8ae203825b
Instead of endpoints being a flat list, it is now a list of "subsets"
where each is a struct of {Addresses, Ports}. To generate the list of
endpoints you need to take union of the Cartesian products of the
subsets. This is compact in the vast majority of cases, yet still
represents named ports and corner cases (e.g. each pod has a different
port number).
This also stores subsets in a deterministic order (sorted by hash) to
avoid spurious updates and comparison problems.
This is a fully compatible change - old objects and clients will
keepworking as long as they don't need the new functionality.
This is the prep for multi-port Services, which will add API to produce
endpoints in this new structure.
381 lines
11 KiB
Go
381 lines
11 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package v1beta2_test
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import (
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"encoding/json"
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"testing"
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newer "github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api/resource"
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current "github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1beta2"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
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)
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func TestServiceEmptySelector(t *testing.T) {
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// Nil map should be preserved
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svc := ¤t.Service{Selector: nil}
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data, err := newer.Scheme.EncodeToVersion(svc, "v1beta2")
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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obj, err := newer.Scheme.Decode(data)
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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selector := obj.(*newer.Service).Spec.Selector
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if selector != nil {
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t.Errorf("unexpected selector: %#v", obj)
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}
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// Empty map should be preserved
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svc2 := ¤t.Service{Selector: map[string]string{}}
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data, err = newer.Scheme.EncodeToVersion(svc2, "v1beta2")
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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obj, err = newer.Scheme.Decode(data)
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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selector = obj.(*newer.Service).Spec.Selector
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if selector == nil || len(selector) != 0 {
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t.Errorf("unexpected selector: %#v", obj)
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}
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}
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func TestNodeConversion(t *testing.T) {
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version, kind, err := newer.Scheme.ObjectVersionAndKind(¤t.Minion{})
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if version != "v1beta2" || kind != "Minion" {
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t.Errorf("unexpected version and kind: %s %s", version, kind)
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}
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newer.Scheme.Log(t)
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obj, err := current.Codec.Decode([]byte(`{"kind":"Node","apiVersion":"v1beta2"}`))
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if _, ok := obj.(*newer.Node); !ok {
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t.Errorf("unexpected type: %#v", obj)
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}
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obj, err = current.Codec.Decode([]byte(`{"kind":"NodeList","apiVersion":"v1beta2"}`))
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if _, ok := obj.(*newer.NodeList); !ok {
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t.Errorf("unexpected type: %#v", obj)
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}
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obj = &newer.Node{}
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if err := current.Codec.DecodeInto([]byte(`{"kind":"Node","apiVersion":"v1beta2"}`), obj); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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obj = &newer.Node{}
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data, err := current.Codec.Encode(obj)
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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m := map[string]interface{}{}
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if err := json.Unmarshal(data, &m); err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if m["kind"] != "Minion" {
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t.Errorf("unexpected encoding: %s - %#v", m["kind"], string(data))
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}
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}
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func TestPullPolicyConversion(t *testing.T) {
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table := []struct {
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versioned current.PullPolicy
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internal newer.PullPolicy
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}{
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{
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versioned: current.PullAlways,
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internal: newer.PullAlways,
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}, {
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versioned: current.PullNever,
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internal: newer.PullNever,
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}, {
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versioned: current.PullIfNotPresent,
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internal: newer.PullIfNotPresent,
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}, {
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versioned: "",
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internal: "",
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}, {
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versioned: "invalid value",
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internal: "invalid value",
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},
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}
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for _, item := range table {
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var got newer.PullPolicy
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err := newer.Scheme.Convert(&item.versioned, &got)
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if err != nil {
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t.Errorf("Unexpected error: %v", err)
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continue
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}
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if e, a := item.internal, got; e != a {
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t.Errorf("Expected: %q, got %q", e, a)
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}
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}
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for _, item := range table {
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var got current.PullPolicy
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err := newer.Scheme.Convert(&item.internal, &got)
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if err != nil {
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t.Errorf("Unexpected error: %v", err)
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continue
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}
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if e, a := item.versioned, got; e != a {
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t.Errorf("Expected: %q, got %q", e, a)
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}
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}
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}
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func getResourceRequirements(cpu, memory resource.Quantity) current.ResourceRequirements {
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res := current.ResourceRequirements{}
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res.Limits = current.ResourceList{}
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if cpu.Value() > 0 {
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res.Limits[current.ResourceCPU] = util.NewIntOrStringFromInt(int(cpu.Value()))
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}
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if memory.Value() > 0 {
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res.Limits[current.ResourceMemory] = util.NewIntOrStringFromInt(int(memory.Value()))
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}
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return res
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}
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func TestContainerConversion(t *testing.T) {
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cpuLimit := resource.MustParse("10")
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memoryLimit := resource.MustParse("10M")
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null := resource.Quantity{}
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testCases := []current.Container{
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{
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Name: "container",
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Resources: getResourceRequirements(cpuLimit, memoryLimit),
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},
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{
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Name: "container",
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CPU: int(cpuLimit.MilliValue()),
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Resources: getResourceRequirements(null, memoryLimit),
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},
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{
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Name: "container",
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Memory: memoryLimit.Value(),
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Resources: getResourceRequirements(cpuLimit, null),
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},
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{
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Name: "container",
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CPU: int(cpuLimit.MilliValue()),
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Memory: memoryLimit.Value(),
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},
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{
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Name: "container",
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Memory: memoryLimit.Value(),
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Resources: getResourceRequirements(cpuLimit, resource.MustParse("100M")),
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},
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{
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Name: "container",
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CPU: int(cpuLimit.MilliValue()),
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Resources: getResourceRequirements(resource.MustParse("500"), memoryLimit),
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},
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}
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for i, tc := range testCases {
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got := newer.Container{}
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if err := newer.Scheme.Convert(&tc, &got); err != nil {
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t.Errorf("[Case: %d] Unexpected error: %v", i, err)
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continue
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}
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if cpu := got.Resources.Limits.Cpu(); cpu.Value() != cpuLimit.Value() {
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t.Errorf("[Case: %d] Expected cpu: %v, got: %v", i, cpuLimit, *cpu)
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}
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if memory := got.Resources.Limits.Memory(); memory.Value() != memoryLimit.Value() {
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t.Errorf("[Case: %d] Expected memory: %v, got: %v", i, memoryLimit, *memory)
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}
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}
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}
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func TestEndpointsConversion(t *testing.T) {
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testCases := []struct {
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given current.Endpoints
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expected newer.Endpoints
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}{
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{
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given: current.Endpoints{
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TypeMeta: current.TypeMeta{
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ID: "empty",
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},
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Protocol: current.ProtocolTCP,
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Endpoints: []string{},
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},
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expected: newer.Endpoints{
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Subsets: []newer.EndpointSubset{},
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},
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},
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{
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given: current.Endpoints{
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TypeMeta: current.TypeMeta{
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ID: "one legacy",
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},
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Protocol: current.ProtocolTCP,
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Endpoints: []string{"1.2.3.4:88"},
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},
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expected: newer.Endpoints{
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Subsets: []newer.EndpointSubset{{
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Ports: []newer.EndpointPort{{Name: "", Port: 88, Protocol: newer.ProtocolTCP}},
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Addresses: []newer.EndpointAddress{{IP: "1.2.3.4"}},
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}},
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},
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},
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{
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given: current.Endpoints{
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TypeMeta: current.TypeMeta{
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ID: "several legacy",
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},
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Protocol: current.ProtocolUDP,
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Endpoints: []string{"1.2.3.4:88", "1.2.3.4:89", "1.2.3.4:90"},
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},
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expected: newer.Endpoints{
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Subsets: []newer.EndpointSubset{
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{
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Ports: []newer.EndpointPort{{Name: "", Port: 88, Protocol: newer.ProtocolUDP}},
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Addresses: []newer.EndpointAddress{{IP: "1.2.3.4"}},
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},
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{
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Ports: []newer.EndpointPort{{Name: "", Port: 89, Protocol: newer.ProtocolUDP}},
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Addresses: []newer.EndpointAddress{{IP: "1.2.3.4"}},
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},
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{
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Ports: []newer.EndpointPort{{Name: "", Port: 90, Protocol: newer.ProtocolUDP}},
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Addresses: []newer.EndpointAddress{{IP: "1.2.3.4"}},
