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machinehealthcheck_controller_test.go
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/*
Copyright 2020 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package controllers
import (
"context"
"path/filepath"
"testing"
"time"
. "github.com/onsi/ginkgo"
. "github.com/onsi/ginkgo/extensions/table"
. "github.com/onsi/gomega"
"github.com/pkg/errors"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/intstr"
"k8s.io/client-go/kubernetes/scheme"
clusterv1 "sigs.k8s.io/cluster-api/api/v1alpha3"
"sigs.k8s.io/cluster-api/controllers/external"
controlplanev1 "sigs.k8s.io/cluster-api/controlplane/kubeadm/api/v1alpha3"
"sigs.k8s.io/cluster-api/util"
"sigs.k8s.io/cluster-api/util/kubeconfig"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/envtest"
"sigs.k8s.io/controller-runtime/pkg/handler"
"sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/manager"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
)
const defaultNamespaceName = "default"
var _ = Describe("MachineHealthCheck Reconciler", func() {
var namespace *corev1.Namespace
var testCluster *clusterv1.Cluster
var clusterName = "test-cluster"
var clusterKubeconfigName = "test-cluster-kubeconfig"
var namespaceName string
BeforeEach(func() {
namespace = &corev1.Namespace{ObjectMeta: metav1.ObjectMeta{GenerateName: "mhc-test-"}}
testCluster = &clusterv1.Cluster{ObjectMeta: metav1.ObjectMeta{Name: clusterName}}
By("Ensuring the namespace exists")
Expect(k8sClient.Create(ctx, namespace)).To(Succeed())
namespaceName = namespace.Name
By("Creating the Cluster")
testCluster.Namespace = namespaceName
Expect(k8sClient.Create(ctx, testCluster)).To(Succeed())
By("Creating the remote Cluster kubeconfig")
Expect(kubeconfig.CreateEnvTestSecret(k8sClient, cfg, testCluster)).To(Succeed())
})
AfterEach(func() {
By("Deleting any Nodes")
Expect(cleanupTestNodes(ctx, k8sClient)).To(Succeed())
By("Deleting any Machines")
Expect(cleanupTestMachines(ctx, k8sClient)).To(Succeed())
By("Deleting any MachineHealthChecks")
Expect(cleanupTestMachineHealthChecks(ctx, k8sClient)).To(Succeed())
By("Deleting the Cluster")
Expect(k8sClient.Delete(ctx, testCluster)).To(Succeed())
By("Deleting the remote Cluster kubeconfig")
remoteClusterKubeconfig := &corev1.Secret{ObjectMeta: metav1.ObjectMeta{Namespace: namespaceName, Name: clusterKubeconfigName}}
Expect(k8sClient.Delete(ctx, remoteClusterKubeconfig)).To(Succeed())
By("Deleting the Namespace")
Expect(k8sClient.Delete(ctx, namespace)).To(Succeed())
// Ensure the cluster is actually gone before moving on
Eventually(func() error {
c := &clusterv1.Cluster{}
err := k8sClient.Get(ctx, client.ObjectKey{Namespace: namespaceName, Name: clusterName}, c)
if err != nil && apierrors.IsNotFound(err) {
return nil
} else if err != nil {
return err
}
return errors.New("Cluster not yet deleted")
}, timeout).Should(Succeed())
})
type labelTestCase struct {
original map[string]string
expected map[string]string
}
DescribeTable("should ensure the cluster-name label is correct",
func(ltc labelTestCase) {
By("Creating a MachineHealthCheck")
mhcToCreate := &clusterv1.MachineHealthCheck{
ObjectMeta: metav1.ObjectMeta{
Name: "test-mhc",
Namespace: namespaceName,
Labels: ltc.original,
},
Spec: clusterv1.MachineHealthCheckSpec{
ClusterName: clusterName,
UnhealthyConditions: []clusterv1.UnhealthyCondition{
{
Type: corev1.NodeReady,
Status: corev1.ConditionUnknown,
Timeout: metav1.Duration{Duration: 5 * time.Minute},
},
},
},
}
mhcToCreate.Default()
Expect(k8sClient.Create(ctx, mhcToCreate)).To(Succeed())
Eventually(func() map[string]string {
mhc := &clusterv1.MachineHealthCheck{}
err := k8sClient.Get(ctx, util.ObjectKey(mhcToCreate), mhc)
if err != nil {
return nil
}
return mhc.GetLabels()
}, timeout).Should(Equal(ltc.expected))
},
Entry("when no existing labels exist", labelTestCase{
original: map[string]string{},
expected: map[string]string{clusterv1.ClusterLabelName: clusterName},
}),
Entry("when the label has the wrong value", labelTestCase{
original: map[string]string{clusterv1.ClusterLabelName: "wrong"},
expected: map[string]string{clusterv1.ClusterLabelName: clusterName},
