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servicebinding_controller.go
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servicebinding_controller.go
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/*
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"
"encoding/json"
"strings"
"time"
commonutils "github.com/SAP/sap-btp-service-operator/api/common/utils"
"github.com/pkg/errors"
"github.com/SAP/sap-btp-service-operator/api/common"
"github.com/SAP/sap-btp-service-operator/internal/config"
"github.com/SAP/sap-btp-service-operator/internal/utils"
"github.com/go-logr/logr"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/tools/record"
"fmt"
"k8s.io/client-go/util/workqueue"
"sigs.k8s.io/controller-runtime/pkg/controller"
servicesv1 "github.com/SAP/sap-btp-service-operator/api/v1"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/apimachinery/pkg/runtime/schema"
"github.com/google/uuid"
"github.com/SAP/sap-btp-service-operator/client/sm"
smClientTypes "github.com/SAP/sap-btp-service-operator/client/sm/types"
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/types"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
)
const (
secretNameTakenErrorFormat = "the specified secret name '%s' is already taken. Choose another name and try again"
secretAlreadyOwnedErrorFormat = "secret %s belongs to another binding %s, choose a different name"
)
// ServiceBindingReconciler reconciles a ServiceBinding object
type ServiceBindingReconciler struct {
client.Client
Log logr.Logger
Scheme *runtime.Scheme
GetSMClient func(ctx context.Context, secretResolver *utils.SecretResolver, resourceNamespace, btpAccessSecretName string) (sm.Client, error)
Config config.Config
SecretResolver *utils.SecretResolver
Recorder record.EventRecorder
}
// +kubebuilder:rbac:groups=services.cloud.sap.com,resources=servicebindings,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=services.cloud.sap.com,resources=servicebindings/status,verbs=get;update;patch
// +kubebuilder:rbac:groups=core,resources=secrets,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=core,resources=events,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=coordination.k8s.io,resources=leases,verbs=get;list;create;update
func (r *ServiceBindingReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
log := r.Log.WithValues("servicebinding", req.NamespacedName).WithValues("correlation_id", uuid.New().String(), req.Name, req.Namespace)
ctx = context.WithValue(ctx, utils.LogKey{}, log)
serviceBinding := &servicesv1.ServiceBinding{}
if err := r.Client.Get(ctx, req.NamespacedName, serviceBinding); err != nil {
if !apierrors.IsNotFound(err) {
log.Error(err, "unable to fetch ServiceBinding")
}
return ctrl.Result{}, client.IgnoreNotFound(err)
}
serviceBinding = serviceBinding.DeepCopy()
log.Info(fmt.Sprintf("Current generation is %v and observed is %v", serviceBinding.Generation, serviceBinding.GetObservedGeneration()))
serviceBinding.SetObservedGeneration(serviceBinding.Generation)
if len(serviceBinding.GetConditions()) == 0 {
if err := utils.InitConditions(ctx, r.Client, serviceBinding); err != nil {
return ctrl.Result{}, err
}
}
serviceInstance, instanceErr := r.getServiceInstanceForBinding(ctx, serviceBinding)
if instanceErr != nil {
if !apierrors.IsNotFound(instanceErr) {
log.Error(instanceErr, "failed to get service instance for binding")
return ctrl.Result{}, instanceErr
} else if !utils.IsMarkedForDeletion(serviceBinding.ObjectMeta) {
//instance is not found and binding is not marked for deletion
instanceNamespace := serviceBinding.Namespace
if len(serviceBinding.Spec.ServiceInstanceNamespace) > 0 {
instanceNamespace = serviceBinding.Spec.ServiceInstanceNamespace
}
errMsg := fmt.Sprintf("couldn't find the service instance '%s' in namespace '%s'", serviceBinding.Spec.ServiceInstanceName, instanceNamespace)
utils.SetBlockedCondition(ctx, errMsg, serviceBinding)
if updateErr := utils.UpdateStatus(ctx, r.Client, serviceBinding); updateErr != nil {
return ctrl.Result{}, updateErr
}
return ctrl.Result{}, instanceErr
}
}
if utils.IsMarkedForDeletion(serviceBinding.ObjectMeta) {
return r.delete(ctx, serviceBinding, serviceInstance.Spec.BTPAccessCredentialsSecret)
}
if len(serviceBinding.Status.OperationURL) > 0 {
// ongoing operation - poll status from SM
return r.poll(ctx, serviceBinding, serviceInstance.Spec.BTPAccessCredentialsSecret)
}
if !controllerutil.ContainsFinalizer(serviceBinding, common.FinalizerName) {
controllerutil.AddFinalizer(serviceBinding, common.FinalizerName)
log.Info(fmt.Sprintf("added finalizer '%s' to service binding", common.FinalizerName))
if err := r.Client.Update(ctx, serviceBinding); err != nil {
