How to install docker to ansible

Ansible can be used to automate and simplify the process of installing Docker on servers. This involves:

• Installing Ansible on a control node

• Configuring Ansible to connect to remote hosts

• Creating an Ansible playbook with tasks to:

  • Install required system packages

  • Add Docker GPG key

  • Add Docker repository

  • Install Docker

  • Pull Docker images

  • Create Docker containers

Here are the steps to install Docker using Ansible:

1. Install Ansible on your control node using:

    brew install ansible   # For Mac
    sudo apt install ansible # For Ubuntu
   

2. Configure Ansible by creating an inventory file with the IP of your remote host and generating SSH keys.

3. Create a playbook playbook.yml with tasks to:

    - name: Install required packages
     apt: 
       name: "{{ item }}"
       state: latest
     with_items: 
       - apt-transport-https
       - ca-certificates
       - curl
   
    - name: Add Docker GPG key
     apt_key:
       url: https://download.docker.com/linux/ubuntu/gpg
       state: present
   
    - name: Add Docker repository
     apt_repository: 
       repo: deb https://download.docker.com/linux/ubuntu focal stable
   
    - name: Install docker-ce
     apt: 
       name: docker-ce
       state: latest
   

   Run the playbook on your remote host:

    ansible-playbook -i inventory playbook.yml
   

4. Docker will be installed on your remote host. You can then pull images and create containers using tasks in your playbook