}),
Entry("without modifying other labels", labelTestCase{
original: map[string]string{"other": "label"},
expected: map[string]string{"other": "label", clusterv1.ClusterLabelName: clusterName},
}),
)
type ownerReferenceTestCase struct {
original []metav1.OwnerReference
// Use a function so that runtime information can be populated (eg UID)
expected func() []metav1.OwnerReference
}
DescribeTable("should ensure an owner reference is present",
func(ortc ownerReferenceTestCase) {
By("Creating a MachineHealthCheck")
mhcToCreate := &clusterv1.MachineHealthCheck{
ObjectMeta: metav1.ObjectMeta{
Name: "test-mhc",
Namespace: namespaceName,
OwnerReferences: ortc.original,
},
Spec: clusterv1.MachineHealthCheckSpec{
ClusterName: clusterName,
UnhealthyConditions: []clusterv1.UnhealthyCondition{
{
Type: corev1.NodeReady,
Status: corev1.ConditionUnknown,
Timeout: metav1.Duration{Duration: 5 * time.Minute},
},
},
},
}
mhcToCreate.Default()
Expect(k8sClient.Create(ctx, mhcToCreate)).To(Succeed())
Eventually(func() []metav1.OwnerReference {
mhc := &clusterv1.MachineHealthCheck{}
err := k8sClient.Get(ctx, util.ObjectKey(mhcToCreate), mhc)
if err != nil {
return []metav1.OwnerReference{}
}
return mhc.GetOwnerReferences()
}, timeout).Should(ConsistOf(ortc.expected()))
},
Entry("when no existing owner references exist", ownerReferenceTestCase{
original: []metav1.OwnerReference{},
expected: func() []metav1.OwnerReference {
return []metav1.OwnerReference{ownerReferenceForCluster(ctx, testCluster)}
},
}),
Entry("when modifying existing owner references", ownerReferenceTestCase{
original: []metav1.OwnerReference{{Kind: "Foo", APIVersion: "foo.bar.baz/v1", Name: "Bar", UID: "12345"}},
expected: func() []metav1.OwnerReference {
return []metav1.OwnerReference{{Kind: "Foo", APIVersion: "foo.bar.baz/v1", Name: "Bar", UID: "12345"}, ownerReferenceForCluster(ctx, testCluster)}
},
}),
)
Context("when reconciling a MachineHealthCheck", func() {
// createMachine creates a machine while also maintaining the status that
// has been set on it
createMachine := func(m *clusterv1.Machine) {
status := m.Status
Expect(k8sClient.Create(ctx, m)).To(Succeed())
key := util.ObjectKey(m)
Eventually(func() error {
if err := k8sClient.Get(ctx, key, m); err != nil {
return err
}
m.Status = status
return k8sClient.Status().Update(ctx, m)
}, timeout).Should(Succeed())
}
type reconcileTestCase struct {
mhc func() *clusterv1.MachineHealthCheck
nodes func() []*corev1.Node
machines func() []*clusterv1.Machine
expectRemediated func() []*clusterv1.Machine
expectNotRemediated func() []*clusterv1.Machine
expectedStatus clusterv1.MachineHealthCheckStatus
}
var labels = map[string]string{"cluster": clusterName, "nodepool": "foo"}
var controlPlaneLabels = map[string]string{"cluster": clusterName, "nodepool": "foo", clusterv1.MachineControlPlaneLabelName: ""}
var machineSetOR = metav1.OwnerReference{APIVersion: clusterv1.GroupVersion.String(), Kind: "MachineSet", Name: "machineset", UID: "machinset"}
var controlPlaneOR = metav1.OwnerReference{APIVersion: controlplanev1.GroupVersion.String(), Kind: "KubeadmControlPlane", Name: "controlplane", UID: "controlplane"}
var healthyNodeCondition = corev1.NodeCondition{Type: corev1.NodeReady, Status: corev1.ConditionTrue}
var unhealthyNodeCondition = corev1.NodeCondition{Type: corev1.NodeReady, Status: corev1.ConditionUnknown, LastTransitionTime: metav1.NewTime(time.Now().Add(-10 * time.Minute))}
// Objects for use in test cases below
var testMHC *clusterv1.MachineHealthCheck
var healthyNode1, healthyNode2, unhealthyNode1, unhealthyNode2, controlPlaneNode1, unhealthyControlPlaneNode1, unlabelledNode *corev1.Node
var healthyMachine1, healthyMachine2, unhealthyMachine1, unhealthyMachine2, noNodeRefMachine1, noNodeRefMachine2, nodeGoneMachine1, controlPlaneMachine1, unhealthyControlPlaneMachine1, unlabelledMachine *clusterv1.Machine
BeforeEach(func() {
// Set up objects for test cases before each test
By("Setting up resources")
testMHC = newTestMachineHealthCheck("test-mhc", namespaceName, clusterName, labels)
maxUnhealthy := intstr.Parse("40%")
testMHC.Spec.MaxUnhealthy = &maxUnhealthy
