[OOM-K8S-CERT-EXTERNAL-PROVIDER] Create mock implementation

This project is a GOlang implementation of an external provider for kubernetes cert-manager.
External provider will use OOM CertService as backend signing CA.
Mock implementation only logs intent of certificate signing.
In order to provide the ultimate implemenatation please extend file 'certservice-provisioner.go'.

Issue-ID: OOM-2559
Signed-off-by: Jan Malkiewicz <jan.malkiewicz@nokia.com>
Change-Id: Ib3de4ca4c54424042ddaa50507375815cc3da7f4

1 files changed, 94 insertions, 9 deletions

diff --git a/certServiceK8sExternalProvider/main.go b/certServiceK8sExternalProvider/main.go
index 77ede105..ed4e5b89 100644
--- a/certServiceK8sExternalProvider/main.go
+++ b/certServiceK8sExternalProvider/main.go
@@ -1,24 +1,109 @@
+/*
+ * ============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"
-	"github.com/levigross/grequests"
-	"log"
-	certservice_provisioner "onap.org/oom-certservice/k8s-external-provider/src/certservice-provisioner"
+	certmanager "github.com/jetstack/cert-manager/pkg/apis/certmanager/v1alpha2"
+	"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"
+	certserviceapi "onap.org/oom-certservice/k8s-external-provider/src/api"
+	controllers "onap.org/oom-certservice/k8s-external-provider/src/certservice-controller"
+	"os"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/log/zap"
+)
+
+var (
+	scheme   = runtime.NewScheme()
+	setupLog = ctrl.Log.WithName("setup")
 )
 
+func init() {
+	_ = clientgoscheme.AddToScheme(scheme)
+	_ = certmanager.AddToScheme(scheme)
+	_ = certserviceapi.AddToScheme(scheme)
+}
+
 func main() {
-	fmt.Println("   ***  Hello World Golang App  ***")
+	fmt.Println()
+	fmt.Println("                                        ***  Cert Service Provider v1.0.0  ***")
 	fmt.Println()
 
-	resp, err := grequests.Get("http://jenkins.onap.org/", nil)
+	setupLog.Info("Parsing 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()
 
+	ctrl.SetLogger(zap.New(zap.UseDevMode(true)))
+
+	setupLog.Info("Creating k8s Manager...")
+	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
+		Scheme:             scheme,
+		MetricsBindAddress: metricsAddr,
+		LeaderElection:     enableLeaderElection,
+	})
 	if err != nil {
-		log.Fatalln("Unable to make request: ", err)
+		setupLog.Error(err, "unable to start manager")
+		os.Exit(1)
+	}
+
+	setupLog.Info("Registering CertServiceIssuerReconciler...")
+	if err = (&controllers.CertServiceIssuerReconciler{
+		Client:   mgr.GetClient(),
+		Log:      ctrl.Log.WithName("controllers").WithName("CertServiceIssuer"),
+		Clock:    clock.RealClock{},
+		Recorder: mgr.GetEventRecorderFor("certservice-issuer-controller"),
+	}).SetupWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create controller", "controller", "CertServiceIssuer")
+		os.Exit(1)
 	}
 
-	fmt.Println("Checking if jenkins.onap.org is reachable:", resp.StatusCode)
+	setupLog.Info("Registering CertificateRequestReconciler...")
+	if err = (&controllers.CertificateRequestReconciler{
+		Client:   mgr.GetClient(),
+		Log:      ctrl.Log.WithName("controllers").WithName("CertificateRequest"),
+		Recorder: mgr.GetEventRecorderFor("certificaterequests-controller"),
+	}).SetupWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create controller", "controller", "CertificateRequest")
+		os.Exit(1)
+	}
+
+	setupLog.Info("Starting k8s manager...")
+	if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
+		setupLog.Error(err, "problem running manager")
+		os.Exit(1)
+	}
+	setupLog.Info("Application is up and running.")
 
-	fmt.Println("Signing certificate...")
-	certservice_provisioner.SignCertificate()
 }