Add option for disable the addition of official repository

tasks/elasticsearch-Debian.yml

@@ -43,12 +43,13 @@
     apt_key:
       url: '{{ es_apt_key }}'
       state: present
-    when: es_apt_key | string
+    when: es_add_repository and es_apt_key | string
 
   - name: Debian - Add elasticsearch repository
     apt_repository:
       repo: '{{ item.repo }}'
       state: '{{ item.state }}'
+    when: es_add_repository
     with_items:
       - { repo: "{{ es_apt_url_old }}", state: "absent" }
       - { repo: "{{ es_apt_url }}", state: "present" }

tasks/elasticsearch-RedHat.yml

@@ -16,7 +16,7 @@
   template:
     src: 'elasticsearch.repo'
     dest: '/etc/yum.repos.d/elasticsearch-{{ es_repo_name }}.repo'
-  when: es_use_repository
+  when: es_use_repository and es_add_repository
 
 - name: RedHat - remove unused Elasticsearch repo
   become: yes