Install docker on bilimbi

Bilimbi.yml

@@ -13,6 +13,7 @@
     - include: tasks/sudo.yml
     - include: tasks/ssh.yml
     - include: tasks/dotfiles.yml
+    - include: tasks/docker.yml
 
   handlers:
     - name: restart sshd

tasks/docker.yml

@@ -0,0 +1,47 @@
+---
+- name: Remove depot docker version
+  apt: 
+    name: "{{ item }}"
+    state: absent
+  with_items:
+    - docker 
+    - docker-engine
+    - docker.io
+
+- name: Install tool to use apt with https
+  apt: 
+    name: "{{ item }}"
+    state: present
+  with_items:
+    - apt-transport-https
+    - ca-certificates
+
+- name: Add Docker apt key.
+  apt_key:
+    url: https://download.docker.com/linux/ubuntu/gpg
+    id: 9DC858229FC7DD38854AE2D88D81803C0EBFCD88
+    state: present
+    register: add_repository_key
+
+- name: Ensure curl is present (on older systems without SNI).
+  package: 
+    - name: curl
+    - state: present
+  when: add_repository_key is failed
+
+- name: Add Docker apt key (alternative for older systems without SNI).
+  shell: "curl -sSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -"
+  args:
+    warn: no
+  when: add_repository_key is failed
+
+- name: Add Docker repository.
+  apt_repository:
+    repo: deb https://apt.dockerproject.org/repo debian-stretch main
+    state: present
+    update_cache: yes
+
+- name: Install docker-ce
+  apt: 
+    name: docker-ce
+    state: present