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replicaset_controller_test.go
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package controllers
import (
"context"
"encoding/json"
"fmt"
"os"
"reflect"
"testing"
"time"
"github.com/mongodb/mongodb-kubernetes-operator/pkg/authentication/x509"
"github.com/mongodb/mongodb-kubernetes-operator/pkg/util/constants"
"github.com/mongodb/mongodb-kubernetes-operator/pkg/kube/statefulset"
"github.com/stretchr/testify/require"
apiErrors "k8s.io/apimachinery/pkg/api/errors"
"sigs.k8s.io/controller-runtime/pkg/manager"
"github.com/mongodb/mongodb-kubernetes-operator/pkg/kube/container"
"k8s.io/apimachinery/pkg/runtime"
"sigs.k8s.io/yaml"
"github.com/stretchr/objx"
k8sClient "sigs.k8s.io/controller-runtime/pkg/client"
"github.com/mongodb/mongodb-kubernetes-operator/pkg/kube/annotations"
"github.com/mongodb/mongodb-kubernetes-operator/pkg/kube/secret"
"github.com/mongodb/mongodb-kubernetes-operator/controllers/construct"
"github.com/mongodb/mongodb-kubernetes-operator/pkg/kube/probes"
"github.com/mongodb/mongodb-kubernetes-operator/pkg/automationconfig"
mdbv1 "github.com/mongodb/mongodb-kubernetes-operator/api/v1"
"github.com/mongodb/mongodb-kubernetes-operator/pkg/kube/client"
"github.com/mongodb/mongodb-kubernetes-operator/pkg/kube/resourcerequirements"
"github.com/stretchr/testify/assert"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
)
func init() {
os.Setenv(construct.AgentImageEnv, "agent-image")
}
func newTestReplicaSet() mdbv1.MongoDBCommunity {
return mdbv1.MongoDBCommunity{
ObjectMeta: metav1.ObjectMeta{
Name: "my-rs",
Namespace: "my-ns",
Annotations: map[string]string{},
},
Spec: mdbv1.MongoDBCommunitySpec{
Members: 3,
Version: "6.0.5",
Security: mdbv1.Security{
Authentication: mdbv1.Authentication{
Modes: []mdbv1.AuthMode{"SCRAM"},
},
},
},
}
}
func newTestReplicaSetWithSystemLogAndLogRotate() mdbv1.MongoDBCommunity {
return mdbv1.MongoDBCommunity{
ObjectMeta: metav1.ObjectMeta{
Name: "my-rs",
Namespace: "my-ns",
Annotations: map[string]string{},
},
Spec: mdbv1.MongoDBCommunitySpec{
Members: 3,
Version: "6.0.5",
Security: mdbv1.Security{
Authentication: mdbv1.Authentication{
Modes: []mdbv1.AuthMode{"SCRAM"},
},
},
AgentConfiguration: mdbv1.AgentConfiguration{
LogRotate: &automationconfig.CrdLogRotate{
SizeThresholdMB: "1",
},
SystemLog: &automationconfig.SystemLog{
Destination: automationconfig.File,
Path: "/tmp/test",
},
},
},
}
}
func newScramReplicaSet(users ...mdbv1.MongoDBUser) mdbv1.MongoDBCommunity {
return mdbv1.MongoDBCommunity{
ObjectMeta: metav1.ObjectMeta{
Name: "my-rs",
Namespace: "my-ns",
Annotations: map[string]string{},
},
Spec: mdbv1.MongoDBCommunitySpec{
Users: users,
Members: 3,
Version: "4.2.2",
Security: mdbv1.Security{
Authentication: mdbv1.Authentication{
Modes: []mdbv1.AuthMode{"SCRAM"},
},
},
},
}
}
func newTestReplicaSetWithTLS() mdbv1.MongoDBCommunity {
return newTestReplicaSetWithTLSCaCertificateReferences(&corev1.LocalObjectReference{
Name: "caConfigMap",
},
&corev1.LocalObjectReference{
Name: "certificateKeySecret",
})
}
func newTestReplicaSetWithTLSCaCertificateReferences(caConfigMap, caCertificateSecret *corev1.LocalObjectReference) mdbv1.MongoDBCommunity {
return mdbv1.MongoDBCommunity{
ObjectMeta: metav1.ObjectMeta{
Name: "my-rs",
Namespace: "my-ns",
Annotations: map[string]string{},
},
Spec: mdbv1.MongoDBCommunitySpec{
Members: 3,
Version: "4.2.2",
Security: mdbv1.Security{
Authentication: mdbv1.Authentication{
Modes: []mdbv1.AuthMode{"SCRAM"},
},
TLS: mdbv1.TLS{
Enabled: true,
CaConfigMap: caConfigMap,
CaCertificateSecret: caCertificateSecret,
CertificateKeySecret: corev1.LocalObjectReference{
Name: "certificateKeySecret",
},
},
},
},
}
}
func TestKubernetesResources_AreCreated(t *testing.T) {
// TODO: Create builder/yaml fixture of some type to construct MDB objects for unit tests