return ctrl.Result{}, err
}
}
condition := meta.FindStatusCondition(serviceBinding.Status.Conditions, common.ConditionReady)
if serviceBinding.Status.BindingID != "" && condition != nil && condition.ObservedGeneration != serviceBinding.Generation {
err := r.updateSecret(ctx, serviceBinding, serviceInstance, log)
if err != nil {
return r.handleSecretError(ctx, smClientTypes.UPDATE, err, serviceBinding)
}
err = utils.UpdateStatus(ctx, r.Client, serviceBinding)
if err != nil {
return r.handleSecretError(ctx, smClientTypes.UPDATE, err, serviceBinding)
}
}
isBindingReady := condition != nil && condition.Status == metav1.ConditionTrue
if isBindingReady {
if isStaleServiceBinding(serviceBinding) {
return r.handleStaleServiceBinding(ctx, serviceBinding)
}
if initCredRotationIfRequired(serviceBinding) {
return ctrl.Result{}, utils.UpdateStatus(ctx, r.Client, serviceBinding)
}
}
if meta.IsStatusConditionTrue(serviceBinding.Status.Conditions, common.ConditionCredRotationInProgress) {
if err := r.rotateCredentials(ctx, serviceBinding, serviceInstance.Spec.BTPAccessCredentialsSecret); err != nil {
return ctrl.Result{}, err
}
}
if isBindingReady {
log.Info("Binding in final state")
return r.maintain(ctx, serviceBinding)
}
if serviceNotUsable(serviceInstance) {
instanceErr := fmt.Errorf("service instance '%s' is not usable", serviceBinding.Spec.ServiceInstanceName)
utils.SetBlockedCondition(ctx, instanceErr.Error(), serviceBinding)
if err := utils.UpdateStatus(ctx, r.Client, serviceBinding); err != nil {
return ctrl.Result{}, err
}
return ctrl.Result{}, instanceErr
}
if utils.IsInProgress(serviceInstance) {
log.Info(fmt.Sprintf("Service instance with k8s name %s is not ready for binding yet", serviceInstance.Name))
utils.SetInProgressConditions(ctx, smClientTypes.CREATE, fmt.Sprintf("creation in progress, waiting for service instance '%s' to be ready", serviceBinding.Spec.ServiceInstanceName), serviceBinding)
return ctrl.Result{Requeue: true, RequeueAfter: r.Config.PollInterval}, utils.UpdateStatus(ctx, r.Client, serviceBinding)
}
//set owner instance only for original bindings (not rotated)
if serviceBinding.Labels == nil || len(serviceBinding.Labels[common.StaleBindingIDLabel]) == 0 {
if !bindingAlreadyOwnedByInstance(serviceInstance, serviceBinding) &&
serviceInstance.Namespace == serviceBinding.Namespace { //cross namespace reference not allowed
if err := r.setOwner(ctx, serviceInstance, serviceBinding); err != nil {
log.Error(err, "failed to set owner reference for binding")
return ctrl.Result{}, err
}
}
}
if serviceBinding.Status.BindingID == "" {
if err := r.validateSecretNameIsAvailable(ctx, serviceBinding); err != nil {
utils.SetBlockedCondition(ctx, err.Error(), serviceBinding)
return ctrl.Result{}, utils.UpdateStatus(ctx, r.Client, serviceBinding)
}
smClient, err := r.GetSMClient(ctx, r.SecretResolver, serviceBinding.Namespace, serviceInstance.Spec.BTPAccessCredentialsSecret)
if err != nil {
return utils.MarkAsTransientError(ctx, r.Client, common.Unknown, err, serviceBinding)
}
smBinding, err := r.getBindingForRecovery(ctx, smClient, serviceBinding)
if err != nil {
log.Error(err, "failed to check binding recovery")
return utils.MarkAsTransientError(ctx, r.Client, smClientTypes.CREATE, err, serviceBinding)
}
if smBinding != nil {
return r.recover(ctx, serviceBinding, smBinding)
}
return r.createBinding(ctx, smClient, serviceInstance, serviceBinding)
}
log.Error(fmt.Errorf("update binding is not allowed, this line should not be reached"), "")
return ctrl.Result{}, nil
}
func (r *ServiceBindingReconciler) updateSecret(ctx context.Context, serviceBinding *servicesv1.ServiceBinding, serviceInstance *servicesv1.ServiceInstance, log logr.Logger) error {
log.Info("Updating secret according to the new template")
smClient, err := r.GetSMClient(ctx, r.SecretResolver, serviceBinding.Namespace, serviceInstance.Spec.BTPAccessCredentialsSecret)
if err != nil {
return err
}
smBinding, err := smClient.GetBindingByID(serviceBinding.Status.BindingID, nil)
if err != nil {
log.Error(err, "failed to get binding for update secret")
return err
}
if smBinding != nil {
if smBinding.Credentials != nil {
if err = r.storeBindingSecret(ctx, serviceBinding, smBinding); err != nil {
return err
}
log.Info("Updating binding", "bindingID", smBinding.ID)
utils.SetSuccessConditions(smClientTypes.UPDATE, serviceBinding)
}
}
return nil
}
func (r *ServiceBindingReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
For(&servicesv1.ServiceBinding{}).
WithOptions(controller.Options{RateLimiter: workqueue.NewItemExponentialFailureRateLimiter(r.Config.RetryBaseDelay, r.Config.RetryMaxDelay)}).
