Debian add docker repository and gpg key and install docker-ce (just for amd64)

dockersetup.yml

---
 - name: set up docker & compose
   hosts: docker
   become: yes

   tasks:
   - name: update package index
     apt:
       name: "*"
       state: latest
       update_cache: yes
       force_apt_get: yes

   - name: add packages
     apt:
       name: "{{ packagesdep }}"
       update_cache: yes
       force_apt_get: yes
       state: latest
     vars:
       packagesdep:
       - apt-transport-https
       - ca-certificates
       - curl
       - gnupg-agent
       - software-properties-common

   - name: add docker signing key
     apt_key:
       url: https://download.docker.com/linux/debian/gpg
       state: present

   - name: add docker repository
     apt_repository:
      repo: deb [arch=amd64] https://download.docker.com/linux/debian buster stable
      state: present

   - name: update package index
     apt:
       name: "*"
       state: latest
       update_cache: yes
       force_apt_get: yes

   - name: install docker
     apt:
       name: "docker-ce"
       state: latest