mdb := newTestReplicaSet()
mgr := client.NewManager(&mdb)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
s := corev1.Secret{}
err = mgr.GetClient().Get(context.TODO(), types.NamespacedName{Name: mdb.AutomationConfigSecretName(), Namespace: mdb.Namespace}, &s)
assert.NoError(t, err)
assert.Equal(t, mdb.Namespace, s.Namespace)
assert.Equal(t, mdb.AutomationConfigSecretName(), s.Name)
assert.Contains(t, s.Data, automationconfig.ConfigKey)
assert.NotEmpty(t, s.Data[automationconfig.ConfigKey])
}
func TestStatefulSet_IsCorrectlyConfigured(t *testing.T) {
t.Setenv(construct.MongodbRepoUrl, "docker.io/mongodb")
t.Setenv(construct.MongodbImageEnv, "mongodb-community-server")
mdb := newTestReplicaSet()
mgr := client.NewManager(&mdb)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
sts := appsv1.StatefulSet{}
err = mgr.GetClient().Get(context.TODO(), types.NamespacedName{Name: mdb.Name, Namespace: mdb.Namespace}, &sts)
assert.NoError(t, err)
assert.Len(t, sts.Spec.Template.Spec.Containers, 2)
agentContainer := sts.Spec.Template.Spec.Containers[1]
assert.Equal(t, construct.AgentName, agentContainer.Name)
assert.Equal(t, os.Getenv(construct.AgentImageEnv), agentContainer.Image)
expectedProbe := probes.New(construct.DefaultReadiness())
assert.True(t, reflect.DeepEqual(&expectedProbe, agentContainer.ReadinessProbe))
mongodbContainer := sts.Spec.Template.Spec.Containers[0]
assert.Equal(t, construct.MongodbName, mongodbContainer.Name)
assert.Equal(t, "docker.io/mongodb/mongodb-community-server:6.0.5-ubi8", mongodbContainer.Image)
assert.Equal(t, resourcerequirements.Defaults(), agentContainer.Resources)
acVolume, err := getVolumeByName(sts, "automation-config")
assert.NoError(t, err)
assert.NotNil(t, acVolume.Secret, "automation config should be stored in a secret!")
assert.Nil(t, acVolume.ConfigMap, "automation config should be stored in a secret, not a config map!")
}
func TestGuessEnterprise(t *testing.T) {
type testConfig struct {
setArgs func(t *testing.T)
mdb mdbv1.MongoDBCommunity
expectedEnterprise bool
}
tests := map[string]testConfig{
"No override and Community image": {
setArgs: func(t *testing.T) {
t.Setenv(construct.MongodbRepoUrl, "docker.io/mongodb")
t.Setenv(construct.MongodbImageEnv, "mongodb-community-server")
},
mdb: mdbv1.MongoDBCommunity{},
expectedEnterprise: false,
},
"No override and Enterprise image": {
setArgs: func(t *testing.T) {
t.Setenv(construct.MongodbRepoUrl, "docker.io/mongodb")
t.Setenv(construct.MongodbImageEnv, "mongodb-enterprise-server")
},
mdb: mdbv1.MongoDBCommunity{},
expectedEnterprise: true,
},
"Assuming enterprise manually": {
setArgs: func(t *testing.T) {
t.Setenv(construct.MongodbRepoUrl, "docker.io/mongodb")
t.Setenv(construct.MongodbImageEnv, "mongodb-community-server")
t.Setenv(construct.MongoDBAssumeEnterpriseEnv, "true")
},
mdb: mdbv1.MongoDBCommunity{},
expectedEnterprise: true,
},
"Assuming community manually": {
setArgs: func(t *testing.T) {
t.Setenv(construct.MongodbRepoUrl, "docker.io/mongodb")
t.Setenv(construct.MongodbImageEnv, "mongodb-enterprise-server")
t.Setenv(construct.MongoDBAssumeEnterpriseEnv, "false")
},
mdb: mdbv1.MongoDBCommunity{},
expectedEnterprise: false,
},
"Enterprise with different repo": {
setArgs: func(t *testing.T) {
t.Setenv(construct.MongodbRepoUrl, "some_other_repo.com/some_other_org")
t.Setenv(construct.MongodbImageEnv, "mongodb-enterprise-server")
},
mdb: mdbv1.MongoDBCommunity{},
expectedEnterprise: true,
},
"Community with different repo": {
setArgs: func(t *testing.T) {
t.Setenv(construct.MongodbRepoUrl, "some_other_repo.com/some_other_org")
t.Setenv(construct.MongodbImageEnv, "mongodb-community-server")
},
mdb: mdbv1.MongoDBCommunity{},
expectedEnterprise: false,
},
// This one is a corner case. We don't expect users to fall here very often as there are
// dedicated variables to control this type of behavior.