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},
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}},
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},
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{
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given: current.Endpoints{
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TypeMeta: current.TypeMeta{
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ID: "one subset",
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},
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Protocol: current.ProtocolTCP,
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Endpoints: []string{"1.2.3.4:88"},
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Subsets: []current.EndpointSubset{{
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Ports: []current.EndpointPort{{Name: "", Port: 88, Protocol: current.ProtocolTCP}},
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Addresses: []current.EndpointAddress{{IP: "1.2.3.4"}},
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}},
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},
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expected: newer.Endpoints{
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Subsets: []newer.EndpointSubset{{
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Ports: []newer.EndpointPort{{Name: "", Port: 88, Protocol: newer.ProtocolTCP}},
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Addresses: []newer.EndpointAddress{{IP: "1.2.3.4"}},
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}},
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},
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},
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{
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given: current.Endpoints{
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TypeMeta: current.TypeMeta{
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ID: "several subset",
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},
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Protocol: current.ProtocolUDP,
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Endpoints: []string{"1.2.3.4:88", "5.6.7.8:88", "1.2.3.4:89", "5.6.7.8:89"},
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Subsets: []current.EndpointSubset{
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{
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Ports: []current.EndpointPort{{Name: "", Port: 88, Protocol: current.ProtocolUDP}},
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Addresses: []current.EndpointAddress{{IP: "1.2.3.4"}, {IP: "5.6.7.8"}},
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},
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{
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Ports: []current.EndpointPort{{Name: "", Port: 89, Protocol: current.ProtocolUDP}},
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Addresses: []current.EndpointAddress{{IP: "1.2.3.4"}, {IP: "5.6.7.8"}},
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},
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{
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Ports: []current.EndpointPort{{Name: "named", Port: 90, Protocol: current.ProtocolUDP}},
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Addresses: []current.EndpointAddress{{IP: "1.2.3.4"}, {IP: "5.6.7.8"}},
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},
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},
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},
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expected: newer.Endpoints{
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Subsets: []newer.EndpointSubset{
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{
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Ports: []newer.EndpointPort{{Name: "", Port: 88, Protocol: newer.ProtocolUDP}},
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Addresses: []newer.EndpointAddress{{IP: "1.2.3.4"}, {IP: "5.6.7.8"}},
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},
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{
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Ports: []newer.EndpointPort{{Name: "", Port: 89, Protocol: newer.ProtocolUDP}},
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Addresses: []newer.EndpointAddress{{IP: "1.2.3.4"}, {IP: "5.6.7.8"}},
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},
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{
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Ports: []newer.EndpointPort{{Name: "named", Port: 90, Protocol: newer.ProtocolUDP}},
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Addresses: []newer.EndpointAddress{{IP: "1.2.3.4"}, {IP: "5.6.7.8"}},
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},
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}},
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},
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}
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for i, tc := range testCases {
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// Convert versioned -> internal.
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got := newer.Endpoints{}
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if err := newer.Scheme.Convert(&tc.given, &got); err != nil {
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t.Errorf("[Case: %d] Unexpected error: %v", i, err)
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continue
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}
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if !newer.Semantic.DeepEqual(got.Subsets, tc.expected.Subsets) {
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t.Errorf("[Case: %d] Expected %#v, got %#v", i, tc.expected.Subsets, got.Subsets)
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}
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// Convert internal -> versioned.
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got2 := current.Endpoints{}
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if err := newer.Scheme.Convert(&got, &got2); err != nil {
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t.Errorf("[Case: %d] Unexpected error: %v", i, err)
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continue
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}
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if got2.Protocol != tc.given.Protocol || !newer.Semantic.DeepEqual(got2.Endpoints, tc.given.Endpoints) {
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t.Errorf("[Case: %d] Expected %#v, got %#v", i, tc.given.Endpoints, got2.Endpoints)
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}
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}
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}
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func TestSecretVolumeSourceConversion(t *testing.T) {
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given := current.SecretVolumeSource{
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Target: current.ObjectReference{
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ID: "foo",
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},
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}
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expected := newer.SecretVolumeSource{
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SecretName: "foo",
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}
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got := newer.SecretVolumeSource{}
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if err := newer.Scheme.Convert(&given, &got); err != nil {
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t.Errorf("Unexpected error: %v", err)
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}
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if got.SecretName != expected.SecretName {
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t.Errorf("Expected %v; got %v", expected, got)
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}
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got2 := current.SecretVolumeSource{}
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if err := newer.Scheme.Convert(&got, &got2); err != nil {
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t.Errorf("Unexpected error: %v", err)
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}
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if got2.Target.ID != given.Target.ID {
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t.Errorf("Expected %v; got %v", given, got2)
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}
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}
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