2 * ============LICENSE_START=======================================================
3 * oom-certservice-k8s-external-provider
4 * ================================================================================
5 * Copyright 2019 The cert-manager authors.
6 * Modifications copyright (C) 2020 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 provisioners "onap.org/oom-certservice/k8s-external-provider/src/cmpv2provisioner"
44 "onap.org/oom-certservice/k8s-external-provider/src/leveledlogger"
45 x509utils "onap.org/oom-certservice/k8s-external-provider/src/x509"
49 privateKeySecretNameAnnotation = "cert-manager.io/private-key-secret-name"
50 privateKeySecretKey = "tls.key"
53 // CertificateRequestController reconciles a CMPv2Issuer object.
54 type CertificateRequestController struct {
56 Recorder record.EventRecorder
57 Log leveledlogger.Logger
60 // Reconcile will read and validate a CMPv2Issuer resource associated to the
61 // CertificateRequest resource, and it will sign the CertificateRequest with the
62 // provisioner in the CMPv2Issuer.
63 func (controller *CertificateRequestController) Reconcile(k8sRequest ctrl.Request) (ctrl.Result, error) {
64 ctx := context.Background()
65 log := leveledlogger.GetLoggerWithValues("certificate-request-controller", k8sRequest.NamespacedName)
67 // 1. Fetch the CertificateRequest resource being reconciled.
68 certificateRequest := new(cmapi.CertificateRequest)
69 certUpdater := updater.NewCertificateRequestUpdater(controller.Client, controller.Recorder, certificateRequest, ctx, log)
71 log.Info("Registered new certificate sign request: ", "cert-name", certificateRequest.Name)
72 if err := controller.Client.Get(ctx, k8sRequest.NamespacedName, certificateRequest); err != nil {
73 err = handleErrorResourceNotFound(log, err)
74 return ctrl.Result{}, err
77 // 2. Check if CertificateRequest is meant for CMPv2Issuer (if not ignore)
78 if !isCMPv2CertificateRequest(certificateRequest) {
79 log.Info("Certificate request is not meant for CMPv2Issuer (ignoring)",
80 "group", certificateRequest.Spec.IssuerRef.Group,
81 "kind", certificateRequest.Spec.IssuerRef.Kind)
82 return ctrl.Result{}, nil
85 // 3. If the certificate data is already set then we skip this request as it
86 // has already been completed in the past.
87 if len(certificateRequest.Status.Certificate) > 0 {
88 log.Info("Existing certificate data found in status, skipping already completed CertificateRequest")
89 return ctrl.Result{}, nil
92 // 4. Fetch the CMPv2Issuer resource
93 issuer := cmpv2api.CMPv2Issuer{}
94 issuerNamespaceName := types.NamespacedName{
95 Namespace: k8sRequest.Namespace,
96 Name: certificateRequest.Spec.IssuerRef.Name,
98 if err := controller.Client.Get(ctx, issuerNamespaceName, &issuer); err != nil {
99 controller.handleErrorGettingCMPv2Issuer(certUpdater, log, err, certificateRequest, issuerNamespaceName, k8sRequest)
100 return ctrl.Result{}, client.IgnoreNotFound(err)
103 // 5. Check if CMPv2Issuer is ready to sing certificates
104 if !isCMPv2IssuerReady(issuer) {
105 err := controller.handleErrorCMPv2IssuerIsNotReady(certUpdater, log, issuerNamespaceName, certificateRequest, k8sRequest)
106 return ctrl.Result{}, err
109 // 6. Load the provisioner that will sign the CertificateRequest
110 provisioner, ok := provisioners.Load(issuerNamespaceName)
112 err := controller.handleErrorCouldNotLoadCMPv2Provisioner(certUpdater, log, issuerNamespaceName)
113 return ctrl.Result{}, client.IgnoreNotFound(err)
116 // 7. Get private key matching CertificateRequest
117 privateKeySecretName := certificateRequest.ObjectMeta.Annotations[privateKeySecretNameAnnotation]
118 privateKeySecretNamespaceName := types.NamespacedName{
119 Namespace: k8sRequest.Namespace,
120 Name: privateKeySecretName,
122 var privateKeySecret core.Secret
123 if err := controller.Client.Get(ctx, privateKeySecretNamespaceName, &privateKeySecret); err != nil {
124 controller.handleErrorGettingPrivateKey(certUpdater, log, err, privateKeySecretNamespaceName)
125 return ctrl.Result{}, err
127 privateKeyBytes := privateKeySecret.Data[privateKeySecretKey]
130 log.Info("Decoding CSR...")
