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