Example #1
0
func main() {
	var ingClient client.IngressInterface
	if kubeClient, err := client.NewInCluster(); err != nil {
		log.Fatalf("Failed to create client: %v.", err)
	} else {
		ingClient = kubeClient.Extensions().Ingress(api.NamespaceAll)
	}
	tmpl, _ := template.New("nginx").Parse(nginxConf)
	rateLimiter := util.NewTokenBucketRateLimiter(0.1, 1)
	known := &extensions.IngressList{}

	// Controller loop
	shellOut("nginx")
	for {
		rateLimiter.Accept()
		ingresses, err := ingClient.List(labels.Everything(), fields.Everything())
		if err != nil || reflect.DeepEqual(ingresses.Items, known.Items) {
			continue
		}
		known = ingresses
		if w, err := os.Create("/etc/nginx/nginx.conf"); err != nil {
			log.Fatalf("Failed to open %v: %v", nginxConf, err)
		} else if err := tmpl.Execute(w, ingresses); err != nil {
			log.Fatalf("Failed to write template %v", err)
		}
		shellOut("nginx -s reload")
	}
}
Example #2
0
func main() {
	var ingClient client.IngressInterface
	if kubeClient, err := client.NewInCluster(); err != nil {
		log.Fatalf("Failed to create client: %v.", err)
	} else {
		ingClient = kubeClient.Extensions().Ingress("devops-test")
	}
	tmpl, _ := template.New("nginx").Parse(nginxConf)
	rateLimiter := util.NewTokenBucketRateLimiter(0.1, 1)
	known := &extensions.IngressList{}

	// Controller loop
	shellOut("nginx")
	for {
		rateLimiter.Accept()
		ingresses, err := ingClient.List(api.ListOptions{})
		if err != nil {
			log.Printf("Error retrieving ingresses: %v", err)
			continue
		}
		if reflect.DeepEqual(ingresses.Items, known.Items) {
			continue
		}
		known = ingresses
		if w, err := os.Create("/etc/nginx/nginx.conf"); err != nil {
			log.Fatalf("Failed to open %v: %v", nginxConf, err)
		} else if err := tmpl.Execute(w, ingresses); err != nil {
			log.Fatalf("Failed to write template %v", err)
		}

		restartNginx("nginx -t")

	}
}
Example #3
0
func main() {
	var ingClient client.IngressInterface
	if kubeClient, err := client.NewInCluster(); err != nil {
		log.Fatalf("Failed to create client: %v.", err)
	} else {
		ingClient = kubeClient.Extensions().Ingress(os.Getenv("INGRESS_NAMESPACE"))
	}
	tmpl, _ := template.New("haproxy").Parse(haproxyConf)
	rateLimiter := util.NewTokenBucketRateLimiter(0.1, 1)
	known := &extensions.IngressList{}

	// Controller loop
	shellOut("haproxy -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy-private.pid")
	for {
		rateLimiter.Accept()
		ingresses, err := ingClient.List(api.ListOptions{})
		if err != nil {
			log.Printf("Error retrieving ingresses: %v", err)
			continue
		}
		if reflect.DeepEqual(ingresses.Items, known.Items) {
			log.Printf("Nothing Has Changed")
			continue
		}
		known = ingresses
		if w, err := os.Create("/etc/haproxy/haproxy.cfg"); err != nil {
			log.Fatalf("Failed to open %v: %v", haproxyConf, err)
			defer w.Close()
		} else if err := tmpl.Execute(w, ingresses); err != nil {
			log.Fatalf("Failed to write template %v", err)
		}
		restartHaproxy("haproxy_reload")
	}
}
Example #4
0
func main() {
	var ingClient client.IngressInterface
	var secretsClient client.SecretsInterface
	/* Anon http client
	config := client.Config{
		Host:     "http://localhost:8080",
		Username: "admin",
		Password: "admin",
	}
	kubeClient, err := client.New(&config)
	*/
	kubeClient, err := client.NewInCluster()
	if err != nil {
		log.Fatalf("Failed to create client: %v.", err)
	} else {
		ingClient = kubeClient.Extensions().Ingress(api.NamespaceAll)
		secretsClient = kubeClient.Secrets(api.NamespaceAll)
	}
	tmpl := template.New("nginx.tmpl").Funcs(template.FuncMap{"hasprefix": hasPrefix, "hassuffix": hasSuffix})
	if _, err := tmpl.ParseFiles("./nginx.tmpl"); err != nil {
		log.Fatalf("Failed to parse template %v", err)
	}

	rateLimiter := util.NewTokenBucketRateLimiter(0.1, 1)
	known := &extensions.IngressList{}
	known_secrets := &api.SecretList{}

