Devops_Ansible

install and configure docker using ansible playbook

Automate Docker with Ansible

Ansible is the way to automate Docker in your environment. Ansible enables you to operationalize your Docker container build and deployment process in ways that you’re likely doing manually today, or not doing at all.

Operation system

Red Hat Enterprise Linux 8.1
Centos 8
debian

Install docker repolist using ansible playbook

Before install docker you need to setup docker repolist

In debian distribution, installation will be made by "apt-get"

Install using the repository

sudo apt-get update

Add Docker’s official GPG key:

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

Install docker

$ sudo apt-get update  $$ apt-get install docker-ce docker-ce-cli containerd.io

Installation on redhat using ansible playbook

create a repolist file on /etc/yum.repo.d/

name: Create docker repolist
 file:
   path: /etc/yum.repos.d/dockerFile.repo
   state: touch
   ignore_errors: yes

Download an install docker repolist on docker official web site

- name: add docker repolist
     get_url:
       url: https://download.docker.com/linux/centos/docker-ce.repo
       dest: /etc/yum.repos.d/docker.repo

prerequis before install docker

on the remote make sure you install

• containerd There are many different ways to use containerd: If you are a developer working on containerd you can use the ctr tool to quickly test features and functionality without writing extra code If you want to integrate containerd into your project, you can use a simple client package. In this guide, w e will pull and run a Redis server with containerd using that client package.

- name: install cointened - prerequis for docker installation
      package:
        name: containerd
        state: absent
- name:  install containerd
  package:
    name: https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm
    state: present

• install python 3 and docker sdk for python

- name: INstall python3 
command:"yum install python3-pip -y"
- name: docker sdk for python
command: pip3 install docker
ignore_errors: yes

Install docker package

- name: install docker --nobest
      command: "yum install docker-ce -y --nobest"

Start docker service

- name: Start docker service
  package:
    name: docker
    state: started
    enable: yes