Complete(r)
}
func (r *ServiceBindingReconciler) createBinding(ctx context.Context, smClient sm.Client, serviceInstance *servicesv1.ServiceInstance, serviceBinding *servicesv1.ServiceBinding) (ctrl.Result, error) {
log := utils.GetLogger(ctx)
log.Info("Creating smBinding in SM")
serviceBinding.Status.InstanceID = serviceInstance.Status.InstanceID
_, bindingParameters, err := utils.BuildSMRequestParameters(r.Client, serviceBinding.Namespace, serviceBinding.Spec.ParametersFrom, serviceBinding.Spec.Parameters)
if err != nil {
log.Error(err, "failed to parse smBinding parameters")
return utils.MarkAsNonTransientError(ctx, r.Client, smClientTypes.CREATE, err.Error(), serviceBinding)
}
smBinding, operationURL, bindErr := smClient.Bind(&smClientTypes.ServiceBinding{
Name: serviceBinding.Spec.ExternalName,
Labels: smClientTypes.Labels{
common.NamespaceLabel: []string{serviceBinding.Namespace},
common.K8sNameLabel: []string{serviceBinding.Name},
common.ClusterIDLabel: []string{r.Config.ClusterID},
},
ServiceInstanceID: serviceInstance.Status.InstanceID,
Parameters: bindingParameters,
}, nil, utils.BuildUserInfo(ctx, serviceBinding.Spec.UserInfo))
if bindErr != nil {
log.Error(err, "failed to create service binding", "serviceInstanceID", serviceInstance.Status.InstanceID)
return utils.HandleError(ctx, r.Client, smClientTypes.CREATE, bindErr, serviceBinding, true)
}
if operationURL != "" {
var bindingID string
if bindingID = sm.ExtractBindingID(operationURL); len(bindingID) == 0 {
return utils.MarkAsNonTransientError(ctx, r.Client, smClientTypes.CREATE, fmt.Sprintf("failed to extract smBinding ID from operation URL %s", operationURL), serviceBinding)
}
serviceBinding.Status.BindingID = bindingID
log.Info("Create smBinding request is async")
serviceBinding.Status.OperationURL = operationURL
serviceBinding.Status.OperationType = smClientTypes.CREATE
utils.SetInProgressConditions(ctx, smClientTypes.CREATE, "", serviceBinding)
if err := utils.UpdateStatus(ctx, r.Client, serviceBinding); err != nil {
log.Error(err, "unable to update ServiceBinding status")
return ctrl.Result{}, err
}
return ctrl.Result{Requeue: true, RequeueAfter: r.Config.PollInterval}, nil
}
log.Info("Binding created successfully")
if err := r.storeBindingSecret(ctx, serviceBinding, smBinding); err != nil {
return r.handleSecretError(ctx, smClientTypes.CREATE, err, serviceBinding)
}
subaccountID := ""
if len(smBinding.Labels["subaccount_id"]) > 0 {
subaccountID = smBinding.Labels["subaccount_id"][0]
}
serviceBinding.Status.BindingID = smBinding.ID
serviceBinding.Status.SubaccountID = subaccountID
serviceBinding.Status.Ready = metav1.ConditionTrue
utils.SetSuccessConditions(smClientTypes.CREATE, serviceBinding)
log.Info("Updating binding", "bindingID", smBinding.ID)
return ctrl.Result{}, utils.UpdateStatus(ctx, r.Client, serviceBinding)
}
func (r *ServiceBindingReconciler) delete(ctx context.Context, serviceBinding *servicesv1.ServiceBinding, btpAccessCredentialsSecret string) (ctrl.Result, error) {
log := utils.GetLogger(ctx)
if controllerutil.ContainsFinalizer(serviceBinding, common.FinalizerName) {
smClient, err := r.GetSMClient(ctx, r.SecretResolver, serviceBinding.Namespace, btpAccessCredentialsSecret)
if err != nil {
return utils.MarkAsTransientError(ctx, r.Client, common.Unknown, err, serviceBinding)
}
if len(serviceBinding.Status.BindingID) == 0 {
log.Info("No binding id found validating binding does not exists in SM before removing finalizer")
smBinding, err := r.getBindingForRecovery(ctx, smClient, serviceBinding)
if err != nil {
return ctrl.Result{}, err
}
if smBinding != nil {
log.Info("binding exists in SM continue with deletion")
serviceBinding.Status.BindingID = smBinding.ID
utils.SetInProgressConditions(ctx, smClientTypes.DELETE, "delete after recovery", serviceBinding)
return ctrl.Result{}, utils.UpdateStatus(ctx, r.Client, serviceBinding)
}
// make sure there's no secret stored for the binding
if err := r.deleteBindingSecret(ctx, serviceBinding); err != nil {
return ctrl.Result{}, err
}
log.Info("Binding does not exists in SM, removing finalizer")
if err := utils.RemoveFinalizer(ctx, r.Client, serviceBinding, common.FinalizerName); err != nil {
return ctrl.Result{}, err
}
return ctrl.Result{}, nil
}
if len(serviceBinding.Status.OperationURL) > 0 && serviceBinding.Status.OperationType == smClientTypes.DELETE {
// ongoing delete operation - poll status from SM
return r.poll(ctx, serviceBinding, btpAccessCredentialsSecret)
}
log.Info(fmt.Sprintf("Deleting binding with id %v from SM", serviceBinding.Status.BindingID))
operationURL, unbindErr := smClient.Unbind(serviceBinding.Status.BindingID, nil, utils.BuildUserInfo(ctx, serviceBinding.Spec.UserInfo))
if unbindErr != nil {
// delete will proceed anyway
return utils.MarkAsNonTransientError(ctx, r.Client, smClientTypes.DELETE, unbindErr.Error(), serviceBinding)
