New feature: upstream state (remove upstream if needed)

doc/upstream.md

@@ -11,6 +11,7 @@ Upstream params
 - `name`: upstream name. Can be use in vhost with *proxy_pass http://upstream_name*
 - `params`: list of param (hash, zone...)
 - `servers`: each upstream MUST have at least 1 server
+- `state`: Optional. Can be 'absent' or 'present'
 
 Server params
 -------------
@@ -38,4 +39,5 @@ nginx_upstreams:
         max_conns: 150
         weight: 10
         down: false
+    state: 'present'
 ```

tasks/upstream.yml

@@ -12,4 +12,13 @@
     src=etc/nginx/upstream/upstream.conf.j2
     dest={{ nginx_etc_dir }}/conf.d/upstream-{{ item.name }}.conf
   with_items: "{{ nginx_upstreams }}"
+  when: item.state is not defined or item.state == 'present'
+  notify: reload nginx
+
+- name: FILE | Delete other upstreams
+  file: >
+    path={{ nginx_etc_dir }}/conf.d/upstream-{{ item.name }}.conf
+    state=absent
+  with_items: "{{ nginx_upstreams }}"
+  when: item.state is defined and item.state == 'absent'
   notify: reload nginx

tests/test.yml

@@ -24,6 +24,13 @@
             max_conns: 150
             weight: 10
             down: false
+      - name: 'test-absent'
+        servers:
+          - path: '127.0.0.1:80'
+            max_conns: 150
+            weight: 10
+            down: false
+        state: 'absent'
     nginx_htpasswd:
       - name: 'hello'
         description: 'Please login!'