Use ansible galaxy to install docker

ansible/ansible.cfg

@@ -2,6 +2,7 @@
 nocows = 1
 host_key_checking = False
 retry_files_enabled = False
+roles_path = $PWD/galaxy_roles:$PWD/roles
 inventory = ./hosts
 become_ask_pass = True
 

ansible/main.yml

@@ -10,4 +10,10 @@
 - hosts: intersect
   roles:
     - ssh
+    - role: geerlingguy.docker
+      become: true
+      vars:
+        docker_install_compose: false  # This role installs the binary directly, which is kinda nasty
+        docker_users:
+          - "{{ user }}"
     - docker

ansible/requirements.yaml

@@ -0,0 +1 @@
+- src: geerlingguy.docker

ansible/roles/docker/tasks/setup-docker.yml

@@ -1,27 +1,8 @@
-- name: Add docker apt key
-  apt_key:
-    url: https://download.docker.com/linux/ubuntu/gpg
-    state: present
-  become: true
-  become_user: root
-
-- name: Add docker repo
-  apt_repository:
-    repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
-    state: present
-  become: true
-  become_user: root
-
-- name: Install Docker and docker-compose
+- name: Install docker-compose
   apt:
-    name: "{{ item }}"
+    name: "docker-compose"
   become: true
   become_user: root
-  loop:
-    - docker-ce
-    - docker-ce-cli
-    - containerd.io
-    - docker-compose
 
 - name: Create docker user
   user: