🙏 Introduction:

In this blog, we will deploy a simple web app using ansible.

🎯Task: 1

1. Create 3 EC2 instances, make sure all three are created with same key pair

• Three EC2 instances are created that include Ansible master node and Ansible servers.

1. Install Ansible in host server

• Create the ansible repository in the master

sudo apt-add-repository ppa:ansible/ansible

• Update the master node

sudo apt update

• Install Ansible in the master node

sudo apt install ansible

1. Copy the private key from local to Host server (Ansible_host) at (/home/ubuntu/.ssh)

• Copy the private key that you have created while creating Ansible master node and Ansible servers

• Create an ansible key file in .ssh directory and store the copied private key

• Give access permission for the ansible_key

sudo chmod 700 ansible_key

1. Access the inventory file using sudo vim /etc/ansible/hosts

• Update the inventory file

[servers]
host_1 ansible_host=52.39.126.158
host_2 ansible_host=35.89.144.134

[all:vars]
ansible_python_interpreter=/usr/bin/python3
ansible_user=ubuntu
ansible_ssh_private_key_file=/home/ubuntu/.ssh/ansible_key

1. Create a playbook to install Nginx

• Create a file with name install_nginx.yml

---
- name: Install Nginx
  hosts: all
  become: yes  

  tasks:
    - name: Update apt 
      apt:
        update_cache: yes

    - name: Install Nginx
      apt:
        name: nginx
        state: latest

    - name: Start and enable Nginx service
      service:
        name: nginx
        state: started
        enabled: yes

• Run the the ansible-playbook

ansible-playbook install_nginx.yml

1. Deploy a sample webpage using the ansible playbook

• Create a webpage index.html file in the master node

<!DOCTYPE html>
<html>
    <h1>Hello Guys , Welcome to my page</h1>
    <h2>This is a sample webpage</h2>
</html>

• Update the ansible-playbook

---
- name: Install Nginx
  hosts: all
  become: 'yes'
  tasks:
    - name: Update apt
      apt:
        update_cache: 'yes'
    - name: Install Nginx
      apt:
        name: nginx
        state: latest
    - name: Start and enable Nginx service
      service:
        name: nginx
        state: started
        enabled: 'yes'
    - name: Deploy webpage
      copy:
        src: /home/ubuntu/index.html
        dest: /var/www/html/index.html

• Run the the ansible-playbook

ansible-playbook install_nginx.yml

• Login to the Ansible-Server1 to check the webpage

• Login to the Ansible-Server2 to check the webpage