make optional to add the official docker repos

defaults/main.yml

@@ -15,6 +15,8 @@ docker_compose_version: "1.25.4"
 docker_compose_path: /usr/local/bin/docker-compose
 
 # Used only for Debian/Ubuntu. Switch 'stable' to 'edge' if needed.
+docker_apt_add_official_repository: true
+# options below apply if you add the official repo using this role (which is the default)
 docker_apt_release_channel: stable
 docker_apt_arch: amd64
 docker_apt_repository: "deb [arch={{ docker_apt_arch }}] https://download.docker.com/linux/{{ ansible_distribution | lower }} {{ ansible_distribution_release }} {{ docker_apt_release_channel }}"
@@ -22,6 +24,8 @@ docker_apt_ignore_key_error: true
 docker_apt_gpg_key: https://download.docker.com/linux/{{ ansible_distribution | lower }}/gpg
 
 # Used only for RedHat/CentOS/Fedora.
+docker_yum_add_official_repository: true
+# options below apply if you add the official repo using this role (which is the default)
 docker_yum_repo_url: https://download.docker.com/linux/{{ (ansible_distribution == "Fedora") | ternary("fedora","centos") }}/docker-{{ docker_edition }}.repo
 docker_yum_repo_enable_edge: '0'
 docker_yum_repo_enable_test: '0'

tasks/setup-Debian.yml

@@ -14,6 +14,9 @@
       - gnupg2
     state: present
 
+- name: Add official docker apt repository
+  block:
+
     - name: Add Docker apt key.
       apt_key:
         url: "{{ docker_apt_gpg_key }}"
@@ -38,3 +41,5 @@
         repo: "{{ docker_apt_repository }}"
         state: present
         update_cache: true
+
+  when: docker_apt_add_official_repository

tasks/setup-RedHat.yml

@@ -7,6 +7,9 @@
       - docker-engine
     state: absent
 
+- name: Add official docker yum repository
+  block:
+
     - name: Add Docker GPG key.
       rpm_key:
         key: "{{ docker_yum_gpg_key }}"
@@ -34,6 +37,8 @@
         option: enabled
         value: '{{ docker_yum_repo_enable_test }}'
 
+  when: docker_yum_add_official_repository
+
 - name: Install containerd separately (CentOS 8).
   package:
     name: https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm