DEV Community

Alex Spinov
Alex Spinov

Posted on

Ansible Has a Free Automation Engine — Configure Servers Without Writing Scripts

A sysadmin needed to update Nginx config on 50 servers. SSH into each one? That is 50 terminal sessions and 50 chances to make a typo.

The Configuration Drift Problem

Manual server management does not scale. Shell scripts help but break silently. Chef and Puppet require agents installed on every server.

Ansible is a free, agentless automation engine. Write YAML playbooks, run them over SSH. No agents to install, no master server required.

What Ansible Offers for Free

  • Agentless - Uses SSH, no agent installation needed
  • YAML Playbooks - Human-readable automation scripts
  • Idempotent - Run playbooks multiple times safely
  • 3000+ Modules - Manage files, packages, services, cloud resources, databases
  • Roles - Reusable automation packages (Ansible Galaxy)
  • Inventory - Dynamic inventory from AWS, GCP, Azure, Kubernetes
  • Vault - Encrypt sensitive data (passwords, keys)
  • Check Mode - Dry run without making changes

Quick Example

- hosts: webservers
  tasks:
    - name: Install nginx
      apt: name=nginx state=latest
    - name: Start nginx
      service: name=nginx state=started enabled=yes
    - name: Deploy config
      template: src=nginx.conf.j2 dest=/etc/nginx/nginx.conf
      notify: Restart nginx
  handlers:
    - name: Restart nginx
      service: name=nginx state=restarted
Enter fullscreen mode Exit fullscreen mode
ansible-playbook -i inventory.ini deploy.yml
Enter fullscreen mode Exit fullscreen mode

GitHub: ansible/ansible - 64K+ stars


Need to monitor and scrape data from multiple web services automatically? I build custom scraping solutions. Check out my web scraping toolkit or email me at spinov001@gmail.com for a tailored solution.

Top comments (0)