a7e2abe5fa
This will only be needed by the SecretsFilteredCaching feature, but I cannot think of any harm by adding it to general path Signed-off-by: irbekrm <irbekrm@gmail.com>
123 lines
4.1 KiB
Go
123 lines
4.1 KiB
Go
/*
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Copyright 2022 The cert-manager Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package selfsigned
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import (
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"fmt"
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"github.com/go-logr/logr"
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corev1 "k8s.io/api/core/v1"
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k8sErrors "k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/client-go/util/workqueue"
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apiutil "github.com/cert-manager/cert-manager/pkg/api/util"
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cmdoc "github.com/cert-manager/cert-manager/pkg/apis/certmanager"
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cmapi "github.com/cert-manager/cert-manager/pkg/apis/certmanager/v1"
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clientv1 "github.com/cert-manager/cert-manager/pkg/client/listers/certmanager/v1"
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controllerpkg "github.com/cert-manager/cert-manager/pkg/controller"
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"github.com/cert-manager/cert-manager/pkg/issuer"
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logf "github.com/cert-manager/cert-manager/pkg/logs"
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)
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// handleSecretReferenceWorkFunc is a function that returns am informer event
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// handler work function, which is used to sync CertificateRequests that
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// reference the synced Secret through the
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// "cert-manager.io/private-key-secret-name" annotation.
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func handleSecretReferenceWorkFunc(log logr.Logger,
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lister clientv1.CertificateRequestLister,
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helper issuer.Helper,
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queue workqueue.RateLimitingInterface,
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) func(obj any) {
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return func(obj any) {
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log := log.WithName("handleSecretReference")
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secret, ok := controllerpkg.ToSecret(obj)
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if !ok {
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log.Error(nil, "object is not a secret", "object", obj)
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return
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}
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log = logf.WithResource(log, secret)
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requests, err := certificateRequestsForSecret(log, lister, helper, secret)
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if err != nil {
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log.Error(err, "failed to determine affected certificate requests")
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return
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}
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for _, request := range requests {
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log := logf.WithRelatedResource(log, request)
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key, err := controllerpkg.KeyFunc(request)
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if err != nil {
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log.Error(err, "error computing key for resource")
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continue
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}
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queue.Add(key)
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}
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}
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}
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// certificateRequestsForSecret returns a list of CertificateRequests in the
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// same Namespace as the given Secret, reference the given Secret via the
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// "cert-manager.io/private-key-secret-name" annotation, and the request
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// targets a SelfSigned Issuer or Cluster Issuer.
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func certificateRequestsForSecret(log logr.Logger,
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lister clientv1.CertificateRequestLister,
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helper issuer.Helper,
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secret *corev1.Secret,
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) ([]*cmapi.CertificateRequest, error) {
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dbg := log.V(logf.DebugLevel)
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requests, err := lister.CertificateRequests(secret.Namespace).List(labels.Everything())
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if err != nil {
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return nil, fmt.Errorf("failed to list certificate requests: %w", err)
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}
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dbg.Info("checking if self signed certificate requests reference secret")
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var affected []*cmapi.CertificateRequest
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for _, request := range requests {
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if request.Spec.IssuerRef.Group != cmdoc.GroupName {
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dbg.Info("skipping SelfSigned secret reference checks since issuer has external group", "group", request.Spec.IssuerRef.Group)
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continue
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}
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issuerObj, err := helper.GetGenericIssuer(request.Spec.IssuerRef, request.Namespace)
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if k8sErrors.IsNotFound(err) {
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dbg.Info("issuer not found, skipping")
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continue
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}
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if err != nil {
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log.Error(err, "failed to get issuer")
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return nil, err
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}
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dbg = logf.WithRelatedResource(dbg, issuerObj)
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dbg.Info("ensuring issuer type matches this controller")
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issuerType, err := apiutil.NameForIssuer(issuerObj)
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if err != nil {
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dbg.Error(err, "failed to determine issuer type, skipping")
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continue
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}
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if issuerType == apiutil.IssuerSelfSigned &&
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request.GetAnnotations()[cmapi.CertificateRequestPrivateKeyAnnotationKey] == secret.Name {
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dbg.Info("certificate request references secret, syncing")
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affected = append(affected, request)
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}
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}
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return affected, nil
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}
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