"Enterprise with StatefulSet override": {
setArgs: func(t *testing.T) {
t.Setenv(construct.MongodbRepoUrl, "some_other_repo.com/some_other_org")
t.Setenv(construct.MongodbImageEnv, "mongodb-community-server")
},
mdb: mdbv1.MongoDBCommunity{
Spec: mdbv1.MongoDBCommunitySpec{
StatefulSetConfiguration: mdbv1.StatefulSetConfiguration{
SpecWrapper: mdbv1.StatefulSetSpecWrapper{
Spec: appsv1.StatefulSetSpec{
Template: corev1.PodTemplateSpec{
Spec: corev1.PodSpec{
Containers: []corev1.Container{
{
Name: construct.MongodbName,
Image: "another_repo.com/another_org/mongodb-enterprise-server",
},
},
},
},
},
},
},
},
},
expectedEnterprise: true,
},
"Enterprise with StatefulSet override to Community": {
setArgs: func(t *testing.T) {
t.Setenv(construct.MongodbRepoUrl, "some_other_repo.com/some_other_org")
t.Setenv(construct.MongodbImageEnv, "mongodb-enterprise-server")
},
mdb: mdbv1.MongoDBCommunity{
Spec: mdbv1.MongoDBCommunitySpec{
StatefulSetConfiguration: mdbv1.StatefulSetConfiguration{
SpecWrapper: mdbv1.StatefulSetSpecWrapper{
Spec: appsv1.StatefulSetSpec{
Template: corev1.PodTemplateSpec{
Spec: corev1.PodSpec{
Containers: []corev1.Container{
{
Name: construct.MongodbName,
Image: "another_repo.com/another_org/mongodb-community-server",
},
},
},
},
},
},
},
},
},
expectedEnterprise: false,
},
}
for testName := range tests {
t.Run(testName, func(t *testing.T) {
testConfig := tests[testName]
testConfig.setArgs(t)
calculatedEnterprise := guessEnterprise(testConfig.mdb)
assert.Equal(t, testConfig.expectedEnterprise, calculatedEnterprise)
})
}
}
func getVolumeByName(sts appsv1.StatefulSet, volumeName string) (corev1.Volume, error) {
for _, v := range sts.Spec.Template.Spec.Volumes {
if v.Name == volumeName {
return v, nil
}
}
return corev1.Volume{}, fmt.Errorf("volume with name %s, not found", volumeName)
}
func TestChangingVersion_ResultsInRollingUpdateStrategyType(t *testing.T) {
mdb := newTestReplicaSet()
mgr := client.NewManager(&mdb)
mgrClient := mgr.GetClient()
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: mdb.NamespacedName()})
assertReconciliationSuccessful(t, res, err)
// fetch updated resource after first reconciliation
_ = mgrClient.Get(context.TODO(), mdb.NamespacedName(), &mdb)
sts := appsv1.StatefulSet{}
err = mgrClient.Get(context.TODO(), types.NamespacedName{Name: mdb.Name, Namespace: mdb.Namespace}, &sts)
assert.NoError(t, err)
assert.Equal(t, appsv1.RollingUpdateStatefulSetStrategyType, sts.Spec.UpdateStrategy.Type)
mdbRef := &mdb
mdbRef.Spec.Version = "4.2.3"
_ = mgrClient.Update(context.TODO(), &mdb)
// agents start the upgrade, they are not all ready
sts.Status.UpdatedReplicas = 1
sts.Status.ReadyReplicas = 2
err = mgrClient.Update(context.TODO(), &sts)
assert.NoError(t, err)
_ = mgrClient.Get(context.TODO(), mdb.NamespacedName(), &sts)
// reconcilliation is successful
res, err = r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
sts = appsv1.StatefulSet{}
err = mgrClient.Get(context.TODO(), types.NamespacedName{Name: mdb.Name, Namespace: mdb.Namespace}, &sts)
assert.NoError(t, err)
assert.Equal(t, appsv1.RollingUpdateStatefulSetStrategyType, sts.Spec.UpdateStrategy.Type,
"The StatefulSet should have be re-configured to use RollingUpdates after it reached the ready state")
}
func TestBuildStatefulSet_ConfiguresUpdateStrategyCorrectly(t *testing.T) {
t.Run("On No Version Change, Same Version", func(t *testing.T) {
mdb := newTestReplicaSet()
mdb.Spec.Version = "4.0.0"
mdb.Annotations[annotations.LastAppliedMongoDBVersion] = "4.0.0"
sts, err := buildStatefulSet(mdb)
assert.NoError(t, err)
assert.Equal(t, appsv1.RollingUpdateStatefulSetStrategyType, sts.Spec.UpdateStrategy.Type)
})
t.Run("On No Version Change, First Version", func(t *testing.T) {
mdb := newTestReplicaSet()
mdb.Spec.Version = "4.0.0"
delete(mdb.Annotations, annotations.LastAppliedMongoDBVersion)
sts, err := buildStatefulSet(mdb)
assert.NoError(t, err)
assert.Equal(t, appsv1.RollingUpdateStatefulSetStrategyType, sts.Spec.UpdateStrategy.Type)
})
t.Run("On Version Change", func(t *testing.T) {
mdb := newTestReplicaSet()
mdb.Spec.Version = "4.0.0"
prevSpec := mdbv1.MongoDBCommunitySpec{
Version: "4.2.0",
}
bytes, err := json.Marshal(prevSpec)
assert.NoError(t, err)
mdb.Annotations[annotations.LastAppliedMongoDBVersion] = string(bytes)
sts, err := buildStatefulSet(mdb)
assert.NoError(t, err)
assert.Equal(t, appsv1.OnDeleteStatefulSetStrategyType, sts.Spec.UpdateStrategy.Type)
})
}
func TestService_isCorrectlyCreatedAndUpdated(t *testing.T) {
mdb := newTestReplicaSet()
mgr := client.NewManager(&mdb)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
svc := corev1.Service{}
err = mgr.GetClient().Get(context.TODO(), types.NamespacedName{Name: mdb.ServiceName(), Namespace: mdb.Namespace}, &svc)
assert.NoError(t, err)
assert.Equal(t, svc.Spec.Type, corev1.ServiceTypeClusterIP)
assert.Equal(t, svc.Spec.Selector["app"], mdb.ServiceName())
assert.Len(t, svc.Spec.Ports, 1)
assert.Equal(t, svc.Spec.Ports[0], corev1.ServicePort{Port: 27017, Name: "mongodb"})
res, err = r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
}
func TestService_usesCustomMongodPortWhenSpecified(t *testing.T) {
mdb := newTestReplicaSet()
mongodConfig := objx.New(map[string]interface{}{})
mongodConfig.Set("net.port", 1000.)
