func validateLabels(a, b string) bool {
sA, eA := labels.Parse(a)
if eA != nil {
return false
}
sB, eB := labels.Parse(b)
if eB != nil {
return false
}
return sA.String() == sB.String()
}
func main() {
flag.Parse()
glog.Info("Elasticsearch discovery")
apiServer := *server
if apiServer == "" {
qingyuanService := os.Getenv("QINGYUAN_SERVICE_HOST")
if qingyuanService == "" {
glog.Fatalf("Please specify the QingYuan server with --server")
}
apiServer = fmt.Sprintf("https://%s:%s", qingyuanService, os.Getenv("QINGYUAN_SERVICE_PORT"))
}
glog.Infof("Server: %s", apiServer)
glog.Infof("Namespace: %q", *namespace)
glog.Infof("selector: %q", *selector)
config := client.Config{
Host: apiServer,
BearerToken: *token,
Insecure: true,
}
c, err := client.New(&config)
if err != nil {
glog.Fatalf("Failed to make client: %v", err)
}
l, err := labels.Parse(*selector)
if err != nil {
glog.Fatalf("Failed to parse selector %q: %v", *selector, err)
}
pods, err := c.Pods(*namespace).List(l, fields.Everything())
if err != nil {
glog.Fatalf("Failed to list pods: %v", err)
}
glog.Infof("Elasticsearch pods in namespace %s with selector %q", *namespace, *selector)
podIPs := []string{}
for i := range pods.Items {
p := &pods.Items[i]
for attempt := 0; attempt < 10; attempt++ {
glog.Infof("%d: %s PodIP: %s", i, p.Name, p.Status.PodIP)
if p.Status.PodIP != "" {
podIPs = append(podIPs, fmt.Sprintf(`"%s"`, p.Status.PodIP))
break
}
time.Sleep(1 * time.Second)
p, err = c.Pods(*namespace).Get(p.Name)
if err != nil {
glog.Warningf("Failed to get pod %s: %v", p.Name, err)
}
}
if p.Status.PodIP == "" {
glog.Warningf("Failed to obtain PodIP for %s", p.Name)
}
}
fmt.Printf("discovery.zen.ping.unicast.hosts: [%s]\n", strings.Join(podIPs, ", "))
}
func init() {
Scheme.AddDefaultingFuncs(
func(obj *ListOptions) {
obj.LabelSelector = labels.Everything()
obj.FieldSelector = fields.Everything()
},
func(obj *PodExecOptions) {
obj.Stderr = true
obj.Stdout = true
},
)
Scheme.AddConversionFuncs(
func(in *util.Time, out *util.Time, s conversion.Scope) error {
// Cannot deep copy these, because time.Time has unexported fields.
*out = *in
return nil
},
func(in *string, out *labels.Selector, s conversion.Scope) error {
selector, err := labels.Parse(*in)
if err != nil {
return err
}
*out = selector
return nil
},
func(in *string, out *fields.Selector, s conversion.Scope) error {
selector, err := fields.ParseSelector(*in)
if err != nil {
return err
}
*out = selector
return nil
},
func(in *labels.Selector, out *string, s conversion.Scope) error {
if *in == nil {
return nil
}
*out = (*in).String()
return nil
},
func(in *fields.Selector, out *string, s conversion.Scope) error {
if *in == nil {
return nil
}
*out = (*in).String()
return nil
},
func(in *resource.Quantity, out *resource.Quantity, s conversion.Scope) error {
// Cannot deep copy these, because inf.Dec has unexported fields.
*out = *in.Copy()
return nil
},
)
}
// FuzzerFor can randomly populate api objects that are destined for version.
func FuzzerFor(t *testing.T, version string, src rand.Source) *fuzz.Fuzzer {
f := fuzz.New().NilChance(.5).NumElements(1, 1)
if src != nil {
f.RandSource(src)
}
f.Funcs(
func(j *runtime.PluginBase, c fuzz.Continue) {
// Do nothing; this struct has only a Kind field and it must stay blank in memory.
