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main.go
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main.go
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/*
Copyright 2020 DevSpace Technologies Inc.
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"
"github.com/kiosk-sh/kiosk/pkg/apis"
"github.com/kiosk-sh/kiosk/pkg/apis/tenancy"
tenancyv1alpha1 "github.com/kiosk-sh/kiosk/pkg/apis/tenancy/v1alpha1"
"github.com/kiosk-sh/kiosk/pkg/apiserver"
_ "github.com/kiosk-sh/kiosk/pkg/apiserver/registry"
"github.com/kiosk-sh/kiosk/pkg/manager/blockingcacheclient"
"github.com/kiosk-sh/kiosk/pkg/openapi"
"github.com/kiosk-sh/kiosk/pkg/store/apiservice"
"github.com/kiosk-sh/kiosk/pkg/store/crd"
"github.com/kiosk-sh/kiosk/pkg/store/validatingwebhookconfiguration"
"github.com/kiosk-sh/kiosk/pkg/util/certhelper"
"github.com/kiosk-sh/kiosk/pkg/util/log"
apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
apiextensionsv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
"k8s.io/client-go/rest"
"k8s.io/klog"
apiregistrationv1 "k8s.io/kube-aggregator/pkg/apis/apiregistration/v1"
"os"
client2 "sigs.k8s.io/controller-runtime/pkg/client"
configv1alpha1 "github.com/kiosk-sh/kiosk/pkg/apis/config/v1alpha1"
"github.com/kiosk-sh/kiosk/pkg/manager/controllers"
"github.com/kiosk-sh/kiosk/pkg/manager/quota"
"github.com/kiosk-sh/kiosk/pkg/manager/webhooks"
"k8s.io/apimachinery/pkg/runtime"
genericfeatures "k8s.io/apiserver/pkg/features"
featureutil "k8s.io/apiserver/pkg/util/feature"
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
ctrl "sigs.k8s.io/controller-runtime"
// +kubebuilder:scaffold:imports
// Make sure dep tools picks up these dependencies
_ "github.com/go-openapi/loads"
_ "k8s.io/apimachinery/pkg/apis/meta/v1"
_ "k8s.io/client-go/plugin/pkg/client/auth" // Enable cloud provider auth
)
var (
scheme = runtime.NewScheme()
setupLog = ctrl.Log.WithName("setup")
)
func init() {
_ = clientgoscheme.AddToScheme(scheme)
// API extensions are not in the above scheme set,
// and must thus be added separately.
_ = apiextensionsv1beta1.AddToScheme(scheme)
_ = apiextensionsv1.AddToScheme(scheme)
_ = apiregistrationv1.AddToScheme(scheme)
_ = tenancy.AddToScheme(scheme)
_ = tenancyv1alpha1.AddToScheme(scheme)
_ = configv1alpha1.AddToScheme(scheme)
// +kubebuilder:scaffold:scheme
}
func main() {
// set global logger
if os.Getenv("DEBUG") == "true" {
ctrl.SetLogger(log.NewLog(0))
} else {
ctrl.SetLogger(log.NewLog(2))
}
// Make sure the certificates are there
err := certhelper.WriteCertificates()
if err != nil {
setupLog.Error(err, "unable to generate certificates")
os.Exit(1)
}
// retrieve in cluster config
config := ctrl.GetConfigOrDie()
// set qps, burst & timeout
config.QPS = 80
config.Burst = 100
config.Timeout = 0
// Make sure the needed crds are installed in the cluster
err = initialize(config)
if err != nil {
klog.Fatal(err)
}
// create the manager
mgr, err := ctrl.NewManager(config, ctrl.Options{
NewClient: blockingcacheclient.NewCacheClient,
Scheme: scheme,
MetricsBindAddress: ":8080",
LeaderElection: false,
Port: 9443,
})
if err != nil {
setupLog.Error(err, "unable to start manager")
os.Exit(1)
}
// Inject the client and scheme
injectClient(mgr.GetClient(), scheme)
// Add required indices
err = controllers.AddManagerIndices(mgr.GetCache())
if err != nil {
setupLog.Error(err, "unable to set manager indices")
os.Exit(1)
}
stopChan := ctrl.SetupSignalHandler()
ctrlCtx := controllers.NewControllerContext(mgr, stopChan)
// Register generic controllers
err = controllers.Register(mgr)
if err != nil {
setupLog.Error(err, "unable to register controller")
os.Exit(1)
}
// Register quota controller
err = quota.Register(ctrlCtx)
if err != nil {
setupLog.Error(err, "unable to register quota controller")
os.Exit(1)
}
// Register webhooks
err = webhooks.Register(ctrlCtx)
if err != nil {
setupLog.Error(err, "unable to register webhooks")
os.Exit(1)
}
// Start controller context
go ctrlCtx.Start()
// Start the local manager
go func() {
setupLog.Info("starting manager")
err = mgr.Start(stopChan)
if err != nil {
panic(err)
}
}()
// Make sure the manager is synced
mgr.GetCache().WaitForCacheSync(stopChan)
// Start the api server
go func() {
version := "v0"
if os.Getenv("SERVER_SIDE_APPLY_ENABLED") != "true" {
err := featureutil.DefaultMutableFeatureGate.Set(string(genericfeatures.ServerSideApply) + "=false")
if err != nil {
panic(err)
}
}
err = apiserver.StartApiServerWithOptions(&apiserver.StartOptions{
Apis: apis.GetAllApiBuilders(),
Openapidefs: openapi.GetOpenAPIDefinitions,
Title: "Api",
Version: version,
})
if err != nil {
panic(err)
}
}()
// setup validatingwebhookconfiguration
err = validatingwebhookconfiguration.EnsureValidatingWebhookConfiguration(context.Background(), mgr.GetClient())
if err != nil {
setupLog.Error(err, "unable to set up validating webhook configuration")
os.Exit(1)
}
// setup apiservice
err = apiservice.EnsureAPIService(context.Background(), mgr.GetClient())
if err != nil {
setupLog.Error(err, "unable to set up apiservice")
os.Exit(1)
}
// Wait till stopChan is closed
<-stopChan
}
func initialize(config *rest.Config) error {
klog.Info("Initialize...")
defer klog.Info("Done initializing...")
client, err := client2.New(config, client2.Options{Scheme: scheme})
if err != nil {
return err
}
klog.Info("Installing crds...")
builder := crd.NewBuilder(client)
_, err = builder.CreateCRDs(context.Background(), apis.TypeDefinitions...)
return err
}
func injectClient(client client2.Client, scheme *runtime.Scheme) {
tenancy.Client = client
tenancy.Scheme = scheme
}