Added openwisp2_nginx_ipv6 variable

README.md

@@ -201,6 +201,8 @@ Below are listed all the variables you can customize.
         - django_extensions
     # spdy protocol in nginx is enabled by default
     openwisp2_nginx_spdy: true
+    # ipv6 must be enabled explicitly to avoid errors
+    openwisp2_nginx_ipv6: false
     # enable sentry
     openwisp2_sentry:
         dsn: "https://7d2e3cd61acc32eca1fb2a390f7b55e1:[email protected]:443/12345"

defaults/main.yml

@@ -25,5 +25,6 @@ openwisp2_http_allowed_ip: false
 openwisp2_extra_django_apps:
     - django_extensions
 openwisp2_nginx_spdy: true
+openwisp2_nginx_ipv6: false
 openwisp2_sentry:
     dsn: false

templates/nginx.j2

@@ -1,6 +1,6 @@
 server {
     listen 443 ssl{% if openwisp2_nginx_spdy %} spdy{% endif %};  # ipv4
-    #listen [::]:443 ssl;  # ipv6
+    {% if openwisp2_nginx_ipv6 %}listen [::]:443 ssl{% if openwisp2_nginx_spdy %} spdy{% endif %};  # ipv6{% endif %}
 
     # accepted hostnames on port 443
     server_name {{ inventory_hostname }}{% for host in openwisp2_allowed_hosts %} {{ host }}{% endfor %};
@@ -48,7 +48,7 @@ server {
 
 server {
     listen 80{% if openwisp2_nginx_spdy %} spdy{% endif %};  # ipv4
-    #listen [::]:80;  # ipv6
+    {% if openwisp2_nginx_ipv6 %}listen [::]:80{% if openwisp2_nginx_spdy %} spdy{% endif %};  # ipv6{% endif %}
 
     # accepted hostnames on port 80
     server_name {{ inventory_hostname }}{% for host in openwisp2_allowed_hosts %} {{ host }}{% endfor %};