func validateList(t *testing.T, lister Lister, user user.Info, expectedSet util.StringSet) {
namespaceList, err := lister.List(user)
if err != nil {
t.Errorf("Unexpected error %v", err)
}
results := util.StringSet{}
for _, namespace := range namespaceList.Items {
results.Insert(namespace.Name)
}
if results.Len() != expectedSet.Len() || !results.HasAll(expectedSet.List()...) {
t.Errorf("User %v, Expected: %v, Actual: %v", user.GetName(), expectedSet, results)
}
}
func TestHammerController(t *testing.T) {
// This test executes a bunch of requests through the fake source and
// controller framework to make sure there's no locking/threading
// errors. If an error happens, it should hang forever or trigger the
// race detector.
// source simulates an apiserver object endpoint.
source := framework.NewFakeControllerSource()
// Let's do threadsafe output to get predictable test results.
outputSetLock := sync.Mutex{}
// map of key to operations done on the key
outputSet := map[string][]string{}
recordFunc := func(eventType string, obj interface{}) {
key, err := framework.DeletionHandlingMetaNamespaceKeyFunc(obj)
if err != nil {
t.Errorf("something wrong with key: %v", err)
key = "oops something went wrong with the key"
}
// Record some output when items are deleted.
outputSetLock.Lock()
defer outputSetLock.Unlock()
outputSet[key] = append(outputSet[key], eventType)
}
// Make a controller which just logs all the changes it gets.
_, controller := framework.NewInformer(
source,
&api.Pod{},
time.Millisecond*100,
framework.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) { recordFunc("add", obj) },
UpdateFunc: func(oldObj, newObj interface{}) { recordFunc("update", newObj) },
DeleteFunc: func(obj interface{}) { recordFunc("delete", obj) },
},
)
// Run the controller and run it until we close stop.
stop := make(chan struct{})
go controller.Run(stop)
wg := sync.WaitGroup{}
const threads = 3
wg.Add(threads)
for i := 0; i < threads; i++ {
go func() {
defer wg.Done()
// Let's add a few objects to the source.
currentNames := util.StringSet{}
rs := rand.NewSource(rand.Int63())
f := fuzz.New().NilChance(.5).NumElements(0, 2).RandSource(rs)
r := rand.New(rs) // Mustn't use r and f concurrently!
for i := 0; i < 100; i++ {
var name string
var isNew bool
if currentNames.Len() == 0 || r.Intn(3) == 1 {
f.Fuzz(&name)
isNew = true
} else {
l := currentNames.List()
name = l[r.Intn(len(l))]
}
pod := &api.Pod{}
f.Fuzz(pod)
pod.ObjectMeta.Name = name
pod.ObjectMeta.Namespace = "default"
// Add, update, or delete randomly.
// Note that these pods are not valid-- the fake source doesn't
// call validation or perform any other checking.
if isNew {
currentNames.Insert(name)
source.Add(pod)
continue
}
switch r.Intn(2) {
case 0:
currentNames.Insert(name)
source.Modify(pod)
case 1:
currentNames.Delete(name)
source.Delete(pod)
}
}
}()
}
wg.Wait()
// Let's wait for the controller to finish processing the things we just added.
time.Sleep(100 * time.Millisecond)
close(stop)
outputSetLock.Lock()
t.Logf("got: %#v", outputSet)
}
func NewCmdPruneImages(f *clientcmd.Factory, parentName, name string, out io.Writer) *cobra.Command {
cfg := &pruneImagesConfig{
Confirm: false,
KeepYoungerThan: 60 * time.Minute,
TagRevisionsToKeep: 3,
}
cmd := &cobra.Command{
Use: name,
Short: "Remove unreferenced images",
Long: fmt.Sprintf(imagesLongDesc, parentName, name),
Run: func(cmd *cobra.Command, args []string) {
if len(args) > 0 {
glog.Fatal("No arguments are allowed to this command")
}
osClient, kClient, registryClient, err := getClients(f, cfg)
cmdutil.CheckErr(err)
allImages, err := osClient.Images().List(labels.Everything(), fields.Everything())
cmdutil.CheckErr(err)
allStreams, err := osClient.ImageStreams(kapi.NamespaceAll).List(labels.Everything(), fields.Everything())
cmdutil.CheckErr(err)
allPods, err := kClient.Pods(kapi.NamespaceAll).List(labels.Everything(), fields.Everything())
cmdutil.CheckErr(err)
allRCs, err := kClient.ReplicationControllers(kapi.NamespaceAll).List(labels.Everything())
cmdutil.CheckErr(err)
allBCs, err := osClient.BuildConfigs(kapi.NamespaceAll).List(labels.Everything(), fields.Everything())
cmdutil.CheckErr(err)
allBuilds, err := osClient.Builds(kapi.NamespaceAll).List(labels.Everything(), fields.Everything())
cmdutil.CheckErr(err)
allDCs, err := osClient.DeploymentConfigs(kapi.NamespaceAll).List(labels.Everything(), fields.Everything())
