/
user_reconciler.go
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/
user_reconciler.go
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package elasticsearchapi
import (
"context"
"time"
"emperror.dev/errors"
eshandler "github.com/disaster37/es-handler/v8"
"github.com/disaster37/generic-objectmatcher/patch"
"github.com/disaster37/operator-sdk-extra/pkg/controller"
"github.com/disaster37/operator-sdk-extra/pkg/object"
olivere "github.com/olivere/elastic/v7"
"github.com/sethvargo/go-password/password"
"github.com/sirupsen/logrus"
elasticsearchapicrd "github.com/webcenter-fr/elasticsearch-operator/apis/elasticsearchapi/v1"
localhelper "github.com/webcenter-fr/elasticsearch-operator/pkg/helper"
core "k8s.io/api/core/v1"
corev1 "k8s.io/api/core/v1"
k8serrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/client-go/tools/record"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
)
type userReconciler struct {
controller.RemoteReconcilerAction[*elasticsearchapicrd.User, *olivere.XPackSecurityPutUserRequest, eshandler.ElasticsearchHandler]
controller.BaseReconciler
}
func newUserReconciler(client client.Client, logger *logrus.Entry, recorder record.EventRecorder) controller.RemoteReconcilerAction[*elasticsearchapicrd.User, *olivere.XPackSecurityPutUserRequest, eshandler.ElasticsearchHandler] {
return &userReconciler{
RemoteReconcilerAction: controller.NewRemoteReconcilerAction[*elasticsearchapicrd.User, *olivere.XPackSecurityPutUserRequest, eshandler.ElasticsearchHandler](
client,
logger,
recorder,
),
BaseReconciler: controller.BaseReconciler{
Client: client,
Log: logger,
Recorder: recorder,
},
}
}
func (h *userReconciler) GetRemoteHandler(ctx context.Context, req ctrl.Request, o object.RemoteObject) (handler controller.RemoteExternalReconciler[*elasticsearchapicrd.User, *olivere.XPackSecurityPutUserRequest, eshandler.ElasticsearchHandler], res ctrl.Result, err error) {
user := o.(*elasticsearchapicrd.User)
esClient, err := GetElasticsearchHandler(ctx, user, user.Spec.ElasticsearchRef, h.BaseReconciler.Client, h.BaseReconciler.Log)
if err != nil && user.DeletionTimestamp.IsZero() {
return nil, res, err
}
// Elastic not ready
if esClient == nil {
if user.DeletionTimestamp.IsZero() {
return nil, ctrl.Result{RequeueAfter: 60 * time.Second}, nil
}
return nil, res, nil
}
handler = newUserApiClient(esClient)
return handler, res, nil
}
func (h *userReconciler) Read(ctx context.Context, o object.RemoteObject, data map[string]any, handler controller.RemoteExternalReconciler[*elasticsearchapicrd.User, *olivere.XPackSecurityPutUserRequest, eshandler.ElasticsearchHandler]) (read controller.RemoteRead[*olivere.XPackSecurityPutUserRequest], res ctrl.Result, err error) {
read, res, err = h.RemoteReconcilerAction.Read(ctx, o, data, handler)
if err != nil {
return nil, res, err
}
user := o.(*elasticsearchapicrd.User)
// Read password from secret if needed and inject it on expected user
if !user.IsAutoGeneratePassword() && user.Spec.SecretRef != nil {
secret := &core.Secret{}
secretNS := types.NamespacedName{
Namespace: user.Namespace,
Name: user.Spec.SecretRef.Name,
}
if err = h.Get(ctx, secretNS, secret); err != nil {
if k8serrors.IsNotFound(err) {
h.Log.Warnf("Secret %s not yet exist, try later", user.Spec.SecretRef.Name)
h.Recorder.Eventf(o, core.EventTypeWarning, "Failed", "Secret %s not yet exist", user.Spec.SecretRef.Name)
return nil, ctrl.Result{RequeueAfter: 30 * time.Second}, nil
}
return nil, res, errors.Wrapf(err, "Error when get secret %s", user.Spec.SecretRef.Name)
}
passwordB, ok := secret.Data[user.Spec.SecretRef.Key]
if !ok {
return nil, res, errors.Wrapf(err, "Secret %s must have a %s key", user.Spec.SecretRef.Name, user.Spec.SecretRef.Key)
}
read.GetExpectedObject().Password = string(passwordB)
read.GetExpectedObject().PasswordHash = ""
} else if user.IsAutoGeneratePassword() {
secret := &corev1.Secret{}
var expectedPassword string
if err = h.Get(ctx, types.NamespacedName{Namespace: user.Namespace, Name: GetUserSecretWhenAutoGeneratePassword(user)}, secret); err != nil {
if k8serrors.IsNotFound(err) {
// Create secret and generate password
expectedPassword, err = password.Generate(64, 10, 0, false, true)
if err != nil {
return nil, res, errors.Wrap(err, "Error when generate password")
}
