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main.go
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main.go
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/*
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"
"k8s.io/apimachinery/pkg/runtime"
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
capi "sigs.k8s.io/cluster-api/api/v1beta1"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/log/zap"
metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
"github.com/giantswarm/dns-operator-route53/controllers"
dnscache "github.com/giantswarm/dns-operator-route53/pkg/cloud/cache"
// +kubebuilder:scaffold:imports
)
var (
scheme = runtime.NewScheme()
setupLog = ctrl.Log.WithName("setup")
)
func init() {
_ = clientgoscheme.AddToScheme(scheme)
_ = capi.AddToScheme(scheme)
// +kubebuilder:scaffold:scheme
}
func main() {
var (
baseDomain string
enableLeaderElection bool
managementCluster string
metricsAddr string
staticBastionIP string
)
flag.BoolVar(&enableLeaderElection, "enable-leader-election", false,
"Enable leader election for controller manager. "+
"Enabling this will ensure there is only one active controller manager.")
flag.StringVar(&metricsAddr, "metrics-addr", ":8080", "The address the metric endpoint binds to.")
flag.StringVar(&baseDomain, "base-domain", "", "Domain for which to create the DNS entries, e.g. customer.gigantic.io.")
flag.StringVar(&managementCluster, "management-cluster", "", "Name of the management cluster.")
flag.StringVar(&staticBastionIP, "static-bastion-ip", "", "IP address of static bastion machine for all clusters.")
flag.Parse()
ctrl.SetLogger(zap.New(zap.UseDevMode(true)))
// Initialize the cache with a custom configuration
var err error
dnscache.DNSOperatorCache, err = dnscache.NewDNSOperatorCache()
if err != nil {
setupLog.Error(err, "unable to create the cache")
os.Exit(1)
}
mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
Scheme: scheme,
Metrics: metricsserver.Options{
BindAddress: metricsAddr,
},
LeaderElection: enableLeaderElection,
LeaderElectionID: "dns-operator-route53.giantswarm.io",
})
if err != nil {
setupLog.Error(err, "unable to start manager")
os.Exit(1)
}
if err = (&controllers.ClusterReconciler{
Client: mgr.GetClient(),
BaseDomain: baseDomain,
ManagementCluster: managementCluster,
StaticBastionIP: staticBastionIP,
}).SetupWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create controller", "controller", "Cluster")
os.Exit(1)
}
// +kubebuilder:scaffold:builder
setupLog.Info("starting manager")
if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
setupLog.Error(err, "problem running manager")
os.Exit(1)
}
}