testMHC.Default()
healthyNode1 = newTestNode("healthy-node-1")
healthyNode1.Status.Conditions = []corev1.NodeCondition{healthyNodeCondition}
healthyMachine1 = newTestMachine("healthy-machine-1", namespaceName, clusterName, healthyNode1.Name, labels)
healthyMachine1.SetOwnerReferences([]metav1.OwnerReference{machineSetOR})
healthyNode2 = newTestNode("healthy-node-2")
healthyNode2.Status.Conditions = []corev1.NodeCondition{healthyNodeCondition}
healthyMachine2 = newTestMachine("healthy-machine-2", namespaceName, clusterName, healthyNode2.Name, labels)
healthyMachine2.SetOwnerReferences([]metav1.OwnerReference{machineSetOR})
unhealthyNode1 = newTestNode("unhealthy-node-1")
unhealthyNode1.Status.Conditions = []corev1.NodeCondition{unhealthyNodeCondition}
unhealthyMachine1 = newTestMachine("unhealthy-machine-1", namespaceName, clusterName, unhealthyNode1.Name, labels)
unhealthyMachine1.SetOwnerReferences([]metav1.OwnerReference{machineSetOR})
unhealthyNode2 = newTestNode("unhealthy-node-2")
unhealthyNode2.Status.Conditions = []corev1.NodeCondition{unhealthyNodeCondition}
unhealthyMachine2 = newTestMachine("unhealthy-machine-2", namespaceName, clusterName, unhealthyNode2.Name, labels)
unhealthyMachine2.SetOwnerReferences([]metav1.OwnerReference{machineSetOR})
noNodeRefMachine1 = newTestMachine("no-node-ref-machine-1", namespaceName, clusterName, "", labels)
noNodeRefMachine1.Status.NodeRef = nil
noNodeRefMachine1.SetOwnerReferences([]metav1.OwnerReference{machineSetOR})
now := metav1.NewTime(time.Now())
noNodeRefMachine1.Status.LastUpdated = &now
noNodeRefMachine2 = newTestMachine("no-node-ref-machine-2", namespaceName, clusterName, "", labels)
noNodeRefMachine2.Status.NodeRef = nil
noNodeRefMachine2.SetOwnerReferences([]metav1.OwnerReference{machineSetOR})
lastUpdatedTwiceNodeStartupTimeout := metav1.NewTime(time.Now().Add(-2 * testMHC.Spec.NodeStartupTimeout.Duration))
noNodeRefMachine2.Status.LastUpdated = &lastUpdatedTwiceNodeStartupTimeout
nodeGoneMachine1 = newTestMachine("node-gone-machine-1", namespaceName, clusterName, "node-gone-node-1", labels)
nodeGoneMachine1.SetOwnerReferences([]metav1.OwnerReference{machineSetOR})
controlPlaneNode1 = newTestNode("control-plane-node-1")
controlPlaneNode1.Status.Conditions = []corev1.NodeCondition{healthyNodeCondition}
controlPlaneNode1.Labels = map[string]string{nodeControlPlaneLabel: ""}
controlPlaneMachine1 = newTestMachine("control-plane-machine-1", namespaceName, clusterName, controlPlaneNode1.Name, controlPlaneLabels)
controlPlaneMachine1.SetOwnerReferences([]metav1.OwnerReference{controlPlaneOR})
unhealthyControlPlaneNode1 = newTestNode("unhealthy-control-plane-node-1")
unhealthyControlPlaneNode1.Status.Conditions = []corev1.NodeCondition{unhealthyNodeCondition}
unhealthyControlPlaneNode1.Labels = map[string]string{nodeControlPlaneLabel: ""}
unhealthyControlPlaneMachine1 = newTestMachine("unhealthy-control-plane-machine-1", namespaceName, clusterName, unhealthyControlPlaneNode1.Name, controlPlaneLabels)
unhealthyControlPlaneMachine1.SetOwnerReferences([]metav1.OwnerReference{controlPlaneOR})
unlabelledNode = newTestNode("unlabelled-node")
unlabelledMachine = newTestMachine("unlabelled-machine", namespaceName, clusterName, unlabelledNode.Name, map[string]string{})
})
DescribeTable("should remediate unhealthy nodes",
func(rtc *reconcileTestCase) {
By("Creating Nodes")
for _, n := range rtc.nodes() {
node := *n
Expect(k8sClient.Create(ctx, &node)).To(Succeed())
}
By("Creating Machines")
for _, m := range rtc.machines() {
machine := *m
createMachine(&machine)
}
By("Creating a MachineHealthCheck")
mhc := rtc.mhc()
mhc.Default()
Expect(k8sClient.Create(ctx, mhc)).To(Succeed())
By("Verifying the status has been updated")
Eventually(func() clusterv1.MachineHealthCheckStatus {
mhc := &clusterv1.MachineHealthCheck{}
if err := k8sClient.Get(ctx, types.NamespacedName{Namespace: namespaceName, Name: rtc.mhc().Name}, mhc); err != nil {
return clusterv1.MachineHealthCheckStatus{}
}
return mhc.Status
}, timeout).Should(Equal(rtc.expectedStatus))
// Status has been updated, a reconcile has occurred, should no longer need async assertions
