9b85d20c73
Some runtimes (eg, Hypernetes) don't create network namespaces for pods, so network plugins must correctly handle any error returned from the runtime.
364 lines
8.8 KiB
Go
364 lines
8.8 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors 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 testing
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import (
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"fmt"
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"io"
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"reflect"
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"sync"
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"time"
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"k8s.io/kubernetes/pkg/api"
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. "k8s.io/kubernetes/pkg/kubelet/container"
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"k8s.io/kubernetes/pkg/types"
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"k8s.io/kubernetes/pkg/util/flowcontrol"
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"k8s.io/kubernetes/pkg/volume"
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)
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// FakeRuntime is a fake container runtime for testing.
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type FakeRuntime struct {
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sync.Mutex
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CalledFunctions []string
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PodList []*Pod
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AllPodList []*Pod
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ImageList []Image
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APIPodStatus api.PodStatus
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PodStatus PodStatus
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StartedPods []string
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KilledPods []string
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StartedContainers []string
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KilledContainers []string
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VersionInfo string
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APIVersionInfo string
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RuntimeType string
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Err error
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InspectErr error
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StatusErr error
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}
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// FakeRuntime should implement Runtime.
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var _ Runtime = &FakeRuntime{}
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type FakeVersion struct {
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Version string
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}
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func (fv *FakeVersion) String() string {
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return fv.Version
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}
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func (fv *FakeVersion) Compare(other string) (int, error) {
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result := 0
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if fv.Version > other {
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result = 1
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} else if fv.Version < other {
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result = -1
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}
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return result, nil
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}
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type podsGetter interface {
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GetPods(bool) ([]*Pod, error)
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}
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type FakeRuntimeCache struct {
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getter podsGetter
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}
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func NewFakeRuntimeCache(getter podsGetter) RuntimeCache {
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return &FakeRuntimeCache{getter}
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}
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func (f *FakeRuntimeCache) GetPods() ([]*Pod, error) {
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return f.getter.GetPods(false)
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}
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func (f *FakeRuntimeCache) ForceUpdateIfOlder(time.Time) error {
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return nil
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}
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// ClearCalls resets the FakeRuntime to the initial state.
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func (f *FakeRuntime) ClearCalls() {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = []string{}
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f.PodList = []*Pod{}
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f.AllPodList = []*Pod{}
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f.APIPodStatus = api.PodStatus{}
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f.StartedPods = []string{}
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f.KilledPods = []string{}
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f.StartedContainers = []string{}
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f.KilledContainers = []string{}
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f.VersionInfo = ""
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f.RuntimeType = ""
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f.Err = nil
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f.InspectErr = nil
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f.StatusErr = nil
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}
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func (f *FakeRuntime) assertList(expect []string, test []string) error {
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if !reflect.DeepEqual(expect, test) {
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return fmt.Errorf("expected %#v, got %#v", expect, test)
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}
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return nil
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}
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// AssertCalls test if the invoked functions are as expected.
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func (f *FakeRuntime) AssertCalls(calls []string) error {
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f.Lock()
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defer f.Unlock()
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return f.assertList(calls, f.CalledFunctions)
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}
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func (f *FakeRuntime) AssertStartedPods(pods []string) error {
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f.Lock()
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defer f.Unlock()
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return f.assertList(pods, f.StartedPods)
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}
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func (f *FakeRuntime) AssertKilledPods(pods []string) error {
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f.Lock()
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defer f.Unlock()
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return f.assertList(pods, f.KilledPods)
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}
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func (f *FakeRuntime) AssertStartedContainers(containers []string) error {
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f.Lock()
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defer f.Unlock()
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return f.assertList(containers, f.StartedContainers)
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}
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func (f *FakeRuntime) AssertKilledContainers(containers []string) error {
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f.Lock()
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defer f.Unlock()
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return f.assertList(containers, f.KilledContainers)
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}
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func (f *FakeRuntime) Type() string {
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return f.RuntimeType
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}
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func (f *FakeRuntime) Version() (Version, error) {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "Version")
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return &FakeVersion{Version: f.VersionInfo}, f.Err
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}
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func (f *FakeRuntime) APIVersion() (Version, error) {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "APIVersion")
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return &FakeVersion{Version: f.APIVersionInfo}, f.Err
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}
