Ansible Playbook – Install Docker on CentOS 7

The following example was taken as a Playbook.

This Playbook runs on the “docker” host group, installs the necessary packages for Docker, adds the Docker repository, installs Docker, launches it and adds it to autorun. Also adds the user “artem” to the group “docker“

docker.yaml

---
- name: Install Docker
  gather_facts: No
  hosts: docker

  tasks:
    - name: Install yum utils
      yum:
        name: yum-utils
        state: latest

    - name: Install device-mapper-persistent-data
      yum:
        name: device-mapper-persistent-data
        state: latest

    - name: Install lvm2
      yum:
        name: lvm2
        state: latest

    - name: Add Docker repo
      get_url:
        url: https://download.docker.com/linux/centos/docker-ce.repo
        dest: /etc/yum.repos.d/docker-ce.repo
      become: yes

    - name: Install Docker
      package:
        name: docker-ce
        state: latest
      become: yes

    - name: Start Docker service
      service:
        name: docker
        state: started
        enabled: yes
      become: yes

    - name: Add user artem to docker group
      user:
        name: artem
        groups: docker
        append: yes
      become: yes

Apply Playbook:

ansible-playbook docker.yaml

Tagged: Tags Ansible CentOS Docker Playbook