Add nginx_enable variable

Users can now choose to only install NGINX Unit

README.md

@@ -102,6 +102,10 @@ Role Variables
 This role has multiple variables. The defaults for all these variables are the following:
 
     ---
+    # Install NGINX.
+    # Default is true.
+    nginx_enable: true
+
     # Specify which version of NGINX you want to install.
     # Options are 'opensource' or 'plus'.
     # Default is 'opensource'.
@@ -131,12 +135,6 @@ This role has multiple variables. The defaults for all these variables are the f
     # Default is mainline.
     branch: mainline
 
-    # Install NGINX Unit and NGINX Unit modules.
-    # Use a list of supported NGINX Unit modules.
-    # Default is false.
-    unit_enable: false
-    unit_modules: null
-
     # Install NGINX JavaScript, Perl, ModSecurity WAF (NGINX Plus only), GeoIP, Image-Filter, RTMP Media Streaming, and/or XSLT modules.
     # Default is false.
     modules:
@@ -195,6 +193,12 @@ This role has multiple variables. The defaults for all these variables are the f
     stream_template_enable: false
     stream_template_listen: 12345
 
+    # Install NGINX Unit and NGINX Unit modules.
+    # Use a list of supported NGINX Unit modules.
+    # Default is false.
+    unit_enable: false
+    unit_modules: null
+
 Dependencies
 ------------
 

defaults/main.yml

@@ -1,4 +1,8 @@
 ---
+# Install NGINX.
+# Default is true.
+nginx_enable: true
+
 # Specify which version of NGINX you want to install.
 # Options are 'opensource' or 'plus'.
 # Default is 'opensource'.
@@ -28,12 +32,6 @@ nginx_repository:
 # Default is mainline.
 branch: mainline
 
-# Install NGINX Unit and NGINX Unit modules.
-# Use a list of supported NGINX Unit modules.
-# Default is false.
-unit_enable: false
-unit_modules: null
-
 # Install NGINX JavaScript, Perl, ModSecurity WAF (NGINX Plus only), GeoIP, Image-Filter, RTMP Media Streaming, and/or XSLT modules.
 # Default is false.
 modules:
@@ -91,3 +89,9 @@ http_template_listen: 80
 http_template_server_name: localhost
 stream_template_enable: false
 stream_template_listen: 12345
+
+# Install NGINX Unit and NGINX Unit modules.
+# Use a list of supported NGINX Unit modules.
+# Default is false.
+unit_enable: false
+unit_modules: null

tasks/main.yml

@@ -5,47 +5,52 @@
 - import_tasks: keys/rpm-key.yml
   when: ansible_os_family == "RedHat" or ansible_os_family == "Suse"
 
-- import_tasks: opensource/install-oss.yml
+- name: "(Install: Debian/Ubuntu/CentOS/RedHat/FreeBSD) Install NGINX"
+  block:
+
+    - import_tasks: opensource/install-oss.yml
       when: type == "opensource"
 
-- import_tasks: plus/install-plus.yml
+    - import_tasks: plus/install-plus.yml
       when: type == "plus"
 
-- import_tasks: modules/install-njs.yml
+    - import_tasks: modules/install-njs.yml
       when: modules.njs
 
-- import_tasks: modules/install-perl.yml
+    - import_tasks: modules/install-perl.yml
       when: modules.perl
 
-- import_tasks: modules/install-geoip.yml
+    - import_tasks: modules/install-geoip.yml
       when: modules.geoip
 
-- import_tasks: modules/install-image-filter.yml
+    - import_tasks: modules/install-image-filter.yml
       when: modules.image_filter
 
-- import_tasks: modules/install-rtmp.yml
+    - import_tasks: modules/install-rtmp.yml
       when: modules.rtmp
 
-- import_tasks: modules/install-xslt.yml
+    - import_tasks: modules/install-xslt.yml
       when: modules.xslt
 
-- import_tasks: modules/install-waf.yml
+    - import_tasks: modules/install-waf.yml
       when: modules.waf and type == "plus"
 
-- import_tasks: conf/push-config.yml
+    - import_tasks: conf/push-config.yml
       when: main_push_enable or http_push_enable or stream_push_enable
 
-- import_tasks: conf/template-config.yml
+    - import_tasks: conf/template-config.yml
       when: main_template_enable or http_template_enable or stream_template_enable
 
-- import_tasks: conf/setup-status.yml
+    - import_tasks: conf/setup-status.yml
       when: status_enable
 
-- import_tasks: conf/setup-rest-api.yml
+    - import_tasks: conf/setup-rest-api.yml
       when: rest_api_enable and type == "plus"
 
-- import_tasks: amplify/install-amplify.yml
+    - import_tasks: amplify/install-amplify.yml
       when: amplify_enable and amplify_key is defined and amplify_key
 
+  when: nginx_enable
+
 - import_tasks: unit/install-unit.yml
   when: unit_enable

tasks/opensource/install-oss.yml

@@ -1,5 +1,5 @@
 ---
-- name: ""
+- name: "(Install: Debian/Ubuntu/CentOS/RedHat/FreeBSD) Install NGINX"
   block:
 
     - import_tasks: setup-debian.yml