mdb.Spec.AdditionalMongodConfig.Object = mongodConfig
mgr := client.NewManager(&mdb)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
svc := corev1.Service{}
err = mgr.GetClient().Get(context.TODO(), types.NamespacedName{Name: mdb.ServiceName(), Namespace: mdb.Namespace}, &svc)
assert.NoError(t, err)
assert.Equal(t, svc.Spec.Type, corev1.ServiceTypeClusterIP)
assert.Equal(t, svc.Spec.Selector["app"], mdb.ServiceName())
assert.Len(t, svc.Spec.Ports, 1)
assert.Equal(t, svc.Spec.Ports[0], corev1.ServicePort{Port: 1000, Name: "mongodb"})
res, err = r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
}
func createOrUpdatePodsWithVersions(t *testing.T, c k8sClient.Client, name types.NamespacedName, versions []string) {
for i, version := range versions {
createPodWithAgentAnnotation(t, c, types.NamespacedName{
Namespace: name.Namespace,
Name: fmt.Sprintf("%s-%d", name.Name, i),
}, version)
}
}
func createPodWithAgentAnnotation(t *testing.T, c k8sClient.Client, name types.NamespacedName, versionStr string) {
pod := corev1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: name.Name,
Namespace: name.Namespace,
Annotations: map[string]string{
"agent.mongodb.com/version": versionStr,
},
},
}
err := c.Create(context.TODO(), &pod)
if err != nil && apiErrors.IsAlreadyExists(err) {
err = c.Update(context.TODO(), &pod)
assert.NoError(t, err)
}
assert.NoError(t, err)
}
func TestService_changesMongodPortOnRunningClusterWithArbiters(t *testing.T) {
mdb := newScramReplicaSet(mdbv1.MongoDBUser{
Name: "testuser",
PasswordSecretRef: mdbv1.SecretKeyReference{
Name: "password-secret-name",
},
ScramCredentialsSecretName: "scram-credentials",
})
namespacedName := mdb.NamespacedName()
arbiterNamespacedName := mdb.ArbiterNamespacedName()
const oldPort = automationconfig.DefaultDBPort
const newPort = 8000
mgr := client.NewManager(&mdb)
r := NewReconciler(mgr)
t.Run("Prepare cluster with arbiters and change port", func(t *testing.T) {
err := createUserPasswordSecret(mgr.Client, mdb, "password-secret-name", "pass")
assert.NoError(t, err)
mdb.Spec.Arbiters = 1
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: namespacedName})
assertReconciliationSuccessful(t, res, err)
assertServicePorts(t, mgr.Client, mdb, map[int]string{
oldPort: "mongodb",
})
_ = assertAutomationConfigVersion(t, mgr.Client, mdb, 1)
setStatefulSetReadyReplicas(t, mgr.GetClient(), mdb, 3)
setArbiterStatefulSetReadyReplicas(t, mgr.GetClient(), mdb, 1)
createOrUpdatePodsWithVersions(t, mgr.GetClient(), namespacedName, []string{"1", "1", "1"})
createOrUpdatePodsWithVersions(t, mgr.GetClient(), arbiterNamespacedName, []string{"1"})
res, err = r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: namespacedName})
assertReconciliationSuccessful(t, res, err)
assertServicePorts(t, mgr.Client, mdb, map[int]string{
oldPort: "mongodb",
})
_ = assertAutomationConfigVersion(t, mgr.Client, mdb, 1)
assertStatefulsetReady(t, mgr, namespacedName, 3)
assertStatefulsetReady(t, mgr, arbiterNamespacedName, 1)
mdb.Spec.AdditionalMongodConfig = mdbv1.NewMongodConfiguration()
mdb.Spec.AdditionalMongodConfig.SetDBPort(newPort)
err = mgr.GetClient().Update(context.TODO(), &mdb)
assert.NoError(t, err)
assertConnectionStringSecretPorts(t, mgr.GetClient(), mdb, oldPort, newPort)
})
t.Run("Port should be changed only in the process #0", func(t *testing.T) {
// port changes should be performed one at a time
// should set port #0 to new one
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: namespacedName})
require.NoError(t, err)
assert.True(t, res.Requeue)
currentAc := assertAutomationConfigVersion(t, mgr.Client, mdb, 2)
require.Len(t, currentAc.Processes, 4)
assert.Equal(t, newPort, currentAc.Processes[0].GetPort())
assert.Equal(t, oldPort, currentAc.Processes[1].GetPort())
assert.Equal(t, oldPort, currentAc.Processes[2].GetPort())
