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main.go
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main.go
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/*
Copyright 2021 ICS-FORTH.
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"
"github.com/carv-ics-forth/frisbee/controllers/call"
"github.com/carv-ics-forth/frisbee/controllers/cascade"
"github.com/carv-ics-forth/frisbee/controllers/testplan"
"github.com/pkg/errors"
"github.com/carv-ics-forth/frisbee/controllers/chaos"
"github.com/carv-ics-forth/frisbee/controllers/cluster"
"github.com/carv-ics-forth/frisbee/controllers/service"
"github.com/carv-ics-forth/frisbee/controllers/template"
// 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/client-go/plugin/pkg/client/auth"
"k8s.io/apimachinery/pkg/runtime"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/healthz"
"sigs.k8s.io/controller-runtime/pkg/log/zap"
frisbeev1alpha1 "github.com/carv-ics-forth/frisbee/api/v1alpha1"
// +kubebuilder:scaffold:imports
)
var (
scheme = runtime.NewScheme()
setupLog = ctrl.Log.WithName("setup")
)
func init() {
utilruntime.Must(clientgoscheme.AddToScheme(scheme))
utilruntime.Must(frisbeev1alpha1.AddToScheme(scheme))
// +kubebuilder:scaffold:scheme
}
func main() {
var (
// namespace string
metricsAddr string
enableLeaderElection bool
probeAddr string
)
// flag.StringVar(&namespace, "namespace", "default", "Restricts the manager's cache to watch objects in this namespace ")
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)))
// GetConfigOrDie creates a *rest.Config for talking to a Kubernetes apiserver.
// If --kubeconfig is set, will use the kubeconfig file at that location.
// Otherwise, will assume running in cluster and use the cluster provided kubeconfig.
//
// Will log an error and exit if there is an error creating the rest.Config.
mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
Scheme: scheme,
// Namespace: namespace,
MetricsBindAddress: metricsAddr,
Host: "0.0.0.0",
Port: 9443,
HealthProbeBindAddress: probeAddr,
LeaderElection: enableLeaderElection,
LeaderElectionID: "233dac68.frisbee.io",
})
if err != nil {
setupLog.Error(err, "unable to start manager")
os.Exit(1)
}
ctx := ctrl.SetupSignalHandler()
// Add controllers
if err := template.NewController(mgr, setupLog); err != nil {
utilruntime.HandleError(errors.Wrapf(err, "unable to create Templates controller"))
os.Exit(1)
}
if err := service.NewController(mgr, setupLog); err != nil {
utilruntime.HandleError(errors.Wrapf(err, "unable to create Service controller"))
os.Exit(1)
}
if err := cluster.NewController(mgr, setupLog); err != nil {
utilruntime.HandleError(errors.Wrapf(err, "unable to create Cluster controller"))
os.Exit(1)
}
if err := chaos.NewController(mgr, setupLog); err != nil {
utilruntime.HandleError(errors.Wrapf(err, "unable to create Chaos controller"))
os.Exit(1)
}
if err := cascade.NewController(mgr, setupLog); err != nil {
utilruntime.HandleError(errors.Wrapf(err, "unable to create Cascade controller"))
os.Exit(1)
}
if err := call.NewController(mgr, setupLog); err != nil {
utilruntime.HandleError(errors.Wrapf(err, "unable to create Call controller"))
os.Exit(1)
}
if err := testplan.NewController(ctx, mgr, setupLog); err != nil {
utilruntime.HandleError(errors.Wrapf(err, "unable to create TestPlan controller"))
os.Exit(1)
}
/*
Our existing call to SetupWebhookWithManager registers our conversion webhooks with the manager, too.
*/
if os.Getenv("ENABLE_WEBHOOKS") == "true" {
if err = (&frisbeev1alpha1.Template{}).SetupWebhookWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create webhook", "webhook", "Template")
os.Exit(1)
}
if err = (&frisbeev1alpha1.Service{}).SetupWebhookWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create webhook", "webhook", "Service")
os.Exit(1)
}
if err = (&frisbeev1alpha1.Cluster{}).SetupWebhookWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create webhook", "webhook", "Cluster")
os.Exit(1)
}
if err = (&frisbeev1alpha1.Chaos{}).SetupWebhookWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create webhook", "webhook", "Chaos")
os.Exit(1)
}
/*
TODO: add webhooks for cascade, stop
*/
if err = (&frisbeev1alpha1.TestPlan{}).SetupWebhookWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create webhook", "webhook", "TestPlan")
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)
}
/*
// init webserver to get the pprof webserver
go func() {
err := http.ListenAndServe("localhost:6060", nil)
if err != nil {
runtimeutil.HandleError(errors.Wrapf(err, "unable to start profiling server"))
}
setupLog.Info("Profiler started", "addr", "localhost:6060")
}()
*/
setupLog.Info("starting manager")
if err := mgr.Start(ctx); err != nil {
setupLog.Error(err, "problem running manager")
os.Exit(1)
}
}