecture fetches the architecture of the cluster's apiserver.
func GetServerArchitecture(c clientset.Interface) string {
arch := ""
sVer, err := c.Discovery().ServerVersion()
if err != nil || sVer.Platform == "" {
// If we failed to get the server version for some reason, default to amd64.
arch = "amd64"
} else {
// Split the platform string into OS and Arch separately.
// The platform string may for example be "linux/amd64", "linux/arm" or "windows/amd64".
osArchArray := strings.Split(sVer.Platform, "/")
arch = osArchArray[1]
}
return arch
}
// GetPauseImageName fetches the pause image name for the same architecture as the apiserver.
func GetPauseImageName(c clientset.Interface) string {
return currentPodInfraContainerImageName + "-" + GetServerArchitecture(c) + ":" + currentPodInfraContainerImageVersion
}
// GetPauseImageNameForHostArch fetches the pause image name for the same architecture the test is running on.
// TODO: move this function to the test/utils
func GetPauseImageNameForHostArch() string {
return currentPodInfraContainerImageName + "-" + goruntime.GOARCH + ":" + currentPodInfraContainerImageVersion
}
// SubResource proxy should have been functional in v1.0.0, but SubResource
// proxy via tunneling is known to be broken in v1.0. See
// https://github.com/kubernetes/kubernetes/pull/15224#issuecomment-146769463
//
// TODO(ihmccreery): remove once we don't care about v1.0 anymore, (tentatively
// in v1.3).
var SubResourcePodProxyVersion = utilversion.MustParseSemantic("v1.1.0")
var SubResourceServiceAndNodeProxyVersion = utilversion.MustParseSemantic("v1.2.0")
func GetServicesProxyRequest(c clientset.Interface, request *restclient.Request) (*restclient.Request, error) {
subResourceProxyAvailable, err := ServerVersionGTE(SubResourceServiceAndNodeProxyVersion, c.Discovery())
if err != nil {
return nil, err
}
if subResourceProxyAvailable {
return request.Resource("services").SubResource("proxy"), nil
}
return request.Prefix("proxy").Resource("services"), nil
}
// unique identifier of the e2e run
var RunId = uuid.NewUUID()
type CreateTestingNSFn func(baseName string, c clientset.Interface, labels map[string]string) (*v1.Namespace, error)
type ContainerFailures struct {
status *v1.ContainerStateTerminated
Restarts int
}
func GetMasterHost() string {
masterUrl, err := url.Parse(TestContext.Host)
ExpectNoError(err)
return masterUrl.Host
}
func nowStamp() string {
return time.Now().Format(time.StampMilli)
}
func log(level string, format string, args ...interface{}) {
fmt.Fprintf(GinkgoWriter, nowStamp()+": "+level+": "+format+"\n", args...)
}
func Logf(format string, args ...interface{}) {
log("INFO", format, args...)
}
func Failf(format string, args ...interface{}) {
FailfWithOffset(1, format, args...)
}
// FailfWithOffset calls "Fail" and logs the error at "offset" levels above its caller
// (for example, for call chain f -> g -> FailfWithOffset(1, ...) error would be logged for "f").
func FailfWithOffset(offset int, format string, args ...interface{}) {
msg := fmt.Sprintf(format, args...)
log("INFO", msg)
ginkgowrapper.Fail(nowStamp()+": "+msg, 1+offset)
}
func Skipf(format string, args ...interface{}) {
msg := fmt.Sprintf(format, args...)