}
if operationURL != "" {
log.Info("Deleting binding async")
serviceBinding.Status.OperationURL = operationURL
serviceBinding.Status.OperationType = smClientTypes.DELETE
utils.SetInProgressConditions(ctx, smClientTypes.DELETE, "", serviceBinding)
if err := utils.UpdateStatus(ctx, r.Client, serviceBinding); err != nil {
return ctrl.Result{}, err
}
return ctrl.Result{Requeue: true, RequeueAfter: r.Config.PollInterval}, nil
}
log.Info("Binding was deleted successfully")
return r.deleteSecretAndRemoveFinalizer(ctx, serviceBinding)
}
return ctrl.Result{}, nil
}
func (r *ServiceBindingReconciler) poll(ctx context.Context, serviceBinding *servicesv1.ServiceBinding, btpAccessCredentialsSecret string) (ctrl.Result, error) {
log := utils.GetLogger(ctx)
log.Info(fmt.Sprintf("resource is in progress, found operation url %s", serviceBinding.Status.OperationURL))
smClient, err := r.GetSMClient(ctx, r.SecretResolver, serviceBinding.Namespace, btpAccessCredentialsSecret)
if err != nil {
return utils.MarkAsTransientError(ctx, r.Client, common.Unknown, err, serviceBinding)
}
status, statusErr := smClient.Status(serviceBinding.Status.OperationURL, nil)
if statusErr != nil {
log.Info(fmt.Sprintf("failed to fetch operation, got error from SM: %s", statusErr.Error()), "operationURL", serviceBinding.Status.OperationURL)
utils.SetInProgressConditions(ctx, serviceBinding.Status.OperationType, string(smClientTypes.INPROGRESS), serviceBinding)
freshStatus := servicesv1.ServiceBindingStatus{
Conditions: serviceBinding.GetConditions(),
}
if utils.IsMarkedForDeletion(serviceBinding.ObjectMeta) {
freshStatus.BindingID = serviceBinding.Status.BindingID
}
serviceBinding.Status = freshStatus
if err := utils.UpdateStatus(ctx, r.Client, serviceBinding); err != nil {
log.Error(err, "failed to update status during polling")
}
return ctrl.Result{}, statusErr
}
if status == nil {
return utils.MarkAsTransientError(ctx, r.Client, serviceBinding.Status.OperationType, fmt.Errorf("failed to get last operation status of %s", serviceBinding.Name), serviceBinding)
}
switch status.State {
case smClientTypes.INPROGRESS:
fallthrough
case smClientTypes.PENDING:
if len(status.Description) != 0 {
utils.SetInProgressConditions(ctx, status.Type, status.Description, serviceBinding)
if err := utils.UpdateStatus(ctx, r.Client, serviceBinding); err != nil {
log.Error(err, "unable to update ServiceBinding polling description")
return ctrl.Result{}, err
}
}
return ctrl.Result{Requeue: true, RequeueAfter: r.Config.PollInterval}, nil
case smClientTypes.FAILED:
// non transient error - should not retry
utils.SetFailureConditions(status.Type, status.Description, serviceBinding)
if serviceBinding.Status.OperationType == smClientTypes.DELETE {
serviceBinding.Status.OperationURL = ""
serviceBinding.Status.OperationType = ""
if err := utils.UpdateStatus(ctx, r.Client, serviceBinding); err != nil {
log.Error(err, "unable to update ServiceBinding status")
return ctrl.Result{}, err
}
errMsg := "Async unbind operation failed"
if status.Errors != nil {
errMsg = fmt.Sprintf("Async unbind operation failed, errors: %s", string(status.Errors))
}
return ctrl.Result{}, fmt.Errorf(errMsg)
}
case smClientTypes.SUCCEEDED:
utils.SetSuccessConditions(status.Type, serviceBinding)
switch serviceBinding.Status.OperationType {
case smClientTypes.CREATE:
smBinding, err := smClient.GetBindingByID(serviceBinding.Status.BindingID, nil)
if err != nil || smBinding == nil {
log.Error(err, fmt.Sprintf("binding %s succeeded but could not fetch it from SM", serviceBinding.Status.BindingID))
return ctrl.Result{}, err
}
if len(smBinding.Labels["subaccount_id"]) > 0 {
serviceBinding.Status.SubaccountID = smBinding.Labels["subaccount_id"][0]
}
if err := r.storeBindingSecret(ctx, serviceBinding, smBinding); err != nil {
return r.handleSecretError(ctx, smClientTypes.CREATE, err, serviceBinding)
}
utils.SetSuccessConditions(status.Type, serviceBinding)
case smClientTypes.DELETE:
return r.deleteSecretAndRemoveFinalizer(ctx, serviceBinding)
}
}
serviceBinding.Status.OperationURL = ""
serviceBinding.Status.OperationType = ""
return ctrl.Result{}, utils.UpdateStatus(ctx, r.Client, serviceBinding)
}
func (r *ServiceBindingReconciler) getBindingForRecovery(ctx context.Context, smClient sm.Client, serviceBinding *servicesv1.ServiceBinding) (*smClientTypes.ServiceBinding, error) {
log := utils.GetLogger(ctx)
nameQuery := fmt.Sprintf("name eq '%s'", serviceBinding.Spec.ExternalName)
clusterIDQuery := fmt.Sprintf("context/clusterid eq '%s'", r.Config.ClusterID)
namespaceQuery := fmt.Sprintf("context/namespace eq '%s'", serviceBinding.Namespace)
k8sNameQuery := fmt.Sprintf("%s eq '%s'", common.K8sNameLabel, serviceBinding.Name)
parameters := sm.Parameters{
FieldQuery: []string{nameQuery, clusterIDQuery, namespaceQuery},
