DevOps (Day: 59) Ansible Project

Dear Learners, In Today Article we will learn on the topic Ansible Project.

TABLE OF CONTENTS:-

Task: Creating a WebPage through Ansible.

Ansible Playooks are Amazing as you learned yesterday. What if you deploy a simple web application with the help of Ansible tool.

Task-01

Create an EC2 instance, make sure all the 3 instances are created with same key pair.

To create 3 EC2 instances, navigate to the EC2 service and launch them.

After creating the 3 EC2 instances,designate one instance as the Ansible control node (Ansible_Master) and the other two instances as managed nodes( ansible_server).

Install the Ansible in master server.

Connect to your EC2 instance using SSH.

Add the Ansible PPA repository using the following command.

sudo apt-add-repository ppa:ansible/ansible        

Update the Package using the following commands.

sudo apt update -y         

Install the Ansible using the following command:

sudo apt install ansible -y         

Once the installation is done is complete,you can check the version of Ansible using the following command:

ansible --version        

Copy the private key form the local to host server (ansible_server) at (/home/ubuntu/.ssh)

Copy the private form the local.

To proceed with the setup,copy the private key to the Ansible Control node (ansible_master) by creating a new file at /home/ubuntu/.ssh and pasting the private key in that file.

Give permissions to the private key using file using chmod command.

Access the inventory file using sudo nano /etc/ansible/hosts

Create inventory file at location /etc/ansible/hosts which is by default location of file. Ansible hosts file is a configuration file that contains a list of hosts or servers. Add the IP addresses of the servers also add private key file location to use for authentication are highlighted in the white colour.

Create a Playbook to install the Nginx.

If you need the ansible playbook syntax you can direct copy form these link, It will be helpful and save your time.

https://theraloss.com/how-to-configure-nginx-using-ansible-on-ubuntu/

In this playbook, we firstly specify the name of the playbook (install the Nginx) and the hosts we want to target(servers). We also set become yes to run the tasks with the root priviligies.

First task updates the apt cache on the manages nodes using the apt module. The second task installs the latest version of the Nginx using the same module. The third task uses service module to start the nginx service by specfying the service name (nginx) and setting the state parmeter. to started.

Now let's discuss the how to run Playbook using the ansible-playbook command.

ansible-playbook file-name.yml        

To check the Status of Nginx on the 2 EC2 instances Highlight in the colour.

Now Deploy a sample webpage using the ansible playbooks.

Create a new file index.html in the playbook directory, and add some sample content.

Update a ansible playbook file, install_nginx.yml in the playbook directory.

This playbook will copy the index.html file to the defuslt Nginx web server document root directory at /var/www/html/.

Run the Playbooks.

Once the Playbook finishe executing,open a web browser and enter the public IP Address of one of the EC2 instance running Nginx.

Testing of the Server1:

Testing of the Server2:

Hope I helped you in understanding the concept in a better way!!

Happy Learning!!

Next Topic:

Day 60: Terraform Infrastructure as a code.