зеркало из https://github.com/Azure/aks-engine.git
220 строки
8.8 KiB
Go
220 строки
8.8 KiB
Go
// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT license.
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package operations
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import (
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"fmt"
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"testing"
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"time"
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. "github.com/onsi/gomega"
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"github.com/pkg/errors"
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log "github.com/sirupsen/logrus"
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v1 "k8s.io/api/core/v1"
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"github.com/Azure/aks-engine/pkg/api/common"
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"github.com/Azure/aks-engine/pkg/armhelpers"
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)
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func TestGetNodes_ShouldReturnAResultSetWithNodes(t *testing.T) {
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t.Parallel()
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mockClient := armhelpers.MockAKSEngineClient{MockKubernetesClient: &armhelpers.MockKubernetesClient{}}
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logger := log.NewEntry(log.New())
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apiserverURL := "https://apiserver"
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kubeconfig := "kubeconfig"
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timeout := time.Minute * 1
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result := listNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout)
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g := NewGomegaWithT(t)
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g.Expect(result.err).To(BeNil())
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g.Expect(result.nodes).To(HaveLen(2))
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g.Expect(result.nodes[0].Name).To(Equal(fmt.Sprintf("%s-1234", common.LegacyControlPlaneVMPrefix)))
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g.Expect(result.nodes[0].Status.Conditions[0].Type).To(Equal(v1.NodeReady))
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g.Expect(result.nodes[0].Status.Conditions[0].Status).To(Equal(v1.ConditionTrue))
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g.Expect(result.nodes[0].Status.NodeInfo.KubeletVersion).To(Equal("1.9.10"))
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g.Expect(result.nodes[1].Name).To(Equal("k8s-agentpool3-1234"))
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g.Expect(result.nodes[1].Status.Conditions[0].Type).To(Equal(v1.NodeMemoryPressure))
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g.Expect(result.nodes[1].Status.Conditions[0].Status).To(Equal(v1.ConditionTrue))
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g.Expect(result.nodes[1].Status.NodeInfo.KubeletVersion).To(Equal("1.9.9"))
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}
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func TestGetNodes_ShouldErrorWhenK8sClientGetterFails(t *testing.T) {
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t.Parallel()
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mockClient := armhelpers.MockAKSEngineClient{
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FailGetKubernetesClient: true,
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MockKubernetesClient: &armhelpers.MockKubernetesClient{}}
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logger := log.NewEntry(log.New())
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apiserverURL := "https://apiserver"
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kubeconfig := "kubeconfig"
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timeout := time.Minute * 1
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result := listNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout)
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g := NewGomegaWithT(t)
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g.Expect(result.err).NotTo(BeNil())
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g.Expect(result.err.Error()).To(Equal("GetKubernetesClient failed"))
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g.Expect(result.nodes).To(HaveLen(0))
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}
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func TestGetNodes_ShouldErrorWhenTheK8sAPIFailsToListNodes(t *testing.T) {
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t.Parallel()
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mockClient := armhelpers.MockAKSEngineClient{MockKubernetesClient: &armhelpers.MockKubernetesClient{
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FailListNodes: true,
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}}
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logger := log.NewEntry(log.New())
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apiserverURL := "https://apiserver"
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kubeconfig := "kubeconfig"
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timeout := time.Minute * 1
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result := listNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout)
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g := NewGomegaWithT(t)
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g.Expect(result.err).NotTo(BeNil())
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g.Expect(result.err.Error()).To(Equal("ListNodes failed"))
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g.Expect(result.nodes).To(HaveLen(0))
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}
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func TestGetNodes_ShouldReturnNodes(t *testing.T) {
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t.Parallel()