LabelQuery: []string{k8sNameQuery},
GeneralParams: []string{"attach_last_operations=true"},
}
log.Info(fmt.Sprintf("binding recovery query params: %s, %s, %s, %s", nameQuery, clusterIDQuery, namespaceQuery, k8sNameQuery))
bindings, err := smClient.ListBindings(¶meters)
if err != nil {
log.Error(err, "failed to list bindings in SM")
return nil, err
}
if bindings != nil {
log.Info(fmt.Sprintf("found %d bindings", len(bindings.ServiceBindings)))
if len(bindings.ServiceBindings) == 1 {
return &bindings.ServiceBindings[0], nil
}
}
return nil, nil
}
func (r *ServiceBindingReconciler) maintain(ctx context.Context, binding *servicesv1.ServiceBinding) (ctrl.Result, error) {
log := utils.GetLogger(ctx)
shouldUpdateStatus := false
if binding.Generation != binding.Status.ObservedGeneration {
binding.SetObservedGeneration(binding.Generation)
shouldUpdateStatus = true
}
if !utils.IsFailed(binding) {
if _, err := r.getSecret(ctx, binding.Namespace, binding.Spec.SecretName); err != nil {
if apierrors.IsNotFound(err) && !utils.IsMarkedForDeletion(binding.ObjectMeta) {
log.Info(fmt.Sprintf("secret not found recovering binding %s", binding.Name))
binding.Status.BindingID = ""
binding.Status.Ready = metav1.ConditionFalse
utils.SetInProgressConditions(ctx, smClientTypes.CREATE, "recreating deleted secret", binding)
shouldUpdateStatus = true
r.Recorder.Event(binding, corev1.EventTypeWarning, "SecretDeleted", "SecretDeleted")
} else {
return ctrl.Result{}, err
}
}
}
if shouldUpdateStatus {
log.Info(fmt.Sprintf("maintanance required for binding %s", binding.Name))
return ctrl.Result{}, utils.UpdateStatus(ctx, r.Client, binding)
}
return ctrl.Result{}, nil
}
func (r *ServiceBindingReconciler) getServiceInstanceForBinding(ctx context.Context, binding *servicesv1.ServiceBinding) (*servicesv1.ServiceInstance, error) {
log := utils.GetLogger(ctx)
serviceInstance := &servicesv1.ServiceInstance{}
namespace := binding.Namespace
if len(binding.Spec.ServiceInstanceNamespace) > 0 {
namespace = binding.Spec.ServiceInstanceNamespace
}
log.Info(fmt.Sprintf("getting service instance named %s in namespace %s for binding %s in namespace %s", binding.Spec.ServiceInstanceName, namespace, binding.Name, binding.Namespace))
if err := r.Client.Get(ctx, types.NamespacedName{Name: binding.Spec.ServiceInstanceName, Namespace: namespace}, serviceInstance); err != nil {
return serviceInstance, err
}
return serviceInstance.DeepCopy(), nil
}
func (r *ServiceBindingReconciler) setOwner(ctx context.Context, serviceInstance *servicesv1.ServiceInstance, serviceBinding *servicesv1.ServiceBinding) error {
log := utils.GetLogger(ctx)
log.Info("Binding instance as owner of binding", "bindingName", serviceBinding.Name, "instanceName", serviceInstance.Name)
if err := controllerutil.SetControllerReference(serviceInstance, serviceBinding, r.Scheme); err != nil {
log.Error(err, fmt.Sprintf("Could not update the smBinding %s owner instance reference", serviceBinding.Name))
return err
}
if err := r.Client.Update(ctx, serviceBinding); err != nil {
log.Error(err, "Failed to set controller reference", "bindingName", serviceBinding.Name)
return err
}
return nil
}
func (r *ServiceBindingReconciler) resyncBindingStatus(ctx context.Context, k8sBinding *servicesv1.ServiceBinding, smBinding *smClientTypes.ServiceBinding) {
k8sBinding.Status.ObservedGeneration = k8sBinding.Generation
k8sBinding.Status.BindingID = smBinding.ID
k8sBinding.Status.InstanceID = smBinding.ServiceInstanceID
k8sBinding.Status.OperationURL = ""
k8sBinding.Status.OperationType = ""
bindingStatus := smClientTypes.SUCCEEDED
operationType := smClientTypes.CREATE
description := ""
if smBinding.LastOperation != nil {
bindingStatus = smBinding.LastOperation.State
operationType = smBinding.LastOperation.Type
description = smBinding.LastOperation.Description
} else if !smBinding.Ready {
bindingStatus = smClientTypes.FAILED
}
switch bindingStatus {
case smClientTypes.PENDING:
fallthrough
case smClientTypes.INPROGRESS:
k8sBinding.Status.OperationURL = sm.BuildOperationURL(smBinding.LastOperation.ID, smBinding.ID, smClientTypes.ServiceBindingsURL)
k8sBinding.Status.OperationType = smBinding.LastOperation.Type
utils.SetInProgressConditions(ctx, smBinding.LastOperation.Type, smBinding.LastOperation.Description, k8sBinding)
case smClientTypes.SUCCEEDED:
utils.SetSuccessConditions(operationType, k8sBinding)
case smClientTypes.FAILED:
utils.SetFailureConditions(operationType, description, k8sBinding)
}
}
func (r *ServiceBindingReconciler) storeBindingSecret(ctx context.Context, k8sBinding *servicesv1.ServiceBinding, smBinding *smClientTypes.ServiceBinding) error {
log := utils.GetLogger(ctx)
logger := log.WithValues("bindingName", k8sBinding.Name, "secretName", k8sBinding.Spec.SecretName)
var secret *corev1.Secret
