135 lines
4.7 KiB
Go
135 lines
4.7 KiB
Go
/*
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Copyright 2019 The Jetstack cert-manager contributors.
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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 certificates
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import (
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"context"
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k8sErrors "k8s.io/apimachinery/pkg/api/errors"
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corelisters "k8s.io/client-go/listers/core/v1"
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"k8s.io/client-go/tools/cache"
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"k8s.io/utils/clock"
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"github.com/jetstack/cert-manager/pkg/apis/certmanager/v1alpha1"
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cmlisters "github.com/jetstack/cert-manager/pkg/client/listers/certmanager/v1alpha1"
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controllerpkg "github.com/jetstack/cert-manager/pkg/controller"
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"github.com/jetstack/cert-manager/pkg/issuer"
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logf "github.com/jetstack/cert-manager/pkg/logs"
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"github.com/jetstack/cert-manager/pkg/metrics"
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"github.com/jetstack/cert-manager/pkg/scheduler"
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)
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type Controller struct {
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*controllerpkg.BaseController
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helper issuer.Helper
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issuerFactory issuer.IssuerFactory
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issuerLister cmlisters.IssuerLister
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clusterIssuerLister cmlisters.ClusterIssuerLister
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certificateLister cmlisters.CertificateLister
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secretLister corelisters.SecretLister
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scheduledWorkQueue scheduler.ScheduledWorkQueue
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metrics *metrics.Metrics
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// used for testing
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clock clock.Clock
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// localTemporarySigner signs a certificate that is stored temporarily
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localTemporarySigner func(crt *v1alpha1.Certificate, pk []byte) ([]byte, error)
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}
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// New returns a new Certificates controller. It sets up the informer handler
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// functions for all the types it watches.
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func New(ctx *controllerpkg.Context) *Controller {
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ctrl := &Controller{}
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bctrl := controllerpkg.New(ctx, ControllerName, ctrl.processNextWorkItem)
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certificateInformer := ctx.SharedInformerFactory.Certmanager().V1alpha1().Certificates()
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bctrl.AddQueuing(controllerpkg.DefaultItemBasedRateLimiter(), "certificates", certificateInformer.Informer())
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ctrl.certificateLister = certificateInformer.Lister()
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// Create a scheduled work queue that calls the ctrl.queue.Add method for
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// each object in the queue. This is used to schedule re-checks of
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// Certificate resources when they get near to expiry
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ctrl.scheduledWorkQueue = scheduler.NewScheduledWorkQueue(bctrl.Queue.AddRateLimited)
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issuerInformer := ctx.SharedInformerFactory.Certmanager().V1alpha1().Issuers()
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bctrl.AddHandled(issuerInformer.Informer(), &controllerpkg.BlockingEventHandler{WorkFunc: ctrl.handleGenericIssuer})
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ctrl.issuerLister = issuerInformer.Lister()
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// if scoped to a single namespace
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if ctx.Namespace == "" {
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clusterIssuerInformer := ctx.SharedInformerFactory.Certmanager().V1alpha1().ClusterIssuers()
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bctrl.AddHandled(clusterIssuerInformer.Informer(), &controllerpkg.BlockingEventHandler{WorkFunc: ctrl.handleGenericIssuer})
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ctrl.clusterIssuerLister = clusterIssuerInformer.Lister()
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}
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secretsInformer := ctx.KubeSharedInformerFactory.Core().V1().Secrets()
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bctrl.AddHandled(secretsInformer.Informer(), &controllerpkg.BlockingEventHandler{WorkFunc: ctrl.handleSecretResource})
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ctrl.secretLister = secretsInformer.Lister()
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ordersInformer := ctx.SharedInformerFactory.Certmanager().V1alpha1().Orders()
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bctrl.AddHandled(ordersInformer.Informer(), &controllerpkg.BlockingEventHandler{WorkFunc: ctrl.handleOwnedResource})
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ctrl.BaseController = bctrl
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ctrl.helper = issuer.NewHelper(ctrl.issuerLister, ctrl.clusterIssuerLister)
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ctrl.metrics = metrics.Default
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ctrl.helper = issuer.NewHelper(ctrl.issuerLister, ctrl.clusterIssuerLister)
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ctrl.issuerFactory = issuer.NewIssuerFactory(ctx)
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ctrl.clock = clock.RealClock{}
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ctrl.localTemporarySigner = generateLocallySignedTemporaryCertificate
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return ctrl
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}
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func (c *Controller) processNextWorkItem(ctx context.Context, key string) error {
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log := logf.FromContext(ctx)
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namespace, name, err := cache.SplitMetaNamespaceKey(key)
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if err != nil {
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log.Error(err, "invalid resource key")
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return nil
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}
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crt, err := c.certificateLister.Certificates(namespace).Get(name)
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if err != nil {
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if k8sErrors.IsNotFound(err) {
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c.scheduledWorkQueue.Forget(key)
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log.Error(err, "certificate in work queue no longer exists")
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return nil
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}
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return err
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}
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ctx = logf.NewContext(ctx, logf.WithResource(log, crt))
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return c.Sync(ctx, crt)
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}
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var keyFunc = controllerpkg.KeyFunc
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const (
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ControllerName = "certificates"
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)
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func init() {
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controllerpkg.Register(ControllerName, func(ctx *controllerpkg.Context) (controllerpkg.Interface, error) {
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return New(ctx).Run, nil
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})
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}
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