assert.Equal(t, oldPort, currentAc.Processes[3].GetPort())
// not all ports are changed, so there are still two ports in the service
assertServicePorts(t, mgr.Client, mdb, map[int]string{
oldPort: "mongodb",
newPort: "mongodb-new",
})
assertConnectionStringSecretPorts(t, mgr.GetClient(), mdb, oldPort, newPort)
})
t.Run("Ports should be changed in processes #0,#1", func(t *testing.T) {
setStatefulSetReadyReplicas(t, mgr.GetClient(), mdb, 3)
setArbiterStatefulSetReadyReplicas(t, mgr.GetClient(), mdb, 1)
createOrUpdatePodsWithVersions(t, mgr.GetClient(), namespacedName, []string{"2", "2", "2"})
createOrUpdatePodsWithVersions(t, mgr.GetClient(), arbiterNamespacedName, []string{"2"})
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: namespacedName})
require.NoError(t, err)
assert.True(t, res.Requeue)
currentAc := assertAutomationConfigVersion(t, mgr.Client, mdb, 3)
require.Len(t, currentAc.Processes, 4)
assert.Equal(t, newPort, currentAc.Processes[0].GetPort())
assert.Equal(t, newPort, currentAc.Processes[1].GetPort())
assert.Equal(t, oldPort, currentAc.Processes[2].GetPort())
assert.Equal(t, oldPort, currentAc.Processes[3].GetPort())
// not all ports are changed, so there are still two ports in the service
assertServicePorts(t, mgr.Client, mdb, map[int]string{
oldPort: "mongodb",
newPort: "mongodb-new",
})
assertConnectionStringSecretPorts(t, mgr.GetClient(), mdb, oldPort, newPort)
})
t.Run("Ports should be changed in processes #0,#1,#2", func(t *testing.T) {
setStatefulSetReadyReplicas(t, mgr.GetClient(), mdb, 3)
setArbiterStatefulSetReadyReplicas(t, mgr.GetClient(), mdb, 1)
createOrUpdatePodsWithVersions(t, mgr.GetClient(), namespacedName, []string{"3", "3", "3"})
createOrUpdatePodsWithVersions(t, mgr.GetClient(), arbiterNamespacedName, []string{"3"})
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: namespacedName})
require.NoError(t, err)
assert.True(t, res.Requeue)
currentAc := assertAutomationConfigVersion(t, mgr.Client, mdb, 4)
require.Len(t, currentAc.Processes, 4)
assert.Equal(t, newPort, currentAc.Processes[0].GetPort())
assert.Equal(t, newPort, currentAc.Processes[1].GetPort())
assert.Equal(t, newPort, currentAc.Processes[2].GetPort())
assert.Equal(t, oldPort, currentAc.Processes[3].GetPort())
// not all ports are changed, so there are still two ports in the service
assertServicePorts(t, mgr.Client, mdb, map[int]string{
oldPort: "mongodb",
newPort: "mongodb-new",
})
assertConnectionStringSecretPorts(t, mgr.GetClient(), mdb, oldPort, newPort)
})
t.Run("Ports should be changed in all processes", func(t *testing.T) {
setStatefulSetReadyReplicas(t, mgr.GetClient(), mdb, 3)
setArbiterStatefulSetReadyReplicas(t, mgr.GetClient(), mdb, 1)
createOrUpdatePodsWithVersions(t, mgr.GetClient(), namespacedName, []string{"4", "4", "4"})
createOrUpdatePodsWithVersions(t, mgr.GetClient(), arbiterNamespacedName, []string{"4"})
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assert.NoError(t, err)
assert.True(t, res.Requeue)
currentAc := assertAutomationConfigVersion(t, mgr.Client, mdb, 5)
require.Len(t, currentAc.Processes, 4)
assert.Equal(t, newPort, currentAc.Processes[0].GetPort())
assert.Equal(t, newPort, currentAc.Processes[1].GetPort())
assert.Equal(t, newPort, currentAc.Processes[2].GetPort())
assert.Equal(t, newPort, currentAc.Processes[3].GetPort())
// all the ports are changed but there are still two service ports for old and new port until the next reconcile
assertServicePorts(t, mgr.Client, mdb, map[int]string{
oldPort: "mongodb",
newPort: "mongodb-new",
})
assertConnectionStringSecretPorts(t, mgr.GetClient(), mdb, oldPort, newPort)
})
t.Run("At the end there should be only new port in the service", func(t *testing.T) {
setStatefulSetReadyReplicas(t, mgr.GetClient(), mdb, 3)
setArbiterStatefulSetReadyReplicas(t, mgr.GetClient(), mdb, 1)