},
func(j *runtime.TypeMeta, c fuzz.Continue) {
// We have to customize the randomization of TypeMetas because their
// APIVersion and Kind must remain blank in memory.
j.APIVersion = ""
j.Kind = ""
},
func(j *api.TypeMeta, c fuzz.Continue) {
// We have to customize the randomization of TypeMetas because their
// APIVersion and Kind must remain blank in memory.
j.APIVersion = ""
j.Kind = ""
},
func(j *api.ObjectMeta, c fuzz.Continue) {
j.Name = c.RandString()
j.ResourceVersion = strconv.FormatUint(c.RandUint64(), 10)
j.SelfLink = c.RandString()
j.UID = types.UID(c.RandString())
j.GenerateName = c.RandString()
var sec, nsec int64
c.Fuzz(&sec)
c.Fuzz(&nsec)
j.CreationTimestamp = util.Unix(sec, nsec).Rfc3339Copy()
},
func(j *api.ObjectReference, c fuzz.Continue) {
// We have to customize the randomization of TypeMetas because their
// APIVersion and Kind must remain blank in memory.
j.APIVersion = c.RandString()
j.Kind = c.RandString()
j.Namespace = c.RandString()
j.Name = c.RandString()
j.ResourceVersion = strconv.FormatUint(c.RandUint64(), 10)
j.FieldPath = c.RandString()
},
func(j *api.ListMeta, c fuzz.Continue) {
j.ResourceVersion = strconv.FormatUint(c.RandUint64(), 10)
j.SelfLink = c.RandString()
},
func(j *api.ListOptions, c fuzz.Continue) {
// TODO: add some parsing
j.LabelSelector, _ = labels.Parse("a=b")
j.FieldSelector, _ = fields.ParseSelector("a=b")
},
func(j *api.PodPhase, c fuzz.Continue) {
statuses := []api.PodPhase{api.PodPending, api.PodRunning, api.PodFailed, api.PodUnknown}
*j = statuses[c.Rand.Intn(len(statuses))]
},
func(j *api.PodTemplateSpec, c fuzz.Continue) {
// TODO: v1beta1/2 can't round trip a nil template correctly, fix by having v1beta1/2
// conversion compare converted object to nil via DeepEqual
j.ObjectMeta = api.ObjectMeta{}
c.Fuzz(&j.ObjectMeta)
j.ObjectMeta = api.ObjectMeta{Labels: j.ObjectMeta.Labels}
j.Spec = api.PodSpec{}
c.Fuzz(&j.Spec)
},
func(j *api.Binding, c fuzz.Continue) {
c.Fuzz(&j.ObjectMeta)
j.Target.Name = c.RandString()
},
func(j *api.ReplicationControllerSpec, c fuzz.Continue) {
c.FuzzNoCustom(j) // fuzz self without calling this function again
//j.TemplateRef = nil // this is required for round trip
},
func(j *api.ReplicationControllerStatus, c fuzz.Continue) {
// only replicas round trips
j.Replicas = int(c.RandUint64())
},
func(j *api.List, c fuzz.Continue) {
c.FuzzNoCustom(j) // fuzz self without calling this function again
// TODO: uncomment when round trip starts from a versioned object
if false { //j.Items == nil {
j.Items = []runtime.Object{}
}
},
func(j *runtime.Object, c fuzz.Continue) {
// TODO: uncomment when round trip starts from a versioned object
if true { //c.RandBool() {
*j = &runtime.Unknown{
TypeMeta: runtime.TypeMeta{Kind: "Something", APIVersion: "unknown"},
RawJSON: []byte(`{"apiVersion":"unknown","kind":"Something","someKey":"someValue"}`),
}
} else {
types := []runtime.Object{&api.Pod{}, &api.ReplicationController{}}
t := types[c.Rand.Intn(len(types))]
c.Fuzz(t)
*j = t
}
},
func(pb map[docker.Port][]docker.PortBinding, c fuzz.Continue) {
// This is necessary because keys with nil values get omitted.
// TODO: Is this a bug?
pb[docker.Port(c.RandString())] = []docker.PortBinding{
{c.RandString(), c.RandString()},
{c.RandString(), c.RandString()},
}
},
func(pm map[string]docker.PortMapping, c fuzz.Continue) {
// This is necessary because keys with nil values get omitted.