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mockClient := armhelpers.MockAKSEngineClient{MockKubernetesClient: &armhelpers.MockKubernetesClient{}}
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logger := log.NewEntry(log.New())
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apiserverURL := "https://apiserver"
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kubeconfig := "kubeconfig"
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timeout := time.Minute * 1
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nodes, err := GetNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout, "", -1)
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g := NewGomegaWithT(t)
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g.Expect(err).To(BeNil())
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g.Expect(nodes).To(HaveLen(2))
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g.Expect(nodes[0].Name).To(Equal(fmt.Sprintf("%s-1234", common.LegacyControlPlaneVMPrefix)))
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g.Expect(nodes[0].Status.Conditions[0].Type).To(Equal(v1.NodeReady))
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g.Expect(nodes[0].Status.Conditions[0].Status).To(Equal(v1.ConditionTrue))
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g.Expect(nodes[0].Status.NodeInfo.KubeletVersion).To(Equal("1.9.10"))
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g.Expect(nodes[1].Name).To(Equal("k8s-agentpool3-1234"))
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g.Expect(nodes[1].Status.Conditions[0].Type).To(Equal(v1.NodeMemoryPressure))
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g.Expect(nodes[1].Status.Conditions[0].Status).To(Equal(v1.ConditionTrue))
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g.Expect(nodes[1].Status.NodeInfo.KubeletVersion).To(Equal("1.9.9"))
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}
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func TestGetNodes_ShouldReturnNodesInAPoolWhenAPoolStringIsSpecified(t *testing.T) {
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t.Parallel()
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mockClient := armhelpers.MockAKSEngineClient{MockKubernetesClient: &armhelpers.MockKubernetesClient{}}
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logger := log.NewEntry(log.New())
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apiserverURL := "https://apiserver"
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kubeconfig := "kubeconfig"
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timeout := time.Minute * 1
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nodes, err := GetNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout, "agentpool3", -1)
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g := NewGomegaWithT(t)
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g.Expect(err).To(BeNil())
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g.Expect(nodes).To(HaveLen(1))
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g.Expect(nodes[0].Name).To(Equal("k8s-agentpool3-1234"))
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g.Expect(nodes[0].Status.Conditions[0].Type).To(Equal(v1.NodeMemoryPressure))
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g.Expect(nodes[0].Status.Conditions[0].Status).To(Equal(v1.ConditionTrue))
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g.Expect(nodes[0].Status.NodeInfo.KubeletVersion).To(Equal("1.9.9"))
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nodes, err = GetNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout, "nonexistent", -1)
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g.Expect(err).To(BeNil())
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g.Expect(nodes).To(HaveLen(0))
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}
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func TestGetNodes_ShouldRespectTheWaitForNumNodesArg(t *testing.T) {
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t.Parallel()
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mockClient := armhelpers.MockAKSEngineClient{MockKubernetesClient: &armhelpers.MockKubernetesClient{}}
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logger := log.NewEntry(log.New())
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apiserverURL := "https://apiserver"
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kubeconfig := "kubeconfig"
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timeout := time.Second * 1
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nodes, err := GetNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout, "", 2)
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g := NewGomegaWithT(t)
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g.Expect(err).To(BeNil())
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g.Expect(nodes).To(HaveLen(2))
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g.Expect(nodes[0].Name).To(Equal(fmt.Sprintf("%s-1234", common.LegacyControlPlaneVMPrefix)))
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g.Expect(nodes[0].Status.Conditions[0].Type).To(Equal(v1.NodeReady))
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g.Expect(nodes[0].Status.Conditions[0].Status).To(Equal(v1.ConditionTrue))
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g.Expect(nodes[0].Status.NodeInfo.KubeletVersion).To(Equal("1.9.10"))
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g.Expect(nodes[1].Name).To(Equal("k8s-agentpool3-1234"))
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g.Expect(nodes[1].Status.Conditions[0].Type).To(Equal(v1.NodeMemoryPressure))
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g.Expect(nodes[1].Status.Conditions[0].Status).To(Equal(v1.ConditionTrue))
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g.Expect(nodes[1].Status.NodeInfo.KubeletVersion).To(Equal("1.9.9"))
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// waiting for more nodes than the API returns should timeout
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nodes, err = GetNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout, "", 3)
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var mostRecentGetNodesErr error