var err error
if k8sBinding.Spec.SecretTemplate != "" {
secret, err = r.createBindingSecretFromSecretTemplate(ctx, k8sBinding, smBinding)
} else {
secret, err = r.createBindingSecret(ctx, k8sBinding, smBinding)
}
if err != nil {
return err
}
if err = controllerutil.SetControllerReference(k8sBinding, secret, r.Scheme); err != nil {
logger.Error(err, "Failed to set secret owner")
return err
}
if len(secret.Labels) == 0 {
secret.Labels = map[string]string{}
}
secret.Labels[common.ManagedByBTPOperatorLabel] = "true"
return r.createOrUpdateBindingSecret(ctx, k8sBinding, secret)
}
func (r *ServiceBindingReconciler) createBindingSecret(ctx context.Context, k8sBinding *servicesv1.ServiceBinding, smBinding *smClientTypes.ServiceBinding) (*corev1.Secret, error) {
credentialsMap, err := r.getSecretDefaultData(ctx, k8sBinding, smBinding)
if err != nil {
return nil, err
}
secret := &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: k8sBinding.Spec.SecretName,
Annotations: map[string]string{"binding": k8sBinding.Name},
Namespace: k8sBinding.Namespace,
},
Data: credentialsMap,
}
return secret, nil
}
func (r *ServiceBindingReconciler) getSecretDefaultData(ctx context.Context, k8sBinding *servicesv1.ServiceBinding, smBinding *smClientTypes.ServiceBinding) (map[string][]byte, error) {
log := utils.GetLogger(ctx).WithValues("bindingName", k8sBinding.Name, "secretName", k8sBinding.Spec.SecretName)
var credentialsMap map[string][]byte
var credentialProperties []utils.SecretMetadataProperty
if len(smBinding.Credentials) == 0 {
log.Info("Binding credentials are empty")
credentialsMap = make(map[string][]byte)
} else if k8sBinding.Spec.SecretKey != nil {
credentialsMap = map[string][]byte{
*k8sBinding.Spec.SecretKey: smBinding.Credentials,
}
credentialProperties = []utils.SecretMetadataProperty{
{
Name: *k8sBinding.Spec.SecretKey,
Format: string(utils.JSON),
Container: true,
},
}
} else {
var err error
credentialsMap, credentialProperties, err = utils.NormalizeCredentials(smBinding.Credentials)
if err != nil {
log.Error(err, "Failed to store binding secret")
return nil, fmt.Errorf("failed to create secret. Error: %v", err.Error())
}
}
metaDataProperties, err := r.addInstanceInfo(ctx, k8sBinding, credentialsMap)
if err != nil {
log.Error(err, "failed to enrich binding with service instance info")
}
if k8sBinding.Spec.SecretRootKey != nil {
var err error
credentialsMap, err = singleKeyMap(credentialsMap, *k8sBinding.Spec.SecretRootKey)
if err != nil {
return nil, err
}
} else {
metadata := map[string][]utils.SecretMetadataProperty{
"metaDataProperties": metaDataProperties,
"credentialProperties": credentialProperties,
}
metadataByte, err := json.Marshal(metadata)
if err != nil {
log.Error(err, "failed to enrich binding with metadata")
} else {
credentialsMap[".metadata"] = metadataByte
}
}
return credentialsMap, nil
}
func (r *ServiceBindingReconciler) createBindingSecretFromSecretTemplate(ctx context.Context, k8sBinding *servicesv1.ServiceBinding, smBinding *smClientTypes.ServiceBinding) (*corev1.Secret, error) {
log := utils.GetLogger(ctx)
logger := log.WithValues("bindingName", k8sBinding.Name, "secretName", k8sBinding.Spec.SecretName)
logger.Info("Create Object using SecretTemplate from ServiceBinding Specs")
inputSmCredentials := smBinding.Credentials
smBindingCredentials := make(map[string]interface{})
if inputSmCredentials != nil {
err := json.Unmarshal(inputSmCredentials, &smBindingCredentials)
if err != nil {
logger.Error(err, "failed to unmarshal given service binding credentials")
return nil, errors.Wrap(err, "failed to unmarshal given service binding credentials")
}
}
instanceInfos, err := r.getInstanceInfo(ctx, k8sBinding)
if err != nil {
logger.Error(err, "failed to addInstanceInfo")
return nil, errors.Wrap(err, "failed to add service instance info")
}
parameters := commonutils.GetSecretDataForTemplate(smBindingCredentials, instanceInfos)
templateName := fmt.Sprintf("%s/%s", k8sBinding.Namespace, k8sBinding.Name)
secret, err := commonutils.CreateSecretFromTemplate(templateName, k8sBinding.Spec.SecretTemplate, "missingkey=error", parameters)
if err != nil {
logger.Error(err, "failed to create secret from template")
return nil, errors.Wrap(err, "failed to create secret from template")
}
secret.SetNamespace(k8sBinding.Namespace)
secret.SetName(k8sBinding.Spec.SecretName)
// if no data provided use the default data
if len(secret.Data) == 0 && len(secret.StringData) == 0 {
credentialsMap, err := r.getSecretDefaultData(ctx, k8sBinding, smBinding)
if err != nil {
return nil, err
}
secret.Data = credentialsMap
}
return secret, nil
}
func (r *ServiceBindingReconciler) createOrUpdateBindingSecret(ctx context.Context, binding *servicesv1.ServiceBinding, secret *corev1.Secret) error {
log := utils.GetLogger(ctx)
dbSecret := &corev1.Secret{}
create := false
if err := r.Client.Get(ctx, types.NamespacedName{Name: binding.Spec.SecretName, Namespace: binding.Namespace}, dbSecret); err != nil {
if !apierrors.IsNotFound(err) {
return err
}
create = true
}
if create {
log.Info("Creating binding secret", "name", secret.Name)
if err := r.Client.Create(ctx, secret); err != nil {
if !apierrors.IsAlreadyExists(err) {
return err
}
return nil
}
r.Recorder.Event(binding, corev1.EventTypeNormal, "SecretCreated", "SecretCreated")
return nil
}
log.Info("Updating existing binding secret", "name", secret.Name)
dbSecret.Data = secret.Data
dbSecret.StringData = secret.StringData
dbSecret.Labels = secret.Labels
dbSecret.Annotations = secret.Annotations
return r.Client.Update(ctx, dbSecret)
}
func (r *ServiceBindingReconciler) deleteBindingSecret(ctx context.Context, binding *servicesv1.ServiceBinding) error {
log := utils.GetLogger(ctx)
log.Info("Deleting binding secret")
bindingSecret := &corev1.Secret{}
if err := r.Client.Get(ctx, types.NamespacedName{
Namespace: binding.Namespace,
Name: binding.Spec.SecretName,
}, bindingSecret); err != nil {
if !apierrors.IsNotFound(err) {
log.Error(err, "unable to fetch binding secret")
return err
}
// secret not found, nothing more to do
log.Info("secret was deleted successfully")
return nil
}
bindingSecret = bindingSecret.DeepCopy()
if err := r.Client.Delete(ctx, bindingSecret); err != nil {
log.Error(err, "Failed to delete binding secret")
return err
}
log.Info("secret was deleted successfully")
return nil
}
func (r *ServiceBindingReconciler) deleteSecretAndRemoveFinalizer(ctx context.Context, serviceBinding *servicesv1.ServiceBinding) (ctrl.Result, error) {
// delete binding secret if exist
if err := r.deleteBindingSecret(ctx, serviceBinding); err != nil {
return ctrl.Result{}, err
}
return ctrl.Result{}, utils.RemoveFinalizer(ctx, r.Client, serviceBinding, common.FinalizerName)
}
func (r *ServiceBindingReconciler) getSecret(ctx context.Context, namespace string, name string) (*corev1.Secret, error) {
secret := &corev1.Secret{}
err := r.Client.Get(ctx, types.NamespacedName{Namespace: namespace, Name: name}, secret)
return secret, err
}
func (r *ServiceBindingReconciler) validateSecretNameIsAvailable(ctx context.Context, binding *servicesv1.ServiceBinding) error {
currentSecret, err := r.getSecret(ctx, binding.Namespace, binding.Spec.SecretName)
if err != nil {
return client.IgnoreNotFound(err)
}
if metav1.IsControlledBy(currentSecret, binding) {
return nil
}
ownerRef := metav1.GetControllerOf(currentSecret)
if ownerRef != nil {
owner, err := schema.ParseGroupVersion(ownerRef.APIVersion)
if err != nil {
return err
}
if owner.Group == binding.GroupVersionKind().Group && ownerRef.Kind == binding.Kind {
return fmt.Errorf(secretAlreadyOwnedErrorFormat, binding.Spec.SecretName, ownerRef.Name)
}
}
return fmt.Errorf(secretNameTakenErrorFormat, binding.Spec.SecretName)
}
func (r *ServiceBindingReconciler) handleSecretError(ctx context.Context, op smClientTypes.OperationCategory, err error, binding *servicesv1.ServiceBinding) (ctrl.Result, error) {
log := utils.GetLogger(ctx)
log.Error(err, fmt.Sprintf("failed to store secret %s for binding %s", binding.Spec.SecretName, binding.Name))
if apierrors.ReasonForError(err) == metav1.StatusReasonUnknown {
return utils.MarkAsNonTransientError(ctx, r.Client, op, err.Error(), binding)
}
return utils.MarkAsTransientError(ctx, r.Client, op, err, binding)
}
func (r *ServiceBindingReconciler) getInstanceInfo(ctx context.Context, binding *servicesv1.ServiceBinding) (map[string]string, error) {
instance, err := r.getServiceInstanceForBinding(ctx, binding)
if err != nil {
return nil, err
}
instanceInfos := make(map[string]string)
instanceInfos["instance_name"] = string(getInstanceNameForSecretCredentials(instance))
instanceInfos["instance_guid"] = instance.Status.InstanceID
instanceInfos["plan"] = instance.Spec.ServicePlanName
instanceInfos["label"] = instance.Spec.ServiceOfferingName
instanceInfos["type"] = instance.Spec.ServiceOfferingName
if len(instance.Status.Tags) > 0 || len(instance.Spec.CustomTags) > 0 {
tags := mergeInstanceTags(instance.Status.Tags, instance.Spec.CustomTags)
instanceInfos["tags"] = strings.Join(tags, ",")
}
return instanceInfos, nil
}
func (r *ServiceBindingReconciler) addInstanceInfo(ctx context.Context, binding *servicesv1.ServiceBinding, credentialsMap map[string][]byte) ([]utils.SecretMetadataProperty, error) {
instance, err := r.getServiceInstanceForBinding(ctx, binding)
if err != nil {
return nil, err
}
credentialsMap["instance_name"] = getInstanceNameForSecretCredentials(instance)
credentialsMap["instance_guid"] = []byte(instance.Status.InstanceID)
credentialsMap["plan"] = []byte(instance.Spec.ServicePlanName)
credentialsMap["label"] = []byte(instance.Spec.ServiceOfferingName)