log("INFO", msg)
ginkgowrapper.Skip(nowStamp() + ": " + msg)
}
func SkipUnlessNodeCountIsAtLeast(minNodeCount int) {
if TestContext.CloudConfig.NumNodes < minNodeCount {
Skipf("Requires at least %d nodes (not %d)", minNodeCount, TestContext.CloudConfig.NumNodes)
}
}
func SkipUnlessNodeCountIsAtMost(maxNodeCount int) {
if TestContext.CloudConfig.NumNodes > maxNodeCount {
Skipf("Requires at most %d nodes (not %d)", maxNodeCount, TestContext.CloudConfig.NumNodes)
}
}
func SkipUnlessAtLeast(value int, minValue int, message string) {
if value < minValue {
Skipf(message)
}
}
func SkipIfProviderIs(unsupportedProviders ...string) {
if ProviderIs(unsupportedProviders...) {
Skipf("Not supported for providers %v (found %s)", unsupportedProviders, TestContext.Provider)
}
}
func SkipUnlessSSHKeyPresent() {
if _, err := GetSigner(TestContext.Provider); err != nil {
Skipf("No SSH Key for provider %s: '%v'", TestContext.Provider, err)
}
}
func SkipUnlessProviderIs(supportedProviders ...string) {
if !ProviderIs(supportedProviders...) {
Skipf("Only supported for providers %v (not %s)", supportedProviders, TestContext.Provider)
}
}
func SkipUnlessMasterOSDistroIs(supportedMasterOsDistros ...string) {
if !MasterOSDistroIs(supportedMasterOsDistros...) {
Skipf("Only supported for master OS distro %v (not %s)", supportedMasterOsDistros, TestContext.MasterOSDistro)
}
}
func SkipUnlessNodeOSDistroIs(supportedNodeOsDistros ...string) {
if !NodeOSDistroIs(supportedNodeOsDistros...) {
Skipf("Only supported for node OS distro %v (not %s)", supportedNodeOsDistros, TestContext.NodeOSDistro)
}
}
func SkipIfContainerRuntimeIs(runtimes ...string) {
for _, runtime := range runtimes {
if runtime == TestContext.ContainerRuntime {
Skipf("Not supported under container runtime %s", runtime)
}
}
}
func RunIfContainerRuntimeIs(runtimes ...string) {
for _, runtime := range runtimes {
if runtime == TestContext.ContainerRuntime {
return
}
}
Skipf("Skipped because container runtime %q is not in %s", TestContext.ContainerRuntime, runtimes)
}
func RunIfSystemSpecNameIs(names ...string) {
for _, name := range names {
if name == TestContext.SystemSpecName {
return
}
}
Skipf("Skipped because system spec name %q is not in %v", TestContext.SystemSpecName, names)
}
func ProviderIs(providers ...string) bool {
for _, provider := range providers {
if strings.ToLower(provider) == strings.ToLower(TestContext.Provider) {
return true
}
}
return false
}
func MasterOSDistroIs(supportedMasterOsDistros ...string) bool {
for _, distro := range supportedMasterOsDistros {
if strings.ToLower(distro) == strings.ToLower(TestContext.MasterOSDistro) {
return true
}
}
return false
}
func NodeOSDistroIs(supportedNodeOsDistros ...string) bool {
for _, distro := range supportedNodeOsDistros {
if strings.ToLower(distro) == strings.ToLower(TestContext.NodeOSDistro) {
return true
}
}
return false
}
func ProxyMode(f *Framework) (string, error) {
pod := &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: "kube-proxy-mode-detector",
Namespace: f.Namespace.Name,
},
Spec: v1.PodSpec{
HostNetwork: true,
Containers: []v1.Container{
{
Name: "detector",
Image: imageutils.GetE2EImage(imageutils.Net),
Command: []string{"/bin/sleep", "3600"},
},
},
},
}