By("Verifying Machine remediations")
for _, m := range rtc.expectNotRemediated() {
machine := &clusterv1.Machine{}
key := types.NamespacedName{Namespace: m.Namespace, Name: m.Name}
Expect(k8sClient.Get(ctx, key, machine)).To(Succeed())
Expect(machine.GetDeletionTimestamp().IsZero()).To(BeTrue())
}
for _, m := range rtc.expectRemediated() {
machine := &clusterv1.Machine{}
key := types.NamespacedName{Namespace: m.Namespace, Name: m.Name}
Expect(k8sClient.Get(ctx, key, machine)).ToNot(Succeed())
}
},
Entry("with healthy Machines", &reconcileTestCase{
mhc: func() *clusterv1.MachineHealthCheck { return testMHC },
nodes: func() []*corev1.Node { return []*corev1.Node{healthyNode1, healthyNode2} },
machines: func() []*clusterv1.Machine { return []*clusterv1.Machine{healthyMachine1, healthyMachine2} },
expectRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{} },
expectNotRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{healthyMachine1, healthyMachine2} },
expectedStatus: clusterv1.MachineHealthCheckStatus{ExpectedMachines: 2, CurrentHealthy: 2},
}),
Entry("with an unhealthy Machine", &reconcileTestCase{
mhc: func() *clusterv1.MachineHealthCheck { return testMHC },
nodes: func() []*corev1.Node { return []*corev1.Node{healthyNode1, healthyNode2, unhealthyNode1} },
machines: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, healthyMachine2, unhealthyMachine1}
},
expectRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{unhealthyMachine1} },
expectNotRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{healthyMachine1, healthyMachine2} },
expectedStatus: clusterv1.MachineHealthCheckStatus{ExpectedMachines: 3, CurrentHealthy: 2},
}),
Entry("when the unhealthy Machines exceed MaxUnhealthy", &reconcileTestCase{
mhc: func() *clusterv1.MachineHealthCheck { return testMHC },
nodes: func() []*corev1.Node { return []*corev1.Node{healthyNode1, unhealthyNode1, unhealthyNode2} },
machines: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, unhealthyMachine1, unhealthyMachine2}
},
expectRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{} },
expectNotRemediated: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, unhealthyMachine1, unhealthyMachine2}
},
expectedStatus: clusterv1.MachineHealthCheckStatus{ExpectedMachines: 3, CurrentHealthy: 1},
}),
Entry("when a Machine has no Node ref for less than the NodeStartupTimeout", &reconcileTestCase{
mhc: func() *clusterv1.MachineHealthCheck { return testMHC },
nodes: func() []*corev1.Node { return []*corev1.Node{healthyNode1, healthyNode2} },
machines: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, healthyMachine2, noNodeRefMachine1}
},
expectRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{} },
expectNotRemediated: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, healthyMachine2, noNodeRefMachine1}
},
expectedStatus: clusterv1.MachineHealthCheckStatus{ExpectedMachines: 3, CurrentHealthy: 2},
}),
Entry("when a Machine has no Node ref for longer than the NodeStartupTimeout", &reconcileTestCase{
mhc: func() *clusterv1.MachineHealthCheck { return testMHC },
nodes: func() []*corev1.Node { return []*corev1.Node{healthyNode1, healthyNode2} },
machines: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, healthyMachine2, noNodeRefMachine2}
},
expectRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{noNodeRefMachine2} },
expectNotRemediated: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, healthyMachine2}
},
expectedStatus: clusterv1.MachineHealthCheckStatus{ExpectedMachines: 3, CurrentHealthy: 2},
}),
Entry("when a Machine's Node has gone away", &reconcileTestCase{
mhc: func() *clusterv1.MachineHealthCheck { return testMHC },
nodes: func() []*corev1.Node { return []*corev1.Node{healthyNode1, healthyNode2} },
machines: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, healthyMachine2, nodeGoneMachine1}
},
expectRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{nodeGoneMachine1} },
expectNotRemediated: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, healthyMachine2}
},
expectedStatus: clusterv1.MachineHealthCheckStatus{ExpectedMachines: 3, CurrentHealthy: 2},
}),