cmdutil.CheckErr(err)
pruner := prune.NewImagePruner(
cfg.KeepYoungerThan,
cfg.TagRevisionsToKeep,
allImages,
allStreams,
allPods,
allRCs,
allBCs,
allBuilds,
allDCs,
)
w := tabwriter.NewWriter(out, 10, 4, 3, ' ', 0)
defer w.Flush()
var streams util.StringSet
printImageHeader := true
describingImagePruneFunc := func(image *imageapi.Image) error {
if printImageHeader {
printImageHeader = false
fmt.Fprintf(w, "IMAGE\tSTREAMS")
}
if streams.Len() > 0 {
fmt.Fprintf(w, strings.Join(streams.List(), ", "))
}
fmt.Fprintf(w, "\n%s\t", image.Name)
streams = util.NewStringSet()
return nil
}
describingImageStreamPruneFunc := func(stream *imageapi.ImageStream, image *imageapi.Image) (*imageapi.ImageStream, error) {
streams.Insert(stream.Status.DockerImageRepository)
return stream, nil
}
printLayerHeader := true
describingLayerPruneFunc := func(registryURL, repo, layer string) error {
if printLayerHeader {
printLayerHeader = false
// need to print the remaining streams for the last image
if streams.Len() > 0 {
fmt.Fprintf(w, strings.Join(streams.List(), ", "))
}
fmt.Fprintf(w, "\n\nREGISTRY\tSTREAM\tLAYER\n")
}
fmt.Fprintf(w, "%s\t%s\t%s\n", registryURL, repo, layer)
return nil
}
var (
imagePruneFunc prune.ImagePruneFunc
imageStreamPruneFunc prune.ImageStreamPruneFunc
layerPruneFunc prune.LayerPruneFunc
blobPruneFunc prune.BlobPruneFunc
manifestPruneFunc prune.ManifestPruneFunc
)
switch cfg.Confirm {
case true:
imagePruneFunc = func(image *imageapi.Image) error {
describingImagePruneFunc(image)
return prune.DeletingImagePruneFunc(osClient.Images())(image)
}
imageStreamPruneFunc = func(stream *imageapi.ImageStream, image *imageapi.Image) (*imageapi.ImageStream, error) {
describingImageStreamPruneFunc(stream, image)
return prune.DeletingImageStreamPruneFunc(osClient)(stream, image)
}
layerPruneFunc = func(registryURL, repo, layer string) error {
describingLayerPruneFunc(registryURL, repo, layer)
return prune.DeletingLayerPruneFunc(registryClient)(registryURL, repo, layer)
}
blobPruneFunc = prune.DeletingBlobPruneFunc(registryClient)
manifestPruneFunc = prune.DeletingManifestPruneFunc(registryClient)
default:
fmt.Fprintln(os.Stderr, "Dry run enabled - no modifications will be made.")
imagePruneFunc = describingImagePruneFunc
imageStreamPruneFunc = describingImageStreamPruneFunc
layerPruneFunc = describingLayerPruneFunc
blobPruneFunc = func(registryURL, blob string) error {
return nil
}
manifestPruneFunc = func(registryURL, repo, manifest string) error {
return nil
}
}
if len(cfg.RegistryUrlOverride) > 0 {
originalLayerPruneFunc := layerPruneFunc
layerPruneFunc = func(registryURL, repo, layer string) error {
return originalLayerPruneFunc(cfg.RegistryUrlOverride, repo, layer)
}
originalBlobPruneFunc := blobPruneFunc
blobPruneFunc = func(registryURL, blob string) error {
return originalBlobPruneFunc(cfg.RegistryUrlOverride, blob)
}
originalManifestPruneFunc := manifestPruneFunc
manifestPruneFunc = func(registryURL, repo, manifest string) error {
return originalManifestPruneFunc(cfg.RegistryUrlOverride, repo, manifest)
}
}
pruner.Run(imagePruneFunc, imageStreamPruneFunc, layerPruneFunc, blobPruneFunc, manifestPruneFunc)
},
}
cmd.Flags().BoolVar(&cfg.Confirm, "confirm", cfg.Confirm, "Specify that image pruning should proceed. Defaults to false, displaying what would be deleted but not actually deleting anything.")
cmd.Flags().DurationVar(&cfg.KeepYoungerThan, "keep-younger-than", cfg.KeepYoungerThan, "Specify the minimum age of a build for it to be considered a candidate for pruning.")
cmd.Flags().IntVar(&cfg.TagRevisionsToKeep, "keep-tag-revisions", cfg.TagRevisionsToKeep, "Specify the number of image revisions for a tag in an image stream that will be preserved.")
cmd.Flags().StringVar(&cfg.CABundle, "certificate-authority", cfg.CABundle, "The path to a certificate authority bundle to use when communicating with the OpenShift-managed registries. Defaults to the certificate authority data from the current user's config file.")
cmd.Flags().StringVar(&cfg.RegistryUrlOverride, "registry-url", cfg.RegistryUrlOverride, "The address to use when contacting the registry, instead of using the default value. This is useful if you can't resolve or reach the registry (e.g.; the default is a cluster-internal URL) but you do have an alternative route that works.")
return cmd
}
