Websocket support enabled for reverse proxy locations. (#97)

* Websocket support for reverse proxy locations.

Author: carlba

README.md

@@ -350,6 +350,7 @@ nginx_http_template:
         backend:
           location: /
           proxy_pass: http://backend
+          websocket: false
       health_check_plus: false
     upstreams:
       upstream1:

defaults/main.yml

@@ -181,6 +181,7 @@ nginx_http_template:
         backend:
           location: /
           proxy_pass: http://backend
+          websocket: false
       health_check_plus: false
     upstreams:
       upstream1:

templates/http/default.conf.j2

@@ -41,6 +41,10 @@ server {
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header X-Forwarded-Proto $scheme;
+{% if item.value.reverse_proxy.locations[location].websocket is defined and item.value.reverse_proxy.locations[location].websocket %}
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "Upgrade";
+{% endif %}
     }
 
 {% endfor %}