131 csr, err := x509utils.DecodeCSR(certificateRequest.Spec.Request)
133 controller.handleErrorFailedToDecodeCSR(certUpdater, log, err)
134 return ctrl.Result{}, err
137 // 9. Log Certificate Request properties not supported or overridden by CertService API
138 logger.LogCertRequestProperties(leveledlogger.GetLoggerWithName("CSR details:"), certificateRequest, csr)
140 // 10. Sign CertificateRequest
141 signedPEM, trustedCAs, err := provisioner.Sign(ctx, certificateRequest, privateKeyBytes)
143 controller.handleErrorFailedToSignCertificate(certUpdater, log, err)
144 return ctrl.Result{}, nil
147 // 11. Store signed certificates in CertificateRequest
148 certificateRequest.Status.Certificate = signedPEM
149 certificateRequest.Status.CA = trustedCAs
150 if err := certUpdater.UpdateCertificateRequestWithSignedCertificates(); err != nil {
151 return ctrl.Result{}, err
154 return ctrl.Result{}, nil
157 func (controller *CertificateRequestController) SetupWithManager(manager ctrl.Manager) error {
158 return ctrl.NewControllerManagedBy(manager).
159 For(&cmapi.CertificateRequest{}).
163 func isCMPv2IssuerReady(issuer cmpv2api.CMPv2Issuer) bool {
164 condition := cmpv2api.CMPv2IssuerCondition{Type: cmpv2api.ConditionReady, Status: cmpv2api.ConditionTrue}
165 return hasCondition(issuer, condition)
168 func hasCondition(issuer cmpv2api.CMPv2Issuer, condition cmpv2api.CMPv2IssuerCondition) bool {
169 existingConditions := issuer.Status.Conditions
170 for _, cond := range existingConditions {
171 if condition.Type == cond.Type && condition.Status == cond.Status {
178 func isCMPv2CertificateRequest(certificateRequest *cmapi.CertificateRequest) bool {
179 return certificateRequest.Spec.IssuerRef.Group != "" &&
180 certificateRequest.Spec.IssuerRef.Group == cmpv2api.GroupVersion.Group &&
181 certificateRequest.Spec.IssuerRef.Kind == cmpv2api.CMPv2IssuerKind
187 func (controller *CertificateRequestController) handleErrorCouldNotLoadCMPv2Provisioner(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, issuerNamespaceName types.NamespacedName) error {
188 err := fmt.Errorf("provisioner %s not found", issuerNamespaceName)
189 log.Error(err, "Failed to load CMPv2 Provisioner resource")
190 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonPending, "Failed to load provisioner for CMPv2Issuer resource %s", issuerNamespaceName)
194 func (controller *CertificateRequestController) handleErrorCMPv2IssuerIsNotReady(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, issuerNamespaceName types.NamespacedName, certificateRequest *cmapi.CertificateRequest, req ctrl.Request) error {
195 err := fmt.Errorf("resource %s is not ready", issuerNamespaceName)
196 log.Error(err, "CMPv2Issuer not ready", "namespace", req.Namespace, "name", certificateRequest.Spec.IssuerRef.Name)
197 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonPending, "CMPv2Issuer resource %s is not Ready", issuerNamespaceName)
201 func (controller *CertificateRequestController) handleErrorGettingCMPv2Issuer(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, err error, certificateRequest *cmapi.CertificateRequest, issuerNamespaceName types.NamespacedName, req ctrl.Request) {
202 log.Error(err, "Failed to retrieve CMPv2Issuer resource", "namespace", req.Namespace, "name", certificateRequest.Spec.IssuerRef.Name)
203 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonPending, "Failed to retrieve CMPv2Issuer resource %s: %v", issuerNamespaceName, err)
206 func (controller *CertificateRequestController) handleErrorGettingPrivateKey(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, err error, pkSecretNamespacedName types.NamespacedName) {
207 log.Error(err, "Failed to retrieve private key secret for certificate request", "namespace", pkSecretNamespacedName.Namespace, "name", pkSecretNamespacedName.Name)
208 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonPending, "Failed to retrieve private key secret: %v", err)
211 func (controller *CertificateRequestController) handleErrorFailedToSignCertificate(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, err error) {
212 log.Error(err, "Failed to sign certificate request")
213 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonFailed, "Failed to sign certificate request: %v", err)
216 func (controller *CertificateRequestController) handleErrorFailedToDecodeCSR(updater *updater.CertificateRequestStatusUpdater, log leveledlogger.Logger, err error) {
217 log.Error(err, "Failed to decode certificate sign request")
218 _ = updater.UpdateStatusWithEventTypeWarning(cmapi.CertificateRequestReasonFailed, "Failed to decode CSR: %v", err)
221 func handleErrorResourceNotFound(log leveledlogger.Logger, err error) error {
222 if apierrors.IsNotFound(err) {
223 log.Error(err, "CertificateRequest resource not found")
226 log.Error(err, "Failed to retrieve CertificateRequest resource")