feat: add environment_file var to allow writing alternative files

Merge branch 'ssteinerX' of https://github.com/ssteinerx/ansible-environment into develop

closes #2

Author: franklinkim

README.md

@@ -33,6 +33,9 @@ $ git clone https://github.com/weareinteractive/ansible-environment.git franklin
 
 Here is a list of all the default variables for this role, which are also available in `defaults/main.yml`.
 
+environment_file: /etc/environment
+environment_config:
+
 ```
 # environment_config:
 #   LC_ALL: en_US.UTF-8
@@ -48,10 +51,13 @@ environment_config:
   roles:
     - franklinkim.environment
   vars:
+  	environment_file: /some/other/place/.env
     environment_config:
       LC_ALL: C
 ```
 
+Default is to work on /env/environment.
+
 ## Testing
 
 ```

defaults/main.yml

@@ -5,4 +5,5 @@
 # environment_config:
 #   LC_ALL: en_US.UTF-8
 #
+environment_file: /etc/environment
 environment_config:

tasks/config.yml

@@ -1,14 +1,18 @@
 ---
 
+- name: Ensure file exists
+  file: path={{environment_file}} owner=www-data group=www-data state=touch
+
 - name: Remove previous values
   lineinfile:
-    dest: /etc/environment
+    dest: "{{ environment_file }}"
     regexp: '^{{ item.key | upper }}'
     state: absent
-  with_dict: environment_config
+  with_dict: "{{environment_config}}"
 
 - name: Configuring environment
   lineinfile:
-    dest: /etc/environment
-    line: '{{ item.key | upper }}="{{ item.value }}"'
-  with_dict: environment_config
+    dest: "{{ environment_file }}"
+    line: "{{ item.key | upper }}='{{ item.value }}'"
+  with_dict: "{{environment_config}}"
+