	// Controller loop
	shellOut("nginx")
	for {
		rateLimiter.Accept()
		ingresses, err := ingClient.List(api.ListOptions{})
		if err != nil {
			log.Printf("Error retrieving ingresses: %v", err)
			continue
		}
		secrets, err := secretsClient.List(api.ListOptions{})
		if err != nil {
			log.Printf("Error retrieving secrets: %v", err)
			continue
		}
		if reflect.DeepEqual(ingresses.Items, known.Items) && reflect.DeepEqual(secrets.Items, known_secrets.Items) {
			continue
		}
		// Process SSL context
		// old values
		known = ingresses
		known_secrets = secrets
		// context variable
		context := &Context{Ingress: ingresses, Secrets: secrets}
		if w, err := os.Create("/etc/nginx/nginx.conf"); err != nil {
			log.Fatalf("Failed to open %v: %v", err)
		} else if err := tmpl.Execute(w, context); err != nil {
			log.Fatalf("Failed to write template %v", err)
		}
		shellOut("nginx -s reload")
	}
}
Example #5
0
func main() {
	var ingClient client.IngressInterface
	if kubeClient, err := client.NewInCluster(); err != nil {
		log.Fatalf("Failed to create client: %v.", err)
	} else {
		ingClient = kubeClient.Extensions().Ingress(api.NamespaceAll)
	}
	tmpl, _ := template.New("nginx").Parse(nginxConf)
	tmplSSL, _ := template.New("nginx").Parse(nginxSSLConf)
	rateLimiter := util.NewTokenBucketRateLimiter(0.1, 1)
	known := &extensions.IngressList{}

	// Controller loop
	//shellOut("nginx")
	for {
		rateLimiter.Accept()
		ingresses, err := ingClient.List(api.ListOptions{})

		fmt.Printf("Port %+v\n", ingresses.Items[0].Spec.Rules[0].HTTP.Paths[0].Backend.ServicePort.IntValue())
		fmt.Printf("Path %+v\n", ingresses.Items[0].Spec.Rules[0].HTTP.Paths[0].Path)

		var httpIngressList extensions.IngressList
		var httpsIngressList extensions.IngressList

		for _, v := range ingresses.Items {
			fmt.Printf("%#v\n", v)
			if v.Spec.Rules[0].HTTP.Paths[0].Backend.ServicePort.IntVal == 80 {
				httpIngressList.Items = append(httpIngressList.Items, v)
			} else if v.Spec.Rules[0].HTTP.Paths[0].Backend.ServicePort.IntVal == 443 {
				httpsIngressList.Items = append(httpsIngressList.Items, v)
			}
		}

		if err != nil {
			log.Printf("Error retrieving ingresses: %v", err)
			continue
		}
		if reflect.DeepEqual(ingresses.Items, known.Items) {
			continue
		}
		known = ingresses
		if w, err := os.Create("/etc/nginx/conf.d/appcloud.conf"); err != nil {
			log.Fatalf("Failed to open %v: %v", nginxConf, err)
		} else if err := tmpl.Execute(w, httpIngressList); err != nil {
			log.Fatalf("Failed to write template %v", err)
		}

		if w, err := os.Create("/etc/nginx/conf.d/appcloud-ssl.conf"); err != nil {
			log.Fatalf("Failed to open %v: %v", nginxSSLConf, err)
		} else if err := tmplSSL.Execute(w, httpsIngressList); err != nil {
			log.Fatalf("Failed to write template %v", err)
		}

		//	shellOut("nginx -s reload")
	}
}