improve nginx installation method

defaults/main.yml

@@ -24,4 +24,6 @@ snippet_files:
 #default_robots_file: 'robots_disallow_all.txt'
 
 
-nginx__dhparam_size: 2048
+nginx__dhparam_size: 4096
+
+nxinx__state: 'present'

tasks/installation.yml

@@ -1,11 +1,15 @@
 ---
+- name: Update apt cache
+  become: true
+  apt:
+    cache_valid_time: 3600
+    update_cache: true
+  when:
+    - ansible_pkg_mgr == "apt"
 
 - name: Install nginx
-  apt:
+  become: true
-    package:
+  package:
+    name:
       - 'nginx'
-    state: latest
+    state: "{{ nxinx__state }}"
-    update_cache: yes
-    cache_valid_time: 43200
-  tags:
-    - installation

tasks/main.yml

@@ -1,19 +1,9 @@
 ---
-
 - name: Install nginx
   include_tasks: installation.yml
-  tags:
-    - repository
-    - installation
-
 
 - name: Configure nginx
   include_tasks: nginx.yml
-  tags:
-    - configuration
-    - nginx
-    - dhparam
-
 
 - name: Start nginx webserver
   service:
@@ -24,7 +14,6 @@
     - operation
     - nginx
 
-
 - name: Configure nginx default site
   include_tasks: default_site.yml
   tags:
@@ -32,7 +21,6 @@
     - nginx
     - sites
 
-
 - name: Configure nginx sites
   include_tasks: single_site.yml
   with_items: '{{ nginx_sites }}'
@@ -43,12 +31,10 @@
     - nginx
     - sites
 
-
 # Restart nginx before doing acme stuff
 - name: Flush handlers to restart nginx now
   meta: flush_handlers
 
-
 - name: Configure acmetool and obtain certificates
   include_tasks: acme.yml
   tags: