---
- name: Check if firewalld is installed
  yum:
    list: firewalld
    disablerepo: "*"
  register: firewalld_check

- name: Stop and disable firewalld if exists
  service:
    name: firewalld
    state: stopped
    enabled: no
  when: firewalld_check.results|selectattr('yumstate', 'match', 'installed')|list|length != 0

- name: Flush iptables
  iptables:
    flush: true