// TODO: Is this a bug?
pm[c.RandString()] = docker.PortMapping{
c.RandString(): c.RandString(),
}
},
func(q *resource.Quantity, c fuzz.Continue) {
// Real Quantity fuzz testing is done elsewhere;
// this limited subset of functionality survives
// round-tripping to v1beta1/2.
q.Amount = &inf.Dec{}
q.Format = resource.DecimalExponent
//q.Amount.SetScale(inf.Scale(-c.Intn(12)))
q.Amount.SetUnscaled(c.Int63n(1000))
},
func(p *api.PullPolicy, c fuzz.Continue) {
policies := []api.PullPolicy{api.PullAlways, api.PullNever, api.PullIfNotPresent}
*p = policies[c.Rand.Intn(len(policies))]
},
func(rp *api.RestartPolicy, c fuzz.Continue) {
policies := []api.RestartPolicy{api.RestartPolicyAlways, api.RestartPolicyNever, api.RestartPolicyOnFailure}
*rp = policies[c.Rand.Intn(len(policies))]
},
func(vs *api.VolumeSource, c fuzz.Continue) {
// Exactly one of the fields must be set.
v := reflect.ValueOf(vs).Elem()
i := int(c.RandUint64() % uint64(v.NumField()))
v = v.Field(i).Addr()
// Use a new fuzzer which cannot populate nil to ensure one field will be set.
fuzz.New().NilChance(0).NumElements(1, 1).Fuzz(v.Interface())
},
func(d *api.DNSPolicy, c fuzz.Continue) {
policies := []api.DNSPolicy{api.DNSClusterFirst, api.DNSDefault}
*d = policies[c.Rand.Intn(len(policies))]
},
func(p *api.Protocol, c fuzz.Continue) {
protocols := []api.Protocol{api.ProtocolTCP, api.ProtocolUDP}
*p = protocols[c.Rand.Intn(len(protocols))]
},
func(p *api.ServiceAffinity, c fuzz.Continue) {
types := []api.ServiceAffinity{api.ServiceAffinityClientIP, api.ServiceAffinityNone}
*p = types[c.Rand.Intn(len(types))]
},
func(p *api.ServiceType, c fuzz.Continue) {
types := []api.ServiceType{api.ServiceTypeClusterIP, api.ServiceTypeNodePort, api.ServiceTypeLoadBalancer}
*p = types[c.Rand.Intn(len(types))]
},
func(ct *api.Container, c fuzz.Continue) {
c.FuzzNoCustom(ct) // fuzz self without calling this function again
ct.TerminationMessagePath = "/" + ct.TerminationMessagePath // Must be non-empty
},
func(ev *api.EnvVar, c fuzz.Continue) {
ev.Name = c.RandString()
if c.RandBool() {
ev.Value = c.RandString()
} else {
ev.ValueFrom = &api.EnvVarSource{}
ev.ValueFrom.FieldRef = &api.ObjectFieldSelector{}
versions := []string{"v1beta1", "v1beta2", "v1beta3"}
ev.ValueFrom.FieldRef.APIVersion = versions[c.Rand.Intn(len(versions))]
ev.ValueFrom.FieldRef.FieldPath = c.RandString()
}
},
func(sc *api.SecurityContext, c fuzz.Continue) {
c.FuzzNoCustom(sc) // fuzz self without calling this function again
priv := c.RandBool()
sc.Privileged = &priv
sc.Capabilities = &api.Capabilities{
Add: make([]api.Capability, 0),
Drop: make([]api.Capability, 0),
}
c.Fuzz(&sc.Capabilities.Add)
c.Fuzz(&sc.Capabilities.Drop)
},
func(e *api.Event, c fuzz.Continue) {
c.FuzzNoCustom(e) // fuzz self without calling this function again
// Fix event count to 1, otherwise, if a v1beta1 or v1beta2 event has a count set arbitrarily, it's count is ignored
if e.FirstTimestamp.IsZero() {
e.Count = 1
} else {
c.Fuzz(&e.Count)
}
},
func(s *api.Secret, c fuzz.Continue) {
c.FuzzNoCustom(s) // fuzz self without calling this function again
s.Type = api.SecretTypeOpaque
},
func(pv *api.PersistentVolume, c fuzz.Continue) {
