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/*
* ============LICENSE_START=======================================================
* oom-certservice-k8s-external-provider
* ================================================================================
* Copyright (c) 2019 Smallstep Labs, Inc.
* Modifications copyright (C) 2020 Nokia. All rights reserved.
* ================================================================================
* This source code was copied from the following git repository:
* https://github.com/smallstep/step-issuer
* The source code was modified for usage in the ONAP 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.
* ============LICENSE_END=========================================================
*/
package main
import (
"flag"
"fmt"
"os"
certmanager "github.com/jetstack/cert-manager/pkg/apis/certmanager/v1"
"k8s.io/apimachinery/pkg/runtime"
clientgoscheme "k8s.io/client-go/kubernetes/scheme"
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
"k8s.io/utils/clock"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/log/zap"
"sigs.k8s.io/controller-runtime/pkg/manager"
app "onap.org/oom-certservice/k8s-external-provider/src"
certserviceapi "onap.org/oom-certservice/k8s-external-provider/src/cmpv2api"
controllers "onap.org/oom-certservice/k8s-external-provider/src/cmpv2controller"
)
var (
scheme = runtime.NewScheme()
setupLog = ctrl.Log.WithName("setup")
)
func init() {
_ = clientgoscheme.AddToScheme(scheme)
_ = certmanager.AddToScheme(scheme)
_ = certserviceapi.AddToScheme(scheme)
ctrl.SetLogger(zap.New(zap.UseDevMode(true)))
}
func main() {
printVersionInfo()
metricsAddr, enableLeaderElection := parseInputArguments()
manager := createControllerManager(metricsAddr, enableLeaderElection)
registerCMPv2IssuerController(manager)
registerCertificateRequestController(manager)
startControllerManager(manager)
setupLog.Info("Application is up and running.")
}
func printVersionInfo() {
fmt.Println()
fmt.Println(" *** CMPv2 Provider v1.0.0 ***")
fmt.Println()
}
func parseInputArguments() (string, bool) {
setupLog.Info("Parsing input arguments...")
var metricsAddr string
var enableLeaderElection bool
flag.StringVar(&metricsAddr, "metrics-addr", ":8080", "The address the metric endpoint binds to.")
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.Parse()
return metricsAddr, enableLeaderElection
}
func startControllerManager(manager manager.Manager) {
setupLog.Info("Starting CMPv2 controller manager...")
if err := manager.Start(ctrl.SetupSignalHandler()); err != nil {
exit(app.EXCEPTION_WHILE_RUNNING_CONTROLLER_MANAGER, err)
}
}
func createControllerManager(metricsAddr string, enableLeaderElection bool) manager.Manager {
setupLog.Info("Creating CMPv2 controller manager...")
manager, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
Scheme: scheme,
MetricsBindAddress: metricsAddr,
LeaderElection: enableLeaderElection,
})
if err != nil {
exit(app.FAILED_TO_CREATE_CONTROLLER_MANAGER, err)
}
return manager
}
func registerCMPv2IssuerController(manager manager.Manager) {
setupLog.Info("Registering CMPv2IssuerController...")
err := (&controllers.CMPv2IssuerController{
Client: manager.GetClient(),
Log: ctrl.Log.WithName("controllers").WithName("CMPv2Issuer"),
Clock: clock.RealClock{},
Recorder: manager.GetEventRecorderFor("cmpv2-issuer-controller"),
}).SetupWithManager(manager)
if err != nil {
exit(app.FAILED_TO_REGISTER_CMPv2_ISSUER_CONTROLLER, err)
}
}
func registerCertificateRequestController(manager manager.Manager) {
setupLog.Info("Registering CertificateRequestController...")
err := (&controllers.CertificateRequestController{
Client: manager.GetClient(),
Log: ctrl.Log.WithName("controllers").WithName("CertificateRequest"),
Recorder: manager.GetEventRecorderFor("certificate-requests-controller"),
}).SetupWithManager(manager)
if err != nil {
exit(app.FAILED_TO_REGISTER_CERT_REQUEST_CONTROLLER, err)
}
}
func exit(exitCode app.ExitCode, err error) {
setupLog.Error(err, exitCode.Message)
os.Exit(exitCode.Code)
}
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