f.PodClient().CreateSync(pod)
defer f.PodClient().DeleteSync(pod.Name, &metav1.DeleteOptions{}, DefaultPodDeletionTimeout)
cmd := "curl -q -s --connect-timeout 1 http://localhost:10249/proxyMode"
stdout, err := RunHostCmd(pod.Namespace, pod.Name, cmd)
if err != nil {
return "", err
}
Logf("ProxyMode: %s", stdout)
return stdout, nil
}
func SkipUnlessServerVersionGTE(v *utilversion.Version, c discovery.ServerVersionInterface) {
gte, err := ServerVersionGTE(v, c)
if err != nil {
Failf("Failed to get server version: %v", err)
}
if !gte {
Skipf("Not supported for server versions before %q", v)
}
}
func SkipIfMissingResource(clientPool dynamic.ClientPool, gvr schema.GroupVersionResource, namespace string) {
dynamicClient, err := clientPool.ClientForGroupVersionResource(gvr)
if err != nil {
Failf("Unexpected error getting dynamic client for %v: %v", gvr.GroupVersion(), err)
}
apiResource := metav1.APIResource{Name: gvr.Resource, Namespaced: true}
_, err = dynamicClient.Resource(&apiResource, namespace).List(metav1.ListOptions{})
if err != nil {
// not all resources support list, so we ignore those
if apierrs.IsMethodNotSupported(err) || apierrs.IsNotFound(err) || apierrs.IsForbidden(err) {
Skipf("Could not find %s resource, skipping test: %#v", gvr, err)
}
Failf("Unexpected error getting %v: %v", gvr, err)
}
}
// ProvidersWithSSH are those providers where each node is accessible with SSH
var ProvidersWithSSH = []string{"gce", "gke", "aws", "local"}
type podCondition func(pod *v1.Pod) (bool, error)
// logPodStates logs basic info of provided pods for debugging.
func logPodStates(pods []v1.Pod) {
// Find maximum widths for pod, node, and phase strings for column printing.
maxPodW, maxNodeW, maxPhaseW, maxGraceW := len("POD"), len("NODE"), len("PHASE"), len("GRACE")
for i := range pods {
pod := &pods[i]
if len(pod.ObjectMeta.Name) > maxPodW {
maxPodW = len(pod.ObjectMeta.Name)
}
if len(pod.Spec.NodeName) > maxNodeW {
maxNodeW = len(pod.Spec.NodeName)
}
if len(pod.Status.Phase) > maxPhaseW {
maxPhaseW = len(pod.Status.Phase)
}
}
// Increase widths by one to separate by a single space.
maxPodW++
maxNodeW++
maxPhaseW++
maxGraceW++
// Log pod info. * does space padding, - makes them left-aligned.
Logf("%-[1]*[2]s %-[3]*[4]s %-[5]*[6]s %-[7]*[8]s %[9]s",
maxPodW, "POD", maxNodeW, "NODE", maxPhaseW, "PHASE", maxGraceW, "GRACE", "CONDITIONS")
for _, pod := range pods {
grace := ""
if pod.DeletionGracePeriodSeconds != nil {
grace = fmt.Sprintf("%ds", *pod.DeletionGracePeriodSeconds)
}
Logf("%-[1]*[2]s %-[3]*[4]s %-[5]*[6]s %-[7]*[8]s %[9]s",
maxPodW, pod.ObjectMeta.Name, maxNodeW, pod.Spec.NodeName, maxPhaseW, pod.Status.Phase, maxGraceW, grace, pod.Status.Conditions)
}
Logf("") // Final empty line helps for readability.
}
// errorBadPodsStates create error message of basic info of bad pods for debugging.
func errorBadPodsStates(badPods []v1.Pod, desiredPods int, ns, desiredState string, timeout time.Duration) string {
errStr := fmt.Sprintf("%d / %d pods in namespace %q are NOT in %s state in %v\n", len(badPods), desiredPods, ns, desiredState, timeout)
// Print bad pods info only if there are fewer than 10 bad pods
if len(badPods) > 10 {
return errStr + "There are too many bad pods. Please check log for details."