createOrUpdatePodsWithVersions(t, mgr.GetClient(), namespacedName, []string{"5", "5", "5"})
createOrUpdatePodsWithVersions(t, mgr.GetClient(), arbiterNamespacedName, []string{"5"})
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: namespacedName})
assert.NoError(t, err)
// no need to requeue, port change is finished
assert.False(t, res.Requeue)
// there should not be any changes in config anymore
currentAc := assertAutomationConfigVersion(t, mgr.Client, mdb, 5)
require.Len(t, currentAc.Processes, 4)
assert.Equal(t, newPort, currentAc.Processes[0].GetPort())
assert.Equal(t, newPort, currentAc.Processes[1].GetPort())
assert.Equal(t, newPort, currentAc.Processes[2].GetPort())
assert.Equal(t, newPort, currentAc.Processes[3].GetPort())
assertServicePorts(t, mgr.Client, mdb, map[int]string{
newPort: "mongodb",
})
// only at the end, when all pods are ready we have updated connection strings
assertConnectionStringSecretPorts(t, mgr.GetClient(), mdb, newPort, oldPort)
})
}
// assertConnectionStringSecretPorts checks that connection string secret has expectedPort and does not have notExpectedPort.
func assertConnectionStringSecretPorts(t *testing.T, c k8sClient.Client, mdb mdbv1.MongoDBCommunity, expectedPort int, notExpectedPort int) {
connectionStringSecret := corev1.Secret{}
scramUsers := mdb.GetAuthUsers()
require.Len(t, scramUsers, 1)
secretNamespacedName := types.NamespacedName{Name: scramUsers[0].ConnectionStringSecretName, Namespace: scramUsers[0].ConnectionStringSecretNamespace}
err := c.Get(context.TODO(), secretNamespacedName, &connectionStringSecret)
require.NoError(t, err)
require.Contains(t, connectionStringSecret.Data, "connectionString.standard")
assert.Contains(t, string(connectionStringSecret.Data["connectionString.standard"]), fmt.Sprintf("%d", expectedPort))
assert.NotContains(t, string(connectionStringSecret.Data["connectionString.standard"]), fmt.Sprintf("%d", notExpectedPort))
}
func assertServicePorts(t *testing.T, c k8sClient.Client, mdb mdbv1.MongoDBCommunity, expectedServicePorts map[int]string) {
svc := corev1.Service{}
err := c.Get(context.TODO(), types.NamespacedName{Name: mdb.ServiceName(), Namespace: mdb.Namespace}, &svc)
require.NoError(t, err)
assert.Equal(t, corev1.ServiceTypeClusterIP, svc.Spec.Type)
assert.Equal(t, mdb.ServiceName(), svc.Spec.Selector["app"])
assert.Len(t, svc.Spec.Ports, len(expectedServicePorts))
actualServicePorts := map[int]string{}
for _, servicePort := range svc.Spec.Ports {
actualServicePorts[int(servicePort.Port)] = servicePort.Name
}
assert.Equal(t, expectedServicePorts, actualServicePorts)
}
func assertAutomationConfigVersion(t *testing.T, c client.Client, mdb mdbv1.MongoDBCommunity, expectedVersion int) automationconfig.AutomationConfig {
ac, err := automationconfig.ReadFromSecret(c, types.NamespacedName{Name: mdb.AutomationConfigSecretName(), Namespace: mdb.Namespace})
require.NoError(t, err)
assert.Equal(t, expectedVersion, ac.Version)
return ac
}
func assertStatefulsetReady(t *testing.T, mgr manager.Manager, name types.NamespacedName, expectedReplicas int) {
sts := appsv1.StatefulSet{}
err := mgr.GetClient().Get(context.TODO(), name, &sts)
require.NoError(t, err)
assert.True(t, statefulset.IsReady(sts, expectedReplicas))
}
func TestService_configuresPrometheusCustomPorts(t *testing.T) {
mdb := newTestReplicaSet()
mdb.Spec.Prometheus = &mdbv1.Prometheus{
Username: "username",
PasswordSecretRef: mdbv1.SecretKeyReference{
Name: "secret",
},
Port: 4321,
}
mongodConfig := objx.New(map[string]interface{}{})
mongodConfig.Set("net.port", 1000.)
mdb.Spec.AdditionalMongodConfig.Object = mongodConfig
mgr := client.NewManager(&mdb)
err := secret.CreateOrUpdate(mgr.Client,
secret.Builder().
SetName("secret").
SetNamespace(mdb.Namespace).
SetField("password", "my-password").
