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jobsink.go
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jobsink.go
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/*
Copyright 2024 The Knative Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package jobsink
import (
"context"
"fmt"
"go.uber.org/zap"
batchlisters "k8s.io/client-go/listers/batch/v1"
corev1listers "k8s.io/client-go/listers/core/v1"
"k8s.io/utils/ptr"
"knative.dev/pkg/apis"
duckv1 "knative.dev/pkg/apis/duck/v1"
"knative.dev/pkg/logging"
"knative.dev/pkg/network"
"knative.dev/pkg/reconciler"
"knative.dev/eventing/pkg/apis/feature"
sinks "knative.dev/eventing/pkg/apis/sinks/v1alpha1"
"knative.dev/eventing/pkg/auth"
eventingv1alpha1listers "knative.dev/eventing/pkg/client/listers/eventing/v1alpha1"
"knative.dev/eventing/pkg/eventingtls"
)
type Reconciler struct {
jobLister batchlisters.JobLister
secretLister corev1listers.SecretLister
eventPolicyLister eventingv1alpha1listers.EventPolicyLister
systemNamespace string
}
func (r *Reconciler) ReconcileKind(ctx context.Context, js *sinks.JobSink) reconciler.Event {
featureFlags := feature.FromContext(ctx)
r.reconcileJob(js)
if err := r.reconcileAddress(ctx, js); err != nil {
return fmt.Errorf("failed to reconcile address: %w", err)
}
err := auth.UpdateStatusWithEventPolicies(featureFlags, &js.Status.AppliedEventPoliciesStatus, &js.Status, r.eventPolicyLister, sinks.SchemeGroupVersion.WithKind("JobSink"), js.ObjectMeta)
if err != nil {
return fmt.Errorf("could not update JobSink status with EventPolicies: %v", err)
}
return nil
}
func (r *Reconciler) getCaCerts() (*string, error) {
// Getting the secret called "imc-dispatcher-tls" from system namespace
secret, err := r.secretLister.Secrets(r.systemNamespace).Get(eventingtls.JobSinkDispatcherServerTLSSecretName)
if err != nil {
return nil, fmt.Errorf("failed to get CA certs from %s/%s: %w", r.systemNamespace, eventingtls.JobSinkDispatcherServerTLSSecretName, err)
}
caCerts, ok := secret.Data[eventingtls.SecretCACert]
if !ok {
return nil, nil
}
return ptr.To(string(caCerts)), nil
}
func (r *Reconciler) reconcileAddress(ctx context.Context, js *sinks.JobSink) error {
featureFlags := feature.FromContext(ctx)
if featureFlags.IsPermissiveTransportEncryption() {
caCerts, err := r.getCaCerts()
if err != nil {
return err
}
httpAddress := r.httpAddress(js)
httpsAddress := r.httpsAddress(caCerts, js)
// Permissive mode:
// - status.address http address with host-based routing
// - status.addresses:
// - https address with path-based routing
// - http address with host-based routing
js.Status.Addresses = []duckv1.Addressable{httpsAddress, httpAddress}
js.Status.Address = &httpAddress
} else if featureFlags.IsStrictTransportEncryption() {
// Strict mode: (only https addresses)
// - status.address https address with path-based routing
// - status.addresses:
// - https address with path-based routing
caCerts, err := r.getCaCerts()
if err != nil {
return err
}
httpsAddress := r.httpsAddress(caCerts, js)
js.Status.Addresses = []duckv1.Addressable{httpsAddress}
js.Status.Address = &httpsAddress
} else {
httpAddress := r.httpAddress(js)
js.Status.Address = &httpAddress
}
if featureFlags.IsOIDCAuthentication() {
audience := auth.GetAudience(sinks.SchemeGroupVersion.WithKind("JobSink"), js.ObjectMeta)
logging.FromContext(ctx).Debugw("Setting the audience", zap.String("audience", audience))
js.Status.Address.Audience = &audience
for i := range js.Status.Addresses {
js.Status.Addresses[i].Audience = &audience
}
} else {
logging.FromContext(ctx).Debug("Clearing the imc audience as OIDC is not enabled")
js.Status.Address.Audience = nil
for i := range js.Status.Addresses {
js.Status.Addresses[i].Audience = nil
}
}
js.GetConditionSet().Manage(js.GetStatus()).MarkTrue(sinks.JobSinkConditionAddressable)
return nil
}
func (r *Reconciler) httpAddress(js *sinks.JobSink) duckv1.Addressable {
// http address uses host-based routing
httpAddress := duckv1.Addressable{
Name: ptr.To("http"),
URL: &apis.URL{
Scheme: "http",
Host: network.GetServiceHostname("job-sink", r.systemNamespace),
Path: fmt.Sprintf("/%s/%s", js.GetNamespace(), js.GetName()),
},
}
return httpAddress
}
func (r *Reconciler) httpsAddress(certs *string, js *sinks.JobSink) duckv1.Addressable {
addr := r.httpAddress(js)
addr.URL.Scheme = "https"
addr.CACerts = certs
return addr
}
func (r *Reconciler) reconcileJob(js *sinks.JobSink) {
if js.Spec.Job == nil {
return
}
js.SetJobStatusSelector()
}