secret = &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: GetUserSecretWhenAutoGeneratePassword(user),
Namespace: user.Namespace,
},
Data: map[string][]byte{
"password": []byte(expectedPassword),
"username": []byte(user.GetExternalName()),
},
}
// Set owner
err = ctrl.SetControllerReference(o, secret, h.Client.Scheme())
if err != nil {
return nil, res, errors.Wrapf(err, "Error when set owner reference on object '%s'", secret.GetName())
}
if err = h.Client.Create(ctx, secret); err != nil {
return nil, res, errors.Wrap(err, "Error when create secret that store auto generated password")
}
}
}
if len(secret.Data["password"]) == 0 || len(secret.Data["username"]) == 0 {
// The password entry not exist, create it
expectedPassword, err = password.Generate(64, 10, 0, false, true)
if err != nil {
return nil, res, errors.Wrap(err, "Error when generate password")
}
secret.Data["password"] = []byte(expectedPassword)
secret.Data["username"] = []byte(user.GetExternalName())
if err = h.Client.Update(ctx, secret); err != nil {
return nil, res, errors.Wrap(err, "Error when update secret that store auto generated password")
}
} else {
expectedPassword = string(secret.Data["password"])
}
read.GetExpectedObject().Password = expectedPassword
read.GetExpectedObject().PasswordHash = ""
}
return read, res, nil
}
func (h *userReconciler) Delete(ctx context.Context, o object.RemoteObject, data map[string]any, handler controller.RemoteExternalReconciler[*elasticsearchapicrd.User, *olivere.XPackSecurityPutUserRequest, eshandler.ElasticsearchHandler]) (err error) {
user := o.(*elasticsearchapicrd.User)
if user.IsProtected() {
return nil
}
return h.RemoteReconcilerAction.Delete(ctx, o, data, handler)
}
func (h *userReconciler) OnSuccess(ctx context.Context, o object.RemoteObject, data map[string]any, handler controller.RemoteExternalReconciler[*elasticsearchapicrd.User, *olivere.XPackSecurityPutUserRequest, eshandler.ElasticsearchHandler], diff controller.RemoteDiff[*olivere.XPackSecurityPutUserRequest]) (res ctrl.Result, err error) {
// Update passwordHash if needed on status
if diff.NeedCreate() || diff.NeedUpdate() {
user := o.(*elasticsearchapicrd.User)
var passwordHash string
if user.IsAutoGeneratePassword() || user.Spec.SecretRef != nil {
if diff.NeedCreate() && diff.GetObjectToCreate().Password != "" {
passwordHash, err = localhelper.HashPassword(diff.GetObjectToCreate().Password)
if err != nil {
return res, errors.Wrap(err, "Error when hash password")
}
}
if diff.NeedUpdate() && diff.GetObjectToUpdate().Password != "" {
passwordHash, err = localhelper.HashPassword(diff.GetObjectToUpdate().Password)
if err != nil {
return res, errors.Wrap(err, "Error when hash password")
}
}
} else if user.Spec.PasswordHash != user.Status.PasswordHash {
passwordHash = user.Spec.PasswordHash
}
if passwordHash != "" {
user.Status.PasswordHash = passwordHash
}
}
return h.RemoteReconcilerAction.OnSuccess(ctx, o, data, handler, diff)
}
func (h *userReconciler) Diff(ctx context.Context, o object.RemoteObject, read controller.RemoteRead[*olivere.XPackSecurityPutUserRequest], data map[string]any, handler controller.RemoteExternalReconciler[*elasticsearchapicrd.User, *olivere.XPackSecurityPutUserRequest, eshandler.ElasticsearchHandler], ignoreDiff ...patch.CalculateOption) (diff controller.RemoteDiff[*olivere.XPackSecurityPutUserRequest], res ctrl.Result, err error) {
user := o.(*elasticsearchapicrd.User)
var currentUser *olivere.XPackSecurityPutUserRequest
// If it is protected user, only manage the password
if user.IsProtected() {
currentUser = &olivere.XPackSecurityPutUserRequest{
Enabled: read.GetCurrentObject().Enabled,
Password: read.GetCurrentObject().Password,
PasswordHash: read.GetCurrentObject().PasswordHash,
}
read.SetCurrentObject(currentUser)
}
if read.GetExpectedObject().Password != "" {
// Password is provided by secret
if localhelper.CheckPasswordHash(read.GetExpectedObject().Password, user.Status.PasswordHash) {
read.GetExpectedObject().Password = ""
read.GetExpectedObject().PasswordHash = ""
}
} else if user.Spec.PasswordHash == user.Status.PasswordHash {
// Password hash is provided
read.GetExpectedObject().Password = ""
read.GetExpectedObject().PasswordHash = ""
}
return h.RemoteReconcilerAction.Diff(ctx, o, read, data, handler, ignoreDiff...)
}