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https://github.com/k3s-io/kubernetes.git
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Add pod registry.
This commit is contained in:
Brendan Burns
parent
66e2575f2b
commit
79b7976cbf
121
pkg/registry/pod_registry.go
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121
pkg/registry/pod_registry.go
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@ -0,0 +1,121 @@
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/*
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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 registry
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import (
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"encoding/json"
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"fmt"
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"net/url"
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. "github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/apiserver"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
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)
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// TaskRegistryStorage implements the RESTStorage interface in terms of a TaskRegistry
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type TaskRegistryStorage struct {
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registry PodRegistry
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containerInfo client.ContainerInfo
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scheduler Scheduler
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}
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func MakeTaskRegistryStorage(registry PodRegistry, containerInfo client.ContainerInfo, scheduler Scheduler) apiserver.RESTStorage {
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return &TaskRegistryStorage{
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registry: registry,
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containerInfo: containerInfo,
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scheduler: scheduler,
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}
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}
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// LabelMatch tests to see if a Task's labels map contains 'key' mapping to 'value'
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func LabelMatch(task Pod, queryKey, queryValue string) bool {
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for key, value := range task.Labels {
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if queryKey == key && queryValue == value {
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return true
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}
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}
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return false
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}
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// LabelMatch tests to see if a Task's labels map contains all key/value pairs in 'labelQuery'
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func LabelsMatch(task Pod, labelQuery *map[string]string) bool {
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if labelQuery == nil {
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return true
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}
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for key, value := range *labelQuery {
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if !LabelMatch(task, key, value) {
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return false
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}
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}
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return true
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}
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func (storage *TaskRegistryStorage) List(url *url.URL) (interface{}, error) {
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var result PodList
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var query *map[string]string
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if url != nil {
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queryMap := client.DecodeLabelQuery(url.Query().Get("labels"))
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query = &queryMap
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}
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tasks, err := storage.registry.ListTasks(query)
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if err == nil {
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result = PodList{
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Items: tasks,
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}
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}
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result.Kind = "cluster#taskList"
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return result, err
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}
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func (storage *TaskRegistryStorage) Get(id string) (interface{}, error) {
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task, err := storage.registry.GetTask(id)
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if err != nil {
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return task, err
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}
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info, err := storage.containerInfo.GetContainerInfo(task.CurrentState.Host, id)
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if err != nil {
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return task, err
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}
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task.CurrentState.Info = info
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task.Kind = "cluster#task"
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return task, err
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}
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func (storage *TaskRegistryStorage) Delete(id string) error {
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return storage.registry.DeleteTask(id)
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}
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func (storage *TaskRegistryStorage) Extract(body string) (interface{}, error) {
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task := Pod{}
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err := json.Unmarshal([]byte(body), &task)
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return task, err
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}
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func (storage *TaskRegistryStorage) Create(task interface{}) error {
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taskObj := task.(Pod)
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if len(taskObj.ID) == 0 {
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return fmt.Errorf("ID is unspecified: %#v", task)
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}
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machine, err := storage.scheduler.Schedule(taskObj)
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if err != nil {
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return err
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}
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return storage.registry.CreateTask(machine, taskObj)
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}
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func (storage *TaskRegistryStorage) Update(task interface{}) error {
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return storage.registry.UpdateTask(task.(Pod))
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}
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204
pkg/registry/pod_registry_test.go
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204
pkg/registry/pod_registry_test.go
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@ -0,0 +1,204 @@
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/*
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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 registry
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import (
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"encoding/json"
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"fmt"
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"testing"
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. "github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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)
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type MockPodRegistry struct {
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err error
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pods []Pod
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}
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func expectNoError(t *testing.T, err error) {
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if err != nil {
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t.Errorf("Unexpected error: %#v", err)
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}
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}
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func (registry *MockPodRegistry) ListTasks(*map[string]string) ([]Pod, error) {
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return registry.pods, registry.err
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}
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func (registry *MockPodRegistry) GetTask(podId string) (*Pod, error) {
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return &Pod{}, registry.err
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}
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func (registry *MockPodRegistry) CreateTask(machine string, pod Pod) error {
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return registry.err
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}
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func (registry *MockPodRegistry) UpdateTask(pod Pod) error {
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return registry.err
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}
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func (registry *MockPodRegistry) DeleteTask(podId string) error {
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return registry.err