Entry("with a healthy control plane Machine", &reconcileTestCase{
mhc: func() *clusterv1.MachineHealthCheck { return testMHC },
nodes: func() []*corev1.Node { return []*corev1.Node{healthyNode1, healthyNode2, controlPlaneNode1} },
machines: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, healthyMachine2, controlPlaneMachine1}
},
expectRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{} },
expectNotRemediated: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, healthyMachine2, controlPlaneMachine1}
},
expectedStatus: clusterv1.MachineHealthCheckStatus{ExpectedMachines: 3, CurrentHealthy: 3},
}),
Entry("with an unhealthy control plane Machine", &reconcileTestCase{
mhc: func() *clusterv1.MachineHealthCheck { return testMHC },
nodes: func() []*corev1.Node {
return []*corev1.Node{healthyNode1, healthyNode2, controlPlaneNode1, unhealthyControlPlaneNode1}
},
machines: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, healthyMachine2, controlPlaneMachine1, unhealthyControlPlaneMachine1}
},
expectRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{} },
expectNotRemediated: func() []*clusterv1.Machine {
return []*clusterv1.Machine{healthyMachine1, healthyMachine2, controlPlaneMachine1, unhealthyControlPlaneMachine1}
},
expectedStatus: clusterv1.MachineHealthCheckStatus{ExpectedMachines: 4, CurrentHealthy: 3},
}),
Entry("when no Machines are matched by the selector", &reconcileTestCase{
mhc: func() *clusterv1.MachineHealthCheck { return testMHC },
nodes: func() []*corev1.Node { return []*corev1.Node{unlabelledNode} },
machines: func() []*clusterv1.Machine { return []*clusterv1.Machine{unlabelledMachine} },
expectRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{} },
expectNotRemediated: func() []*clusterv1.Machine { return []*clusterv1.Machine{unlabelledMachine} },
expectedStatus: clusterv1.MachineHealthCheckStatus{ExpectedMachines: 0, CurrentHealthy: 0},
}),
)
})
})
func cleanupTestMachineHealthChecks(ctx context.Context, c client.Client) error {
mhcList := &clusterv1.MachineHealthCheckList{}
if err := c.List(ctx, mhcList); err != nil {
return err
}
for _, mhc := range mhcList.Items {
m := mhc
if err := c.Delete(ctx, &m); err != nil {
return err
}
}
return nil
}
func cleanupTestMachines(ctx context.Context, c client.Client) error {
machineList := &clusterv1.MachineList{}
if err := c.List(ctx, machineList); err != nil {
return err
}
for _, machine := range machineList.Items {
m := machine
if err := c.Delete(ctx, &m); err != nil && apierrors.IsNotFound(err) {
return nil
} else if err != nil {
return err
}
Eventually(func() error {
if err := c.Get(ctx, util.ObjectKey(&m), &m); err != nil && apierrors.IsNotFound(err) {
return nil
} else if err != nil {
return err
}
m.SetFinalizers([]string{})
return c.Update(ctx, &m)
}, timeout).Should(Succeed())
}
return nil
}
func cleanupTestNodes(ctx context.Context, c client.Client) error {
nodeList := &corev1.NodeList{}
if err := c.List(ctx, nodeList); err != nil {
return err
}
for _, node := range nodeList.Items {
n := node
if err := c.Delete(ctx, &n); err != nil {
return err
}
}
return nil
}
func ownerReferenceForCluster(ctx context.Context, c *clusterv1.Cluster) metav1.OwnerReference {
// Fetch the cluster to populate the UID
cc := &clusterv1.Cluster{}
Expect(k8sClient.Get(ctx, util.ObjectKey(c), cc)).To(Succeed())
return metav1.OwnerReference{
APIVersion: clusterv1.GroupVersion.String(),
Kind: "Cluster",
Name: cc.Name,
UID: cc.UID,
}
}
func TestClusterToMachineHealthCheck(t *testing.T) {
// This test sets up a proper test env to allow testing of the cache index
// that is used as part of the clusterToMachineHealthCheck map function
// BEGIN: Set up test environment
g := NewWithT(t)
testEnv = &envtest.Environment{
CRDs: []runtime.Object{
external.TestGenericBootstrapCRD,
external.TestGenericBootstrapTemplateCRD,
external.TestGenericInfrastructureCRD,
external.TestGenericInfrastructureTemplateCRD,
},
CRDDirectoryPaths: []string{filepath.Join("..", "config", "crd", "bases")},
}
var err error
cfg, err := testEnv.Start()
g.Expect(err).ToNot(HaveOccurred())
g.Expect(cfg).ToNot(BeNil())
defer func() {
g.Expect(testEnv.Stop()).To(Succeed())