}
buf := bytes.NewBuffer(nil)
w := tabwriter.NewWriter(buf, 0, 0, 1, ' ', 0)
fmt.Fprintln(w, "POD\tNODE\tPHASE\tGRACE\tCONDITIONS")
for _, badPod := range badPods {
grace := ""
if badPod.DeletionGracePeriodSeconds != nil {
grace = fmt.Sprintf("%ds", *badPod.DeletionGracePeriodSeconds)
}
podInfo := fmt.Sprintf("%s\t%s\t%s\t%s\t%+v",
badPod.ObjectMeta.Name, badPod.Spec.NodeName, badPod.Status.Phase, grace, badPod.Status.Conditions)
fmt.Fprintln(w, podInfo)
}
w.Flush()
return errStr + buf.String()
}
// WaitForPodsSuccess waits till all labels matching the given selector enter
// the Success state. The caller is expected to only invoke this method once the
// pods have been created.
func WaitForPodsSuccess(c clientset.Interface, ns string, successPodLabels map[string]string, timeout time.Duration) error {
successPodSelector := labels.SelectorFromSet(successPodLabels)
start, badPods, desiredPods := time.Now(), []v1.Pod{}, 0
if wait.PollImmediate(30*time.Second, timeout, func() (bool, error) {
podList, err := c.Core().Pods(ns).List(metav1.ListOptions{LabelSelector: successPodSelector.String()})
if err != nil {
Logf("Error getting pods in namespace %q: %v", ns, err)
if IsRetryableAPIError(err) {
return false, nil
}
return false, err
}
if len(podList.Items) == 0 {
Logf("Waiting for pods to enter Success, but no pods in %q match label %v", ns, successPodLabels)
return true, nil
}
badPods = []v1.Pod{}
desiredPods = len(podList.Items)
for _, pod := range podList.Items {
if pod.Status.Phase != v1.PodSucceeded {
badPods = append(badPods, pod)
}
}
successPods := len(podList.Items) - len(badPods)
Logf("%d / %d pods in namespace %q are in Success state (%d seconds elapsed)",
successPods, len(podList.Items), ns, int(time.Since(start).Seconds()))
if len(badPods) == 0 {
return true, nil
}
return false, nil
}) != nil {
logPodStates(badPods)
LogPodsWithLabels(c, ns, successPodLabels, Logf)
return errors.New(errorBadPodsStates(badPods, desiredPods, ns, "SUCCESS", timeout))
}
return nil
}
// WaitForPodsRunningReady waits up to timeout to ensure that all pods in
// namespace ns are either running and ready, or failed but controlled by a
// controller. Also, it ensures that at least minPods are running and
// ready. It has separate behavior from other 'wait for' pods functions in
// that it requests the list of pods on every iteration. This is useful, for
// example, in cluster startup, because the number of pods increases while
// waiting. All pods that are in SUCCESS state are not counted.
//
// If ignoreLabels is not empty, pods matching this selector are ignored.
func WaitForPodsRunningReady(c clientset.Interface, ns string, minPods, allowedNotReadyPods int32, timeout time.Duration, ignoreLabels map[string]string) error {
ignoreSelector := labels.SelectorFromSet(ignoreLabels)
start := time.Now()
Logf("Waiting up to %v for all pods (need at least %d) in namespace '%s' to be running and ready",
timeout, minPods, ns)
wg := sync.WaitGroup{}
wg.Add(1)
var ignoreNotReady bool
badPods := []v1.Pod{}
desiredPods := 0
if wait.PollImmediate(Poll, timeout, func() (bool, error) {
// We get the new list of pods, replication controllers, and
// replica sets in every iteration because more pods come
// online during startup and we want to ensure they are also
// checked.
