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main.go
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/*
* Copyright (c) 2023. NetApp, Inc. All Rights Reserved.
*/
package main
import (
"flag"
"fmt"
"k8s.io/client-go/kubernetes"
"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/client-go/dynamic"
_ "k8s.io/client-go/plugin/pkg/client/auth"
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
"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"
"github.com/NetApp-Polaris/astra-connector-operator/app/conf"
astrav1 "github.com/NetApp-Polaris/astra-connector-operator/details/operator-sdk/api/v1"
"github.com/NetApp-Polaris/astra-connector-operator/details/operator-sdk/controllers"
//+kubebuilder:scaffold:imports
)
var (
scheme = runtime.NewScheme()
setupLog = ctrl.Log.WithName("astra-connector-operator")
)
func init() {
utilruntime.Must(clientgoscheme.AddToScheme(scheme))
utilruntime.Must(astrav1.AddToScheme(scheme))
utilruntime.Must(apiextensionsv1.AddToScheme(scheme))
//+kubebuilder:scaffold:scheme
}
func main() {
host := conf.Config.Host()
metricsAddr := fmt.Sprintf("%v:%v", host, conf.Config.MetricsPort()) // :8080
probeAddr := fmt.Sprintf("%v:%v", host, conf.Config.HealthProbePort()) // :8081
var enableLeaderElection bool
flag.StringVar(&metricsAddr, "metrics-bind-address", metricsAddr, "The address the metric endpoint binds to.")
flag.StringVar(&probeAddr, "health-probe-bind-address", probeAddr, "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)))
conf.Config.LogCurrentConfig(setupLog, "AstraConnector operator runtime configuration")
mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
Scheme: scheme,
MetricsBindAddress: metricsAddr,
Port: conf.Config.Port(), // :9443
HealthProbeBindAddress: probeAddr,
LeaderElection: enableLeaderElection,
LeaderElectionID: "c3ec164e.astraconnector.com",
Namespace: "",
})
if err != nil {
setupLog.Error(err, "unable to start manager")
os.Exit(1)
}
// Create the dynamic client
dynamicClient, err := dynamic.NewForConfig(ctrl.GetConfigOrDie())
if err != nil {
setupLog.Error(err, "unable to create dynamic client")
os.Exit(1)
}
// create config and clientset
config := mgr.GetConfig()
clientset, err := kubernetes.NewForConfig(config)
if err != nil {
setupLog.Error(err, "unable to create clientset")
os.Exit(1)
}
if err = (&controllers.AstraConnectorController{
Client: mgr.GetClient(),
Clientset: clientset,
Scheme: mgr.GetScheme(),
DynamicClient: dynamicClient,
}).SetupWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create controller", "controller", "AstraConnector")
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)
}
}