Prepare k8s deployment

solves #92 (closed)

build/cd/deploy.go

@@ -3,23 +3,24 @@ package main
 import (
 	"code.fbi.h-da.de/cocsn/gosdn/nucleus"
 	"context"
+	log "github.com/sirupsen/logrus"
 	appv1 "k8s.io/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
+	netv1 "k8s.io/api/networking/v1beta1"
 	"k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/intstr"
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/tools/clientcmd"
-	"log"
 	"os"
 )
 
 func main() {
+	log.SetFormatter(&log.JSONFormatter{})
 	kubeconfig, err := clientcmd.BuildConfigFromFlags("https://api.ocp.fbi.h-da.de:6443", "")
 	if err != nil {
 		log.Fatal(err)
 	}
-	kubeconfig.Username = os.Getenv("K8S_DEPLOY_USER")
 	kubeconfig.BearerToken = os.Getenv("K8S_DEPLOY_TOKEN")
 	clientset, err := kubernetes.NewForConfig(kubeconfig)
 	if err != nil {
@@ -34,35 +35,28 @@ func main() {
 	default:
 		tag = os.Getenv("CI_COMMIT_SHA")
 	}
-	env := "gosdn-" + tag
-	service := createService(env)
-	config := createConfigMap(env)
-	deployment := createDeployment(env, tag)
+
 	switch os.Getenv("K8S_OP") {
 	case "create":
-		if err := create(clientset, service, config, deployment, env); err != nil {
-			log.Println(err)
+		if err := create(clientset, tag); err != nil {
+			log.Fatal(err)
 		}
 	case "delete":
-		if err := remove(clientset, env); err != nil {
-			log.Println(err)
-		}
-	case "update":
-		if err := update(clientset, service, env); err != nil {
-			log.Println(err)
-		}
-		if err := update(clientset, config, env); err != nil {
-			log.Println(err)
-		}
-		if err := update(clientset, deployment, env); err != nil {
-			log.Println(err)
+		if err := remove(clientset, tag); err != nil {
+			log.Fatal(err)
 		}
 	default:
 		log.Fatal("invalid option")
 	}
 }
 
-func create(clientset *kubernetes.Clientset, service *corev1.Service, config *corev1.ConfigMap, deployment *appv1.Deployment, env string) error {
+// nolint
+func create(clientset *kubernetes.Clientset, tag string) error {
+	env := "gosdn-" + tag
+	service := createService(env)
+	ingress := createIngress(env)
+	config := createConfigMap(env)
+	deployment := createDeployment(env, tag)
 	opts := metav1.CreateOptions{}
 	ctx := context.Background()
 	_, err := clientset.CoreV1().Services("cocsn").Create(ctx, service, opts)
@@ -70,35 +64,70 @@ func create(clientset *kubernetes.Clientset, service *corev1.Service, config *co
 		switch err.(type) {
 		case *errors.StatusError:
 			if err.(*errors.StatusError).ErrStatus.Code == 409 {
-				err = update(clientset, service, env)
+				if err := update(clientset, service, env); err != nil {
+					return err
+				}
+			} else {
+				log.Error(err)
 			}
 		default:
-			return err
+			log.Error(err)
 		}
+	} else {
+		log.Printf("service %v created", service.Name)
+	}
+	_, err = clientset.NetworkingV1beta1().Ingresses("cocsn").Create(ctx, ingress, opts)
+	if err != nil {
+		switch err.(type) {
+		case *errors.StatusError:
+			if err.(*errors.StatusError).ErrStatus.Code == 409 {
+				if err := update(clientset, ingress, env); err != nil {
+					log.Error(err)
+				}
+			} else {
+				log.Error(err)
+			}
+		default:
+			log.Error(err)
+		}
+	} else {
+		log.Printf("ingress %v created", ingress.Name)
 	}
 	_, err = clientset.CoreV1().ConfigMaps("cocsn").Create(ctx, config, opts)
 	if err != nil {
 		switch err.(type) {
 		case *errors.StatusError:
 			if err.(*errors.StatusError).ErrStatus.Code == 409 {
-				err = update(clientset, config, env)
+				if err := update(clientset, config, env); err != nil {
+					log.Error(err)
+				}
+			} else {
+				log.Error(err)
 			}
 		default:
-			return err
+			log.Error(err)
 		}
+	} else {
+		log.Printf("configMap %v created", config.Name)
 	}
 	_, err = clientset.AppsV1().Deployments("cocsn").Create(ctx, deployment, opts)
 	if err != nil {
 		switch err.(type) {
 		case *errors.StatusError:
 			if err.(*errors.StatusError).ErrStatus.Code == 409 {
-				err = update(clientset, deployment, env)
+				if err := update(clientset, deployment, env); err != nil {
+					log.Error(err)
+				}
+			} else {
+				log.Error(err)
 			}
 		default:
-			return err
+			log.Error(err)
 		}
+	} else {
+		log.Printf("deployment %v created", deployment.Name)
 	}
-	return err
+	return nil
 }
 
 func update(clientset *kubernetes.Clientset, resource metav1.Common, env string) error {
@@ -117,6 +146,19 @@ func update(clientset *kubernetes.Clientset, resource metav1.Common, env string)
 		if err != nil {
 			return err
 		}
+		log.Printf("service %v updated", service.Name)
+	case *netv1.Ingress:
+		ingress := resource.(*netv1.Ingress)
+		i, err := clientset.NetworkingV1beta1().Ingresses("cocsn").Get(ctx, env, getOpts)
+		if err != nil {
+			return err
+		}
+		i.DeepCopyInto(ingress)
+		_, err = clientset.NetworkingV1beta1().Ingresses("cocsn").Update(ctx, ingress, opts)
+		if err != nil {
+			return err
+		}
+		log.Printf("ingress %v updated", ingress.Name)
 	case *corev1.ConfigMap:
 		config := resource.(*corev1.ConfigMap)
 		c, err := clientset.CoreV1().ConfigMaps("cocsn").Get(ctx, env+"-config", getOpts)
@@ -128,6 +170,7 @@ func update(clientset *kubernetes.Clientset, resource metav1.Common, env string)
 		if err != nil {
 			return err
 		}
+		log.Printf("configMap %v updated", config.Name)
 	case *appv1.Deployment:
 		deployment := resource.(*appv1.Deployment)
 		d, err := clientset.AppsV1().Deployments("cocsn").Get(ctx, env, getOpts)
@@ -139,26 +182,40 @@ func update(clientset *kubernetes.Clientset, resource metav1.Common, env string)
 		if err != nil {
 			return err
 		}
+		log.Printf("deployment %v updated", deployment.Name)
 	default:
 		return &nucleus.ErrInvalidParameters{}
 	}
 	return nil
 }
 
-func remove(clientset *kubernetes.Clientset, env string) error {
+func remove(clientset *kubernetes.Clientset, tag string) error {
+	env := "gosdn-" + tag
 	opts := metav1.DeleteOptions{}
 	ctx := context.Background()
 	err := clientset.CoreV1().Services("cocsn").Delete(ctx, env, opts)
 	if err != nil {
-		log.Println(err)
+		log.Error(err)
+	} else {
+		log.Printf("service %v deleted", env)
 	}
 	err = clientset.CoreV1().ConfigMaps("cocsn").Delete(ctx, env+"-config", opts)
 	if err != nil {
-		log.Println(err)
+		log.Error(err)
+	} else {
+		log.Printf("config %v deleted", env+"-config")
 	}
 	err = clientset.AppsV1().Deployments("cocsn").Delete(ctx, env, opts)
 	if err != nil {
-		log.Println(err)
+		log.Error(err)
+	} else {
+		log.Printf("deployment %v deleted", env)
+	}
+	err = clientset.NetworkingV1beta1().Ingresses("cocsn").Delete(ctx, env, opts)
+	if err != nil {
+		log.Error(err)
+	} else {
+		log.Printf("ingress %v deleted", env)
 	}
 	return err
 }
@@ -295,3 +352,37 @@ func createConfigMap(env string) *corev1.ConfigMap {
 		Data: map[string]string{"gosdn.toml": "#empty"},
 	}
 }
+
+func createIngress(env string) *netv1.Ingress {
+	return &netv1.Ingress{
+		TypeMeta: metav1.TypeMeta{
+			Kind:       "Ingress",
+			APIVersion: "v1",
+		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      env,
+			Namespace: "cocsn",
+		},
+		Spec: netv1.IngressSpec{
+			Rules: []netv1.IngressRule{
+				{
+					Host: env + ".apps.ocp.fbi.h-da.de",
+					IngressRuleValue: netv1.IngressRuleValue{
+						HTTP: &netv1.HTTPIngressRuleValue{
+							Paths: []netv1.HTTPIngressPath{
+								{
+									Path: "/api",
+									Backend: netv1.IngressBackend{
+										ServiceName: env,
+										ServicePort: intstr.IntOrString{IntVal: 8080},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+		Status: netv1.IngressStatus{},
+	}
+}