replicas, replicaOk := int32(0), int32(0)
rcList, err := c.Core().ReplicationControllers(ns).List(metav1.ListOptions{})
if err != nil {
Logf("Error getting replication controllers in namespace '%s': %v", ns, err)
if IsRetryableAPIError(err) {
return false, nil
}
return false, err
}
for _, rc := range rcList.Items {
replicas += *rc.Spec.Replicas
replicaOk += rc.Status.ReadyReplicas
}
rsList, err := c.Extensions().ReplicaSets(ns).List(metav1.ListOptions{})
if err != nil {
Logf("Error getting replication sets in namespace %q: %v", ns, err)
if IsRetryableAPIError(err) {
return false, nil
}
return false, err
}
for _, rs := range rsList.Items {
replicas += *rs.Spec.Replicas
replicaOk += rs.Status.ReadyReplicas
}
podList, err := c.Core().Pods(ns).List(metav1.ListOptions{})
if err != nil {
Logf("Error getting pods in namespace '%s': %v", ns, err)
if IsRetryableAPIError(err) {
return false, nil
}
return false, err
}
nOk := int32(0)
notReady := int32(0)
badPods = []v1.Pod{}
desiredPods = len(podList.Items)
for _, pod := range podList.Items {
if len(ignoreLabels) != 0 && ignoreSelector.Matches(labels.Set(pod.Labels)) {
continue
}
res, err := testutil.PodRunningReady(&pod)
switch {
case res && err == nil:
nOk++
case pod.Status.Phase == v1.PodSucceeded:
Logf("The status of Pod %s is Succeeded which is unexpected", pod.ObjectMeta.Name)
badPods = append(badPods, pod)
// it doesn't make sense to wait for this pod
return false, errors.New("unexpected Succeeded pod state")
case pod.Status.Phase != v1.PodFailed:
Logf("The status of Pod %s is %s (Ready = false), waiting for it to be either Running (with Ready = true) or Failed", pod.ObjectMeta.Name, pod.Status.Phase)
notReady++
badPods = append(badPods, pod)
default:
if metav1.GetControllerOf(&pod) == nil {
Logf("Pod %s is Failed, but it's not controlled by a controller", pod.ObjectMeta.Name)
badPods = append(badPods, pod)
}
//ignore failed pods that are controlled by some controller
}
}
Logf("%d / %d pods in namespace '%s' are running and ready (%d seconds elapsed)",
nOk, len(podList.Items), ns, int(time.Since(start).Seconds()))
Logf("expected %d pod replicas in namespace '%s', %d are Running and Ready.", replicas, ns, replicaOk)
if replicaOk == replicas && nOk >= minPods && len(badPods) == 0 {
return true, nil
}
ignoreNotReady = (notReady <= allowedNotReadyPods)
logPodStates(badPods)
return false, nil
}) != nil {
if !ignoreNotReady {
return errors.New(errorBadPodsStates(badPods, desiredPods, ns, "RUNNING and READY", timeout))
}
Logf("Number of not-ready pods is allowed.")
}
return nil
}
func kubectlLogPod(c clientset.Interface, pod v1.Pod, containerNameSubstr string, logFunc func(ftm string, args ...interface{})) {
for _, container := range pod.Spec.Containers {
if strings.Contains(container.Name, containerNameSubstr) {
// Contains() matches all strings if substr is empty
logs, err := GetPodLogs(c, pod.Namespace, pod.Name, container.Name)
if err != nil {
logs, err = getPreviousPodLogs(c, pod.Namespace, pod.Name, container.Name)
if err != nil {
logFunc("Failed to get logs of pod %v, container %v, err: %v", pod.Name, container.Name, err)
}
}
logFunc("Logs of %v/%v:%v on node %v", pod.Namespace, pod.Name, container.Name, pod.Spec.NodeName)
logFunc("%s : STARTLOG\n%s\nENDLOG for container %v:%v:%v", containerNameSubstr, logs, pod.Namespace, pod.Name, container.Name)
}
}
}
func LogFailedContainers(c clientset.Interface, ns string, logFunc func(ftm string, args ...interface{})) {
podList, err := c.Core().Pods(ns).List(metav1.ListOptions{})
if err != nil {
logFunc("Error getting pods in namespace '%s': %v", ns, err)
return
}
logFunc("Running kubectl logs on non-ready containers in %v", ns)
for _, pod := range podList.Items {
if res, err := testutil.PodRunningReady(&pod); !res || err != nil {
kubectlLogPod(c, pod, "", Logf)
}
}
}
func LogPodsWithLabels(c clientset.Interface, ns string, match map[string]string, logFunc func(ftm string, args ...interface{})) {
podList, err := c.Core().Pods(ns).List(metav1.ListOptions{LabelSelector: labels.SelectorFromSet(match).String()})
if err != nil {
logFunc("Error getting pods in namespace %q: %v", ns, err)
return
}
logFunc("Running kubectl logs on pods with labels %v in %v", match, ns)
for _, pod := range podList.Items {
kubectlLogPod(c, pod, "", logFunc)
}
}
func LogContainersInPodsWithLabels(c clientset.Interface, ns string, match map[string]string, containerSubstr string, logFunc func(ftm string, args ...interface{})) {
podList, err := c.Core().Pods(ns).List(metav1.ListOptions{LabelSelector: labels.SelectorFromSet(match).String()})
if err != nil {
Logf("Error getting pods in namespace %q: %v", ns, err)
return
}
for _, pod := range podList.Items {
kubectlLogPod(c, pod, containerSubstr, logFunc)
}
}
// DeleteNamespaces deletes all namespaces that match the given delete and skip filters.
