/* Copyright 2023 The KEDA 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 main import ( "flag" "os" kedav1alpha1 "github.com/kedacore/keda/v2/apis/keda/v1alpha1" "k8s.io/apimachinery/pkg/runtime" utilruntime "k8s.io/apimachinery/pkg/util/runtime" clientgoscheme "k8s.io/client-go/kubernetes/scheme" _ "k8s.io/client-go/plugin/pkg/client/auth" ctrl "sigs.k8s.io/controller-runtime" "sigs.k8s.io/controller-runtime/pkg/cache" "sigs.k8s.io/controller-runtime/pkg/healthz" "sigs.k8s.io/controller-runtime/pkg/log/zap" "sigs.k8s.io/controller-runtime/pkg/metrics/server" httpv1alpha1 "github.com/kedacore/http-add-on/operator/apis/http/v1alpha1" httpcontrollers "github.com/kedacore/http-add-on/operator/controllers/http" "github.com/kedacore/http-add-on/operator/controllers/http/config" // +kubebuilder:scaffold:imports ) var ( scheme = runtime.NewScheme() setupLog = ctrl.Log.WithName("setup") ) func init() { utilruntime.Must(clientgoscheme.AddToScheme(scheme)) utilruntime.Must(httpv1alpha1.AddToScheme(scheme)) utilruntime.Must(kedav1alpha1.AddToScheme(scheme)) // +kubebuilder:scaffold:scheme } // +kubebuilder:rbac:groups="",namespace=keda,resources=events,verbs=create;patch // +kubebuilder:rbac:groups=coordination.k8s.io,namespace=keda,resources=leases,verbs=get;list;watch;create;update;patch;delete func main() { var metricsAddr string var enableLeaderElection bool var probeAddr string flag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "The address the metric endpoint binds to.") flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.") flag.BoolVar(&enableLeaderElection, "leader-elect", false, "Enable leader election for controller manager. "+ "Enabling this will ensure there is only one active controller manager.") opts := zap.Options{ Development: true, } opts.BindFlags(flag.CommandLine) flag.Parse() ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts))) externalScalerCfg, err := config.NewExternalScalerFromEnv() if err != nil { setupLog.Error(err, "unable to get external scaler configuration") os.Exit(1) } baseConfig, err := config.NewBaseFromEnv() if err != nil { setupLog.Error( err, "unable to get base configuration", ) os.Exit(1) } var namespaces map[string]cache.Config if baseConfig.WatchNamespace != "" { namespaces = map[string]cache.Config{ baseConfig.WatchNamespace: {}, } } mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{ Scheme: scheme, Metrics: server.Options{ BindAddress: metricsAddr, }, HealthProbeBindAddress: probeAddr, LeaderElection: enableLeaderElection, LeaderElectionID: "http-add-on.keda.sh", LeaderElectionReleaseOnCancel: true, Cache: cache.Options{ DefaultNamespaces: namespaces, }, }) if err != nil { setupLog.Error(err, "unable to start manager") os.Exit(1) } if err = (&httpcontrollers.HTTPScaledObjectReconciler{ Client: mgr.GetClient(), Scheme: mgr.GetScheme(), ExternalScalerConfig: *externalScalerCfg, BaseConfig: *baseConfig, }).SetupWithManager(mgr); err != nil { setupLog.Error(err, "unable to create controller", "controller", "HTTPScaledObject") os.Exit(1) } //+kubebuilder:scaffold:builder if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil { setupLog.Error(err, "unable to set up health check") os.Exit(1) } if err := mgr.AddReadyzCheck("readyz", healthz.Ping); err != nil { setupLog.Error(err, "unable to set up ready check") os.Exit(1) } setupLog.Info("starting manager") if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil { setupLog.Error(err, "problem running manager") os.Exit(1) } }