Create a LoadBalancer for nginx.

README.md

@@ -126,6 +126,8 @@ nginx   NodePort   172.20.10.182   <none>        80:31234/TCP   6m8s   app=Nginx
 
 ### Reaching the app.
 
+#### Using the NodePort
+
 It is not possible with terraform output to retrieve the configured nodes. However, it is possible to retrieve IPs for our nodes using aws cli:
 
 ```sh
@@ -146,6 +148,31 @@ $ curl http://$CLUSTER_IP:31234/
 ```
 
 
+#### Using the LoadBalancer
+
+This approach is simpler, as it is just needed to retrieve the created the LoadBalancer external address, either by using `kubectl` or `terraform output`:
+
+```sh
+$ kubectl get svc -n testaroo nginx-lb
+NAME       TYPE           CLUSTER-IP       EXTERNAL-IP                                                              PORT(S)        AGE
+nginx-lb   LoadBalancer   172.20.149.132   a34059e68106b41a292730b5defe734b-581837320.eu-west-3.elb.amazonaws.com   80:31698/TCP   3m50s
+
+$ terraform output                                                                                                                 09:59:47
+lb-address = "a34059e68106b41a292730b5defe734b-581837320.eu-west-3.elb.amazonaws.com"
+```
+
+The service should be reachable directly using it:
+
+```sh
+$ curl http://$(terraform output -raw lb-address):80/
+<!DOCTYPE html>
+<html>
+<head>
+<title>Welcome to nginx!</title>
+...
+```
+
+
 ### Reaching the/a node ssh port:
 
 Still using the AWS CLI to retrieve nodes, just:
@@ -182,7 +209,7 @@ PID   USER     TIME  COMMAND
 $ kubectl exec -ti -n testaroo alpine -- sh
 / # echo "hello world"
 hello world
-/ # 
+/ #
 ```
 
 ## Todo: