2 * ============LICENSE_START=======================================================
3 * oom-certservice-k8s-external-provider
4 * ================================================================================
5 * Copyright 2019 The cert-manager authors.
6 * Copyright (C) 2020-2021 Nokia. All rights reserved.
7 * ================================================================================
8 * This source code was copied from the following git repository:
9 * https://github.com/smallstep/step-issuer
10 * The source code was modified for usage in the ONAP project.
11 * ================================================================================
12 * Licensed under the Apache License, Version 2.0 (the "License");
13 * you may not use this file except in compliance with the License.
14 * You may obtain a copy of the License at
16 * http://www.apache.org/licenses/LICENSE-2.0
18 * Unless required by applicable law or agreed to in writing, software
19 * distributed under the License is distributed on an "AS IS" BASIS,
20 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
21 * See the License for the specific language governing permissions and
22 * limitations under the License.
23 * ============LICENSE_END=========================================================
26 package cmpv2controller
32 cmapi "github.com/jetstack/cert-manager/pkg/apis/certmanager/v1"
33 core "k8s.io/api/core/v1"
34 apierrors "k8s.io/apimachinery/pkg/api/errors"
35 "k8s.io/apimachinery/pkg/types"
36 "k8s.io/client-go/tools/record"
37 ctrl "sigs.k8s.io/controller-runtime"
38 "sigs.k8s.io/controller-runtime/pkg/client"
40 "onap.org/oom-certservice/k8s-external-provider/src/cmpv2api"
41 "onap.org/oom-certservice/k8s-external-provider/src/cmpv2controller/logger"
42 "onap.org/oom-certservice/k8s-external-provider/src/cmpv2controller/updater"
43 "onap.org/oom-certservice/k8s-external-provider/src/cmpv2controller/util"
44 provisioners "onap.org/oom-certservice/k8s-external-provider/src/cmpv2provisioner"
45 "onap.org/oom-certservice/k8s-external-provider/src/leveledlogger"
46 "onap.org/oom-certservice/k8s-external-provider/src/model"
47 x509utils "onap.org/oom-certservice/k8s-external-provider/src/x509"
51 privateKeySecretNameAnnotation = "cert-manager.io/private-key-secret-name"
52 privateKeySecretKey = "tls.key"
55 // CertificateRequestController reconciles a CMPv2Issuer object.
56 type CertificateRequestController struct {
58 Recorder record.EventRecorder
59 Log leveledlogger.Logger
62 // Reconcile will read and validate a CMPv2Issuer resource associated to the
63 // CertificateRequest resource, and it will sign the CertificateRequest with the
64 // provisioner in the CMPv2Issuer.
65 func (controller *CertificateRequestController) Reconcile(k8sRequest ctrl.Request) (ctrl.Result, error) {
66 ctx := context.Background()
67 log := leveledlogger.GetLoggerWithValues("certificate-request-controller", k8sRequest.NamespacedName)
69 // 1. Fetch the CertificateRequest resource being reconciled.
70 certificateRequest := new(cmapi.CertificateRequest)
71 certUpdater := updater.NewCertificateRequestUpdater(controller.Client, controller.Recorder, certificateRequest, ctx, log)
73 log.Info("Registered new certificate sign request: ", "cert-name", certificateRequest.Name)
74 if err := controller.Client.Get(ctx, k8sRequest.NamespacedName, certificateRequest); err != nil {
75 err = handleErrorResourceNotFound(log, err)
76 return ctrl.Result{}, err
79 // 2. Check if CertificateRequest is meant for CMPv2Issuer (if not ignore)
80 if !isCMPv2CertificateRequest(certificateRequest) {
81 log.Info("Certificate request is not meant for CMPv2Issuer (ignoring)",
82 "group", certificateRequest.Spec.IssuerRef.Group,
83 "kind", certificateRequest.Spec.IssuerRef.Kind)
84 return ctrl.Result{}, nil
87 // 3. If the certificate data is already set then we skip this request as it
88 // has already been completed in the past.
