Understanding Ansible playbook using diagram

---
- hosts: localhost
  gather_facts: false

  vars:
    - a_var: derp

  pre_tasks:
    - name: pretask
      debug: msg="a pre task"
      changed_when: true
      notify: say hi

  roles:
    - role: simple
      derp: newval

  tasks:
    - name: task
      debug: msg="a task"
      changed_when: true
      notify: say hi

  post_tasks:
    - name: posttask
      debug: msg="a post task"
      changed_when: true
      notify: say hiCode language: JavaScript (javascript)

Example Playbook Code

---
- name: Update web servers
  hosts: web

  tasks:
  - name: Install Apache in centos7
    ansible.builtin.yum:
      name: httpd
      state: latest
  - name: Copy index.html
    ansible.builtin.copy:
      src: index.html
      dest: /var/www/html/index.html
  - name: Starting a Apache Server
    ansible.builtin.service:
      name: httpd
      state: started
Code language: JavaScript (javascript)

Rajesh Kumar

I’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked at Cotocus and regularly write about technology, travel, investing, health, product reviews, and digital marketing through my various platforms.

I publish technical articles at DevOps School, travel stories at Holiday Landmark, stock market insights at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow, and SEO and digital marketing strategies at Wizbrand.