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}
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func TestListTasksError(t *testing.T) {
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mockRegistry := MockPodRegistry{
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err: fmt.Errorf("Test Error"),
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}
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storage := TaskRegistryStorage{
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registry: &mockRegistry,
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}
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pods, err := storage.List(nil)
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if err != mockRegistry.err {
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t.Errorf("Expected %#v, Got %#v", mockRegistry.err, err)
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}
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if len(pods.(PodList).Items) != 0 {
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t.Errorf("Unexpected non-zero pod list: %#v", pods)
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}
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}
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func TestListEmptyTaskList(t *testing.T) {
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mockRegistry := MockPodRegistry{}
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storage := TaskRegistryStorage{
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registry: &mockRegistry,
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}
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pods, err := storage.List(nil)
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expectNoError(t, err)
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if len(pods.(PodList).Items) != 0 {
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t.Errorf("Unexpected non-zero pod list: %#v", pods)
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}
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}
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func TestListTaskList(t *testing.T) {
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mockRegistry := MockPodRegistry{
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pods: []Pod{
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Pod{
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JSONBase: JSONBase{
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ID: "foo",
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},
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},
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Pod{
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JSONBase: JSONBase{
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ID: "bar",
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},
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},
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},
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}
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storage := TaskRegistryStorage{
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registry: &mockRegistry,
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}
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podsObj, err := storage.List(nil)
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pods := podsObj.(PodList)
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expectNoError(t, err)
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if len(pods.Items) != 2 {
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t.Errorf("Unexpected pod list: %#v", pods)
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}
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if pods.Items[0].ID != "foo" {
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t.Errorf("Unexpected pod: %#v", pods.Items[0])
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}
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if pods.Items[1].ID != "bar" {
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t.Errorf("Unexpected pod: %#v", pods.Items[1])
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}
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}
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func TestExtractJson(t *testing.T) {
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mockRegistry := MockPodRegistry{}
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storage := TaskRegistryStorage{
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registry: &mockRegistry,
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}
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pod := Pod{
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JSONBase: JSONBase{
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ID: "foo",
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},
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}
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body, err := json.Marshal(pod)
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expectNoError(t, err)
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podOut, err := storage.Extract(string(body))
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expectNoError(t, err)
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jsonOut, err := json.Marshal(podOut)
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expectNoError(t, err)
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if string(body) != string(jsonOut) {
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t.Errorf("Expected %#v, found %#v", pod, podOut)
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}
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}
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func expectLabelMatch(t *testing.T, pod Pod, key, value string) {
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if !LabelMatch(pod, key, value) {
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t.Errorf("Unexpected match failure: %#v %s %s", pod, key, value)
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}
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}
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func expectNoLabelMatch(t *testing.T, pod Pod, key, value string) {
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if LabelMatch(pod, key, value) {
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t.Errorf("Unexpected match success: %#v %s %s", pod, key, value)
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}
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}
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func expectLabelsMatch(t *testing.T, pod Pod, query *map[string]string) {
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if !LabelsMatch(pod, query) {
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t.Errorf("Unexpected match failure: %#v %#v", pod, *query)
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}
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}
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func expectNoLabelsMatch(t *testing.T, pod Pod, query *map[string]string) {
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if LabelsMatch(pod, query) {
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t.Errorf("Unexpected match success: %#v %#v", pod, *query)
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}
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}
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func TestLabelMatch(t *testing.T) {
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pod := Pod{
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Labels: map[string]string{
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"foo": "bar",
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"baz": "blah",
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},
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}
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expectLabelMatch(t, pod, "foo", "bar")
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expectLabelMatch(t, pod, "baz", "blah")
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expectNoLabelMatch(t, pod, "foo", "blah")
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expectNoLabelMatch(t, pod, "baz", "bar")
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}
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func TestLabelsMatch(t *testing.T) {
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pod := Pod{
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Labels: map[string]string{
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"foo": "bar",
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"baz": "blah",
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},
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}
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expectLabelsMatch(t, pod, &map[string]string{})
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expectLabelsMatch(t, pod, &map[string]string{
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"foo": "bar",
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})
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expectLabelsMatch(t, pod, &map[string]string{
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"baz": "blah",
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})
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expectLabelsMatch(t, pod, &map[string]string{
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"foo": "bar",
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"baz": "blah",
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})
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expectNoLabelsMatch(t, pod, &map[string]string{
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"foo": "blah",
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})
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expectNoLabelsMatch(t, pod, &map[string]string{
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"baz": "bar",
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})
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expectNoLabelsMatch(t, pod, &map[string]string{
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"foo": "bar",
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"foobar": "bar",
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"baz": "blah",
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})
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}
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