Add reponse for ansible

Signed-off-by: Arnaud M <arnaud.choupinette@mailops.fr>

ansible/training/lessons/roles/proxy/templates/proxy.j2

@@ -0,0 +1,11 @@
+server {
+        listen {{src_port}};
+        listen [::]:{{src_port}};
+
+        access_log /var/log/nginx/reverse-access.log;
+        error_log /var/log/nginx/reverse-error.log;
+
+        location / {
+                    proxy_pass http://127.0.0.2:{{dst_port}};
+  }
+}