Overhaul reuse structure from role to task orientation

The overall config this will end up with is going to be nowhere
near complicated enough to require the segmented structure of roles.
A single directory of reusable tasks and resources will be much better

tasks/docker/install.yml

@@ -0,0 +1,36 @@
+---
+# Just use the same repo for cent7 and cent8 because ¯\_(ツ)_/¯
+- name: Install Docker repository
+  become: true
+  when: ansible_distribution == "CentOS"
+  yum_repository:
+    name: docker-ce-stable
+    description: Docker CE Stable - $basearch
+    file: docker-ce-stable
+    baseurl: https://download.docker.com/linux/centos/7/$basearch/stable
+    gpgcheck: false
+
+- name: Install Docker on Cent7
+  become: true
+  when: ansible_distribution == "CentOS" and ansible_distribution_major_version == "7"
+  yum:
+    # Update the cache to update with the new docker repo
+    update_cache: true
+    state: "{{ _runtime_update_state }}"
+    name:
+      - device-mapper-persistent-data  # Required for docker devicestorage driver
+      - lvm2                           #  same
+      - docker-ce
+      - containerd.io
+
+- name: Install Docker on Cent8
+  become: true
+  when: ansible_distribution == "CentOS" and ansible_distribution_major_version == "8"
+  dnf:
+    # Update the cache to update with the new docker repo
+    update_cache: true
+    state: "{{ _runtime_update_state }}"
+    name:
+      - device-mapper-persistent-data  # Required for docker devicestorage driver
+      - lvm2                           #  same
+      - docker-ce-3:18.09.1-3.el7