forked from openshift/cloud-credential-operator
/
cleanup_controller.go
177 lines (145 loc) · 5.61 KB
/
cleanup_controller.go
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package cleanup
import (
"context"
"fmt"
"time"
log "github.com/sirupsen/logrus"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller"
"sigs.k8s.io/controller-runtime/pkg/event"
"sigs.k8s.io/controller-runtime/pkg/handler"
"sigs.k8s.io/controller-runtime/pkg/manager"
"sigs.k8s.io/controller-runtime/pkg/predicate"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
"sigs.k8s.io/controller-runtime/pkg/source"
operatorv1 "github.com/openshift/api/operator/v1"
minterv1 "github.com/openshift/cloud-credential-operator/pkg/apis/cloudcredential/v1"
"github.com/openshift/cloud-credential-operator/pkg/operator/constants"
"github.com/openshift/cloud-credential-operator/pkg/operator/metrics"
"github.com/openshift/cloud-credential-operator/pkg/operator/status"
"github.com/openshift/cloud-credential-operator/pkg/operator/utils"
)
const (
controllerName = "cleanup"
defaultRequeuePeriod = time.Minute * 5
)
// newReconciler returns a new reconcile.Reconciler
func newReconciler(mgr manager.Manager) reconcile.Reconciler {
r := &ReconcileStaleCredentialsRequest{
Client: mgr.GetClient(),
}
status.AddHandler(controllerName, r)
return r
}
// Add creates a new Cleanup Controller and adds it to the Manager.
func Add(mgr manager.Manager, kubeConfig string) error {
r := newReconciler(mgr)
// Create a new controller
c, err := controller.New(controllerName, mgr, controller.Options{Reconciler: r})
if err != nil {
return err
}
// trigger a sync only in case of an event for a stale credential request
stateCredentialRequestPredicate := predicate.Funcs{
UpdateFunc: func(e event.UpdateEvent) bool {
return isStaleCredentialsRequest(e.ObjectNew.GetNamespace(), e.ObjectNew.GetName())
},
CreateFunc: func(e event.CreateEvent) bool {
return isStaleCredentialsRequest(e.Object.GetNamespace(), e.Object.GetName())
},
DeleteFunc: func(e event.DeleteEvent) bool {
return isStaleCredentialsRequest(e.Object.GetNamespace(), e.Object.GetName())
},
}
// Watch for changes to CredentialsRequest and reconcile only the stale one
err = c.Watch(
&source.Kind{Type: &minterv1.CredentialsRequest{}},
&handler.EnqueueRequestForObject{},
stateCredentialRequestPredicate)
if err != nil {
return err
}
return nil
}
func isStaleCredentialsRequest(namespace, credentialRequestName string) bool {
cr := types.NamespacedName{Name: credentialRequestName, Namespace: namespace}
if contains(constants.StaleCredentialsRequests, cr) {
log.WithField("cr", credentialRequestName).WithField("namespace", namespace).Info("observed stale credential request event")
return true
}
return false
}
// contains checks if a given credential request is present in a slice of stale credential requests
func contains(credentialRequests []types.NamespacedName, credentialRequest types.NamespacedName) bool {
for _, cr := range credentialRequests {
if cr == credentialRequest {
return true
}
}
return false
}
var _ reconcile.Reconciler = &ReconcileStaleCredentialsRequest{}
// ReconcileStaleCredentialsRequest reconciles a stale CredentialsRequest object
type ReconcileStaleCredentialsRequest struct {
client.Client
}
// Reconcile marks the stale CredentialsRequest object for deletion
func (r *ReconcileStaleCredentialsRequest) Reconcile(ctx context.Context, request reconcile.Request) (reconcile.Result, error) {
start := time.Now()
logger := log.WithFields(log.Fields{
"controller": controllerName,
"cr": fmt.Sprintf("%s/%s", request.NamespacedName.Namespace, request.NamespacedName.Name),
})
defer func() {
dur := time.Since(start)
metrics.MetricControllerReconcileTime.WithLabelValues(controllerName).Observe(dur.Seconds())
}()
mode, conflict, err := utils.GetOperatorConfiguration(r.Client, logger)
if err != nil {
logger.WithError(err).Error("error checking if operator is disabled")
return reconcile.Result{}, err
} else if conflict {
logger.Error("configuration conflict betwen legacy configmap and operator config")
return reconcile.Result{}, fmt.Errorf("configuration conflict")
}
logger.Info("syncing stale credentials request")
cr := &minterv1.CredentialsRequest{}
err = r.Get(context.TODO(), request.NamespacedName, cr)
if err != nil {
if errors.IsNotFound(err) {
logger.Debug("credentials request no longer exists")
return reconcile.Result{}, nil
}
logger.WithError(err).Error("error getting credentials request, requeuing")
return reconcile.Result{}, err
}
logger = logger.WithFields(log.Fields{
"secret": fmt.Sprintf("%s/%s", cr.Spec.SecretRef.Namespace, cr.Spec.SecretRef.Name),
})
origCR := cr
cr = cr.DeepCopy()
if mode == operatorv1.CloudCredentialsModeManual {
logger.Warnf("operator set to disabled / manual mode, user needs to delete stale credentials")
msg := fmt.Sprintf("CredentialsRequest is no longer required. Delete CR, Secret containing credentials, and associated platform/cloud resources")
reason := "CredentialsNoLongerRequired"
updateCheck := utils.UpdateConditionIfReasonOrMessageChange
status := corev1.ConditionTrue
cr.Status.Conditions = utils.SetCredentialsRequestCondition(cr.Status.Conditions, minterv1.StaleCredentials,
status, reason, msg, updateCheck)
err := utils.UpdateStatus(r.Client, origCR, cr, logger)
if err != nil {
logger.WithError(err).Error("failed to update conditions")
}
return reconcile.Result{}, err
}
// Delete stale credentials request
if cr.DeletionTimestamp == nil {
err = r.Client.Delete(context.TODO(), cr)
}
return reconcile.Result{
RequeueAfter: defaultRequeuePeriod,
}, err
}