added ansible for deployment in private infrastrucutre

deploy/roles/docker/tasks/debian.yml

@@ -0,0 +1,17 @@
+---
+# Docker Package Installation
+- name: add Docker's official GPG key
+  apt_key:
+    state: present
+    url: "{{ docker.apt.signing_key_url }}"
+
+- name: add Docker apt repository
+  apt_repository:
+    repo: "{{ docker.apt.repo }}"
+    state: present
+
+- name: install Docker CE
+  apt:
+    name: "{{ docker.apt.package }}"
+    state: present
+    update_cache: yes

deploy/roles/docker/tasks/main.yml

@@ -0,0 +1,23 @@
+---
+# General Docker Setup
+- import_tasks: debian.yml
+  when: ansible_facts['os_family']|lower == 'debian' # debian, ubuntu
+
+- name: ensure the docker service starts at boot
+  systemd:
+    name: "{{ docker.service_name }}"
+    enabled: yes
+    state: started
+
+- name: create Docker group to avoid running as root
+  group:
+    name: "{{ docker.group_name }}"
+    state: present
+
+- name: add users to Docker group
+  user:
+    append: yes
+    groups:
+      - "{{ docker.group_name }}"
+    name: "{{ item }}"
+  loop: "{{ users }}"