89 if len(certificateRequest.Status.Certificate) > 0 {
90 log.Info("Existing certificate data found in status, skipping already completed CertificateRequest")
91 return ctrl.Result{}, nil
94 // 4. Fetch the CMPv2Issuer resource
95 issuer := cmpv2api.CMPv2Issuer{}
96 issuerNamespaceName := types.NamespacedName{
97 Namespace: k8sRequest.Namespace,
98 Name: certificateRequest.Spec.IssuerRef.Name,
100 if err := controller.Client.Get(ctx, issuerNamespaceName, &issuer); err != nil {
101 controller.handleErrorGettingCMPv2Issuer(certUpdater, log, err, certificateRequest, issuerNamespaceName, k8sRequest)
102 return ctrl.Result{}, client.IgnoreNotFound(err)
105 // 5. Check if CMPv2Issuer is ready to sing certificates
106 if !isCMPv2IssuerReady(issuer) {
107 err := controller.handleErrorCMPv2IssuerIsNotReady(certUpdater, log, issuerNamespaceName, certificateRequest, k8sRequest)
108 return ctrl.Result{}, err
111 // 6. Load the provisioner that will sign the CertificateRequest
112 provisioner, ok := provisioners.Load(issuerNamespaceName)
114 err := controller.handleErrorCouldNotLoadCMPv2Provisioner(certUpdater, log, issuerNamespaceName)
115 return ctrl.Result{}, client.IgnoreNotFound(err)
118 // 7. Get private key matching CertificateRequest
119 privateKeySecretName := certificateRequest.ObjectMeta.Annotations[privateKeySecretNameAnnotation]
120 privateKeySecretNamespaceName := types.NamespacedName{
121 Namespace: k8sRequest.Namespace,
122 Name: privateKeySecretName,
124 var privateKeySecret core.Secret
125 if err := controller.Client.Get(ctx, privateKeySecretNamespaceName, &privateKeySecret); err != nil {
126 controller.handleErrorGettingPrivateKey(certUpdater, log, err, privateKeySecretNamespaceName)
127 return ctrl.Result{}, err
129 privateKeyBytes := privateKeySecret.Data[privateKeySecretKey]
132 log.Info("Decoding CSR...")
133 csr, err := x509utils.DecodeCSR(certificateRequest.Spec.Request)
135 controller.handleErrorFailedToDecodeCSR(certUpdater, log, err)
136 return ctrl.Result{}, err
139 // 9. Log Certificate Request properties not supported or overridden by CertService API
140 logger.LogCertRequestProperties(leveledlogger.GetLoggerWithName("CSR details:"), certificateRequest, csr)
142 // 10. Check if CertificateRequest is an update request
143 isUpdateRevision, oldCertificate, oldPrivateKey := util.CheckIfCertificateUpdateAndRetrieveOldCertificateAndPk(
144 controller.Client, certificateRequest, ctx)
145 if isUpdateRevision {
146 log.Info("Update revision detected")
148 signCertificateModel := model.SignCertificateModel{
149 CertificateRequest: certificateRequest,
150 PrivateKeyBytes: privateKeyBytes,
151 IsUpdateRevision: isUpdateRevision,
152 OldCertificate: oldCertificate,
153 OldPrivateKey: oldPrivateKey,
156 // 11. Sign CertificateRequest
157 signedPEM, trustedCAs, err := provisioner.Sign(ctx, signCertificateModel)
159 controller.handleErrorFailedToSignCertificate(certUpdater, log, err)
160 return ctrl.Result{}, nil
163 // 12. Store signed certificates in CertificateRequest
164 certificateRequest.Status.Certificate = signedPEM
165 certificateRequest.Status.CA = trustedCAs
166 if err := certUpdater.UpdateCertificateRequestWithSignedCertificates(); err != nil {
167 return ctrl.Result{}, err
170 return ctrl.Result{}, nil
173 func (controller *CertificateRequestController) SetupWithManager(manager ctrl.Manager) error {
174 return ctrl.NewControllerManagedBy(manager).
