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$ curl repovive.com/roadmaps/devops-sre-interview-prep/infrastructure-as-code/ansible-basics

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Repovive

Ansible Basics - Infrastructure as Code | DevOps/SRE Interview Prep | Repovive

Repovive.

DevOps/SRE Interview Prep16 sections · 139 units8h total

Open in Course

Ansible Basics

Configuration management

Ansible configures existing servers. It's agentless and uses SSH.

When to use Ansible vs Terraform:

Terraform: Provision infrastructure (create VMs, networks)
Ansible: Configure infrastructure (install packages, deploy apps)

Playbook example:

- hosts: webservers
  tasks:
    - name: Install nginx
      apt:
        name: nginx
        state: present
    - name: Start nginx
      service:
        name: nginx
        state: started

Interview tip: Know that Ansible is idempotent. Running a playbook twice produces the same result. This makes it safe to re-run.