Making HTTPD Service Idempotent using Ansible Playbook

Problem:-

Restarting HTTPD Service is not idempotence in nature and also consume more resources. Suggest a way to rectify this challenge using the Ansible playbook.

Solution:-

This problem can easily be rectified using handlers.

A Handler is exactly the same as a Task, but it will run when called by another Task. A Handler will take an action when called by an event it listens for.

This is useful for secondary actions that might be required after running a Task, such as starting a new service after installation or reloading a service after a configuration change.

Code:-

- hosts: <host-name>
  vars:
  - port: "<port>"
  
  tasks:
  - name: "Add EPEl repo"
    yum_repository:
      name: epel
      description: "EPEL YUM repo"
      baseurl: https://download.fedoraproject.org/pub/epel/$releasever/$basearch/
   
  - name: "Install httpd"
    package:
      name: "httpd"
      state: present
  
  - name: "Copying conf file"
    template:
      dest: "/etc/httpd/conf.d/myhttpd.conf"
      src: "<src-file>"
    notify:
      - changed
  - name: "Adding rule for http"
    firewalld:
      port: "{{ port }}/tcp"
      state: enabled
      permanent: yes
      immediate: yes
  - name: "Staring httpd service"
    service:
      name: httpd
      state: started
  handlers:
    - name: changed
      service:
        name: "httpd"
        state: restarted
        enabled: yes

Note: Click here for Github Link.