}()
g.Expect(clusterv1.AddToScheme(scheme.Scheme)).To(Succeed())
mgr, err = manager.New(cfg, manager.Options{
Scheme: scheme.Scheme,
MetricsBindAddress: "0",
})
g.Expect(err).ToNot(HaveOccurred())
r := &MachineHealthCheckReconciler{
Log: log.Log,
Client: mgr.GetClient(),
}
g.Expect(r.SetupWithManager(mgr, controller.Options{})).To(Succeed())
doneMgr := make(chan struct{})
go func() {
g.Expect(mgr.Start(doneMgr)).To(Succeed())
}()
defer close(doneMgr)
// END: setup test environment
namespace := defaultNamespaceName
clusterName := "test-cluster"
labels := make(map[string]string)
mhc1 := newTestMachineHealthCheck("mhc1", namespace, clusterName, labels)
mhc1Req := reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mhc1.Namespace, Name: mhc1.Name}}
mhc2 := newTestMachineHealthCheck("mhc2", namespace, clusterName, labels)
mhc2Req := reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mhc2.Namespace, Name: mhc2.Name}}
mhc3 := newTestMachineHealthCheck("mhc3", namespace, "othercluster", labels)
mhc4 := newTestMachineHealthCheck("mhc4", "othernamespace", clusterName, labels)
cluster1 := &clusterv1.Cluster{
ObjectMeta: metav1.ObjectMeta{
Name: clusterName,
Namespace: namespace,
},
}
testCases := []struct {
name string
toCreate []clusterv1.MachineHealthCheck
object handler.MapObject
expected []reconcile.Request
}{
{
name: "when the object passed isn't a cluster",
toCreate: []clusterv1.MachineHealthCheck{*mhc1},
object: handler.MapObject{
Object: &clusterv1.Machine{},
},
expected: []reconcile.Request{},
},
{
name: "when a MachineHealthCheck exists for the Cluster in the same namespace",
toCreate: []clusterv1.MachineHealthCheck{*mhc1},
object: handler.MapObject{
Object: cluster1,
},
expected: []reconcile.Request{mhc1Req},
},
{
name: "when 2 MachineHealthChecks exists for the Cluster in the same namespace",
toCreate: []clusterv1.MachineHealthCheck{*mhc1, *mhc2},
object: handler.MapObject{
Object: cluster1,
},
expected: []reconcile.Request{mhc1Req, mhc2Req},
},
{
name: "when a MachineHealthCheck exists for another Cluster in the same namespace",
toCreate: []clusterv1.MachineHealthCheck{*mhc3},
object: handler.MapObject{
Object: cluster1,
},
expected: []reconcile.Request{},
},
{
name: "when a MachineHealthCheck exists for another Cluster in another namespace",
toCreate: []clusterv1.MachineHealthCheck{*mhc4},
object: handler.MapObject{
Object: cluster1,
},
expected: []reconcile.Request{},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
gs := NewWithT(t)
ctx := context.Background()
for _, obj := range tc.toCreate {
o := obj
gs.Expect(r.Client.Create(ctx, &o)).To(Succeed())
defer func() {
gs.Expect(r.Client.Delete(ctx, &o)).To(Succeed())
}()
// Check the cache is populated
getObj := func() error {
return r.Client.Get(ctx, util.ObjectKey(&o), &clusterv1.MachineHealthCheck{})
}
gs.Eventually(getObj, timeout).Should(Succeed())
}
got := r.clusterToMachineHealthCheck(tc.object)
gs.Expect(got).To(ConsistOf(tc.expected))
})
}
}
func TestIndexMachineHealthCheckByClusterName(t *testing.T) {
r := &MachineHealthCheckReconciler{
Log: log.Log,
}
testCases := []struct {
name string
object runtime.Object
expected []string
}{
{
name: "when the MachineHealthCheck has no ClusterName",
object: &clusterv1.MachineHealthCheck{},
expected: []string{""},
},
{
name: "when the MachineHealthCheck has a ClusterName",
object: &clusterv1.MachineHealthCheck{
Spec: clusterv1.MachineHealthCheckSpec{
ClusterName: "test-cluster",
},
},
expected: []string{"test-cluster"},
},
{
name: "when the object passed is not a MachineHealthCheck",
object: &corev1.Node{},
expected: []string{},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
g := NewWithT(t)
got := r.indexMachineHealthCheckByClusterName(tc.object)
g.Expect(got).To(ConsistOf(tc.expected))
})
}
}
func newTestMachineHealthCheck(name, namespace, cluster string, labels map[string]string) *clusterv1.MachineHealthCheck {
return &clusterv1.MachineHealthCheck{
ObjectMeta: metav1.ObjectMeta{
Name: name,
Namespace: namespace,
Labels: labels,
},
Spec: clusterv1.MachineHealthCheckSpec{
Selector: metav1.LabelSelector{
MatchLabels: labels,
},