175 For(&cmapi.CertificateRequest{}).
179 func isCMPv2IssuerReady(issuer cmpv2api.CMPv2Issuer) bool {
180 condition := cmpv2api.CMPv2IssuerCondition{Type: cmpv2api.ConditionReady, Status: cmpv2api.ConditionTrue}
181 return hasCondition(issuer, condition)
184 func hasCondition(issuer cmpv2api.CMPv2Issuer, condition cmpv2api.CMPv2IssuerCondition) bool {
185 existingConditions := issuer.Status.Conditions
186 for _, cond := range existingConditions {
187 if condition.Type == cond.Type && condition.Status == cond.Status {
194 func isCMPv2CertificateRequest(certificateRequest *cmapi.CertificateRequest) bool {
195 return certificateRequest.Spec.IssuerRef.Group != "" &&
196 certificateRequest.Spec.IssuerRef.Group == cmpv2api.GroupVersion.Group &&
197 certificateRequest.Spec.IssuerRef.Kind == cmpv2api.CMPv2IssuerKind
203 func (controller *CertificateRequestController) handleErrorCouldNotLoadCMPv2Provisioner(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, issuerNamespaceName types.NamespacedName) error {
204 err := fmt.Errorf("provisioner %s not found", issuerNamespaceName)
205 log.Error(err, "Failed to load CMPv2 Provisioner resource")
206 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonPending, "Failed to load provisioner for CMPv2Issuer resource %s", issuerNamespaceName)
210 func (controller *CertificateRequestController) handleErrorCMPv2IssuerIsNotReady(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, issuerNamespaceName types.NamespacedName, certificateRequest *cmapi.CertificateRequest, req ctrl.Request) error {
211 err := fmt.Errorf("resource %s is not ready", issuerNamespaceName)
212 log.Error(err, "CMPv2Issuer not ready", "namespace", req.Namespace, "name", certificateRequest.Spec.IssuerRef.Name)
213 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonPending, "CMPv2Issuer resource %s is not Ready", issuerNamespaceName)
217 func (controller *CertificateRequestController) handleErrorGettingCMPv2Issuer(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, err error, certificateRequest *cmapi.CertificateRequest, issuerNamespaceName types.NamespacedName, req ctrl.Request) {
218 log.Error(err, "Failed to retrieve CMPv2Issuer resource", "namespace", req.Namespace, "name", certificateRequest.Spec.IssuerRef.Name)
219 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonPending, "Failed to retrieve CMPv2Issuer resource %s: %v", issuerNamespaceName, err)
222 func (controller *CertificateRequestController) handleErrorGettingPrivateKey(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, err error, pkSecretNamespacedName types.NamespacedName) {
223 log.Error(err, "Failed to retrieve private key secret for certificate request", "namespace", pkSecretNamespacedName.Namespace, "name", pkSecretNamespacedName.Name)
224 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonPending, "Failed to retrieve private key secret: %v", err)
227 func (controller *CertificateRequestController) handleErrorFailedToSignCertificate(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, err error) {
228 log.Error(err, "Failed to sign certificate request")
229 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonFailed, "Failed to sign certificate request: %v", err)
232 func (controller *CertificateRequestController) handleErrorFailedToDecodeCSR(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, err error) {
233 log.Error(err, "Failed to decode certificate sign request")
234 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonFailed, "Failed to decode CSR: %v", err)
237 func handleErrorResourceNotFound(log leveledlogger.Logger, err error) error {
238 if apierrors.IsNotFound(err) {
239 log.Error(err, "CertificateRequest resource not found")
242 log.Error(err, "Failed to retrieve CertificateRequest resource")