c.FuzzNoCustom(pv) // fuzz self without calling this function again
types := []api.PersistentVolumePhase{api.VolumeAvailable, api.VolumePending, api.VolumeBound, api.VolumeReleased, api.VolumeFailed}
pv.Status.Phase = types[c.Rand.Intn(len(types))]
pv.Status.Message = c.RandString()
reclamationPolicies := []api.PersistentVolumeReclaimPolicy{api.PersistentVolumeReclaimRecycle, api.PersistentVolumeReclaimRetain}
pv.Spec.PersistentVolumeReclaimPolicy = reclamationPolicies[c.Rand.Intn(len(reclamationPolicies))]
},
func(pvc *api.PersistentVolumeClaim, c fuzz.Continue) {
c.FuzzNoCustom(pvc) // fuzz self without calling this function again
types := []api.PersistentVolumeClaimPhase{api.ClaimBound, api.ClaimPending}
pvc.Status.Phase = types[c.Rand.Intn(len(types))]
},
func(s *api.NamespaceSpec, c fuzz.Continue) {
s.Finalizers = []api.FinalizerName{api.FinalizerQingYuan}
},
func(s *api.NamespaceStatus, c fuzz.Continue) {
s.Phase = api.NamespaceActive
},
func(http *api.HTTPGetAction, c fuzz.Continue) {
c.FuzzNoCustom(http) // fuzz self without calling this function again
http.Path = "/" + http.Path // can't be blank
},
func(ss *api.ServiceSpec, c fuzz.Continue) {
c.FuzzNoCustom(ss) // fuzz self without calling this function again
if len(ss.Ports) == 0 {
// There must be at least 1 port.
ss.Ports = append(ss.Ports, api.ServicePort{})
c.Fuzz(&ss.Ports[0])
}
for i := range ss.Ports {
switch ss.Ports[i].TargetPort.Kind {
case util.IntstrInt:
ss.Ports[i].TargetPort.IntVal = 1 + ss.Ports[i].TargetPort.IntVal%65535 // non-zero
case util.IntstrString:
ss.Ports[i].TargetPort.StrVal = "x" + ss.Ports[i].TargetPort.StrVal // non-empty
}
}
},
func(n *api.Node, c fuzz.Continue) {
c.FuzzNoCustom(n)
n.Spec.ExternalID = "external"
},
)
return f
}
func TestListNamespaceListSelection(t *testing.T) {
fakeEtcdClient, helper := newHelper(t)
key := etcdtest.AddPrefix("/namespaces")
fakeEtcdClient.Data[key] = tools.EtcdResponseWithError{
R: &etcd.Response{
Node: &etcd.Node{
Nodes: []*etcd.Node{
{Value: runtime.EncodeOrDie(latest.Codec, &api.Namespace{
ObjectMeta: api.ObjectMeta{Name: "foo"},
})},
{Value: runtime.EncodeOrDie(latest.Codec, &api.Namespace{
ObjectMeta: api.ObjectMeta{Name: "bar"},
})},
{Value: runtime.EncodeOrDie(latest.Codec, &api.Namespace{
ObjectMeta: api.ObjectMeta{Name: "baz"},
Status: api.NamespaceStatus{Phase: api.NamespaceTerminating},
})},
{Value: runtime.EncodeOrDie(latest.Codec, &api.Namespace{
ObjectMeta: api.ObjectMeta{
Name: "qux",
Labels: map[string]string{"label": "qux"},
},
})},
{Value: runtime.EncodeOrDie(latest.Codec, &api.Namespace{
ObjectMeta: api.ObjectMeta{Name: "zot"},
})},
},
},
},
}
storage, _, _ := NewStorage(helper)
ctx := api.NewContext()
table := []struct {
label, field string
expectedIDs util.StringSet
}{
{
expectedIDs: util.NewStringSet("foo", "bar", "baz", "qux", "zot"),
}, {
field: "name=zot",
expectedIDs: util.NewStringSet("zot"),
}, {
label: "label=qux",
expectedIDs: util.NewStringSet("qux"),
}, {
field: "status.phase=Terminating",
expectedIDs: util.NewStringSet("baz"),
},
}
for index, item := range table {
label, err := labels.Parse(item.label)
if err != nil {
t.Errorf("unexpected error: %v", err)
continue
}
field, err := fields.ParseSelector(item.field)
if err != nil {
