fix #101: enable symlinked vhosts

On Debian based systems the vhosts are symlinked when enabled.
This patch makes the role compatible with that workflow.

tasks/vhosts.yml

@@ -32,6 +32,23 @@
   with_items: "{{ nginx_vhosts }}"
   notify: reload nginx
 
+- name: Enable managed vhost config files.
+  file:
+    src: "{{ nginx_vhost_path }}/{{ item.filename|default(item.server_name.split(' ')[0] ~ '.conf') }}"
+    dest: "{{ nginx_vhost_symlink_path }}/{{ item.filename|default(item.server_name.split(' ')[0] ~ '.conf') }}"
+    state: link
+  when: nginx_vhost_symlink_path is defined and item.enabled|default(true) != false
+  with_items: "{{ nginx_vhosts }}"
+  notify: reload nginx
+
+- name: Disable managed vhost config files.
+  file:
+    path: "{{ nginx_vhost_symlink_path }}/{{ item.filename|default(item.server_name.split(' ')[0] ~ '.conf') }}"
+    state: absent
+  when: nginx_vhost_symlink_path is defined and item.enabled|default(true) == false
+  with_items: "{{ nginx_vhosts }}"
+  notify: reload nginx
+
 - name: Remove legacy vhosts.conf file.
   file:
     path: "{{ nginx_vhost_path }}/vhosts.conf"

templates/nginx.conf.j2

@@ -72,7 +72,9 @@ http {
 
 {% block http_includes %}
     include {{ nginx_conf_path }}/*.conf;
-{% if nginx_conf_path != nginx_vhost_path %}
+{% if nginx_vhost_symlink_path is defined %}
+    include {{ nginx_vhost_symlink_path }}/*;
+{% elif nginx_conf_path != nginx_vhost_path %}
     include {{ nginx_vhost_path }}/*;
 {% endif %}
 {% endblock %}

vars/Debian.yml

@@ -4,6 +4,7 @@ nginx_conf_path: /etc/nginx/conf.d
 nginx_conf_file_path: /etc/nginx/nginx.conf
 nginx_mime_file_path: /etc/nginx/mime.types
 nginx_pidfile: /run/nginx.pid
-nginx_vhost_path: /etc/nginx/sites-enabled
+nginx_vhost_path: /etc/nginx/sites-available
+nginx_vhost_symlink_path: /etc/nginx/sites-enabled
 nginx_default_vhost_path: /etc/nginx/sites-enabled/default
 __nginx_user: "www-data"