// Filter is by simple strings.Contains; first skip filter, then delete filter.
// Returns the list of deleted namespaces or an error.
func DeleteNamespaces(c clientset.Interface, deleteFilter, skipFilter []string) ([]string, error) {
By("Deleting namespaces")
nsList, err := c.Core().Namespaces().List(metav1.ListOptions{})
Expect(err).NotTo(HaveOccurred())
var deleted []string
var wg sync.WaitGroup
OUTER:
for _, item := range nsList.Items {
if skipFilter != nil {
for _, pattern := range skipFilter {
if strings.Contains(item.Name, pattern) {
continue OUTER
}
}
}
if deleteFilter != nil {
var shouldDelete bool
for _, pattern := range deleteFilter {
if strings.Contains(item.Name, pattern) {
shouldDelete = true
break
}
}
if !shouldDelete {
continue OUTER
}
}
wg.Add(1)
deleted = append(deleted, item.Name)
go func(nsName string) {
defer wg.Done()
defer GinkgoRecover()
Expect(c.Core().Namespaces().Delete(nsName, nil)).To(Succeed())
Logf("namespace : %v api call to delete is complete ", nsName)
}(item.Name)
}
wg.Wait()
return deleted, nil
}
func WaitForNamespacesDeleted(c clientset.Interface, namespaces []string, timeout time.Duration) error {
By("Waiting for namespaces to vanish")
nsMap := map[string]bool{}
for _, ns := range namespaces {
nsMap[ns] = true
}
//Now POLL until all namespaces have been eradicated.
return wait.Poll(2*time.Second, timeout,
func() (bool, error) {
nsList, err := c.Core().Namespaces().List(metav1.ListOptions{})
if err != nil {
return false, err
}
for _, item := range nsList.Items {
if _, ok := nsMap[item.Name]; ok {
return false, nil
}
}
return true, nil
})
}
func waitForServiceAccountInNamespace(c clientset.Interface, ns, serviceAccountName string, timeout time.Duration) error {
w, err := c.Core().ServiceAccounts(ns).Watch(metav1.SingleObject(metav1.ObjectMeta{Name: serviceAccountName}))
if err != nil {
return err
}
_, err = watch.Until(timeout, w, conditions.ServiceAccountHasSecrets)
return err
}
func WaitForPodCondition(c clientset.Interface, ns, podName, desc string, timeout time.Duration, condition podCondition) error {
Logf("Waiting up to %v for pod %q in namespace %q to be %q", timeout, podName, ns, desc)
for start := time.Now(); time.Since(start) < timeout; time.Sleep(Poll) {
pod, err := c.Core().Pods(ns).Get(podName, metav1.GetOptions{})
if err != nil {
if apierrs.IsNotFound(err) {
Logf("Pod %q in namespace %q not found. Error: %v", podName, ns, err)
return err
}
Logf("Get pod %q in namespace %q failed, ignoring for %v. Error: %v", podName, ns, Poll, err)
continue
}
// log now so that current pod info is reported before calling `condition()`
Logf("Pod %q: Phase=%q, Reason=%q, readiness=%t. Elapsed: %v",
podName, pod.Status.Phase, pod.Status.Reason, testutil.PodReady(pod), time.Since(start))
if done, err := condition(pod); done {
if err == nil {
Logf("Pod %q satisfied condition %q", podName, desc)
}
return err
}
}
return fmt.Errorf("Gave up after waiting %v for pod %q to be %q", timeout, podName, desc)
}
// WaitForMatchPodsCondition finds match pods based on the input ListOptions.
// waits and checks if all match pods are in the given podCondition
func WaitForMatchPodsCondition(c clientset.Interface, opts metav1.ListOptions, desc string, timeout time.Duration, condition podCondition) error {
Logf("Waiting up to %v for matching pods' status to be %s", timeout, desc)
for start := time.Now(); time.Since(start) < timeout; time.Sleep(Poll) {
pods, err := c.Core().Pods(metav1.NamespaceAll).List(opts)
if err != nil {
return err
}
conditionNotMatch := []string{}
for _, pod := range pods.Items {
done, err := condition(&pod)
if done && err != nil {
return fmt.Errorf("Unexpected error: %v", err)
}
if !done {
conditionNotMatch = append(conditionNotMatch, format.Pod(&pod))
}
}
if len(conditionNotMatch) <= 0 {
return err
}
Logf("%d pods are not %s: %v", len(conditionNotMatch), desc, conditionNotMatch)
}
return fmt.Errorf("gave up waiting for matching pods to be '%s' after %v", desc, timeout)
}
// WaitForDefaultServiceAccountInNamespace waits for the default service account to be provisioned
// the default service account is what is associated with pods when they do not specify a service account
// as a result, pods are not able to be provisioned in a namespace until the service account is provisioned
func WaitForDefaultServiceAccountInNamespace(c clientset.Interface, namespace string) error {
return waitForServiceAccountInNamespace(c, namespace, "default", ServiceAccountProvisionTimeout)
}
// WaitForPersistentVolumePhase waits for a PersistentVolume to be in a specific phase or until timeout occurs, whichever comes first.
func WaitForPersistentVolumePhase(phase v1.PersistentVolumePhase, c clientset.Interface, pvName string, Poll, timeout time.Duration) error {
Logf("Waiting up to %v for PersistentVolume %s to have phase %s", timeout, pvName, phase)
for start := time.Now(); time.Since(start) < timeout; time.Sleep(Poll) {
pv, err := c.Core().PersistentVolumes().Get(pvName, metav1.GetOptions{})
if err != nil {
Logf("Get persistent volume %s in failed, ignoring for %v: %v", pvName, Poll, err)
continue
} else {
if pv.Status.Phase == phase {
Logf("PersistentVolume %s found and phase=%s (%v)", pvName, phase, time.Since(start))
return nil
} else {
Logf("PersistentVolume %s found but phase is %s instead of %s.", pvName, pv.Status.Phase, phase)
}
}
}
return fmt.Errorf("PersistentVolume %s not in phase %s within %v", pvName, phase, timeout)
}
// WaitForPersistentVolumeDeleted waits for a PersistentVolume to get deleted or until timeout occurs, whichever comes first.
func WaitForPersistentVolumeDeleted(c clientset.Interface, pvName string, Poll, timeout time.Duration) error {
Logf("Waiting up to %v for PersistentVolume %s to get deleted", timeout, pvName)
for start := time.Now(); time.Since(start) < timeout; time.Sleep(Poll) {
pv, err := c.Core().PersistentVolumes().Get(pvName, metav1.GetOptions{})
if err == nil {
Logf("PersistentVolume %s found and phase=%s (%v)", pvName, pv.Status.Phase, time.Since(start))
continue
} else {
if apierrs.IsNotFound(err) {
Logf("PersistentVolume %s was removed", pvName)
return nil
} else {
Logf("Get persistent volume %s in failed, ignoring for %v: %v", pvName, Poll, err)
}
}
}
return fmt.Errorf("PersistentVolume %s still exists within %v", pvName, timeout)
}
// WaitForPersistentVolumeClaimPhase waits for a PersistentVolumeClaim to be in a specific phase or until timeout occurs, whichever comes first.
