/
main.go
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/
main.go
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// Copyright 2022-2023 FLUIDOS Project
//
// 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 (
"context"
"flag"
"os"
// Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.)
// to ensure that exec-entrypoint and run can make use of them.
"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"
"k8s.io/klog/v2"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/healthz"
"sigs.k8s.io/controller-runtime/pkg/log/zap"
"sigs.k8s.io/controller-runtime/pkg/manager"
advertisementv1alpha1 "github.com/fluidos-project/node/apis/advertisement/v1alpha1"
nodecorev1alpha1 "github.com/fluidos-project/node/apis/nodecore/v1alpha1"
reservationv1alpha1 "github.com/fluidos-project/node/apis/reservation/v1alpha1"
contractmanager "github.com/fluidos-project/node/pkg/rear-controller/contract-manager"
discoverymanager "github.com/fluidos-project/node/pkg/rear-controller/discovery-manager"
gateway "github.com/fluidos-project/node/pkg/rear-controller/gateway"
"github.com/fluidos-project/node/pkg/rear-controller/grpc"
"github.com/fluidos-project/node/pkg/utils/flags"
)
var (
scheme = runtime.NewScheme()
setupLog = ctrl.Log.WithName("setup")
)
func init() {
utilruntime.Must(clientgoscheme.AddToScheme(scheme))
utilruntime.Must(advertisementv1alpha1.AddToScheme(scheme))
utilruntime.Must(reservationv1alpha1.AddToScheme(scheme))
utilruntime.Must(nodecorev1alpha1.AddToScheme(scheme))
//+kubebuilder:scaffold:scheme
}
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.StringVar(&flags.GRPCPort, "grpc-port", "2710", "Port of the HTTP server")
flag.StringVar(&flags.HTTPPort, "http-port", "3004", "Port of the HTTP server")
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)))
mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
Scheme: scheme,
MetricsBindAddress: metricsAddr,
Port: 9443,
HealthProbeBindAddress: probeAddr,
LeaderElection: enableLeaderElection,
LeaderElectionID: "efa8b828.fluidos.eu",
})
if err != nil {
setupLog.Error(err, "unable to start manager")
os.Exit(1)
}
cache := mgr.GetCache()
// Index the TransactionID field of the Contract CRD
indexFuncTransaction := func(obj client.Object) []string {
contract := obj.(*reservationv1alpha1.Contract)
return []string{contract.Spec.TransactionID}
}
// Index the ClusterID field of the Contract CRD
indexFuncClusterID := func(obj client.Object) []string {
contract := obj.(*reservationv1alpha1.Contract)
return []string{contract.Spec.BuyerClusterID}
}
if err := cache.IndexField(context.Background(), &reservationv1alpha1.Contract{}, "spec.transactionID", indexFuncTransaction); err != nil {
setupLog.Error(err, "unable to create index for field", "field", "spec.transactionID")
os.Exit(1)
}
if err := cache.IndexField(context.Background(), &reservationv1alpha1.Contract{}, "spec.buyerClusterID", indexFuncClusterID); err != nil {
setupLog.Error(err, "unable to create index for field", "field", "spec.buyerClusterID")
os.Exit(1)
}
gw := gateway.NewGateway(mgr.GetClient())
grpcServer := grpc.NewGrpcServer(mgr.GetClient())
if err = (&discoverymanager.DiscoveryReconciler{
Client: mgr.GetClient(),
Scheme: mgr.GetScheme(),
Gateway: gw,
}).SetupWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create controller", "controller", "Discovery")
os.Exit(1)
}
if err = (&contractmanager.ReservationReconciler{
Client: mgr.GetClient(),
Scheme: mgr.GetScheme(),
Gateway: gw,
}).SetupWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create controller", "controller", "Reservation")
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)
}
// Periodically clear the transaction cache
if err := mgr.Add(manager.RunnableFunc(gw.CacheRefresher(flags.RefreshCacheInterval))); err != nil {
klog.Errorf("Unable to set up transaction cache refresher: %s", err)
os.Exit(1)
}
// Periodically check if Liqo is ready
if err := mgr.Add(manager.RunnableFunc(gw.LiqoChecker(flags.LiqoCheckInterval))); err != nil {
klog.Errorf("Unable to set up Liqo checker: %s", err)
os.Exit(1)
}
// Start the REAR Gateway HTTP server
if err := mgr.Add(manager.RunnableFunc(gw.Start)); err != nil {
klog.Errorf("Unable to set up Gateway HTTP server: %s", err)
os.Exit(1)
}
// Start the REAR GRPC server
if err := mgr.Add(manager.RunnableFunc(grpcServer.Start)); err != nil {
klog.Errorf("Unable to set up Gateway GRPC server: %s", err)
os.Exit(1)
}
//nolint:gocritic // This code is needed to register the webhook
// pcv := discoverymanager.NewPCValidator(mgr.GetClient())
// mgr.GetWebhookServer().Register("/validate/peeringcandidate", &webhook.Admission{Handler: pcv})
setupLog.Info("starting manager")
if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
setupLog.Error(err, "problem running manager")
os.Exit(1)
}
}