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For example, if you used pod.GenerateName, pod.Name might be the empty string while p.Name contains the actual name of your pod. Thus passing pod.Name can result in a `resource name may not be empty` error.
112 lines
3.3 KiB
Go
112 lines
3.3 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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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 framework
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import (
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"fmt"
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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/api/errors"
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"k8s.io/kubernetes/pkg/client/unversioned"
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"k8s.io/kubernetes/pkg/util/wait"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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// Convenience method for getting a pod client interface in the framework's namespace.
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func (f *Framework) PodClient() *PodClient {
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return &PodClient{
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f: f,
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PodInterface: f.Client.Pods(f.Namespace.Name),
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}
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}
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type PodClient struct {
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f *Framework
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unversioned.PodInterface
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}
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// Create creates a new pod according to the framework specifications (don't wait for it to start).
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func (c *PodClient) Create(pod *api.Pod) *api.Pod {
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c.mungeSpec(pod)
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p, err := c.PodInterface.Create(pod)
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ExpectNoError(err, "Error creating Pod")
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return p
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}
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// CreateSync creates a new pod according to the framework specifications, and wait for it to start.
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func (c *PodClient) CreateSync(pod *api.Pod) *api.Pod {
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p := c.Create(pod)
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ExpectNoError(c.f.WaitForPodRunning(p.Name))
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// Get the newest pod after it becomes running, some status may change after pod created, such as pod ip.
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p, err := c.Get(p.Name)
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ExpectNoError(err)
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return p
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}
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// CreateBatch create a batch of pods. All pods are created before waiting.
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func (c *PodClient) CreateBatch(pods []*api.Pod) []*api.Pod {
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ps := make([]*api.Pod, len(pods))
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var wg sync.WaitGroup
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for i, pod := range pods {
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wg.Add(1)
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go func(i int, pod *api.Pod) {
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defer wg.Done()
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defer GinkgoRecover()
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ps[i] = c.CreateSync(pod)
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}(i, pod)
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}
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wg.Wait()
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return ps
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}
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// Update updates the pod object. It retries if there is a conflict, throw out error if
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// there is any other errors. name is the pod name, updateFn is the function updating the
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// pod object.
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func (c *PodClient) Update(name string, updateFn func(pod *api.Pod)) {
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ExpectNoError(wait.Poll(time.Millisecond*500, time.Second*30, func() (bool, error) {
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pod, err := c.PodInterface.Get(name)
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if err != nil {
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return false, fmt.Errorf("failed to get pod %q: %v", name, err)
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}
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updateFn(pod)
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_, err = c.PodInterface.Update(pod)
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if err == nil {
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Logf("Successfully updated pod %q", name)
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return true, nil
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}
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if errors.IsConflict(err) {
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Logf("Conflicting update to pod %q, re-get and re-update: %v", name, err)
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return false, nil
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}
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return false, fmt.Errorf("failed to update pod %q: %v", name, err)
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}))
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}
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// mungeSpec apply test-suite specific transformations to the pod spec.
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func (c *PodClient) mungeSpec(pod *api.Pod) {
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if TestContext.NodeName != "" {
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Expect(pod.Spec.NodeName).To(Or(BeZero(), Equal(TestContext.NodeName)), "Test misconfigured")
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pod.Spec.NodeName = TestContext.NodeName
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}
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}
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// TODO(random-liu): Move pod wait function into this file
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