Day 58: Journey into Ansible Playbooks

Day 58: Journey into Ansible Playbooks

Welcome to Day 58 of the #90DaysOfDevOps Challenge! Today, we're diving deep into Ansible Playbooks – the maestros orchestrating multiple tasks, defining configurations, and assigning roles. These playbooks streamline operations across your servers, akin to detailed instruction manuals guiding a seamless performance.

Understanding Ansible Playbooks:

  • Ansible playbooks act as choreographers, harmonizing tasks, roles, configurations, and variables for efficient deployment.

  • Their organizational prowess shines when managing multiple servers, streamlining actions, and ensuring tasks run exactly as users envision.

Task-01: Crafting Ansible Magic

1. Create a File on a Different Server:

  • Step 1: Open your preferred text editor and create a new file. This will be your Ansible playbook file with a .yml extension, for example, create_file.yml.

  • Step 2: Start the playbook by specifying the hosts. Define the target server(s) where you want to create the file. For instance:

      - hosts: your_target_server
        become: true
    
  • Step 3: Add tasks to the playbook. In this case, the task involves creating a file. Use the file Ansible module:

      - name: Create a file
          file:
            path: /path/to/your/file.txt
            state: touch
    
  • Step 4: Save the playbook file.

  • Step 5: Run the playbook using the ansible-playbook command:

      ansible-playbook create_file.yml
    

2. Create a New User:

  • Step 1: Create a new playbook file, e.g., create_user.yml.

  • Step 2: Define the target server(s) in the playbook:

      - hosts: your_target_server
        become: true
    
  • Step 3: Add tasks to create a new user. Use the user Ansible module:

      - name: Create a new user
          user:
            name: your_username
            state: present
    
  • Step 4: Save the playbook file.

  • Step 5: Run the playbook:

      ansible-playbook create_user.yml
    

3. Install Docker on a Group of Servers:

  • Step 1: Create a playbook file, e.g., install_docker.yml.

  • Step 2: Specify the target server group in the playbook:

      - hosts: your_server_group
        become: true
    
  • Step 3: Add tasks to install Docker. Utilize the apt module for Ubuntu servers:

      - name: Install Docker
          apt:
            name: docker.io
            state: present
    
  • Step 4: Save the playbook file.

  • Step 5: Run the playbook:

      ansible-playbook install_docker.yml
    

This Hashnode article serves as your comprehensive guide, breaking down each task into step-by-step instructions. Whether you're a beginner or advancing your automation skills, this resource is tailored to enrich your understanding.

Embark on this DevOps adventure with us! Happy learning! 🚀☁️

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