ClusterName: cluster,
UnhealthyConditions: []clusterv1.UnhealthyCondition{
{
Type: corev1.NodeReady,
Status: corev1.ConditionUnknown,
Timeout: metav1.Duration{Duration: 5 * time.Minute},
},
},
},
}
}
func TestMachineToMachineHealthCheck(t *testing.T) {
// This test sets up a proper test env to allow testing of the cache index
// that is used as part of the clusterToMachineHealthCheck map function
// BEGIN: Set up test environment
g := NewWithT(t)
testEnv = &envtest.Environment{
CRDs: []runtime.Object{
external.TestGenericBootstrapCRD,
external.TestGenericBootstrapTemplateCRD,
external.TestGenericInfrastructureCRD,
external.TestGenericInfrastructureTemplateCRD,
},
CRDDirectoryPaths: []string{filepath.Join("..", "config", "crd", "bases")},
}
var err error
cfg, err := testEnv.Start()
g.Expect(err).ToNot(HaveOccurred())
g.Expect(cfg).ToNot(BeNil())
defer func() {
g.Expect(testEnv.Stop()).To(Succeed())
}()
g.Expect(clusterv1.AddToScheme(scheme.Scheme)).To(Succeed())
mgr, err = manager.New(cfg, manager.Options{
Scheme: scheme.Scheme,
MetricsBindAddress: "0",
})
g.Expect(err).ToNot(HaveOccurred())
r := &MachineHealthCheckReconciler{
Log: log.Log,
Client: mgr.GetClient(),
}
g.Expect(r.SetupWithManager(mgr, controller.Options{})).To(Succeed())
doneMgr := make(chan struct{})
go func() {
g.Expect(mgr.Start(doneMgr)).To(Succeed())
}()
defer close(doneMgr)
// END: setup test environment
namespace := defaultNamespaceName
clusterName := "test-cluster"
nodeName := "node1"
labels := map[string]string{"cluster": "foo", "nodepool": "bar"}
mhc1 := newTestMachineHealthCheck("mhc1", namespace, clusterName, labels)
mhc1Req := reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mhc1.Namespace, Name: mhc1.Name}}
mhc2 := newTestMachineHealthCheck("mhc2", namespace, clusterName, labels)
mhc2Req := reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mhc2.Namespace, Name: mhc2.Name}}
mhc3 := newTestMachineHealthCheck("mhc3", namespace, clusterName, map[string]string{"cluster": "foo", "nodepool": "other"})
mhc4 := newTestMachineHealthCheck("mhc4", "othernamespace", clusterName, labels)
machine1 := newTestMachine("machine1", namespace, clusterName, nodeName, labels)
testCases := []struct {
name string
toCreate []clusterv1.MachineHealthCheck
object handler.MapObject
expected []reconcile.Request
}{
{
name: "when the object passed isn't a machine",
toCreate: []clusterv1.MachineHealthCheck{*mhc1},
object: handler.MapObject{
Object: &clusterv1.Cluster{},
},
expected: []reconcile.Request{},
},
{
name: "when a MachineHealthCheck matches labels for the Machine in the same namespace",
toCreate: []clusterv1.MachineHealthCheck{*mhc1},
object: handler.MapObject{
Object: machine1,
},
expected: []reconcile.Request{mhc1Req},
},
{
name: "when 2 MachineHealthChecks match labels for the Machine in the same namespace",
toCreate: []clusterv1.MachineHealthCheck{*mhc1, *mhc2},
object: handler.MapObject{
Object: machine1,
},
expected: []reconcile.Request{mhc1Req, mhc2Req},
},
{
name: "when a MachineHealthCheck does not match labels for the Machine in the same namespace",
toCreate: []clusterv1.MachineHealthCheck{*mhc3},
object: handler.MapObject{
Object: machine1,
},
expected: []reconcile.Request{},
},
{
name: "when a MachineHealthCheck matches labels for the Machine in another namespace",
toCreate: []clusterv1.MachineHealthCheck{*mhc4},
object: handler.MapObject{
Object: machine1,
},
expected: []reconcile.Request{},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
gs := NewWithT(t)
ctx := context.Background()
for _, obj := range tc.toCreate {
o := obj
gs.Expect(r.Client.Create(ctx, &o)).To(Succeed())
defer func() {
gs.Expect(r.Client.Delete(ctx, &o)).To(Succeed())
}()
// Check the cache is populated
getObj := func() error {
return r.Client.Get(ctx, util.ObjectKey(&o), &clusterv1.MachineHealthCheck{})
}
gs.Eventually(getObj, timeout).Should(Succeed())
}
got := r.machineToMachineHealthCheck(tc.object)
gs.Expect(got).To(ConsistOf(tc.expected))
})
}
}
func TestNodeToMachineHealthCheck(t *testing.T) {
// This test sets up a proper test env to allow testing of the cache index
// that is used as part of the clusterToMachineHealthCheck map function