Build(),
)
assert.NoError(t, err)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
svc := corev1.Service{}
err = mgr.GetClient().Get(context.TODO(), types.NamespacedName{Name: mdb.ServiceName(), Namespace: mdb.Namespace}, &svc)
assert.NoError(t, err)
assert.Equal(t, svc.Spec.Type, corev1.ServiceTypeClusterIP)
assert.Equal(t, svc.Spec.Selector["app"], mdb.ServiceName())
assert.Len(t, svc.Spec.Ports, 2)
assert.Equal(t, svc.Spec.Ports[0], corev1.ServicePort{Port: 1000, Name: "mongodb"})
assert.Equal(t, svc.Spec.Ports[1], corev1.ServicePort{Port: 4321, Name: "prometheus"})
assert.Equal(t, svc.Labels["app"], mdb.ServiceName())
res, err = r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
}
func TestService_configuresPrometheus(t *testing.T) {
mdb := newTestReplicaSet()
mdb.Spec.Prometheus = &mdbv1.Prometheus{
Username: "username",
PasswordSecretRef: mdbv1.SecretKeyReference{
Name: "secret",
},
}
mgr := client.NewManager(&mdb)
err := secret.CreateOrUpdate(mgr.Client,
secret.Builder().
SetName("secret").
SetNamespace(mdb.Namespace).
SetField("password", "my-password").
Build(),
)
assert.NoError(t, err)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
svc := corev1.Service{}
err = mgr.GetClient().Get(context.TODO(), types.NamespacedName{Name: mdb.ServiceName(), Namespace: mdb.Namespace}, &svc)
assert.NoError(t, err)
assert.Len(t, svc.Spec.Ports, 2)
assert.Equal(t, svc.Spec.Ports[0], corev1.ServicePort{Port: 27017, Name: "mongodb"})
assert.Equal(t, svc.Spec.Ports[1], corev1.ServicePort{Port: 9216, Name: "prometheus"})
}
func TestCustomNetPort_Configuration(t *testing.T) {
svc, _ := performReconciliationAndGetService(t, "specify_net_port.yaml")
assert.Equal(t, corev1.ServiceTypeClusterIP, svc.Spec.Type)
assert.Len(t, svc.Spec.Ports, 1)
assert.Equal(t, corev1.ServicePort{Port: 40333, Name: "mongodb"}, svc.Spec.Ports[0])
}
func TestAutomationConfig_versionIsBumpedOnChange(t *testing.T) {
mdb := newTestReplicaSet()
mgr := client.NewManager(&mdb)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
currentAc, err := automationconfig.ReadFromSecret(mgr.Client, types.NamespacedName{Name: mdb.AutomationConfigSecretName(), Namespace: mdb.Namespace})
assert.NoError(t, err)
assert.Equal(t, 1, currentAc.Version)
mdb.Spec.Members++
makeStatefulSetReady(t, mgr.GetClient(), mdb)
_ = mgr.GetClient().Update(context.TODO(), &mdb)
res, err = r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
currentAc, err = automationconfig.ReadFromSecret(mgr.Client, types.NamespacedName{Name: mdb.AutomationConfigSecretName(), Namespace: mdb.Namespace})
assert.NoError(t, err)
assert.Equal(t, 2, currentAc.Version)
}
func TestAutomationConfig_versionIsNotBumpedWithNoChanges(t *testing.T) {
mdb := newTestReplicaSet()
mgr := client.NewManager(&mdb)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
currentAc, err := automationconfig.ReadFromSecret(mgr.Client, types.NamespacedName{Name: mdb.AutomationConfigSecretName(), Namespace: mdb.Namespace})
assert.NoError(t, err)
assert.Equal(t, currentAc.Version, 1)
res, err = r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
currentAc, err = automationconfig.ReadFromSecret(mgr.Client, types.NamespacedName{Name: mdb.AutomationConfigSecretName(), Namespace: mdb.Namespace})
assert.NoError(t, err)
assert.Equal(t, currentAc.Version, 1)
}
func TestAutomationConfigFCVIsNotIncreasedWhenUpgradingMinorVersion(t *testing.T) {
mdb := newTestReplicaSet()
mdb.Spec.Version = "4.2.2"
mgr := client.NewManager(&mdb)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
currentAc, err := automationconfig.ReadFromSecret(mgr.Client, types.NamespacedName{Name: mdb.AutomationConfigSecretName(), Namespace: mdb.Namespace})
assert.NoError(t, err)
assert.Len(t, currentAc.Processes, 3)
assert.Equal(t, currentAc.Processes[0].FeatureCompatibilityVersion, "4.2")
// Upgrading minor version does not change the FCV on the automationConfig
mdbRef := &mdb
mdbRef.Spec.Version = "4.4.0"
_ = mgr.Client.Update(context.TODO(), mdbRef)
res, err = r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
currentAc, err = automationconfig.ReadFromSecret(mgr.Client, types.NamespacedName{Name: mdb.AutomationConfigSecretName(), Namespace: mdb.Namespace})