func WaitForPersistentVolumeClaimPhase(phase v1.PersistentVolumeClaimPhase, c clientset.Interface, ns string, pvcName string, Poll, timeout time.Duration) error {
Logf("Waiting up to %v for PersistentVolumeClaim %s to have phase %s", timeout, pvcName, phase)
for start := time.Now(); time.Since(start) < timeout; time.Sleep(Poll) {
pvc, err := c.Core().PersistentVolumeClaims(ns).Get(pvcName, metav1.GetOptions{})
if err != nil {
Logf("Failed to get claim %q, retrying in %v. Error: %v", pvcName, Poll, err)
continue
} else {
if pvc.Status.Phase == phase {
Logf("PersistentVolumeClaim %s found and phase=%s (%v)", pvcName, phase, time.Since(start))
return nil
} else {
Logf("PersistentVolumeClaim %s found but phase is %s instead of %s.", pvcName, pvc.Status.Phase, phase)
}
}
}
return fmt.Errorf("PersistentVolumeClaim %s not in phase %s within %v", pvcName, phase, timeout)
}
// CreateTestingNS should be used by every test, note that we append a common prefix to the provided test name.
// Please see NewFramework instead of using this directly.
func CreateTestingNS(baseName string, c clientset.Interface, labels map[string]string) (*v1.Namespace, error) {
if labels == nil {
labels = map[string]string{}
}
labels["e2e-run"] = string(RunId)
namespaceObj := &v1.Namespace{
ObjectMeta: metav1.ObjectMeta{
GenerateName: fmt.Sprintf("e2e-tests-%v-", baseName),
Namespace: "",
Labels: labels,
},
Status: v1.NamespaceStatus{},
}
// Be robust about making the namespace creation call.
var got *v1.Namespace
if err := wait.PollImmediate(Poll, 30*time.Second, func() (bool, error) {
var err error
got, err = c.Core().Namespaces().Create(namespaceObj)
if err != nil {
Logf("Unexpected error while creating namespace: %v", err)
return false, nil
}
return true, nil
}); err != nil {
return nil, err
}
if TestContext.VerifyServiceAccount {
if err := WaitForDefaultServiceAccountInNamespace(c, got.Name); err != nil {
// Even if we fail to create serviceAccount in the namespace,
// we have successfully create a namespace.
// So, return the created namespace.
return got, err
}
}
return got, nil
}
// CheckTestingNSDeletedExcept checks whether all e2e based existing namespaces are in the Terminating state
// and waits until they are finally deleted. It ignores namespace skip.
func CheckTestingNSDeletedExcept(c clientset.Interface, skip string) error {
// TODO: Since we don't have support for bulk resource deletion in the API,
// while deleting a namespace we are deleting all objects from that namespace
// one by one (one deletion == one API call). This basically exposes us to
// throttling - currently controller-manager has a limit of max 20 QPS.
// Once #10217 is implemented and used in namespace-controller, deleting all
// object from a given namespace should be much faster and we will be able
// to lower this timeout.
// However, now Density test is producing ~26000 events and Load capacity test
// is producing ~35000 events, thus assuming there are no other requests it will
// take ~30 minutes to fully delete the namespace. Thus I'm setting it to 60
// minutes to avoid any timeouts here.
timeout := 60 * time.Minute
Logf("Waiting for terminating namespaces to be deleted...")
for start := time.Now(); time.Since(start) < timeout; time.Sleep(15 * time.Second) {
namespaces, err := c.Core().Namespaces().List(metav1.ListOptions{})
if err != nil {
Logf("Listing namespaces failed: %v", err)
continue
}
terminating := 0
for _, ns := range namespaces.Items {
if strings.HasPrefix(ns.ObjectMeta.Name, "e2e-tests-") && ns.ObjectMeta.Name != skip {