Day 59 - Ansible Project 🔥

Ansible playbooks are amazing, as you learned yesterday. What if you deploy a simple web app using Ansible? Sounds like a good project, right? Let’s get started!

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Task-01: Create 3 EC2 Instances 🖥️☁️

1. Log in to AWS Management Console 🖥️

   

2. Navigate to EC2 Dashboard ➡️

   

3. Launch Instance:

   • Choose the Amazon Machine Image (AMI) (e.g., Ubuntu Server 20.04 LTS) 🐧.

   • Select the instance type (e.g., t2.micro for free tier) 💸.

   • Configure instance details:

     • Number of instances: 3

     • Network settings: Default VPC 🌐.

   • Add Storage: Leave the default settings 📦.

   • Add Tags: (Optional) Tag your instances for easy identification 🏷️.

   • Configure Security Group:

     • Add a rule to allow SSH (port 22) from your IP 🔒.

     • Add a rule to allow HTTP (port 80) from anywhere 🌍.

   • Review and Launch: Use the same key pair for all three instances (create a new one if you don’t have any) 🗝️.

     

Install Ansible on Host Server 🛠️

1. Connect to Your Host Server:

   • Open terminal and SSH into your EC2 instance (one of the three you just created) 💻.

    ssh -i /path/to/your-key-pair.pem ubuntu@your-ec2-instance-public-dns

2. Update Package Lists 🔄:

    sudo apt update
   

3. Install Ansible 📦:

    sudo apt-add-repository ppa:ansible/ansible
    sudo apt install ansible -y 
    sudo ansible --version
   

   

   

   

   

Copy the Private Key to Host Server (Ansible_host) 🔑

1. Transfer the Private Key:

   • From your local machine, copy the key to the host server using SCP 🚀.

    escp -i /path/to/your-key-pair.pem /path/to/your-key-pair.pem ubuntu@your-ec2-instance-public-dns:/home/ubuntu/.ssh/

2. Set Permissions on the Key:

   • SSH into your host server 💻.

    ssh -i /path/to/your-key-pair.pem ubuntu@your-ec2-instance-public-dns

• Change permissions of the private key 🔐.

    chmod 600 /home/ubuntu/.ssh/ansible_keys.pem

Access the Inventory File 📄

1. Edit the Ansible Hosts File ✏️:

    sudo vim /etc/ansible/hosts
   

   

2. Add Your EC2 Instances:

   • Add the IP addresses of your EC2 instances under a new group called [webservers] 🖥️.

    [servers]
    server01 ansible_host=3.136.18.176
    server02 ansible_host=3.137.211.34

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

Create a Playbook to Install Nginx 📜

1. Create Playbook File:

   • On your host server, create a new playbook file 📝.

    vim install_nginx.yml

2. Write the Playbook:

    ---
    - name: Install Nginx on web servers
      hosts: webservers
      become: yes
      tasks:
        - name: Ensure Nginx is installed
          apt:
            name: nginx
            state: present
   
        - name: Start Nginx service
          service:
            name: nginx
            state: started
            enabled: yes
   
        - name: Deploy sample web page
          copy:
            content: "<h1>Welcome to your Ansible-deployed web server!</h1>"
            dest: /var/www/html/index.html
   

Deploy the Sample Webpage Using the Ansible Playbook 🌐

1. Run the Playbook 🎉:

    ansible-playbook install_nginx.yml
   

   

   

Happy Learning! 😊🚀