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sink_controller.go
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/
sink_controller.go
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 controllers
import (
"context"
"github.com/streamnative/function-mesh/controllers/spec"
"github.com/go-logr/logr"
computev1alpha1 "github.com/streamnative/function-mesh/api/v1alpha1"
appsv1 "k8s.io/api/apps/v1"
autov2beta2 "k8s.io/api/autoscaling/v2beta2"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
)
// SinkReconciler reconciles a Topic object
type SinkReconciler struct {
client.Client
Log logr.Logger
Scheme *runtime.Scheme
}
// +kubebuilder:rbac:groups=compute.functionmesh.io,resources=sinks,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=compute.functionmesh.io,resources=sinks/status,verbs=get;update;patch
// +kubebuilder:rbac:groups=apps,resources=statefulsets,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=core,resources=services,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=autoscaling,resources=horizontalpodautoscalers,verbs=get;list;watch;create;update;patch;delete
func (r *SinkReconciler) Reconcile(req ctrl.Request) (ctrl.Result, error) {
ctx := context.Background()
_ = r.Log.WithValues("sink", req.NamespacedName)
// your logic here
sink := &computev1alpha1.Sink{}
err := r.Get(ctx, req.NamespacedName, sink)
if err != nil {
if errors.IsNotFound(err) {
return ctrl.Result{}, nil
}
r.Log.Error(err, "failed to get sink")
return reconcile.Result{}, err
}
if !spec.IsManaged(sink) {
r.Log.Info("Skipping sink not managed by the controller", "Name", req.String())
return reconcile.Result{}, nil
}
if sink.Status.Conditions == nil {
sink.Status.Conditions = make(map[computev1alpha1.Component]computev1alpha1.ResourceCondition)
}
err = r.ObserveSinkStatefulSet(ctx, req, sink)
if err != nil {
return reconcile.Result{}, err
}
err = r.ObserveSinkService(ctx, req, sink)
if err != nil {
return reconcile.Result{}, err
}
err = r.ObserveSinkHPA(ctx, req, sink)
if err != nil {
return reconcile.Result{}, err
}
err = r.Status().Update(ctx, sink)
if err != nil {
r.Log.Error(err, "failed to update sink status")
return ctrl.Result{}, err
}
err = r.ApplySinkStatefulSet(ctx, sink)
if err != nil {
return reconcile.Result{}, err
}
err = r.ApplySinkService(ctx, req, sink)
if err != nil {
return reconcile.Result{}, err
}
err = r.ApplySinkHPA(ctx, req, sink)
if err != nil {
return reconcile.Result{}, err
}
return ctrl.Result{}, nil
}
func (r *SinkReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
For(&computev1alpha1.Sink{}).
Owns(&appsv1.StatefulSet{}).
Owns(&corev1.Service{}).
Owns(&autov2beta2.HorizontalPodAutoscaler{}).
Complete(r)
}