ARTH — Task 10

🔰Write an Ansible PlayBook that does the following operations in the managed nodes:

🔹 Configure Docker

🔹 Start and enable Docker services

🔹 Pull the httpd server image from the Docker Hub

🔹 Run the docker container and expose it to the public

🔹 Copy the html code in /var/www/html directory and start the web server

Ansible is an open-source software provisioning, configuration management, and application-deployment tool enabling infrastructure as code. It runs on many Unix-like systems, and can configure both Unix-like systems as well as Microsoft Windows.

Note: I’m using one controller node and one host node for this task

How to install ansble

pip install ansible

then

yum install sshpass

to check it

type ansible — version

now to add inventory:

mkdir /ip.txt

This file acts as a DB of IPs to manage, in it

now, we know that it is inventory but ansible does not know it so we have to configure it

go to: cd /etc/ansible

make a file of any name but extension should be .cfg, in yhis file we write the path of inventory.

Note:I have added host_key_checking=false

now run : ansible all — list-hosts

Note: Prerequisites: Yum configured for docker

To check connectivity to the target nodes:type

ansible all -m ping

now to configure the yum using playbook:

as you can see yum is not configured yet

type : ansible-playbook — syntax-check <file_name.yml>

Ansible yum configuration

checking configuration

Yum playbook file

Now to install the docker using ansible: we have to configure the yum repo for docker ,so we have to add docker repo in the playbook

for installing the docker

now for docker i have created a another playbook

To install docker:

now the docker file

you are done