t.Errorf("unexpected error: %v", err)
continue
}
namespacesObj, err := storage.List(ctx, label, field)
if err != nil {
t.Errorf("unexpected error: %v", err)
}
namespaces := namespacesObj.(*api.NamespaceList)
set := util.NewStringSet()
for i := range namespaces.Items {
set.Insert(namespaces.Items[i].Name)
}
if e, a := len(item.expectedIDs), len(set); e != a {
t.Errorf("%v: Expected %v, got %v", index, item.expectedIDs, set)
}
}
}
func TestListPodListSelection(t *testing.T) {
fakeEtcdClient, helper := newHelper(t)
ctx := api.NewDefaultContext()
storage := NewStorage(helper, nil).Pod
rootKey := etcdtest.AddPrefix("pods/default")
key := etcdtest.AddPrefix("pods/default/zot")
fakeEtcdClient.Data[rootKey] = tools.EtcdResponseWithError{
R: &etcd.Response{
Node: &etcd.Node{
Nodes: []*etcd.Node{
{Value: runtime.EncodeOrDie(latest.Codec, &api.Pod{
ObjectMeta: api.ObjectMeta{Name: "foo"},
})},
{Value: runtime.EncodeOrDie(latest.Codec, &api.Pod{
ObjectMeta: api.ObjectMeta{Name: "bar"},
Spec: api.PodSpec{NodeName: "barhost"},
})},
{Value: runtime.EncodeOrDie(latest.Codec, &api.Pod{
ObjectMeta: api.ObjectMeta{Name: "baz"},
Status: api.PodStatus{Phase: api.PodFailed},
})},
{Value: runtime.EncodeOrDie(latest.Codec, &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "qux",
Labels: map[string]string{"label": "qux"},
},
})},
{Value: runtime.EncodeOrDie(latest.Codec, &api.Pod{
ObjectMeta: api.ObjectMeta{Name: "zot"},
})},
},
},
},
}
fakeEtcdClient.Data[key] = tools.EtcdResponseWithError{
R: &etcd.Response{
Node: &etcd.Node{
Value: runtime.EncodeOrDie(latest.Codec, &api.Pod{
ObjectMeta: api.ObjectMeta{Name: "zot"},
}),
},
},
}
table := []struct {
label, field string
expectedIDs util.StringSet
}{
{
expectedIDs: util.NewStringSet("foo", "bar", "baz", "qux", "zot"),
}, {
field: "metadata.name=zot",
expectedIDs: util.NewStringSet("zot"),
}, {
label: "label=qux",
expectedIDs: util.NewStringSet("qux"),
}, {
field: "status.phase=Failed",
expectedIDs: util.NewStringSet("baz"),
}, {
field: "spec.nodeName=barhost",
expectedIDs: util.NewStringSet("bar"),
}, {
field: "spec.nodeName=",
expectedIDs: util.NewStringSet("foo", "baz", "qux", "zot"),
}, {
field: "spec.nodeName!=",
expectedIDs: util.NewStringSet("bar"),
},
}
for index, item := range table {
label, err := labels.Parse(item.label)
if err != nil {
t.Errorf("unexpected error: %v", err)
continue
}
field, err := fields.ParseSelector(item.field)
if err != nil {
t.Errorf("unexpected error: %v", err)
continue
}
podsObj, err := storage.List(ctx, label, field)
if err != nil {
t.Errorf("unexpected error: %v", err)
}
pods := podsObj.(*api.PodList)
set := util.NewStringSet()
for i := range pods.Items {
set.Insert(pods.Items[i].Name)
}
if e, a := len(item.expectedIDs), len(set); e != a {
t.Errorf("%v: Expected %v, got %v", index, item.expectedIDs, set)
}
/*for _, pod := range pods.Items {
if !item.expectedIDs.Has(pod.Name) {
t.Errorf("%v: Unexpected pod %v", index, pod.Name)
}
t.Logf("%v: Got pod Name: %v", index, pod.Name)
}*/
}
}
func TestListResourceQuotaListSelection(t *testing.T) {
fakeEtcdClient, helper := newHelper(t)
storage, _ := NewStorage(helper)
ctx := api.NewDefaultContext()
key := storage.Etcd.KeyRootFunc(ctx)