// BEGIN: Set up test environment
g := NewWithT(t)
testEnv = &envtest.Environment{
CRDs: []runtime.Object{
external.TestGenericBootstrapCRD,
external.TestGenericBootstrapTemplateCRD,
external.TestGenericInfrastructureCRD,
external.TestGenericInfrastructureTemplateCRD,
},
CRDDirectoryPaths: []string{filepath.Join("..", "config", "crd", "bases")},
}
var err error
cfg, err := testEnv.Start()
g.Expect(err).ToNot(HaveOccurred())
g.Expect(cfg).ToNot(BeNil())
defer func() {
g.Expect(testEnv.Stop()).To(Succeed())
}()
g.Expect(clusterv1.AddToScheme(scheme.Scheme)).To(Succeed())
mgr, err = manager.New(cfg, manager.Options{
Scheme: scheme.Scheme,
MetricsBindAddress: "0",
})
g.Expect(err).ToNot(HaveOccurred())
r := &MachineHealthCheckReconciler{
Log: log.Log,
Client: mgr.GetClient(),
}
g.Expect(r.SetupWithManager(mgr, controller.Options{})).To(Succeed())
doneMgr := make(chan struct{})
go func() {
g.Expect(mgr.Start(doneMgr)).To(Succeed())
}()
defer close(doneMgr)
// END: setup test environment
namespace := defaultNamespaceName
clusterName := "test-cluster"
nodeName := "node1"
labels := map[string]string{"cluster": "foo", "nodepool": "bar"}
mhc1 := newTestMachineHealthCheck("mhc1", namespace, clusterName, labels)
mhc1Req := reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mhc1.Namespace, Name: mhc1.Name}}
mhc2 := newTestMachineHealthCheck("mhc2", namespace, clusterName, labels)
mhc2Req := reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mhc2.Namespace, Name: mhc2.Name}}
mhc3 := newTestMachineHealthCheck("mhc3", namespace, "othercluster", labels)
mhc4 := newTestMachineHealthCheck("mhc4", "othernamespace", clusterName, labels)
machine1 := newTestMachine("machine1", namespace, clusterName, nodeName, labels)
machine2 := newTestMachine("machine2", namespace, clusterName, nodeName, labels)
node1 := &corev1.Node{
ObjectMeta: metav1.ObjectMeta{
Name: nodeName,
},
}
testCases := []struct {
name string
mhcToCreate []clusterv1.MachineHealthCheck
mToCreate []clusterv1.Machine
object handler.MapObject
expected []reconcile.Request
}{
{
name: "when the object passed isn't a Node",
mhcToCreate: []clusterv1.MachineHealthCheck{*mhc1},
mToCreate: []clusterv1.Machine{*machine1},
object: handler.MapObject{
Object: &clusterv1.Machine{},
},
expected: []reconcile.Request{},
},
{
name: "when no Machine exists for the Node",
mhcToCreate: []clusterv1.MachineHealthCheck{*mhc1},
mToCreate: []clusterv1.Machine{},
object: handler.MapObject{
Object: node1,
},
expected: []reconcile.Request{},
},
{
name: "when two Machines exist for the Node",
mhcToCreate: []clusterv1.MachineHealthCheck{*mhc1},
mToCreate: []clusterv1.Machine{*machine1, *machine2},
object: handler.MapObject{
Object: node1,
},
expected: []reconcile.Request{},
},
{
name: "when no MachineHealthCheck exists for the Node in the Machine's namespace",
mhcToCreate: []clusterv1.MachineHealthCheck{*mhc4},
mToCreate: []clusterv1.Machine{*machine1},
object: handler.MapObject{
Object: node1,
},
expected: []reconcile.Request{},
},
{
name: "when a MachineHealthCheck exists for the Node in the Machine's namespace",
mhcToCreate: []clusterv1.MachineHealthCheck{*mhc1},
mToCreate: []clusterv1.Machine{*machine1},
object: handler.MapObject{
Object: node1,
},
expected: []reconcile.Request{mhc1Req},
},
{
name: "when two MachineHealthChecks exist for the Node in the Machine's namespace",
mhcToCreate: []clusterv1.MachineHealthCheck{*mhc1, *mhc2},
mToCreate: []clusterv1.Machine{*machine1},
object: handler.MapObject{
Object: node1,
},
expected: []reconcile.Request{mhc1Req, mhc2Req},
},
{
name: "when a MachineHealthCheck exists for the Node, but not in the Machine's namespace",
mhcToCreate: []clusterv1.MachineHealthCheck{*mhc3},
mToCreate: []clusterv1.Machine{*machine1},
object: handler.MapObject{
Object: node1,
},
expected: []reconcile.Request{},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
gs := NewWithT(t)
ctx := context.Background()
for _, obj := range tc.mhcToCreate {
o := obj
gs.Expect(r.Client.Create(ctx, &o)).To(Succeed())
defer func() {
gs.Expect(r.Client.Delete(ctx, &o)).To(Succeed())
}()
// Check the cache is populated