assert.NoError(t, err)
assert.Len(t, currentAc.Processes, 3)
assert.Equal(t, currentAc.Processes[0].FeatureCompatibilityVersion, "4.2")
}
func TestAutomationConfig_CustomMongodConfig(t *testing.T) {
mdb := newTestReplicaSet()
mongodConfig := objx.New(map[string]interface{}{})
mongodConfig.Set("net.port", float64(1000))
mongodConfig.Set("storage.other", "value")
mongodConfig.Set("arbitrary.config.path", "value")
mdb.Spec.AdditionalMongodConfig.Object = mongodConfig
mgr := client.NewManager(&mdb)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
currentAc, err := automationconfig.ReadFromSecret(mgr.Client, types.NamespacedName{Name: mdb.AutomationConfigSecretName(), Namespace: mdb.Namespace})
assert.NoError(t, err)
for _, p := range currentAc.Processes {
// Ensure port was overridden
assert.Equal(t, float64(1000), p.Args26.Get("net.port").Data())
// Ensure custom values were added
assert.Equal(t, "value", p.Args26.Get("arbitrary.config.path").Data())
assert.Equal(t, "value", p.Args26.Get("storage.other").Data())
// Ensure default settings went unchanged
assert.Equal(t, automationconfig.DefaultMongoDBDataDir, p.Args26.Get("storage.dbPath").Data())
assert.Equal(t, mdb.Name, p.Args26.Get("replication.replSetName").Data())
}
}
func TestExistingPasswordAndKeyfile_AreUsedWhenTheSecretExists(t *testing.T) {
mdb := newScramReplicaSet()
mgr := client.NewManager(&mdb)
c := mgr.Client
keyFileNsName := mdb.GetAgentKeyfileSecretNamespacedName()
err := secret.CreateOrUpdate(c,
secret.Builder().
SetName(keyFileNsName.Name).
SetNamespace(keyFileNsName.Namespace).
SetField(constants.AgentKeyfileKey, "my-keyfile").
Build(),
)
assert.NoError(t, err)
passwordNsName := mdb.GetAgentPasswordSecretNamespacedName()
err = secret.CreateOrUpdate(c,
secret.Builder().
SetName(passwordNsName.Name).
SetNamespace(passwordNsName.Namespace).
SetField(constants.AgentPasswordKey, "my-pass").
Build(),
)
assert.NoError(t, err)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
currentAc, err := automationconfig.ReadFromSecret(mgr.Client, types.NamespacedName{Name: mdb.AutomationConfigSecretName(), Namespace: mdb.Namespace})
assert.NoError(t, err)
assert.NotEmpty(t, currentAc.Auth.KeyFileWindows)
assert.False(t, currentAc.Auth.Disabled)
assert.Equal(t, "my-keyfile", currentAc.Auth.Key)
assert.NotEmpty(t, currentAc.Auth.KeyFileWindows)
assert.Equal(t, "my-pass", currentAc.Auth.AutoPwd)
}
func TestScramIsConfigured(t *testing.T) {
assertReplicaSetIsConfiguredWithScram(t, newScramReplicaSet())
}
func TestScramIsConfiguredWhenNotSpecified(t *testing.T) {
assertReplicaSetIsConfiguredWithScram(t, newTestReplicaSet())
}
func TestReplicaSet_IsScaledDown_OneMember_AtATime_WhenItAlreadyExists(t *testing.T) {
mdb := newTestReplicaSet()
mdb.Spec.Members = 5
mgr := client.NewManager(&mdb)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)
err = mgr.GetClient().Get(context.TODO(), mdb.NamespacedName(), &mdb)
assert.NoError(t, err)
assert.Equal(t, 5, mdb.Status.CurrentMongoDBMembers)
// scale members from five to three
mdb.Spec.Members = 3
err = mgr.GetClient().Update(context.TODO(), &mdb)
assert.NoError(t, err)
makeStatefulSetReady(t, mgr.GetClient(), mdb)
res, err = r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: mdb.NamespacedName()})
makeStatefulSetReady(t, mgr.GetClient(), mdb)
assert.NoError(t, err)
err = mgr.GetClient().Get(context.TODO(), mdb.NamespacedName(), &mdb)
assert.NoError(t, err)
assert.Equal(t, true, res.Requeue)
assert.Equal(t, 4, mdb.Status.CurrentMongoDBMembers)
makeStatefulSetReady(t, mgr.GetClient(), mdb)
res, err = r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: mdb.NamespacedName()})
assert.NoError(t, err)
err = mgr.GetClient().Get(context.TODO(), mdb.NamespacedName(), &mdb)
assert.NoError(t, err)
assert.Equal(t, false, res.Requeue)
assert.Equal(t, 3, mdb.Status.CurrentMongoDBMembers)
}
func TestReplicaSet_IsScaledUp_OneMember_AtATime_WhenItAlreadyExists(t *testing.T) {
mdb := newTestReplicaSet()
mgr := client.NewManager(&mdb)
r := NewReconciler(mgr)
res, err := r.Reconcile(context.TODO(), reconcile.Request{NamespacedName: types.NamespacedName{Namespace: mdb.Namespace, Name: mdb.Name}})
assertReconciliationSuccessful(t, res, err)