key = etcdtest.AddPrefix(key)
fakeEtcdClient.Data[key] = tools.EtcdResponseWithError{
R: &etcd.Response{
Node: &etcd.Node{
Nodes: []*etcd.Node{
{Value: runtime.EncodeOrDie(latest.Codec, &api.ResourceQuota{
ObjectMeta: api.ObjectMeta{Name: "foo"},
})},
{Value: runtime.EncodeOrDie(latest.Codec, &api.ResourceQuota{
ObjectMeta: api.ObjectMeta{
Name: "qux",
Labels: map[string]string{"label": "qux"},
},
})},
{Value: runtime.EncodeOrDie(latest.Codec, &api.ResourceQuota{
ObjectMeta: api.ObjectMeta{Name: "zot"},
})},
},
},
},
}
table := []struct {
label, field string
expectedIDs util.StringSet
}{
{
expectedIDs: util.NewStringSet("foo", "qux", "zot"),
}, {
field: "name=zot",
expectedIDs: util.NewStringSet("zot"),
}, {
label: "label=qux",
expectedIDs: util.NewStringSet("qux"),
},
}
for index, item := range table {
label, err := labels.Parse(item.label)
if err != nil {
t.Errorf("unexpected error: %v", err)
continue
}
field, err := fields.ParseSelector(item.field)
if err != nil {
t.Errorf("unexpected error: %v", err)
continue
}
resourcequotasObj, err := storage.List(ctx, label, field)
if err != nil {
t.Errorf("unexpected error: %v", err)
}
resourcequotas := resourcequotasObj.(*api.ResourceQuotaList)
set := util.NewStringSet()
for i := range resourcequotas.Items {
set.Insert(resourcequotas.Items[i].Name)
}
if e, a := len(item.expectedIDs), len(set); e != a {
t.Errorf("%v: Expected %v, got %v", index, item.expectedIDs, set)
}
}
}
func TestSelectionPredicate(t *testing.T) {
table := map[string]struct {
labelSelector, fieldSelector string
labels labels.Set
fields fields.Set
err error
shouldMatch bool
matchSingleKey string
}{
"A": {
labelSelector: "name=foo",
fieldSelector: "uid=12345",
labels: labels.Set{"name": "foo"},
fields: fields.Set{"uid": "12345"},
shouldMatch: true,
},
"B": {
labelSelector: "name=foo",
fieldSelector: "uid=12345",
labels: labels.Set{"name": "foo"},
fields: fields.Set{},
shouldMatch: false,
},
"C": {
labelSelector: "name=foo",
fieldSelector: "uid=12345",
labels: labels.Set{},
fields: fields.Set{"uid": "12345"},
shouldMatch: false,
},
"D": {
fieldSelector: "metadata.name=12345",
labels: labels.Set{},
fields: fields.Set{"metadata.name": "12345"},
shouldMatch: true,
matchSingleKey: "12345",
},
"error": {
labelSelector: "name=foo",
fieldSelector: "uid=12345",
err: errors.New("maybe this is a 'wrong object type' error"),
shouldMatch: false,
},
}
for name, item := range table {
parsedLabel, err := labels.Parse(item.labelSelector)
if err != nil {
panic(err)
}
parsedField, err := fields.ParseSelector(item.fieldSelector)
if err != nil {
panic(err)
}
sp := &SelectionPredicate{
Label: parsedLabel,
Field: parsedField,
GetAttrs: func(runtime.Object) (label labels.Set, field fields.Set, err error) {
return item.labels, item.fields, item.err
},
}
got, err := sp.Matches(&Ignored{})
if e, a := item.err, err; e != a {
t.Errorf("%v: expected %v, got %v", name, e, a)
continue
}
if e, a := item.shouldMatch, got; e != a {
t.Errorf("%v: expected %v, got %v", name, e, a)
}
if key := item.matchSingleKey; key != "" {
got, ok := sp.MatchesSingle()
if !ok {
t.Errorf("%v: expected single match", name)
}
if e, a := key, got; e != a {
t.Errorf("%v: expected %v, got %v", name, e, a)
}
}
}
}
