Ansible Conditions

Conditions

When

---
- name: Install Apache WebServer
  hosts: localhost
  
  tasks:
    - name: Install Apache on Ubuntu Server
      apt-get:
        name: apache2
        state: present
      when: ansible_os_family == “Ubuntu“

- name: Install Apache on CentOS  Server
  yum:
    name: httpd
    state: present
  when: ansible_os_family == "RedHat"

---
- name: Enable service on firewalld
  hosts: localhost
  tasks:

- name: Open port for http
  firewalld:
   service: http
   permanent: true
   state: enabled
  notify:
  - Reload firewalld
 
- name: Ensure firewalld is running
    service:
     name: firewalld
     state: started

handlers:
  - name: Reload firewalld
    service:
     name: firewalld
     state: reloaded

ansible_os_family is a built in variable you can get a list of all ansible built in variables by running

ansible localhost -m setup

Loops

---
- name: Install packages thru loop
  hosts: localhost
  vars:
   packages: [ftp,telnet,htop)  

  tasks:
- name: Install package
  yum
    name: ‘{{items}}’
    state: present
  with_items: ‘{{packages}}’

---
- name: Create users thru loop
  hosts: localhost

  tasks:
- name: Create users
  user:
    name: ""{{ item }}""
  loop:
      - jerry
      - kramer
      - eliane

---
- name: Create users thru loop
  hosts: localhost
  vars:
   users: [jerry,kramer,eliane]  

  tasks:
- name: Create users
  user:
    name: '{{item}}'
  with_items: ‘{{users}}’