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g.Expect(err).NotTo(BeNil())
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g.Expect(err.Error()).To(Equal(fmt.Sprintf("GetAllNodes timed out: %s\n", mostRecentGetNodesErr)))
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g.Expect(nodes).To(BeNil())
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// waiting for fewer nodes than the API returns should timeout
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nodes, err = GetNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout, "", 1)
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g.Expect(err).NotTo(BeNil())
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g.Expect(err.Error()).To(Equal(fmt.Sprintf("GetAllNodes timed out: %s\n", mostRecentGetNodesErr)))
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g.Expect(nodes).To(BeNil())
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// filtering by pool name and and the waiting for the expected node count
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nodes, err = GetNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout, "agentpool3", 1)
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g.Expect(err).To(BeNil())
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g.Expect(nodes).To(HaveLen(1))
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g.Expect(nodes[0].Name).To(Equal("k8s-agentpool3-1234"))
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g.Expect(nodes[0].Status.Conditions[0].Type).To(Equal(v1.NodeMemoryPressure))
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g.Expect(nodes[0].Status.Conditions[0].Status).To(Equal(v1.ConditionTrue))
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g.Expect(nodes[0].Status.NodeInfo.KubeletVersion).To(Equal("1.9.9"))
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}
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func TestGetNodes_ShouldReturnAMeaningfulTimeoutErrorWhenK8sAPIFailsToListNodes(t *testing.T) {
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t.Parallel()
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mockClient := armhelpers.MockAKSEngineClient{MockKubernetesClient: &armhelpers.MockKubernetesClient{
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FailListNodes: true,
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}}
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logger := log.NewEntry(log.New())
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apiserverURL := "https://apiserver"
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kubeconfig := "kubeconfig"
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timeout := time.Second * 1 // set the timeout value high enough to allow for a single attempt
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nodes, err := GetNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout, "", -1)
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mostRecentGetNodesErr := errors.New("ListNodes failed")
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g := NewGomegaWithT(t)
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g.Expect(err).NotTo(BeNil())
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g.Expect(err.Error()).To(Equal(fmt.Sprintf("GetAllNodes timed out: %s\n", mostRecentGetNodesErr)))
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g.Expect(nodes).To(BeNil())
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}
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func TestGetNodes_ShouldReturnAVanillaTimeoutErrorIfOccursBeforeASingleRequest(t *testing.T) {
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t.Parallel()
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mockClient := armhelpers.MockAKSEngineClient{MockKubernetesClient: &armhelpers.MockKubernetesClient{}}
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logger := log.NewEntry(log.New())
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apiserverURL := "https://apiserver"
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kubeconfig := "kubeconfig"
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timeout := time.Second * 0 // by setting the timeout to 0 we time out immediately
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nodes, err := GetNodes(&mockClient, logger, apiserverURL, kubeconfig, timeout, "", -1)
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var mostRecentGetNodesErr error
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g := NewGomegaWithT(t)
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g.Expect(err).NotTo(BeNil())
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g.Expect(err.Error()).To(Equal(fmt.Sprintf("GetAllNodes timed out: %s\n", mostRecentGetNodesErr)))
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g.Expect(nodes).To(BeNil())
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}
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func ExamplePrintNodes() {
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var nodes []v1.Node
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node := v1.Node{}
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node.Name = fmt.Sprintf("%s-1234", common.LegacyControlPlaneVMPrefix)
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node.Status.Conditions = append(node.Status.Conditions, v1.NodeCondition{Type: v1.NodeReady, Status: v1.ConditionTrue})
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node.Status.NodeInfo.KubeletVersion = "1.10.0"
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node.Status.NodeInfo.OSImage = "my-os"
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node.Status.NodeInfo.KernelVersion = "3.1.4"
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nodes = append(nodes, node)
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PrintNodes(nodes)
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// Output: NODE STATUS VERSION OS KERNEL
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// k8s-master-1234 Ready 1.10.0 my-os 3.1.4
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}
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