Ansible Variable

Description: Here I have explained, what is Ansible Variable and how to use Variable in the playbook

What is Ansible Variable
Ansible supports variables that can be used to store values that can then be reused throughout files in an Ansible project. This can simplify the creation and maintenance of a project and reduce the number of errors

Example: Here I have created a playbook to install different services and start them using variables. Below is the playbook for the same

In this example I have created below variables
    web_pkg: httpd firewall_pkg: firewalld web_service: httpd firewall_service: firewalld service python_pkg: python3-PyMySQL rule: http

---
- name: Deploy and start Apache HTTPD service
  hosts: webserver
  vars:
    web_pkg: httpd
    firewall_pkg: firewalld
    web_service: httpd
    firewall_service: firewalld
    rule: http
  tasks:
    - name: Required packages are installed and up to date
      yum:
        name:
          - "{{ web_pkg }}"
          - "{{ firewall_pkg }}"
        state: latest
    - name: The {{ firewall_service }} service is started and enabled
      service:
        name: "{{ firewall_service }}"
        enabled: true
        state: started
    - name: The {{ web_service }} service is started and enabled
      service:
        name: "{{ web_service }}"
        enabled: true
        state: started
    - name: Web content is in place
      copy:
        content: "This is test Webserver"
        dest: /var/www/html/index.html
    - name: The firewall port for {{ rule }} is open
      firewalld:
        service: "{{ rule }}"
        permanent: true
        immediate: true
        state: enabled
- name: Verify the Apache service
  hosts: localhost
  become: false
  tasks:
  - name: Ensure the webserver is reachable
      uri:
        url: http://testwebserver.local
        status_code: 200

• Now run playbook using below command

          # ansible-playbook webserver.yaml

• You will get output as follow
  
  
  

• You can also browse URL and verify