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Adding an integration test for cadvisor.
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54
test/e2e/cadvisor.go
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54
test/e2e/cadvisor.go
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/*
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Copyright 2015 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 e2e
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import (
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"fmt"
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"time"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
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. "github.com/onsi/ginkgo"
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)
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var _ = Describe("Cadvisor", func() {
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var c *client.Client
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BeforeEach(func() {
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var err error
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c, err = loadClient()
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expectNoError(err)
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})
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It("cadvisor should be healthy on every node.", func() {
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CheckCadvisorHealthOnAllNodes(c)
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})
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})
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func CheckCadvisorHealthOnAllNodes(c *client.Client) {
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By("getting list of nodes")
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nodeList, err := c.Nodes().List()
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expectNoError(err)
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for _, node := range nodeList.Items {
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// cadvisor is not accessible directly unless its port (4194 by default) is exposed.
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// Here, we access '/stats/' REST endpoint on the kubelet which polls cadvisor internally.
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statsResource := fmt.Sprintf("api/v1beta1/proxy/minions/%s/stats/", node.Name)
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By(fmt.Sprintf("Querying stats from node %s using url %s", node.Name, statsResource))
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_, err = c.Get().AbsPath(statsResource).Timeout(1 * time.Second).Do().Raw()
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expectNoError(err)
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}
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}
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