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func (f *FakeRuntime) Status() error {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "Status")
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return f.StatusErr
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}
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func (f *FakeRuntime) GetPods(all bool) ([]*Pod, error) {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "GetPods")
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if all {
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return f.AllPodList, f.Err
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}
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return f.PodList, f.Err
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}
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func (f *FakeRuntime) SyncPod(pod *api.Pod, _ api.PodStatus, _ *PodStatus, _ []api.Secret, backOff *flowcontrol.Backoff) (result PodSyncResult) {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "SyncPod")
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f.StartedPods = append(f.StartedPods, string(pod.UID))
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for _, c := range pod.Spec.Containers {
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f.StartedContainers = append(f.StartedContainers, c.Name)
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}
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// TODO(random-liu): Add SyncResult for starting and killing containers
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if f.Err != nil {
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result.Fail(f.Err)
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}
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return
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}
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func (f *FakeRuntime) KillPod(pod *api.Pod, runningPod Pod, gracePeriodOverride *int64) error {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "KillPod")
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f.KilledPods = append(f.KilledPods, string(runningPod.ID))
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for _, c := range runningPod.Containers {
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f.KilledContainers = append(f.KilledContainers, c.Name)
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}
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return f.Err
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}
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func (f *FakeRuntime) RunContainerInPod(container api.Container, pod *api.Pod, volumeMap map[string]volume.VolumePlugin) error {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "RunContainerInPod")
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f.StartedContainers = append(f.StartedContainers, container.Name)
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pod.Spec.Containers = append(pod.Spec.Containers, container)
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for _, c := range pod.Spec.Containers {
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if c.Name == container.Name { // Container already in the pod.
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return f.Err
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}
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}
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pod.Spec.Containers = append(pod.Spec.Containers, container)
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return f.Err
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}
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func (f *FakeRuntime) KillContainerInPod(container api.Container, pod *api.Pod) error {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "KillContainerInPod")
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f.KilledContainers = append(f.KilledContainers, container.Name)
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var containers []api.Container
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for _, c := range pod.Spec.Containers {
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if c.Name == container.Name {
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continue
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}
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containers = append(containers, c)
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}
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return f.Err
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}
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func (f *FakeRuntime) GetPodStatus(uid types.UID, name, namespace string) (*PodStatus, error) {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "GetPodStatus")
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status := f.PodStatus
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return &status, f.Err
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}
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func (f *FakeRuntime) ExecInContainer(containerID ContainerID, cmd []string, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool) error {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "ExecInContainer")
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return f.Err
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}
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func (f *FakeRuntime) AttachContainer(containerID ContainerID, stdin io.Reader, stdout, stderr io.WriteCloser, tty bool) error {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "AttachContainer")
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return f.Err
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}
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func (f *FakeRuntime) GetContainerLogs(pod *api.Pod, containerID ContainerID, logOptions *api.PodLogOptions, stdout, stderr io.Writer) (err error) {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "GetContainerLogs")
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return f.Err
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}
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func (f *FakeRuntime) PullImage(image ImageSpec, pullSecrets []api.Secret) error {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "PullImage")
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return f.Err
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}
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func (f *FakeRuntime) IsImagePresent(image ImageSpec) (bool, error) {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "IsImagePresent")
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for _, i := range f.ImageList {
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if i.ID == image.Image {
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return true, nil
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}
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}
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return false, f.InspectErr
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}
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func (f *FakeRuntime) ListImages() ([]Image, error) {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "ListImages")
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return f.ImageList, f.Err
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}
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func (f *FakeRuntime) RemoveImage(image ImageSpec) error {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "RemoveImage")
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index := 0
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for i := range f.ImageList {
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if f.ImageList[i].ID == image.Image {
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index = i
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break
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}
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}
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f.ImageList = append(f.ImageList[:index], f.ImageList[index+1:]...)
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return f.Err
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}
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func (f *FakeRuntime) PortForward(pod *Pod, port uint16, stream io.ReadWriteCloser) error {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "PortForward")
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return f.Err
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}
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func (f *FakeRuntime) GetNetNS(containerID ContainerID) (string, error) {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "GetNetNS")
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return "", f.Err
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}
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func (f *FakeRuntime) GarbageCollect(gcPolicy ContainerGCPolicy) error {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "GarbageCollect")
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return f.Err
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}
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func (f *FakeRuntime) ImageStats() (*ImageStats, error) {
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f.Lock()
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defer f.Unlock()
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f.CalledFunctions = append(f.CalledFunctions, "ImageStats")
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return nil, f.Err
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}
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