credentialsMap["type"] = []byte(instance.Spec.ServiceOfferingName)
if len(instance.Status.Tags) > 0 || len(instance.Spec.CustomTags) > 0 {
tagsBytes, err := json.Marshal(mergeInstanceTags(instance.Status.Tags, instance.Spec.CustomTags))
if err != nil {
return nil, err
}
credentialsMap["tags"] = tagsBytes
}
metadata := []utils.SecretMetadataProperty{
{
Name: "instance_name",
Format: string(utils.TEXT),
},
{
Name: "instance_guid",
Format: string(utils.TEXT),
},
{
Name: "plan",
Format: string(utils.TEXT),
},
{
Name: "label",
Format: string(utils.TEXT),
},
{
Name: "type",
Format: string(utils.TEXT),
},
}
if _, ok := credentialsMap["tags"]; ok {
metadata = append(metadata, utils.SecretMetadataProperty{Name: "tags", Format: string(utils.JSON)})
}
return metadata, nil
}
func (r *ServiceBindingReconciler) rotateCredentials(ctx context.Context, binding *servicesv1.ServiceBinding, btpAccessCredentialsSecret string) error {
suffix := "-" + utils.RandStringRunes(6)
log := utils.GetLogger(ctx)
if binding.Annotations != nil {
if _, ok := binding.Annotations[common.ForceRotateAnnotation]; ok {
log.Info("Credentials rotation - deleting force rotate annotation")
delete(binding.Annotations, common.ForceRotateAnnotation)
if err := r.Client.Update(ctx, binding); err != nil {
log.Info("Credentials rotation - failed to delete force rotate annotation")
return err
}
}
}
credInProgressCondition := meta.FindStatusCondition(binding.GetConditions(), common.ConditionCredRotationInProgress)
if credInProgressCondition.Reason == common.CredRotating {
if len(binding.Status.BindingID) > 0 && binding.Status.Ready == metav1.ConditionTrue {
log.Info("Credentials rotation - finished successfully")
now := metav1.NewTime(time.Now())
binding.Status.LastCredentialsRotationTime = &now
return r.stopRotation(ctx, binding)
} else if utils.IsFailed(binding) {
log.Info("Credentials rotation - binding failed stopping rotation")
return r.stopRotation(ctx, binding)
}
log.Info("Credentials rotation - waiting to finish")
return nil
}
if len(binding.Status.BindingID) == 0 {
log.Info("Credentials rotation - no binding id found nothing to do")
return r.stopRotation(ctx, binding)
}
bindings := &servicesv1.ServiceBindingList{}
err := r.Client.List(ctx, bindings, client.MatchingLabels{common.StaleBindingIDLabel: binding.Status.BindingID}, client.InNamespace(binding.Namespace))
if err != nil {
return err
}
if len(bindings.Items) == 0 {
smClient, err := r.GetSMClient(ctx, r.SecretResolver, binding.Namespace, btpAccessCredentialsSecret)
if err != nil {
return err
}
// rename current binding
log.Info("Credentials rotation - renaming binding to old in SM", "current", binding.Spec.ExternalName)
if _, errRenaming := smClient.RenameBinding(binding.Status.BindingID, binding.Spec.ExternalName+suffix, binding.Name+suffix); errRenaming != nil {
log.Error(errRenaming, "Credentials rotation - failed renaming binding to old in SM", "binding", binding.Spec.ExternalName)
utils.SetCredRotationInProgressConditions(common.CredPreparing, errRenaming.Error(), binding)
if errStatus := utils.UpdateStatus(ctx, r.Client, binding); errStatus != nil {
return errStatus
}
return errRenaming
}
log.Info("Credentials rotation - backing up old binding in K8S", "name", binding.Name+suffix)
if err := r.createOldBinding(ctx, suffix, binding); err != nil {
log.Error(err, "Credentials rotation - failed to back up old binding in K8S")
utils.SetCredRotationInProgressConditions(common.CredPreparing, err.Error(), binding)
if errStatus := utils.UpdateStatus(ctx, r.Client, binding); errStatus != nil {
return errStatus
}
return err
}
}
binding.Status.BindingID = ""
binding.Status.Ready = metav1.ConditionFalse
utils.SetInProgressConditions(ctx, smClientTypes.CREATE, "rotating binding credentials", binding)
utils.SetCredRotationInProgressConditions(common.CredRotating, "", binding)
return utils.UpdateStatus(ctx, r.Client, binding)
}
func (r *ServiceBindingReconciler) stopRotation(ctx context.Context, binding *servicesv1.ServiceBinding) error {
conditions := binding.GetConditions()
meta.RemoveStatusCondition(&conditions, common.ConditionCredRotationInProgress)
binding.Status.Conditions = conditions
return utils.UpdateStatus(ctx, r.Client, binding)
}
func (r *ServiceBindingReconciler) createOldBinding(ctx context.Context, suffix string, binding *servicesv1.ServiceBinding) error {
oldBinding := newBindingObject(binding.Name+suffix, binding.Namespace)
err := controllerutil.SetControllerReference(binding, oldBinding, r.Scheme)
if err != nil {
return err
}
oldBinding.Labels = map[string]string{
common.StaleBindingIDLabel: binding.Status.BindingID,
common.StaleBindingRotationOfLabel: binding.Name,
}
spec := binding.Spec.DeepCopy()
spec.CredRotationPolicy.Enabled = false
spec.SecretName = spec.SecretName + suffix
spec.ExternalName = spec.ExternalName + suffix