NGX-733: do not remove site configs that match given patterns

defaults/main.yml

@@ -54,3 +54,7 @@ wp_system_path: "/home/{{ system_user }}/{{ wp_system_folder }}"
 
 # metavar that helps control some tasks that should not run
 install_wordpress: true
+
+# site config conf files matching these patterns will not be removed from /etc/nginx/conf.d/
+preserve_site_config_patterns:
+  - "{{ site_domain }}.conf"

tasks/ultrastack.yml

@@ -16,6 +16,15 @@
     file: vars/nginx_cache_profiles/{{ nginx_cache_profile }}.yml
   tags: profile
 
+- name: Configure upstream server groups
+  template:
+    src: etc/nginx/conf.d/upstream.conf.j2
+    dest: /etc/nginx/conf.d/upstream.conf
+    owner: root
+    group: root
+    mode: 0644
+  notify: restart nginx
+
 - name: Configure site-specific NGINX proxy
   template:
     src: etc/nginx/conf.d/site.conf.j2
@@ -43,7 +52,7 @@
     paths: /etc/nginx/conf.d
     file_type: file
     contains: '.*site\.conf\.j2.*'
-    excludes: "{{ site_domain }}.conf"
+    excludes: "{{ preserve_site_config_patterns }}"
   register: nginx_extra_sites
 
 - name: Remove extra site configs

templates/etc/nginx/conf.d/site.conf.j2

@@ -3,15 +3,6 @@
 # tags: site.conf.j2
 
 
-upstream http_backend {
-{% if use_letsencrypt is defined and use_letsencrypt|bool %}
-    server 127.0.0.1:8443;
-{% else %}
-    server 127.0.0.1:8080;
-{% endif %}    
-    keepalive 2;
-}
-
 server {
     listen 80;
 {% if use_letsencrypt is defined and use_letsencrypt|bool %}